https://source.android.com/ 
/*
 * Copyright (C) 2006 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.provider;

import static android.provider.SettingsValidators.ANY_INTEGER_VALIDATOR;
import static android.provider.SettingsValidators.ANY_STRING_VALIDATOR;
import static android.provider.SettingsValidators.BOOLEAN_VALIDATOR;
import static android.provider.SettingsValidators.COMPONENT_NAME_VALIDATOR;
import static android.provider.SettingsValidators.LENIENT_IP_ADDRESS_VALIDATOR;
import static android.provider.SettingsValidators.LOCALE_VALIDATOR;
import static android.provider.SettingsValidators.NON_NEGATIVE_INTEGER_VALIDATOR;
import static android.provider.SettingsValidators.NULLABLE_COMPONENT_NAME_VALIDATOR;
import static android.provider.SettingsValidators.PACKAGE_NAME_VALIDATOR;
import static android.provider.SettingsValidators.URI_VALIDATOR;

import android.Manifest;
import android.annotation.IntDef;
import android.annotation.IntRange;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.RequiresPermission;
import android.annotation.SdkConstant;
import android.annotation.SdkConstant.SdkConstantType;
import android.annotation.SystemApi;
import android.annotation.TestApi;
import android.annotation.UserIdInt;
import android.app.ActivityThread;
import android.app.AppOpsManager;
import android.app.Application;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.SearchManager;
import android.app.WallpaperManager;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.content.IContentProvider;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.database.Cursor;
import android.database.SQLException;
import android.location.LocationManager;
import android.media.AudioFormat;
import android.net.ConnectivityManager;
import android.net.NetworkScoreManager;
import android.net.Uri;
import android.net.wifi.WifiManager;
import android.os.BatteryManager;
import android.os.Binder;
import android.os.Build.VERSION_CODES;
import android.os.Bundle;
import android.os.DropBoxManager;
import android.os.IBinder;
import android.os.LocaleList;
import android.os.Process;
import android.os.RemoteException;
import android.os.ResultReceiver;
import android.os.ServiceManager;
import android.os.UserHandle;
import android.provider.SettingsValidators.Validator;
import android.speech.tts.TextToSpeech;
import android.telephony.SubscriptionManager;
import android.text.TextUtils;
import android.util.AndroidException;
import android.util.ArrayMap;
import android.util.ArraySet;
import android.util.Log;
import android.util.MemoryIntArray;
import android.view.textservice.TextServicesManager;

import com.android.internal.annotations.GuardedBy;
import com.android.internal.app.ColorDisplayController;
import com.android.internal.widget.ILockSettings;

import java.io.IOException;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.net.URISyntaxException;
import java.text.SimpleDateFormat;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Locale;
import java.util.Map;
import java.util.Set;


The Settings provider contains global system-level device preferences.

/**
 * The Settings provider contains global system-level device preferences.
 */
public final class Settings {

    // Intent actions for Settings

    
Activity Action: Show system settings.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show system settings.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_SETTINGS = "android.settings.SETTINGS";

    
Activity Action: Show settings to allow configuration of APNs.


Input: Nothing.


Output: Nothing.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.

/**
     * Activity Action: Show settings to allow configuration of APNs.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     *
     * <p class="note">
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_APN_SETTINGS = "android.settings.APN_SETTINGS";

    
Activity Action: Show settings to allow configuration of current location
sources.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of current location
     * sources.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_LOCATION_SOURCE_SETTINGS =
            "android.settings.LOCATION_SOURCE_SETTINGS";

    
Activity Action: Show scanning settings to allow configuration of Wi-Fi
and Bluetooth scanning settings.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

@hide
/**
     * Activity Action: Show scanning settings to allow configuration of Wi-Fi
     * and Bluetooth scanning settings.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_LOCATION_SCANNING_SETTINGS =
            "android.settings.LOCATION_SCANNING_SETTINGS";

    
Activity Action: Show settings to allow configuration of users.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

@hide
/**
     * Activity Action: Show settings to allow configuration of users.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_USER_SETTINGS =
            "android.settings.USER_SETTINGS";

    
Activity Action: Show settings to allow configuration of wireless controls
such as Wi-Fi, Bluetooth and Mobile networks.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of wireless controls
     * such as Wi-Fi, Bluetooth and Mobile networks.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_WIRELESS_SETTINGS =
            "android.settings.WIRELESS_SETTINGS";

    
Activity Action: Show tether provisioning activity.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.

 Input: ConnectivityManager.EXTRA_TETHER_TYPE should be included to specify which type of tethering should be checked. ConnectivityManager.EXTRA_PROVISION_CALLBACK should contain a ResultReceiver which will be called back with a tether result code. 
 Output: The result of the provisioning check. ConnectivityManager.TETHER_ERROR_NO_ERROR if successful, ConnectivityManager.TETHER_ERROR_PROVISION_FAILED for failure. 
@hide
/**
     * Activity Action: Show tether provisioning activity.
     *
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: {@link ConnectivityManager#EXTRA_TETHER_TYPE} should be included to specify which type
     * of tethering should be checked. {@link ConnectivityManager#EXTRA_PROVISION_CALLBACK} should
     * contain a {@link ResultReceiver} which will be called back with a tether result code.
     * <p>
     * Output: The result of the provisioning check.
     * {@link ConnectivityManager#TETHER_ERROR_NO_ERROR} if successful,
     * {@link ConnectivityManager#TETHER_ERROR_PROVISION_FAILED} for failure.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_TETHER_PROVISIONING =
            "android.settings.TETHER_PROVISIONING_UI";

    
Activity Action: Show settings to allow entering/exiting airplane mode.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow entering/exiting airplane mode.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_AIRPLANE_MODE_SETTINGS =
            "android.settings.AIRPLANE_MODE_SETTINGS";

    
Activity Action: Show mobile data usage list.

 Input: EXTRA_NETWORK_TEMPLATE and EXTRA_SUB_ID should be included to specify how and what mobile data statistics should be collected. 

Output: Nothing

@hide
/**
     * Activity Action: Show mobile data usage list.
     * <p>
     * Input: {@link EXTRA_NETWORK_TEMPLATE} and {@link EXTRA_SUB_ID} should be included to specify
     * how and what mobile data statistics should be collected.
     * <p>
     * Output: Nothing
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_MOBILE_DATA_USAGE =
            "android.settings.MOBILE_DATA_USAGE";

    
@hide
/** @hide */
    public static final String EXTRA_NETWORK_TEMPLATE = "network_template";

    
An int extra specifying a subscription ID.

See Also:
  • getSubscriptionId.getSubscriptionId
/**
     * An int extra specifying a subscription ID.
     *
     * @see android.telephony.SubscriptionInfo#getSubscriptionId
     */
    public static final String EXTRA_SUB_ID = "android.provider.extra.SUB_ID";

    
Activity Action: Modify Airplane mode settings using a voice command.


In some cases, a matching Activity may not exist, so ensure you safeguard against this.

 This intent MUST be started using 
startVoiceActivity. 
 Note: The activity implementing this intent MUST verify that isVoiceInteraction returns true before modifying the setting. 
 Input: To tell which state airplane mode should be set to, add the EXTRA_AIRPLANE_MODE_ENABLED extra to this Intent with the state specified. If the extra is not included, no changes will be made. 

Output: Nothing.

/**
     * Activity Action: Modify Airplane mode settings using a voice command.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
     * <p>
     * This intent MUST be started using
     * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
     * startVoiceActivity}.
     * <p>
     * Note: The activity implementing this intent MUST verify that
     * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction} returns true before
     * modifying the setting.
     * <p>
     * Input: To tell which state airplane mode should be set to, add the
     * {@link #EXTRA_AIRPLANE_MODE_ENABLED} extra to this Intent with the state specified.
     * If the extra is not included, no changes will be made.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_VOICE_CONTROL_AIRPLANE_MODE =
            "android.settings.VOICE_CONTROL_AIRPLANE_MODE";

    
Activity Action: Show settings for accessibility modules.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings for accessibility modules.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_ACCESSIBILITY_SETTINGS =
            "android.settings.ACCESSIBILITY_SETTINGS";

    
Activity Action: Show settings to control access to usage information.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to control access to usage information.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_USAGE_ACCESS_SETTINGS =
            "android.settings.USAGE_ACCESS_SETTINGS";

    
Activity Category: Show application settings related to usage access.

 An activity that provides a user interface for adjusting usage access related preferences for its containing application. Optional but recommended for apps that use PACKAGE_USAGE_STATS.PACKAGE_USAGE_STATS. 
 The activity may define meta-data to describe what usage access is used for within their app with METADATA_USAGE_ACCESS_REASON, which will be displayed in Settings. 

Input: Nothing.


Output: Nothing.

/**
     * Activity Category: Show application settings related to usage access.
     * <p>
     * An activity that provides a user interface for adjusting usage access related
     * preferences for its containing application. Optional but recommended for apps that
     * use {@link android.Manifest.permission#PACKAGE_USAGE_STATS}.
     * <p>
     * The activity may define meta-data to describe what usage access is
     * used for within their app with {@link #METADATA_USAGE_ACCESS_REASON}, which
     * will be displayed in Settings.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.INTENT_CATEGORY)
    public static final String INTENT_CATEGORY_USAGE_ACCESS_CONFIG =
            "android.intent.category.USAGE_ACCESS_CONFIG";

    
Metadata key: Reason for needing usage access.

 A key for metadata attached to an activity that receives action INTENT_CATEGORY_USAGE_ACCESS_CONFIG, shown to the user as description of how the app uses usage access. 


/**
     * Metadata key: Reason for needing usage access.
     * <p>
     * A key for metadata attached to an activity that receives action
     * {@link #INTENT_CATEGORY_USAGE_ACCESS_CONFIG}, shown to the
     * user as description of how the app uses usage access.
     * <p>
     */
    public static final String METADATA_USAGE_ACCESS_REASON =
            "android.settings.metadata.USAGE_ACCESS_REASON";

    
Activity Action: Show settings to allow configuration of security and
location privacy.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of security and
     * location privacy.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_SECURITY_SETTINGS =
            "android.settings.SECURITY_SETTINGS";

    
Activity Action: Show settings to allow configuration of trusted external sources
Input: Optionally, the Intent's data URI can specify the application package name to
directly invoke the management GUI specific to the package name. For example
"package:com.my.app".


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of trusted external sources
     *
     * Input: Optionally, the Intent's data URI can specify the application package name to
     * directly invoke the management GUI specific to the package name. For example
     * "package:com.my.app".
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_MANAGE_UNKNOWN_APP_SOURCES =
            "android.settings.MANAGE_UNKNOWN_APP_SOURCES";

    
Activity Action: Show trusted credentials settings, opening to the user tab,
to allow management of installed credentials.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

@hide
/**
     * Activity Action: Show trusted credentials settings, opening to the user tab,
     * to allow management of installed credentials.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_TRUSTED_CREDENTIALS_USER =
            "com.android.settings.TRUSTED_CREDENTIALS_USER";

    
Activity Action: Show dialog explaining that an installed CA cert may enable
monitoring of encrypted network traffic.

 In some cases, a matching Activity may not exist, so ensure you safeguard against this. Add EXTRA_NUMBER_OF_CERTIFICATES extra to indicate the number of certificates. 

Input: Nothing.


Output: Nothing.

@hide
/**
     * Activity Action: Show dialog explaining that an installed CA cert may enable
     * monitoring of encrypted network traffic.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this. Add {@link #EXTRA_NUMBER_OF_CERTIFICATES} extra to indicate the
     * number of certificates.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_MONITORING_CERT_INFO =
            "com.android.settings.MONITORING_CERT_INFO";

    
Activity Action: Show settings to allow configuration of privacy options.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of privacy options.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_PRIVACY_SETTINGS =
            "android.settings.PRIVACY_SETTINGS";

    
Activity Action: Show settings to allow configuration of VPN.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of VPN.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_VPN_SETTINGS =
            "android.settings.VPN_SETTINGS";

    
Activity Action: Show settings to allow configuration of Wi-Fi.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of Wi-Fi.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_WIFI_SETTINGS =
            "android.settings.WIFI_SETTINGS";

    
Activity Action: Show settings to allow configuration of a static IP
address for Wi-Fi.


In some cases, a matching Activity may not exist, so ensure you safeguard
against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of a static IP
     * address for Wi-Fi.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you safeguard
     * against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_WIFI_IP_SETTINGS =
            "android.settings.WIFI_IP_SETTINGS";

    
Activity Action: Show settings to allow configuration of data and view data usage.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of data and view data usage.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_DATA_USAGE_SETTINGS =
            "android.settings.DATA_USAGE_SETTINGS";

    
Activity Action: Show settings to allow configuration of Bluetooth.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of Bluetooth.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_BLUETOOTH_SETTINGS =
            "android.settings.BLUETOOTH_SETTINGS";

    
Activity Action: Show settings to allow configuration of Assist Gesture.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

@hide
/**
     * Activity Action: Show settings to allow configuration of Assist Gesture.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_ASSIST_GESTURE_SETTINGS =
            "android.settings.ASSIST_GESTURE_SETTINGS";

    
Activity Action: Show settings to enroll fingerprints, and setup PIN/Pattern/Pass if
necessary.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to enroll fingerprints, and setup PIN/Pattern/Pass if
     * necessary.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_FINGERPRINT_ENROLL =
            "android.settings.FINGERPRINT_ENROLL";

    
Activity Action: Show settings to allow configuration of cast endpoints.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of cast endpoints.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_CAST_SETTINGS =
            "android.settings.CAST_SETTINGS";

    
Activity Action: Show settings to allow configuration of date and time.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of date and time.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_DATE_SETTINGS =
            "android.settings.DATE_SETTINGS";

    
Activity Action: Show settings to allow configuration of sound and volume.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of sound and volume.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_SOUND_SETTINGS =
            "android.settings.SOUND_SETTINGS";

    
Activity Action: Show settings to allow configuration of display.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of display.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_DISPLAY_SETTINGS =
            "android.settings.DISPLAY_SETTINGS";

    
Activity Action: Show settings to allow configuration of Night display.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of Night display.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_NIGHT_DISPLAY_SETTINGS =
            "android.settings.NIGHT_DISPLAY_SETTINGS";

    
Activity Action: Show settings to allow configuration of locale.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of locale.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_LOCALE_SETTINGS =
            "android.settings.LOCALE_SETTINGS";

    
Activity Action: Show settings to configure input methods, in particular
allowing the user to enable input methods.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to configure input methods, in particular
     * allowing the user to enable input methods.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_VOICE_INPUT_SETTINGS =
            "android.settings.VOICE_INPUT_SETTINGS";

    
Activity Action: Show settings to configure input methods, in particular
allowing the user to enable input methods.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to configure input methods, in particular
     * allowing the user to enable input methods.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_INPUT_METHOD_SETTINGS =
            "android.settings.INPUT_METHOD_SETTINGS";

    
Activity Action: Show settings to enable/disable input method subtypes.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.

 To tell which input method's subtypes are displayed in the settings, add EXTRA_INPUT_METHOD_ID extra to this Intent with the input method id. If there is no extra in this Intent, subtypes from all installed input methods will be displayed in the settings. 
See Also:
/**
     * Activity Action: Show settings to enable/disable input method subtypes.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * To tell which input method's subtypes are displayed in the settings, add
     * {@link #EXTRA_INPUT_METHOD_ID} extra to this Intent with the input method id.
     * If there is no extra in this Intent, subtypes from all installed input methods
     * will be displayed in the settings.
     *
     * @see android.view.inputmethod.InputMethodInfo#getId
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_INPUT_METHOD_SUBTYPE_SETTINGS =
            "android.settings.INPUT_METHOD_SUBTYPE_SETTINGS";

    
Activity Action: Show settings to manage the user input dictionary.

 Starting with VERSION_CODES.KITKAT, it is guaranteed there will always be an appropriate implementation for this Intent action. In prior releases of the platform this was optional, so ensure you safeguard against it. 

Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to manage the user input dictionary.
     * <p>
     * Starting with {@link android.os.Build.VERSION_CODES#KITKAT},
     * it is guaranteed there will always be an appropriate implementation for this Intent action.
     * In prior releases of the platform this was optional, so ensure you safeguard against it.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_USER_DICTIONARY_SETTINGS =
            "android.settings.USER_DICTIONARY_SETTINGS";

    
Activity Action: Show settings to configure the hardware keyboard.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to configure the hardware keyboard.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_HARD_KEYBOARD_SETTINGS =
            "android.settings.HARD_KEYBOARD_SETTINGS";

    
Activity Action: Adds a word to the user dictionary.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: An extra with key word that contains the word
that should be added to the dictionary.


Output: Nothing.

@hide
/**
     * Activity Action: Adds a word to the user dictionary.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: An extra with key <code>word</code> that contains the word
     * that should be added to the dictionary.
     * <p>
     * Output: Nothing.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_USER_DICTIONARY_INSERT =
            "com.android.settings.USER_DICTIONARY_INSERT";

    
Activity Action: Show settings to allow configuration of application-related settings.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of application-related settings.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_APPLICATION_SETTINGS =
            "android.settings.APPLICATION_SETTINGS";

    
Activity Action: Show settings to allow configuration of application development-related settings. As of VERSION_CODES.JELLY_BEAN_MR1 this action is a required part of the platform. 

Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of application
     * development-related settings.  As of
     * {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1} this action is
     * a required part of the platform.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_APPLICATION_DEVELOPMENT_SETTINGS =
            "android.settings.APPLICATION_DEVELOPMENT_SETTINGS";

    
Activity Action: Show settings to allow configuration of quick launch shortcuts.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of quick launch shortcuts.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_QUICK_LAUNCH_SETTINGS =
            "android.settings.QUICK_LAUNCH_SETTINGS";

    
Activity Action: Show settings to manage installed applications.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to manage installed applications.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_MANAGE_APPLICATIONS_SETTINGS =
            "android.settings.MANAGE_APPLICATIONS_SETTINGS";

    
Activity Action: Show settings to manage all applications.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to manage all applications.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_MANAGE_ALL_APPLICATIONS_SETTINGS =
            "android.settings.MANAGE_ALL_APPLICATIONS_SETTINGS";

    
Activity Action: Show screen for controlling which apps can draw on top of other apps.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Optionally, the Intent's data URI can specify the application package name to
directly invoke the management GUI specific to the package name. For example
"package:com.my.app".


Output: Nothing.

/**
     * Activity Action: Show screen for controlling which apps can draw on top of other apps.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Optionally, the Intent's data URI can specify the application package name to
     * directly invoke the management GUI specific to the package name. For example
     * "package:com.my.app".
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_MANAGE_OVERLAY_PERMISSION =
            "android.settings.action.MANAGE_OVERLAY_PERMISSION";

    
Activity Action: Show screen for controlling which apps are allowed to write/modify
system settings.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Optionally, the Intent's data URI can specify the application package name to
directly invoke the management GUI specific to the package name. For example
"package:com.my.app".


Output: Nothing.

/**
     * Activity Action: Show screen for controlling which apps are allowed to write/modify
     * system settings.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Optionally, the Intent's data URI can specify the application package name to
     * directly invoke the management GUI specific to the package name. For example
     * "package:com.my.app".
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_MANAGE_WRITE_SETTINGS =
            "android.settings.action.MANAGE_WRITE_SETTINGS";

    
Activity Action: Show screen of details about a particular application.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: The Intent's data URI specifies the application package name
to be shown, with the "package" scheme.  That is "package:com.my.app".


Output: Nothing.

/**
     * Activity Action: Show screen of details about a particular application.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: The Intent's data URI specifies the application package name
     * to be shown, with the "package" scheme.  That is "package:com.my.app".
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_APPLICATION_DETAILS_SETTINGS =
            "android.settings.APPLICATION_DETAILS_SETTINGS";

    
Activity Action: Show the "Open by Default" page in a particular application's details page.


In some cases, a matching Activity may not exist, so ensure you safeguard against this.


Input: The Intent's data URI specifies the application package name
to be shown, with the "package" scheme. That is "package:com.my.app".


Output: Nothing.

@hide
/**
     * Activity Action: Show the "Open by Default" page in a particular application's details page.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
     * <p>
     * Input: The Intent's data URI specifies the application package name
     * to be shown, with the "package" scheme. That is "package:com.my.app".
     * <p>
     * Output: Nothing.
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_APPLICATION_DETAILS_SETTINGS_OPEN_BY_DEFAULT_PAGE =
            "android.settings.APPLICATION_DETAILS_SETTINGS_OPEN_BY_DEFAULT_PAGE";

    
Activity Action: Show list of applications that have been running
foreground services (to the user "running in the background").


Input: Extras "packages" is a string array of package names.


Output: Nothing.

@hide
/**
     * Activity Action: Show list of applications that have been running
     * foreground services (to the user "running in the background").
     * <p>
     * Input: Extras "packages" is a string array of package names.
     * <p>
     * Output: Nothing.
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_FOREGROUND_SERVICES_SETTINGS =
            "android.settings.FOREGROUND_SERVICES_SETTINGS";

    
Activity Action: Show screen for controlling which apps can ignore battery optimizations.


Input: Nothing.


Output: Nothing.

 You can use 
PowerManager.isIgnoringBatteryOptimizations() to determine if an application is already ignoring optimizations. You can use ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS to ask the user to put you on this list. 
/**
     * Activity Action: Show screen for controlling which apps can ignore battery optimizations.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     * <p>
     * You can use {@link android.os.PowerManager#isIgnoringBatteryOptimizations
     * PowerManager.isIgnoringBatteryOptimizations()} to determine if an application is
     * already ignoring optimizations.  You can use
     * {@link #ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS} to ask the user to put you
     * on this list.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS =
            "android.settings.IGNORE_BATTERY_OPTIMIZATION_SETTINGS";

    
Activity Action: Ask the user to allow an app to ignore battery optimizations (that is, put them on the whitelist of apps shown by ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS). For an app to use this, it also must hold the REQUEST_IGNORE_BATTERY_OPTIMIZATIONS.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS permission. 
Note: most applications should not use this; there are many facilities
provided by the platform for applications to operate correctly in the various power
saving modes.  This is only for unusual applications that need to deeply control their own
execution, at the potential expense of the user's battery life.  Note that these applications
greatly run the risk of showing to the user as high power consumers on their device.



Input: The Intent's data URI must specify the application package name
to be shown, with the "package" scheme.  That is "package:com.my.app".


Output: Nothing.

 You can use 
PowerManager.isIgnoringBatteryOptimizations() to determine if an application is already ignoring optimizations. 
/**
     * Activity Action: Ask the user to allow an app to ignore battery optimizations (that is,
     * put them on the whitelist of apps shown by
     * {@link #ACTION_IGNORE_BATTERY_OPTIMIZATION_SETTINGS}).  For an app to use this, it also
     * must hold the {@link android.Manifest.permission#REQUEST_IGNORE_BATTERY_OPTIMIZATIONS}
     * permission.
     * <p><b>Note:</b> most applications should <em>not</em> use this; there are many facilities
     * provided by the platform for applications to operate correctly in the various power
     * saving modes.  This is only for unusual applications that need to deeply control their own
     * execution, at the potential expense of the user's battery life.  Note that these applications
     * greatly run the risk of showing to the user as high power consumers on their device.</p>
     * <p>
     * Input: The Intent's data URI must specify the application package name
     * to be shown, with the "package" scheme.  That is "package:com.my.app".
     * <p>
     * Output: Nothing.
     * <p>
     * You can use {@link android.os.PowerManager#isIgnoringBatteryOptimizations
     * PowerManager.isIgnoringBatteryOptimizations()} to determine if an application is
     * already ignoring optimizations.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS =
            "android.settings.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS";

    
Activity Action: Show screen for controlling background data
restrictions for a particular application.


Input: Intent's data URI set with an application name, using the
"package" schema (like "package:com.my.app").


Output: Nothing.

 Applications can also use 
ConnectivityManager#getRestrictBackgroundStatus() to determine the status of the background data restrictions for them. 

In some cases, a matching Activity may not exist, so ensure you
safeguard against this.

/**
     * Activity Action: Show screen for controlling background data
     * restrictions for a particular application.
     * <p>
     * Input: Intent's data URI set with an application name, using the
     * "package" schema (like "package:com.my.app").
     *
     * <p>
     * Output: Nothing.
     * <p>
     * Applications can also use {@link android.net.ConnectivityManager#getRestrictBackgroundStatus
     * ConnectivityManager#getRestrictBackgroundStatus()} to determine the
     * status of the background data restrictions for them.
     *
     * <p class="note">
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_IGNORE_BACKGROUND_DATA_RESTRICTIONS_SETTINGS =
            "android.settings.IGNORE_BACKGROUND_DATA_RESTRICTIONS_SETTINGS";

    
@hide
Activity Action: Show the "app ops" settings screen.


Input: Nothing.


Output: Nothing.
/**
     * @hide
     * Activity Action: Show the "app ops" settings screen.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_APP_OPS_SETTINGS =
            "android.settings.APP_OPS_SETTINGS";

    
Activity Action: Show settings for system update functionality.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

@hide
/**
     * Activity Action: Show settings for system update functionality.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_SYSTEM_UPDATE_SETTINGS =
            "android.settings.SYSTEM_UPDATE_SETTINGS";

    
Activity Action: Show settings for managed profile settings.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

@hide
/**
     * Activity Action: Show settings for managed profile settings.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_MANAGED_PROFILE_SETTINGS =
            "android.settings.MANAGED_PROFILE_SETTINGS";

    
Activity Action: Show settings to allow configuration of sync settings.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.

 The account types available to add via the add account button may be restricted by adding an EXTRA_AUTHORITIES extra to this Intent with one or more syncable content provider's authorities. Only account types which can sync with that content provider will be offered to the user. 

Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings to allow configuration of sync settings.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * The account types available to add via the add account button may be restricted by adding an
     * {@link #EXTRA_AUTHORITIES} extra to this Intent with one or more syncable content provider's
     * authorities. Only account types which can sync with that content provider will be offered to
     * the user.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_SYNC_SETTINGS =
            "android.settings.SYNC_SETTINGS";

    
Activity Action: Show add account screen for creating a new account.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.

 The account types available to add may be restricted by adding an EXTRA_AUTHORITIES extra to the Intent with one or more syncable content provider's authorities. Only account types which can sync with that content provider will be offered to the user. 
 Account types can also be filtered by adding an EXTRA_ACCOUNT_TYPES extra to the Intent with one or more account types. 

Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show add account screen for creating a new account.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * The account types available to add may be restricted by adding an {@link #EXTRA_AUTHORITIES}
     * extra to the Intent with one or more syncable content provider's authorities.  Only account
     * types which can sync with that content provider will be offered to the user.
     * <p>
     * Account types can also be filtered by adding an {@link #EXTRA_ACCOUNT_TYPES} extra to the
     * Intent with one or more account types.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_ADD_ACCOUNT =
            "android.settings.ADD_ACCOUNT_SETTINGS";

    
Activity Action: Show settings for selecting the network operator.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.

 The subscription ID of the subscription for which available network operators should be displayed may be optionally specified with EXTRA_SUB_ID. 

Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings for selecting the network operator.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * The subscription ID of the subscription for which available network operators should be
     * displayed may be optionally specified with {@link #EXTRA_SUB_ID}.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_NETWORK_OPERATOR_SETTINGS =
            "android.settings.NETWORK_OPERATOR_SETTINGS";

    
Activity Action: Show settings for selection of 2G/3G.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings for selection of 2G/3G.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_DATA_ROAMING_SETTINGS =
            "android.settings.DATA_ROAMING_SETTINGS";

    
Activity Action: Show settings for internal storage.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings for internal storage.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_INTERNAL_STORAGE_SETTINGS =
            "android.settings.INTERNAL_STORAGE_SETTINGS";
    
Activity Action: Show settings for memory card storage.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings for memory card storage.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_MEMORY_CARD_SETTINGS =
            "android.settings.MEMORY_CARD_SETTINGS";

    
Activity Action: Show settings for global search.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing

/**
     * Activity Action: Show settings for global search.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_SEARCH_SETTINGS =
        "android.search.action.SEARCH_SETTINGS";

    
Activity Action: Show general device information settings (serial
number, software version, phone number, etc.).


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing

/**
     * Activity Action: Show general device information settings (serial
     * number, software version, phone number, etc.).
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_DEVICE_INFO_SETTINGS =
        "android.settings.DEVICE_INFO_SETTINGS";

    
Activity Action: Show NFC settings.


This shows UI that allows NFC to be turned on or off.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing

See Also:
  • isEnabled.isEnabled()
/**
     * Activity Action: Show NFC settings.
     * <p>
     * This shows UI that allows NFC to be turned on or off.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing
     * @see android.nfc.NfcAdapter#isEnabled()
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_NFC_SETTINGS = "android.settings.NFC_SETTINGS";

    
Activity Action: Show NFC Sharing settings.


This shows UI that allows NDEF Push (Android Beam) to be turned on or
off.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing

See Also:
  • isNdefPushEnabled.isNdefPushEnabled()
/**
     * Activity Action: Show NFC Sharing settings.
     * <p>
     * This shows UI that allows NDEF Push (Android Beam) to be turned on or
     * off.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing
     * @see android.nfc.NfcAdapter#isNdefPushEnabled()
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_NFCSHARING_SETTINGS =
        "android.settings.NFCSHARING_SETTINGS";

    
Activity Action: Show NFC Tap & Pay settings


This shows UI that allows the user to configure Tap&Pay
settings.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing

/**
     * Activity Action: Show NFC Tap & Pay settings
     * <p>
     * This shows UI that allows the user to configure Tap&Pay
     * settings.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_NFC_PAYMENT_SETTINGS =
        "android.settings.NFC_PAYMENT_SETTINGS";

    
Activity Action: Show Daydream settings.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

See Also:
  • DreamService
/**
     * Activity Action: Show Daydream settings.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     * @see android.service.dreams.DreamService
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_DREAM_SETTINGS = "android.settings.DREAM_SETTINGS";

    
Activity Action: Show Notification listener settings.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

See Also:
  • NotificationListenerService
/**
     * Activity Action: Show Notification listener settings.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     * @see android.service.notification.NotificationListenerService
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_NOTIFICATION_LISTENER_SETTINGS
            = "android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS";

    
Activity Action: Show Do Not Disturb access settings.

 Users can grant and deny access to Do Not Disturb configuration from here. See NotificationManager.isNotificationPolicyAccessGranted() for more details. 

Input: Nothing.


Output: Nothing.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.

/**
     * Activity Action: Show Do Not Disturb access settings.
     * <p>
     * Users can grant and deny access to Do Not Disturb configuration from here.
     * See {@link android.app.NotificationManager#isNotificationPolicyAccessGranted()} for more
     * details.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     *
     * <p class="note">
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_NOTIFICATION_POLICY_ACCESS_SETTINGS
            = "android.settings.NOTIFICATION_POLICY_ACCESS_SETTINGS";

    
@hide
/**
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_CONDITION_PROVIDER_SETTINGS
            = "android.settings.ACTION_CONDITION_PROVIDER_SETTINGS";

    
Activity Action: Show settings for video captioning.


In some cases, a matching Activity may not exist, so ensure you safeguard
against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show settings for video captioning.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you safeguard
     * against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_CAPTIONING_SETTINGS = "android.settings.CAPTIONING_SETTINGS";

    
Activity Action: Show the top level print settings.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show the top level print settings.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_PRINT_SETTINGS =
            "android.settings.ACTION_PRINT_SETTINGS";

    
Activity Action: Show Zen Mode configuration settings.

@hide
/**
     * Activity Action: Show Zen Mode configuration settings.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_ZEN_MODE_SETTINGS = "android.settings.ZEN_MODE_SETTINGS";

    
Activity Action: Show Zen Mode visual effects configuration settings.

@hide
/**
     * Activity Action: Show Zen Mode visual effects configuration settings.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ZEN_MODE_BLOCKED_EFFECTS_SETTINGS =
            "android.settings.ZEN_MODE_BLOCKED_EFFECTS_SETTINGS";

    
Activity Action: Show Zen Mode onboarding activity.

@hide
/**
     * Activity Action: Show Zen Mode onboarding activity.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ZEN_MODE_ONBOARDING = "android.settings.ZEN_MODE_ONBOARDING";

    
Activity Action: Show Zen Mode (aka Do Not Disturb) priority configuration settings.

/**
     * Activity Action: Show Zen Mode (aka Do Not Disturb) priority configuration settings.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_ZEN_MODE_PRIORITY_SETTINGS
            = "android.settings.ZEN_MODE_PRIORITY_SETTINGS";

    
Activity Action: Show Zen Mode automation configuration settings.

@hide
/**
     * Activity Action: Show Zen Mode automation configuration settings.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_ZEN_MODE_AUTOMATION_SETTINGS
            = "android.settings.ZEN_MODE_AUTOMATION_SETTINGS";

    
Activity Action: Modify do not disturb mode settings.


In some cases, a matching Activity may not exist, so ensure you safeguard against this.

 This intent MUST be started using 
startVoiceActivity. 
 Note: The Activity implementing this intent MUST verify that isVoiceInteraction. returns true before modifying the setting. 
 Input: The optional EXTRA_DO_NOT_DISTURB_MODE_MINUTES extra can be used to indicate how long the user wishes to avoid interruptions for. The optional EXTRA_DO_NOT_DISTURB_MODE_ENABLED extra can be to indicate if the user is enabling or disabling do not disturb mode. If either extra is not included, the user maybe asked to provide the value. 

Output: Nothing.

/**
     * Activity Action: Modify do not disturb mode settings.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
     * <p>
     * This intent MUST be started using
     * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
     * startVoiceActivity}.
     * <p>
     * Note: The Activity implementing this intent MUST verify that
     * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction}.
     * returns true before modifying the setting.
     * <p>
     * Input: The optional {@link #EXTRA_DO_NOT_DISTURB_MODE_MINUTES} extra can be used to indicate
     * how long the user wishes to avoid interruptions for. The optional
     * {@link #EXTRA_DO_NOT_DISTURB_MODE_ENABLED} extra can be to indicate if the user is
     * enabling or disabling do not disturb mode. If either extra is not included, the
     * user maybe asked to provide the value.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE =
            "android.settings.VOICE_CONTROL_DO_NOT_DISTURB_MODE";

    
Activity Action: Show Zen Mode schedule rule configuration settings.

@hide
/**
     * Activity Action: Show Zen Mode schedule rule configuration settings.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_ZEN_MODE_SCHEDULE_RULE_SETTINGS
            = "android.settings.ZEN_MODE_SCHEDULE_RULE_SETTINGS";

    
Activity Action: Show Zen Mode event rule configuration settings.

@hide
/**
     * Activity Action: Show Zen Mode event rule configuration settings.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_ZEN_MODE_EVENT_RULE_SETTINGS
            = "android.settings.ZEN_MODE_EVENT_RULE_SETTINGS";

    
Activity Action: Show Zen Mode external rule configuration settings.

@hide
/**
     * Activity Action: Show Zen Mode external rule configuration settings.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_ZEN_MODE_EXTERNAL_RULE_SETTINGS
            = "android.settings.ZEN_MODE_EXTERNAL_RULE_SETTINGS";

    
Activity Action: Show the regulatory information screen for the device.


In some cases, a matching Activity may not exist, so ensure you safeguard
against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show the regulatory information screen for the device.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you safeguard
     * against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String
            ACTION_SHOW_REGULATORY_INFO = "android.settings.SHOW_REGULATORY_INFO";

    
Activity Action: Show Device Name Settings.


In some cases, a matching Activity may not exist, so ensure you safeguard
against this.

@hide
/**
     * Activity Action: Show Device Name Settings.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you safeguard
     * against this.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String DEVICE_NAME_SETTINGS = "android.settings.DEVICE_NAME";

    
Activity Action: Show pairing settings.


In some cases, a matching Activity may not exist, so ensure you safeguard
against this.

@hide
/**
     * Activity Action: Show pairing settings.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you safeguard
     * against this.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_PAIRING_SETTINGS = "android.settings.PAIRING_SETTINGS";

    
Activity Action: Show battery saver settings.


In some cases, a matching Activity may not exist, so ensure you safeguard
against this.

/**
     * Activity Action: Show battery saver settings.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you safeguard
     * against this.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_BATTERY_SAVER_SETTINGS
            = "android.settings.BATTERY_SAVER_SETTINGS";

    
Activity Action: Modify Battery Saver mode setting using a voice command.


In some cases, a matching Activity may not exist, so ensure you safeguard against this.

 This intent MUST be started using 
startVoiceActivity. 
 Note: The activity implementing this intent MUST verify that isVoiceInteraction returns true before modifying the setting. 
 Input: To tell which state batter saver mode should be set to, add the EXTRA_BATTERY_SAVER_MODE_ENABLED extra to this Intent with the state specified. If the extra is not included, no changes will be made. 

Output: Nothing.

/**
     * Activity Action: Modify Battery Saver mode setting using a voice command.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you safeguard against this.
     * <p>
     * This intent MUST be started using
     * {@link android.service.voice.VoiceInteractionSession#startVoiceActivity
     * startVoiceActivity}.
     * <p>
     * Note: The activity implementing this intent MUST verify that
     * {@link android.app.Activity#isVoiceInteraction isVoiceInteraction} returns true before
     * modifying the setting.
     * <p>
     * Input: To tell which state batter saver mode should be set to, add the
     * {@link #EXTRA_BATTERY_SAVER_MODE_ENABLED} extra to this Intent with the state specified.
     * If the extra is not included, no changes will be made.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_VOICE_CONTROL_BATTERY_SAVER_MODE =
            "android.settings.VOICE_CONTROL_BATTERY_SAVER_MODE";

    
Activity Action: Show Home selection settings. If there are multiple activities that can satisfy the Intent.CATEGORY_HOME intent, this screen allows you to pick your preferred activity. 
/**
     * Activity Action: Show Home selection settings. If there are multiple activities
     * that can satisfy the {@link Intent#CATEGORY_HOME} intent, this screen allows you
     * to pick your preferred activity.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_HOME_SETTINGS
            = "android.settings.HOME_SETTINGS";

    
Activity Action: Show Default apps settings.


In some cases, a matching Activity may not exist, so ensure you
safeguard against this.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Show Default apps settings.
     * <p>
     * In some cases, a matching Activity may not exist, so ensure you
     * safeguard against this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_MANAGE_DEFAULT_APPS_SETTINGS
            = "android.settings.MANAGE_DEFAULT_APPS_SETTINGS";

    
Activity Action: Show notification settings.

@hide
/**
     * Activity Action: Show notification settings.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_NOTIFICATION_SETTINGS
            = "android.settings.NOTIFICATION_SETTINGS";

    
Activity Action: Show app listing settings, filtered by those that send notifications.

@hide
/**
     * Activity Action: Show app listing settings, filtered by those that send notifications.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_ALL_APPS_NOTIFICATION_SETTINGS =
            "android.settings.ALL_APPS_NOTIFICATION_SETTINGS";

    
Activity Action: Show notification settings for a single app.

 Input: EXTRA_APP_PACKAGE, the package to display. 

Output: Nothing.

/**
     * Activity Action: Show notification settings for a single app.
     * <p>
     *     Input: {@link #EXTRA_APP_PACKAGE}, the package to display.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_APP_NOTIFICATION_SETTINGS
            = "android.settings.APP_NOTIFICATION_SETTINGS";

    
Activity Action: Show notification settings for a single NotificationChannel. 
 Input: EXTRA_APP_PACKAGE, the package containing the channel to display. Input: EXTRA_CHANNEL_ID, the id of the channel to display. 

Output: Nothing.

/**
     * Activity Action: Show notification settings for a single {@link NotificationChannel}.
     * <p>
     *     Input: {@link #EXTRA_APP_PACKAGE}, the package containing the channel to display.
     *     Input: {@link #EXTRA_CHANNEL_ID}, the id of the channel to display.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_CHANNEL_NOTIFICATION_SETTINGS
            = "android.settings.CHANNEL_NOTIFICATION_SETTINGS";

    
Activity Extra: The package owner of the notification channel settings to display.

 This must be passed as an extra field to the ACTION_CHANNEL_NOTIFICATION_SETTINGS. 
/**
     * Activity Extra: The package owner of the notification channel settings to display.
     * <p>
     * This must be passed as an extra field to the {@link #ACTION_CHANNEL_NOTIFICATION_SETTINGS}.
     */
    public static final String EXTRA_APP_PACKAGE = "android.provider.extra.APP_PACKAGE";

    
Activity Extra: The NotificationChannel.getId() of the notification channel settings to display. 
 This must be passed as an extra field to the ACTION_CHANNEL_NOTIFICATION_SETTINGS. 
/**
     * Activity Extra: The {@link NotificationChannel#getId()} of the notification channel settings
     * to display.
     * <p>
     * This must be passed as an extra field to the {@link #ACTION_CHANNEL_NOTIFICATION_SETTINGS}.
     */
    public static final String EXTRA_CHANNEL_ID = "android.provider.extra.CHANNEL_ID";

    
Activity Action: Show notification redaction settings.

@hide
/**
     * Activity Action: Show notification redaction settings.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_APP_NOTIFICATION_REDACTION
            = "android.settings.ACTION_APP_NOTIFICATION_REDACTION";

    
@hide
/** @hide */ public static final String EXTRA_APP_UID = "app_uid";

    
Activity Action: Show a dialog with disabled by policy message.

 If an user action is disabled by policy, this dialog can be triggered to let
the user know about this.


Input: Nothing.


Output: Nothing.

@hide
/**
     * Activity Action: Show a dialog with disabled by policy message.
     * <p> If an user action is disabled by policy, this dialog can be triggered to let
     * the user know about this.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_SHOW_ADMIN_SUPPORT_DETAILS
            = "android.settings.SHOW_ADMIN_SUPPORT_DETAILS";

    
Activity Action: Show a dialog for remote bugreport flow.


Input: Nothing.


Output: Nothing.

@hide
/**
     * Activity Action: Show a dialog for remote bugreport flow.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_SHOW_REMOTE_BUGREPORT_DIALOG
            = "android.settings.SHOW_REMOTE_BUGREPORT_DIALOG";

    
Activity Action: Show VR listener settings.


Input: Nothing.


Output: Nothing.

See Also:
  • VrListenerService
/**
     * Activity Action: Show VR listener settings.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     *
     * @see android.service.vr.VrListenerService
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_VR_LISTENER_SETTINGS
            = "android.settings.VR_LISTENER_SETTINGS";

    
Activity Action: Show Picture-in-picture settings.


Input: Nothing.


Output: Nothing.

@hide
/**
     * Activity Action: Show Picture-in-picture settings.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_PICTURE_IN_PICTURE_SETTINGS
            = "android.settings.PICTURE_IN_PICTURE_SETTINGS";

    
Activity Action: Show Storage Manager settings.


Input: Nothing.


Output: Nothing.

@hide
/**
     * Activity Action: Show Storage Manager settings.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     *
     * @hide
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_STORAGE_MANAGER_SETTINGS
            = "android.settings.STORAGE_MANAGER_SETTINGS";

    
Activity Action: Allows user to select current webview implementation.


Input: Nothing.


Output: Nothing.

/**
     * Activity Action: Allows user to select current webview implementation.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_WEBVIEW_SETTINGS = "android.settings.WEBVIEW_SETTINGS";

    
Activity Action: Show enterprise privacy section.


Input: Nothing.


Output: Nothing.

@hide
/**
     * Activity Action: Show enterprise privacy section.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     * @hide
     */
    @SystemApi
    @TestApi
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_ENTERPRISE_PRIVACY_SETTINGS
            = "android.settings.ENTERPRISE_PRIVACY_SETTINGS";

    
Activity Action: Show screen that let user select its Autofill Service.


Input: Intent's data URI set with an application name, using the
"package" schema (like "package:com.my.app").

 Output: Activity.RESULT_OK if user selected an Autofill Service belonging to the caller package. 

NOTE:  Applications should call AutofillManager.hasEnabledAutofillServices() and AutofillManager.isAutofillSupported(), and only use this action to start an activity if they return false and true respectively. 
/**
     * Activity Action: Show screen that let user select its Autofill Service.
     * <p>
     * Input: Intent's data URI set with an application name, using the
     * "package" schema (like "package:com.my.app").
     *
     * <p>
     * Output: {@link android.app.Activity#RESULT_OK} if user selected an Autofill Service belonging
     * to the caller package.
     *
     * <p>
     * <b>NOTE: </b> Applications should call
     * {@link android.view.autofill.AutofillManager#hasEnabledAutofillServices()} and
     * {@link android.view.autofill.AutofillManager#isAutofillSupported()}, and only use this action
     * to start an activity if they return {@code false} and {@code true} respectively.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_REQUEST_SET_AUTOFILL_SERVICE =
            "android.settings.REQUEST_SET_AUTOFILL_SERVICE";

    
Activity Action: Show screen for controlling which apps have access on volume directories.


Input: Nothing.


Output: Nothing.

 Applications typically use this action to ask the user to revert the "Do not ask again" status of directory access requests made by StorageVolume.createAccessIntent(String). 
/**
     * Activity Action: Show screen for controlling which apps have access on volume directories.
     * <p>
     * Input: Nothing.
     * <p>
     * Output: Nothing.
     * <p>
     * Applications typically use this action to ask the user to revert the "Do not ask again"
     * status of directory access requests made by
     * {@link android.os.storage.StorageVolume#createAccessIntent(String)}.
     */
    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
    public static final String ACTION_STORAGE_VOLUME_ACCESS_SETTINGS =
            "android.settings.STORAGE_VOLUME_ACCESS_SETTINGS";

    // End of Intent actions for Settings

    
@hide- Private call() method on SettingsProvider to read from 'system' table.
/**
     * @hide - Private call() method on SettingsProvider to read from 'system' table.
     */
    public static final String CALL_METHOD_GET_SYSTEM = "GET_system";

    
@hide- Private call() method on SettingsProvider to read from 'secure' table.
/**
     * @hide - Private call() method on SettingsProvider to read from 'secure' table.
     */
    public static final String CALL_METHOD_GET_SECURE = "GET_secure";

    
@hide- Private call() method on SettingsProvider to read from 'global' table.
/**
     * @hide - Private call() method on SettingsProvider to read from 'global' table.
     */
    public static final String CALL_METHOD_GET_GLOBAL = "GET_global";

    
See Also:
@hide- Specifies that the caller of the fast-path call()-based flow tracks
the settings generation in order to cache values locally. If this key is
mapped to a null string extra in the request bundle, the response bundle will contain the same key mapped to a parcelable extra which would be an MemoryIntArray. The response will also contain an integer mapped to the CALL_METHOD_GENERATION_INDEX_KEY which is the index in the array clients should use to lookup the generation. For efficiency the caller should request the generation tracking memory array only if it doesn't already have it.
/**
     * @hide - Specifies that the caller of the fast-path call()-based flow tracks
     * the settings generation in order to cache values locally. If this key is
     * mapped to a <code>null</code> string extra in the request bundle, the response
     * bundle will contain the same key mapped to a parcelable extra which would be
     * an {@link android.util.MemoryIntArray}. The response will also contain an
     * integer mapped to the {@link #CALL_METHOD_GENERATION_INDEX_KEY} which is the
     * index in the array clients should use to lookup the generation. For efficiency
     * the caller should request the generation tracking memory array only if it
     * doesn't already have it.
     *
     * @see #CALL_METHOD_GENERATION_INDEX_KEY
     */
    public static final String CALL_METHOD_TRACK_GENERATION_KEY = "_track_generation";

    
See Also:
@hideKey with the location in the MemoryIntArray where to look up the generation id of the backing table. The value is an integer.
/**
     * @hide Key with the location in the {@link android.util.MemoryIntArray} where
     * to look up the generation id of the backing table. The value is an integer.
     *
     * @see #CALL_METHOD_TRACK_GENERATION_KEY
     */
    public static final String CALL_METHOD_GENERATION_INDEX_KEY = "_generation_index";

    
See Also:
@hideKey with the settings table generation. The value is an integer.
/**
     * @hide Key with the settings table generation. The value is an integer.
     *
     * @see #CALL_METHOD_TRACK_GENERATION_KEY
     */
    public static final String CALL_METHOD_GENERATION_KEY = "_generation";

    
@hide- User handle argument extra to the fast-path call()-based requests
/**
     * @hide - User handle argument extra to the fast-path call()-based requests
     */
    public static final String CALL_METHOD_USER_KEY = "_user";

    
@hide- Boolean argument extra to the fast-path call()-based requests
/**
     * @hide - Boolean argument extra to the fast-path call()-based requests
     */
    public static final String CALL_METHOD_MAKE_DEFAULT_KEY = "_make_default";

    
@hide- User handle argument extra to the fast-path call()-based requests
/**
     * @hide - User handle argument extra to the fast-path call()-based requests
     */
    public static final String CALL_METHOD_RESET_MODE_KEY = "_reset_mode";

    
@hide- String argument extra to the fast-path call()-based requests
/**
     * @hide - String argument extra to the fast-path call()-based requests
     */
    public static final String CALL_METHOD_TAG_KEY = "_tag";

    
@hide- Private call() method to write to 'system' table
/** @hide - Private call() method to write to 'system' table */
    public static final String CALL_METHOD_PUT_SYSTEM = "PUT_system";

    
@hide- Private call() method to write to 'secure' table
/** @hide - Private call() method to write to 'secure' table */
    public static final String CALL_METHOD_PUT_SECURE = "PUT_secure";

    
@hide- Private call() method to write to 'global' table
/** @hide - Private call() method to write to 'global' table */
    public static final String CALL_METHOD_PUT_GLOBAL= "PUT_global";

    
@hide- Private call() method to reset to defaults the 'global' table
/** @hide - Private call() method to reset to defaults the 'global' table */
    public static final String CALL_METHOD_RESET_GLOBAL = "RESET_global";

    
@hide- Private call() method to reset to defaults the 'secure' table
/** @hide - Private call() method to reset to defaults the 'secure' table */
    public static final String CALL_METHOD_RESET_SECURE = "RESET_secure";

    
Activity Extra: Limit available options in launched activity based on the given authority.


This can be passed as an extra field in an Activity Intent with one or more syncable content
provider's authorities as a String[]. This field is used by some intents to alter the
behavior of the called activity.

 Example: The ACTION_ADD_ACCOUNT intent restricts the account types available based on the authority given. 
/**
     * Activity Extra: Limit available options in launched activity based on the given authority.
     * <p>
     * This can be passed as an extra field in an Activity Intent with one or more syncable content
     * provider's authorities as a String[]. This field is used by some intents to alter the
     * behavior of the called activity.
     * <p>
     * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types available based
     * on the authority given.
     */
    public static final String EXTRA_AUTHORITIES = "authorities";

    
Activity Extra: Limit available options in launched activity based on the given account
types.


This can be passed as an extra field in an Activity Intent with one or more account types
as a String[]. This field is used by some intents to alter the behavior of the called
activity.

 Example: The ACTION_ADD_ACCOUNT intent restricts the account types to the specified list. 
/**
     * Activity Extra: Limit available options in launched activity based on the given account
     * types.
     * <p>
     * This can be passed as an extra field in an Activity Intent with one or more account types
     * as a String[]. This field is used by some intents to alter the behavior of the called
     * activity.
     * <p>
     * Example: The {@link #ACTION_ADD_ACCOUNT} intent restricts the account types to the specified
     * list.
     */
    public static final String EXTRA_ACCOUNT_TYPES = "account_types";

    public static final String EXTRA_INPUT_METHOD_ID = "input_method_id";

    
Activity Extra: The device identifier to act upon.


This can be passed as an extra field in an Activity Intent with a single
InputDeviceIdentifier. This field is used by some activities to jump straight into the
settings for the given device.

 Example: The ACTION_INPUT_METHOD_SETTINGS intent opens the keyboard layout dialog for the given device. 
@hide
/**
     * Activity Extra: The device identifier to act upon.
     * <p>
     * This can be passed as an extra field in an Activity Intent with a single
     * InputDeviceIdentifier. This field is used by some activities to jump straight into the
     * settings for the given device.
     * <p>
     * Example: The {@link #ACTION_INPUT_METHOD_SETTINGS} intent opens the keyboard layout
     * dialog for the given device.
     * @hide
     */
    public static final String EXTRA_INPUT_DEVICE_IDENTIFIER = "input_device_identifier";

    
Activity Extra: Enable or disable Airplane Mode.

 This can be passed as an extra field to the ACTION_VOICE_CONTROL_AIRPLANE_MODE intent as a boolean to indicate if it should be enabled. 
/**
     * Activity Extra: Enable or disable Airplane Mode.
     * <p>
     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_AIRPLANE_MODE}
     * intent as a boolean to indicate if it should be enabled.
     */
    public static final String EXTRA_AIRPLANE_MODE_ENABLED = "airplane_mode_enabled";

    
Activity Extra: Enable or disable Battery saver mode.

 This can be passed as an extra field to the ACTION_VOICE_CONTROL_BATTERY_SAVER_MODE intent as a boolean to indicate if it should be enabled. 
/**
     * Activity Extra: Enable or disable Battery saver mode.
     * <p>
     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_BATTERY_SAVER_MODE}
     * intent as a boolean to indicate if it should be enabled.
     */
    public static final String EXTRA_BATTERY_SAVER_MODE_ENABLED =
            "android.settings.extra.battery_saver_mode_enabled";

    
Activity Extra: Enable or disable Do Not Disturb mode.

 This can be passed as an extra field to the ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE intent as a boolean to indicate if it should be enabled. 
/**
     * Activity Extra: Enable or disable Do Not Disturb mode.
     * <p>
     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE}
     * intent as a boolean to indicate if it should be enabled.
     */
    public static final String EXTRA_DO_NOT_DISTURB_MODE_ENABLED =
            "android.settings.extra.do_not_disturb_mode_enabled";

    
Activity Extra: How many minutes to enable do not disturb mode for.

 This can be passed as an extra field to the ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE intent to indicate how long do not disturb mode should be enabled for. 
/**
     * Activity Extra: How many minutes to enable do not disturb mode for.
     * <p>
     * This can be passed as an extra field to the {@link #ACTION_VOICE_CONTROL_DO_NOT_DISTURB_MODE}
     * intent to indicate how long do not disturb mode should be enabled for.
     */
    public static final String EXTRA_DO_NOT_DISTURB_MODE_MINUTES =
            "android.settings.extra.do_not_disturb_mode_minutes";

    
Reset mode: reset to defaults only settings changed by the
calling package. If there is a default set the setting
will be set to it, otherwise the setting will be deleted.
This is the only type of reset available to non-system clients.

@hide
/**
     * Reset mode: reset to defaults only settings changed by the
     * calling package. If there is a default set the setting
     * will be set to it, otherwise the setting will be deleted.
     * This is the only type of reset available to non-system clients.
     * @hide
     */
    public static final int RESET_MODE_PACKAGE_DEFAULTS = 1;

    
Reset mode: reset all settings set by untrusted packages, which is
packages that aren't a part of the system, to the current defaults.
If there is a default set the setting will be set to it, otherwise
the setting will be deleted. This mode is only available to the system.

@hide
/**
     * Reset mode: reset all settings set by untrusted packages, which is
     * packages that aren't a part of the system, to the current defaults.
     * If there is a default set the setting will be set to it, otherwise
     * the setting will be deleted. This mode is only available to the system.
     * @hide
     */
    public static final int RESET_MODE_UNTRUSTED_DEFAULTS = 2;

    
Reset mode: delete all settings set by untrusted packages, which is
packages that aren't a part of the system. If a setting is set by an
untrusted package it will be deleted if its default is not provided
by the system, otherwise the setting will be set to its default.
This mode is only available to the system.

@hide
/**
     * Reset mode: delete all settings set by untrusted packages, which is
     * packages that aren't a part of the system. If a setting is set by an
     * untrusted package it will be deleted if its default is not provided
     * by the system, otherwise the setting will be set to its default.
     * This mode is only available to the system.
     * @hide
     */
    public static final int RESET_MODE_UNTRUSTED_CHANGES = 3;

    
Reset mode: reset all settings to defaults specified by trusted
packages, which is packages that are a part of the system, and
delete all settings set by untrusted packages. If a setting has
a default set by a system package it will be set to the default,
otherwise the setting will be deleted. This mode is only available
to the system.

@hide
/**
     * Reset mode: reset all settings to defaults specified by trusted
     * packages, which is packages that are a part of the system, and
     * delete all settings set by untrusted packages. If a setting has
     * a default set by a system package it will be set to the default,
     * otherwise the setting will be deleted. This mode is only available
     * to the system.
     * @hide
     */
    public static final int RESET_MODE_TRUSTED_DEFAULTS = 4;

    
@hide
/** @hide */
    @Retention(RetentionPolicy.SOURCE)
    @IntDef(prefix = { "RESET_MODE_" }, value = {
            RESET_MODE_PACKAGE_DEFAULTS,
            RESET_MODE_UNTRUSTED_DEFAULTS,
            RESET_MODE_UNTRUSTED_CHANGES,
            RESET_MODE_TRUSTED_DEFAULTS
    })
    public @interface ResetMode{}


    
User has not started setup personalization.

@hide
/**
     * User has not started setup personalization.
     * @hide
     */
    public static final int USER_SETUP_PERSONALIZATION_NOT_STARTED = 0;

    
User has not yet completed setup personalization.

@hide
/**
     * User has not yet completed setup personalization.
     * @hide
     */
    public static final int USER_SETUP_PERSONALIZATION_STARTED = 1;

    
User has snoozed personalization and will complete it later.

@hide
/**
     * User has snoozed personalization and will complete it later.
     * @hide
     */
    public static final int USER_SETUP_PERSONALIZATION_PAUSED = 2;

    
User has completed setup personalization.

@hide
/**
     * User has completed setup personalization.
     * @hide
     */
    public static final int USER_SETUP_PERSONALIZATION_COMPLETE = 10;

    
@hide
/** @hide */
    @Retention(RetentionPolicy.SOURCE)
    @IntDef({
            USER_SETUP_PERSONALIZATION_NOT_STARTED,
            USER_SETUP_PERSONALIZATION_STARTED,
            USER_SETUP_PERSONALIZATION_PAUSED,
            USER_SETUP_PERSONALIZATION_COMPLETE
    })
    public @interface UserSetupPersonalization {}

    
Activity Extra: Number of certificates

 This can be passed as an extra field to the ACTION_MONITORING_CERT_INFO intent to indicate the number of certificates 
@hide
/**
     * Activity Extra: Number of certificates
     * <p>
     * This can be passed as an extra field to the {@link #ACTION_MONITORING_CERT_INFO}
     * intent to indicate the number of certificates
     * @hide
     */
    public static final String EXTRA_NUMBER_OF_CERTIFICATES =
            "android.settings.extra.number_of_certificates";

    private static final String JID_RESOURCE_PREFIX = "android";

    public static final String AUTHORITY = "settings";

    private static final String TAG = "Settings";
    private static final boolean LOCAL_LOGV = false;

    // Lock ensures that when enabling/disabling the master location switch, we don't end up
    // with a partial enable/disable state in multi-threaded situations.
    private static final Object mLocationSettingsLock = new Object();

    // Used in system server calling uid workaround in call()
    private static boolean sInSystemServer = false;
    private static final Object sInSystemServerLock = new Object();

    
@hide
/** @hide */
    public static void setInSystemServer() {
        synchronized (sInSystemServerLock) {
            sInSystemServer = true;
        }
    }

    
@hide
/** @hide */
    public static boolean isInSystemServer() {
        synchronized (sInSystemServerLock) {
            return sInSystemServer;
        }
    }

    public static class SettingNotFoundException extends AndroidException {
        public SettingNotFoundException(String msg) {
            super(msg);
        }
    }

    
Common base for tables of name/value settings.

/**
     * Common base for tables of name/value settings.
     */
    public static class NameValueTable implements BaseColumns {
        public static final String NAME = "name";
        public static final String VALUE = "value";

        protected static boolean putString(ContentResolver resolver, Uri uri,
                String name, String value) {
            // The database will take care of replacing duplicates.
            try {
                ContentValues values = new ContentValues();
                values.put(NAME, name);
                values.put(VALUE, value);
                resolver.insert(uri, values);
                return true;
            } catch (SQLException e) {
                Log.w(TAG, "Can't set key " + name + " in " + uri, e);
                return false;
            }
        }

        public static Uri getUriFor(Uri uri, String name) {
            return Uri.withAppendedPath(uri, name);
        }
    }

    private static final class GenerationTracker {
        private final MemoryIntArray mArray;
        private final Runnable mErrorHandler;
        private final int mIndex;
        private int mCurrentGeneration;

        public GenerationTracker(@NonNull MemoryIntArray array, int index,
                int generation, Runnable errorHandler) {
            mArray = array;
            mIndex = index;
            mErrorHandler = errorHandler;
            mCurrentGeneration = generation;
        }

        public boolean isGenerationChanged() {
            final int currentGeneration = readCurrentGeneration();
            if (currentGeneration >= 0) {
                if (currentGeneration == mCurrentGeneration) {
                    return false;
                }
                mCurrentGeneration = currentGeneration;
            }
            return true;
        }

        public int getCurrentGeneration() {
            return mCurrentGeneration;
        }

        private int readCurrentGeneration() {
            try {
                return mArray.get(mIndex);
            } catch (IOException e) {
                Log.e(TAG, "Error getting current generation", e);
                if (mErrorHandler != null) {
                    mErrorHandler.run();
                }
            }
            return -1;
        }

        public void destroy() {
            try {
                mArray.close();
            } catch (IOException e) {
                Log.e(TAG, "Error closing backing array", e);
                if (mErrorHandler != null) {
                    mErrorHandler.run();
                }
            }
        }
    }

    private static final class ContentProviderHolder {
        private final Object mLock = new Object();

        @GuardedBy("mLock")
        private final Uri mUri;
        @GuardedBy("mLock")
        private IContentProvider mContentProvider;

        public ContentProviderHolder(Uri uri) {
            mUri = uri;
        }

        public IContentProvider getProvider(ContentResolver contentResolver) {
            synchronized (mLock) {
                if (mContentProvider == null) {
                    mContentProvider = contentResolver
                            .acquireProvider(mUri.getAuthority());
                }
                return mContentProvider;
            }
        }

        public void clearProviderForTest() {
            synchronized (mLock) {
                mContentProvider = null;
            }
        }
    }

    // Thread-safe.
    private static class NameValueCache {
        private static final boolean DEBUG = false;

        private static final String[] SELECT_VALUE_PROJECTION = new String[] {
                Settings.NameValueTable.VALUE
        };

        private static final String NAME_EQ_PLACEHOLDER = "name=?";

        // Must synchronize on 'this' to access mValues and mValuesVersion.
        private final HashMap<String, String> mValues = new HashMap<>();

        private final Uri mUri;
        private final ContentProviderHolder mProviderHolder;

        // The method we'll call (or null, to not use) on the provider
        // for the fast path of retrieving settings.
        private final String mCallGetCommand;
        private final String mCallSetCommand;

        @GuardedBy("this")
        private GenerationTracker mGenerationTracker;

        public NameValueCache(Uri uri, String getCommand, String setCommand,
                ContentProviderHolder providerHolder) {
            mUri = uri;
            mCallGetCommand = getCommand;
            mCallSetCommand = setCommand;
            mProviderHolder = providerHolder;
        }

        public boolean putStringForUser(ContentResolver cr, String name, String value,
                String tag, boolean makeDefault, final int userHandle) {
            try {
                Bundle arg = new Bundle();
                arg.putString(Settings.NameValueTable.VALUE, value);
                arg.putInt(CALL_METHOD_USER_KEY, userHandle);
                if (tag != null) {
                    arg.putString(CALL_METHOD_TAG_KEY, tag);
                }
                if (makeDefault) {
                    arg.putBoolean(CALL_METHOD_MAKE_DEFAULT_KEY, true);
                }
                IContentProvider cp = mProviderHolder.getProvider(cr);
                cp.call(cr.getPackageName(), mCallSetCommand, name, arg);
            } catch (RemoteException e) {
                Log.w(TAG, "Can't set key " + name + " in " + mUri, e);
                return false;
            }
            return true;
        }

        public String getStringForUser(ContentResolver cr, String name, final int userHandle) {
            final boolean isSelf = (userHandle == UserHandle.myUserId());
            int currentGeneration = -1;
            if (isSelf) {
                synchronized (NameValueCache.this) {
                    if (mGenerationTracker != null) {
                        if (mGenerationTracker.isGenerationChanged()) {
                            if (DEBUG) {
                                Log.i(TAG, "Generation changed for type:"
                                        + mUri.getPath() + " in package:"
                                        + cr.getPackageName() +" and user:" + userHandle);
                            }
                            mValues.clear();
                        } else if (mValues.containsKey(name)) {
                            return mValues.get(name);
                        }
                        if (mGenerationTracker != null) {
                            currentGeneration = mGenerationTracker.getCurrentGeneration();
                        }
                    }
                }
            } else {
                if (LOCAL_LOGV) Log.v(TAG, "get setting for user " + userHandle
                        + " by user " + UserHandle.myUserId() + " so skipping cache");
            }

            IContentProvider cp = mProviderHolder.getProvider(cr);

            // Try the fast path first, not using query().  If this
            // fails (alternate Settings provider that doesn't support
            // this interface?) then we fall back to the query/table
            // interface.
            if (mCallGetCommand != null) {
                try {
                    Bundle args = null;
                    if (!isSelf) {
                        args = new Bundle();
                        args.putInt(CALL_METHOD_USER_KEY, userHandle);
                    }
                    boolean needsGenerationTracker = false;
                    synchronized (NameValueCache.this) {
                        if (isSelf && mGenerationTracker == null) {
                            needsGenerationTracker = true;
                            if (args == null) {
                                args = new Bundle();
                            }
                            args.putString(CALL_METHOD_TRACK_GENERATION_KEY, null);
                            if (DEBUG) {
                                Log.i(TAG, "Requested generation tracker for type: "+ mUri.getPath()
                                        + " in package:" + cr.getPackageName() +" and user:"
                                        + userHandle);
                            }
                        }
                    }
                    Bundle b;
                    // If we're in system server and in a binder transaction we need to clear the
                    // calling uid. This works around code in system server that did not call
                    // clearCallingIdentity, previously this wasn't needed because reading settings
                    // did not do permission checking but thats no longer the case.
                    // Long term this should be removed and callers should properly call
                    // clearCallingIdentity or use a ContentResolver from the caller as needed.
                    if (Settings.isInSystemServer() && Binder.getCallingUid() != Process.myUid()) {
                        final long token = Binder.clearCallingIdentity();
                        try {
                            b = cp.call(cr.getPackageName(), mCallGetCommand, name, args);
                        } finally {
                            Binder.restoreCallingIdentity(token);
                        }
                    } else {
                        b = cp.call(cr.getPackageName(), mCallGetCommand, name, args);
                    }
                    if (b != null) {
                        String value = b.getString(Settings.NameValueTable.VALUE);
                        // Don't update our cache for reads of other users' data
                        if (isSelf) {
                            synchronized (NameValueCache.this) {
                                if (needsGenerationTracker) {
                                    MemoryIntArray array = b.getParcelable(
                                            CALL_METHOD_TRACK_GENERATION_KEY);
                                    final int index = b.getInt(
                                            CALL_METHOD_GENERATION_INDEX_KEY, -1);
                                    if (array != null && index >= 0) {
                                        final int generation = b.getInt(
                                                CALL_METHOD_GENERATION_KEY, 0);
                                        if (DEBUG) {
                                            Log.i(TAG, "Received generation tracker for type:"
                                                    + mUri.getPath() + " in package:"
                                                    + cr.getPackageName() + " and user:"
                                                    + userHandle + " with index:" + index);
                                        }
                                        if (mGenerationTracker != null) {
                                            mGenerationTracker.destroy();
                                        }
                                        mGenerationTracker = new GenerationTracker(array, index,
                                                generation, () -> {
                                            synchronized (NameValueCache.this) {
                                                Log.e(TAG, "Error accessing generation"
                                                        + " tracker - removing");
                                                if (mGenerationTracker != null) {
                                                    GenerationTracker generationTracker =
                                                            mGenerationTracker;
                                                    mGenerationTracker = null;
                                                    generationTracker.destroy();
                                                    mValues.clear();
                                                }
                                            }
                                        });
                                    }
                                }
                                if (mGenerationTracker != null && currentGeneration ==
                                        mGenerationTracker.getCurrentGeneration()) {
                                    mValues.put(name, value);
                                }
                            }
                        } else {
                            if (LOCAL_LOGV) Log.i(TAG, "call-query of user " + userHandle
                                    + " by " + UserHandle.myUserId()
                                    + " so not updating cache");
                        }
                        return value;
                    }
                    // If the response Bundle is null, we fall through
                    // to the query interface below.
                } catch (RemoteException e) {
                    // Not supported by the remote side?  Fall through
                    // to query().
                }
            }

            Cursor c = null;
            try {
                Bundle queryArgs = ContentResolver.createSqlQueryBundle(
                        NAME_EQ_PLACEHOLDER, new String[]{name}, null);
                // Same workaround as above.
                if (Settings.isInSystemServer() && Binder.getCallingUid() != Process.myUid()) {
                    final long token = Binder.clearCallingIdentity();
                    try {
                        c = cp.query(cr.getPackageName(), mUri, SELECT_VALUE_PROJECTION, queryArgs,
                                null);
                    } finally {
                        Binder.restoreCallingIdentity(token);
                    }
                } else {
                    c = cp.query(cr.getPackageName(), mUri, SELECT_VALUE_PROJECTION, queryArgs,
                            null);
                }
                if (c == null) {
                    Log.w(TAG, "Can't get key " + name + " from " + mUri);
                    return null;
                }

                String value = c.moveToNext() ? c.getString(0) : null;
                synchronized (NameValueCache.this) {
                    if(mGenerationTracker != null &&
                            currentGeneration == mGenerationTracker.getCurrentGeneration()) {
                        mValues.put(name, value);
                    }
                }
                if (LOCAL_LOGV) {
                    Log.v(TAG, "cache miss [" + mUri.getLastPathSegment() + "]: " +
                            name + " = " + (value == null ? "(null)" : value));
                }
                return value;
            } catch (RemoteException e) {
                Log.w(TAG, "Can't get key " + name + " from " + mUri, e);
                return null;  // Return null, but don't cache it.
            } finally {
                if (c != null) c.close();
            }
        }

        public void clearGenerationTrackerForTest() {
            synchronized (NameValueCache.this) {
                if (mGenerationTracker != null) {
                    mGenerationTracker.destroy();
                }
                mValues.clear();
                mGenerationTracker = null;
            }
        }
    }

    
Checks if the specified context can draw on top of other apps. As of API level 23, an app cannot draw on top of other apps unless it declares the SYSTEM_ALERT_WINDOW.SYSTEM_ALERT_WINDOW permission in its manifest, and the user specifically grants the app this capability. To prompt the user to grant this approval, the app must send an intent with the action ACTION_MANAGE_OVERLAY_PERMISSION, which causes the system to display a permission management screen. 
Params:
  • context – App context.
Returns:true if the specified context can draw on top of other apps, false otherwise
/**
     * Checks if the specified context can draw on top of other apps. As of API
     * level 23, an app cannot draw on top of other apps unless it declares the
     * {@link android.Manifest.permission#SYSTEM_ALERT_WINDOW} permission in its
     * manifest, <em>and</em> the user specifically grants the app this
     * capability. To prompt the user to grant this approval, the app must send an
     * intent with the action
     * {@link android.provider.Settings#ACTION_MANAGE_OVERLAY_PERMISSION}, which
     * causes the system to display a permission management screen.
     *
     * @param context App context.
     * @return true if the specified context can draw on top of other apps, false otherwise
     */
    public static boolean canDrawOverlays(Context context) {
        return Settings.isCallingPackageAllowedToDrawOverlays(context, Process.myUid(),
                context.getOpPackageName(), false);
    }

    
System settings, containing miscellaneous system preferences.  This
table holds simple name/value pairs.  There are convenience
functions for accessing individual settings entries.

/**
     * System settings, containing miscellaneous system preferences.  This
     * table holds simple name/value pairs.  There are convenience
     * functions for accessing individual settings entries.
     */
    public static final class System extends NameValueTable {
        // NOTE: If you add new settings here, be sure to add them to
        // com.android.providers.settings.SettingsProtoDumpUtil#dumpProtoSystemSettingsLocked.

        private static final float DEFAULT_FONT_SCALE = 1.0f;

        
The content:// style URL for this table

/**
         * The content:// style URL for this table
         */
        public static final Uri CONTENT_URI =
            Uri.parse("content://" + AUTHORITY + "/system");

        private static final ContentProviderHolder sProviderHolder =
                new ContentProviderHolder(CONTENT_URI);

        private static final NameValueCache sNameValueCache = new NameValueCache(
                CONTENT_URI,
                CALL_METHOD_GET_SYSTEM,
                CALL_METHOD_PUT_SYSTEM,
                sProviderHolder);

        private static final HashSet<String> MOVED_TO_SECURE;
        static {
            MOVED_TO_SECURE = new HashSet<>(30);
            MOVED_TO_SECURE.add(Secure.ANDROID_ID);
            MOVED_TO_SECURE.add(Secure.HTTP_PROXY);
            MOVED_TO_SECURE.add(Secure.LOCATION_PROVIDERS_ALLOWED);
            MOVED_TO_SECURE.add(Secure.LOCK_BIOMETRIC_WEAK_FLAGS);
            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_ENABLED);
            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_VISIBLE);
            MOVED_TO_SECURE.add(Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED);
            MOVED_TO_SECURE.add(Secure.LOGGING_ID);
            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_ENABLED);
            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_LAST_UPDATE);
            MOVED_TO_SECURE.add(Secure.PARENTAL_CONTROL_REDIRECT_URL);
            MOVED_TO_SECURE.add(Secure.SETTINGS_CLASSNAME);
            MOVED_TO_SECURE.add(Secure.USE_GOOGLE_MAIL);
            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
            MOVED_TO_SECURE.add(Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
            MOVED_TO_SECURE.add(Secure.WIFI_NUM_OPEN_NETWORKS_KEPT);
            MOVED_TO_SECURE.add(Secure.WIFI_ON);
            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE);
            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_AP_COUNT);
            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS);
            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED);
            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS);
            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT);
            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_MAX_AP_CHECKS);
            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_ON);
            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_COUNT);
            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_DELAY_MS);
            MOVED_TO_SECURE.add(Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS);

            // At one time in System, then Global, but now back in Secure
            MOVED_TO_SECURE.add(Secure.INSTALL_NON_MARKET_APPS);
        }

        private static final HashSet<String> MOVED_TO_GLOBAL;
        private static final HashSet<String> MOVED_TO_SECURE_THEN_GLOBAL;
        static {
            MOVED_TO_GLOBAL = new HashSet<>();
            MOVED_TO_SECURE_THEN_GLOBAL = new HashSet<>();

            // these were originally in system but migrated to secure in the past,
            // so are duplicated in the Secure.* namespace
            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.ADB_ENABLED);
            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.BLUETOOTH_ON);
            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.DATA_ROAMING);
            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.DEVICE_PROVISIONED);
            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.USB_MASS_STORAGE_ENABLED);
            MOVED_TO_SECURE_THEN_GLOBAL.add(Global.HTTP_PROXY);

            // these are moving directly from system to global
            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_ON);
            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_RADIOS);
            MOVED_TO_GLOBAL.add(Settings.Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS);
            MOVED_TO_GLOBAL.add(Settings.Global.AUTO_TIME);
            MOVED_TO_GLOBAL.add(Settings.Global.AUTO_TIME_ZONE);
            MOVED_TO_GLOBAL.add(Settings.Global.CAR_DOCK_SOUND);
            MOVED_TO_GLOBAL.add(Settings.Global.CAR_UNDOCK_SOUND);
            MOVED_TO_GLOBAL.add(Settings.Global.DESK_DOCK_SOUND);
            MOVED_TO_GLOBAL.add(Settings.Global.DESK_UNDOCK_SOUND);
            MOVED_TO_GLOBAL.add(Settings.Global.DOCK_SOUNDS_ENABLED);
            MOVED_TO_GLOBAL.add(Settings.Global.LOCK_SOUND);
            MOVED_TO_GLOBAL.add(Settings.Global.UNLOCK_SOUND);
            MOVED_TO_GLOBAL.add(Settings.Global.LOW_BATTERY_SOUND);
            MOVED_TO_GLOBAL.add(Settings.Global.POWER_SOUNDS_ENABLED);
            MOVED_TO_GLOBAL.add(Settings.Global.STAY_ON_WHILE_PLUGGED_IN);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SLEEP_POLICY);
            MOVED_TO_GLOBAL.add(Settings.Global.MODE_RINGER);
            MOVED_TO_GLOBAL.add(Settings.Global.WINDOW_ANIMATION_SCALE);
            MOVED_TO_GLOBAL.add(Settings.Global.TRANSITION_ANIMATION_SCALE);
            MOVED_TO_GLOBAL.add(Settings.Global.ANIMATOR_DURATION_SCALE);
            MOVED_TO_GLOBAL.add(Settings.Global.FANCY_IME_ANIMATIONS);
            MOVED_TO_GLOBAL.add(Settings.Global.COMPATIBILITY_MODE);
            MOVED_TO_GLOBAL.add(Settings.Global.EMERGENCY_TONE);
            MOVED_TO_GLOBAL.add(Settings.Global.CALL_AUTO_RETRY);
            MOVED_TO_GLOBAL.add(Settings.Global.DEBUG_APP);
            MOVED_TO_GLOBAL.add(Settings.Global.WAIT_FOR_DEBUGGER);
            MOVED_TO_GLOBAL.add(Settings.Global.ALWAYS_FINISH_ACTIVITIES);
            MOVED_TO_GLOBAL.add(Settings.Global.TZINFO_UPDATE_CONTENT_URL);
            MOVED_TO_GLOBAL.add(Settings.Global.TZINFO_UPDATE_METADATA_URL);
            MOVED_TO_GLOBAL.add(Settings.Global.SELINUX_UPDATE_CONTENT_URL);
            MOVED_TO_GLOBAL.add(Settings.Global.SELINUX_UPDATE_METADATA_URL);
            MOVED_TO_GLOBAL.add(Settings.Global.SMS_SHORT_CODES_UPDATE_CONTENT_URL);
            MOVED_TO_GLOBAL.add(Settings.Global.SMS_SHORT_CODES_UPDATE_METADATA_URL);
            MOVED_TO_GLOBAL.add(Settings.Global.CERT_PIN_UPDATE_CONTENT_URL);
            MOVED_TO_GLOBAL.add(Settings.Global.CERT_PIN_UPDATE_METADATA_URL);
        }

        
@hide
/** @hide */
        public static void getMovedToGlobalSettings(Set<String> outKeySet) {
            outKeySet.addAll(MOVED_TO_GLOBAL);
            outKeySet.addAll(MOVED_TO_SECURE_THEN_GLOBAL);
        }

        
@hide
/** @hide */
        public static void getMovedToSecureSettings(Set<String> outKeySet) {
            outKeySet.addAll(MOVED_TO_SECURE);
        }

        
@hide
/** @hide */
        public static void getNonLegacyMovedKeys(HashSet<String> outKeySet) {
            outKeySet.addAll(MOVED_TO_GLOBAL);
        }

        
@hide
/** @hide */
        public static void clearProviderForTest() {
            sProviderHolder.clearProviderForTest();
            sNameValueCache.clearGenerationTrackerForTest();
        }

        
Look up a name in the database.

Params:
  • resolver – to access the database with
  • name – to look up in the table
Returns:the corresponding value, or null if not present
/**
         * Look up a name in the database.
         * @param resolver to access the database with
         * @param name to look up in the table
         * @return the corresponding value, or null if not present
         */
        public static String getString(ContentResolver resolver, String name) {
            return getStringForUser(resolver, name, resolver.getUserId());
        }

        
@hide
/** @hide */
        public static String getStringForUser(ContentResolver resolver, String name,
                int userHandle) {
            if (MOVED_TO_SECURE.contains(name)) {
                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
                        + " to android.provider.Settings.Secure, returning read-only value.");
                return Secure.getStringForUser(resolver, name, userHandle);
            }
            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
                        + " to android.provider.Settings.Global, returning read-only value.");
                return Global.getStringForUser(resolver, name, userHandle);
            }
            return sNameValueCache.getStringForUser(resolver, name, userHandle);
        }

        
Store a name/value pair into the database.

Params:
  • resolver – to access the database with
  • name – to store
  • value – to associate with the name
Returns:true if the value was set, false on database errors
/**
         * Store a name/value pair into the database.
         * @param resolver to access the database with
         * @param name to store
         * @param value to associate with the name
         * @return true if the value was set, false on database errors
         */
        public static boolean putString(ContentResolver resolver, String name, String value) {
            return putStringForUser(resolver, name, value, resolver.getUserId());
        }

        
@hide
/** @hide */
        public static boolean putStringForUser(ContentResolver resolver, String name, String value,
                int userHandle) {
            if (MOVED_TO_SECURE.contains(name)) {
                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
                        + " to android.provider.Settings.Secure, value is unchanged.");
                return false;
            }
            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
                        + " to android.provider.Settings.Global, value is unchanged.");
                return false;
            }
            return sNameValueCache.putStringForUser(resolver, name, value, null, false, userHandle);
        }

        
Construct the content URI for a particular name/value pair,
useful for monitoring changes with a ContentObserver.

Params:
  • name – to look up in the table
Returns:the corresponding content URI, or null if not present
/**
         * Construct the content URI for a particular name/value pair,
         * useful for monitoring changes with a ContentObserver.
         * @param name to look up in the table
         * @return the corresponding content URI, or null if not present
         */
        public static Uri getUriFor(String name) {
            if (MOVED_TO_SECURE.contains(name)) {
                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
                    + " to android.provider.Settings.Secure, returning Secure URI.");
                return Secure.getUriFor(Secure.CONTENT_URI, name);
            }
            if (MOVED_TO_GLOBAL.contains(name) || MOVED_TO_SECURE_THEN_GLOBAL.contains(name)) {
                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.System"
                        + " to android.provider.Settings.Global, returning read-only global URI.");
                return Global.getUriFor(Global.CONTENT_URI, name);
            }
            return getUriFor(CONTENT_URI, name);
        }

        
Convenience function for retrieving a single system settings value
as an integer.  Note that internally setting values are always
stored as strings; this function converts the string to an integer
for you.  The default value will be returned if the setting is
not defined or not an integer.

Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
  • def – Value to return if the setting is not defined.
Returns:The setting's current value, or 'def' if it is not defined
or not a valid integer.
/**
         * Convenience function for retrieving a single system settings value
         * as an integer.  Note that internally setting values are always
         * stored as strings; this function converts the string to an integer
         * for you.  The default value will be returned if the setting is
         * not defined or not an integer.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         * @param def Value to return if the setting is not defined.
         *
         * @return The setting's current value, or 'def' if it is not defined
         * or not a valid integer.
         */
        public static int getInt(ContentResolver cr, String name, int def) {
            return getIntForUser(cr, name, def, cr.getUserId());
        }

        
@hide
/** @hide */
        public static int getIntForUser(ContentResolver cr, String name, int def, int userHandle) {
            String v = getStringForUser(cr, name, userHandle);
            try {
                return v != null ? Integer.parseInt(v) : def;
            } catch (NumberFormatException e) {
                return def;
            }
        }

        
Convenience function for retrieving a single system settings value
as an integer.  Note that internally setting values are always
stored as strings; this function converts the string to an integer
for you.

 This version does not take a default value. If the setting has not been set, or the string value is not a number, it throws SettingNotFoundException. 
Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
Throws:
  • SettingNotFoundException – Thrown if a setting by the given
name can't be found or the setting value is not an integer.
Returns:The setting's current value.
/**
         * Convenience function for retrieving a single system settings value
         * as an integer.  Note that internally setting values are always
         * stored as strings; this function converts the string to an integer
         * for you.
         * <p>
         * This version does not take a default value.  If the setting has not
         * been set, or the string value is not a number,
         * it throws {@link SettingNotFoundException}.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         *
         * @throws SettingNotFoundException Thrown if a setting by the given
         * name can't be found or the setting value is not an integer.
         *
         * @return The setting's current value.
         */
        public static int getInt(ContentResolver cr, String name)
                throws SettingNotFoundException {
            return getIntForUser(cr, name, cr.getUserId());
        }

        
@hide
/** @hide */
        public static int getIntForUser(ContentResolver cr, String name, int userHandle)
                throws SettingNotFoundException {
            String v = getStringForUser(cr, name, userHandle);
            try {
                return Integer.parseInt(v);
            } catch (NumberFormatException e) {
                throw new SettingNotFoundException(name);
            }
        }

        
Convenience function for updating a single settings value as an
integer. This will either create a new entry in the table if the
given name does not exist, or modify the value of the existing row
with that name.  Note that internally setting values are always
stored as strings, so this function converts the given value to a
string before storing it.

Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to modify.
  • value – The new value for the setting.
Returns:true if the value was set, false on database errors
/**
         * Convenience function for updating a single settings value as an
         * integer. This will either create a new entry in the table if the
         * given name does not exist, or modify the value of the existing row
         * with that name.  Note that internally setting values are always
         * stored as strings, so this function converts the given value to a
         * string before storing it.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to modify.
         * @param value The new value for the setting.
         * @return true if the value was set, false on database errors
         */
        public static boolean putInt(ContentResolver cr, String name, int value) {
            return putIntForUser(cr, name, value, cr.getUserId());
        }

        
@hide
/** @hide */
        public static boolean putIntForUser(ContentResolver cr, String name, int value,
                int userHandle) {
            return putStringForUser(cr, name, Integer.toString(value), userHandle);
        }

        
Convenience function for retrieving a single system settings value as a long. Note that internally setting values are always stored as strings; this function converts the string to a long for you. The default value will be returned if the setting is not defined or not a long. 
Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
  • def – Value to return if the setting is not defined.
Returns:The setting's current value, or 'def' if it is not defined or not a valid long.
/**
         * Convenience function for retrieving a single system settings value
         * as a {@code long}.  Note that internally setting values are always
         * stored as strings; this function converts the string to a {@code long}
         * for you.  The default value will be returned if the setting is
         * not defined or not a {@code long}.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         * @param def Value to return if the setting is not defined.
         *
         * @return The setting's current value, or 'def' if it is not defined
         * or not a valid {@code long}.
         */
        public static long getLong(ContentResolver cr, String name, long def) {
            return getLongForUser(cr, name, def, cr.getUserId());
        }

        
@hide
/** @hide */
        public static long getLongForUser(ContentResolver cr, String name, long def,
                int userHandle) {
            String valString = getStringForUser(cr, name, userHandle);
            long value;
            try {
                value = valString != null ? Long.parseLong(valString) : def;
            } catch (NumberFormatException e) {
                value = def;
            }
            return value;
        }

        
Convenience function for retrieving a single system settings value as a long. Note that internally setting values are always stored as strings; this function converts the string to a long for you. 
 This version does not take a default value. If the setting has not been set, or the string value is not a number, it throws SettingNotFoundException. 
Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
Throws:
  • SettingNotFoundException – Thrown if a setting by the given
name can't be found or the setting value is not an integer.
Returns:The setting's current value.
/**
         * Convenience function for retrieving a single system settings value
         * as a {@code long}.  Note that internally setting values are always
         * stored as strings; this function converts the string to a {@code long}
         * for you.
         * <p>
         * This version does not take a default value.  If the setting has not
         * been set, or the string value is not a number,
         * it throws {@link SettingNotFoundException}.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         *
         * @return The setting's current value.
         * @throws SettingNotFoundException Thrown if a setting by the given
         * name can't be found or the setting value is not an integer.
         */
        public static long getLong(ContentResolver cr, String name)
                throws SettingNotFoundException {
            return getLongForUser(cr, name, cr.getUserId());
        }

        
@hide
/** @hide */
        public static long getLongForUser(ContentResolver cr, String name, int userHandle)
                throws SettingNotFoundException {
            String valString = getStringForUser(cr, name, userHandle);
            try {
                return Long.parseLong(valString);
            } catch (NumberFormatException e) {
                throw new SettingNotFoundException(name);
            }
        }

        
Convenience function for updating a single settings value as a long
integer. This will either create a new entry in the table if the
given name does not exist, or modify the value of the existing row
with that name.  Note that internally setting values are always
stored as strings, so this function converts the given value to a
string before storing it.

Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to modify.
  • value – The new value for the setting.
Returns:true if the value was set, false on database errors
/**
         * Convenience function for updating a single settings value as a long
         * integer. This will either create a new entry in the table if the
         * given name does not exist, or modify the value of the existing row
         * with that name.  Note that internally setting values are always
         * stored as strings, so this function converts the given value to a
         * string before storing it.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to modify.
         * @param value The new value for the setting.
         * @return true if the value was set, false on database errors
         */
        public static boolean putLong(ContentResolver cr, String name, long value) {
            return putLongForUser(cr, name, value, cr.getUserId());
        }

        
@hide
/** @hide */
        public static boolean putLongForUser(ContentResolver cr, String name, long value,
                int userHandle) {
            return putStringForUser(cr, name, Long.toString(value), userHandle);
        }

        
Convenience function for retrieving a single system settings value
as a floating point number.  Note that internally setting values are
always stored as strings; this function converts the string to an
float for you. The default value will be returned if the setting
is not defined or not a valid float.

Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
  • def – Value to return if the setting is not defined.
Returns:The setting's current value, or 'def' if it is not defined
or not a valid float.
/**
         * Convenience function for retrieving a single system settings value
         * as a floating point number.  Note that internally setting values are
         * always stored as strings; this function converts the string to an
         * float for you. The default value will be returned if the setting
         * is not defined or not a valid float.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         * @param def Value to return if the setting is not defined.
         *
         * @return The setting's current value, or 'def' if it is not defined
         * or not a valid float.
         */
        public static float getFloat(ContentResolver cr, String name, float def) {
            return getFloatForUser(cr, name, def, cr.getUserId());
        }

        
@hide
/** @hide */
        public static float getFloatForUser(ContentResolver cr, String name, float def,
                int userHandle) {
            String v = getStringForUser(cr, name, userHandle);
            try {
                return v != null ? Float.parseFloat(v) : def;
            } catch (NumberFormatException e) {
                return def;
            }
        }

        
Convenience function for retrieving a single system settings value
as a float.  Note that internally setting values are always
stored as strings; this function converts the string to a float
for you.

 This version does not take a default value. If the setting has not been set, or the string value is not a number, it throws SettingNotFoundException. 
Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
Throws:
Returns:The setting's current value.
/**
         * Convenience function for retrieving a single system settings value
         * as a float.  Note that internally setting values are always
         * stored as strings; this function converts the string to a float
         * for you.
         * <p>
         * This version does not take a default value.  If the setting has not
         * been set, or the string value is not a number,
         * it throws {@link SettingNotFoundException}.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         *
         * @throws SettingNotFoundException Thrown if a setting by the given
         * name can't be found or the setting value is not a float.
         *
         * @return The setting's current value.
         */
        public static float getFloat(ContentResolver cr, String name)
                throws SettingNotFoundException {
            return getFloatForUser(cr, name, cr.getUserId());
        }

        
@hide
/** @hide */
        public static float getFloatForUser(ContentResolver cr, String name, int userHandle)
                throws SettingNotFoundException {
            String v = getStringForUser(cr, name, userHandle);
            if (v == null) {
                throw new SettingNotFoundException(name);
            }
            try {
                return Float.parseFloat(v);
            } catch (NumberFormatException e) {
                throw new SettingNotFoundException(name);
            }
        }

        
Convenience function for updating a single settings value as a
floating point number. This will either create a new entry in the
table if the given name does not exist, or modify the value of the
existing row with that name.  Note that internally setting values
are always stored as strings, so this function converts the given
value to a string before storing it.

Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to modify.
  • value – The new value for the setting.
Returns:true if the value was set, false on database errors
/**
         * Convenience function for updating a single settings value as a
         * floating point number. This will either create a new entry in the
         * table if the given name does not exist, or modify the value of the
         * existing row with that name.  Note that internally setting values
         * are always stored as strings, so this function converts the given
         * value to a string before storing it.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to modify.
         * @param value The new value for the setting.
         * @return true if the value was set, false on database errors
         */
        public static boolean putFloat(ContentResolver cr, String name, float value) {
            return putFloatForUser(cr, name, value, cr.getUserId());
        }

        
@hide
/** @hide */
        public static boolean putFloatForUser(ContentResolver cr, String name, float value,
                int userHandle) {
            return putStringForUser(cr, name, Float.toString(value), userHandle);
        }

        
Convenience function to read all of the current configuration-related settings into a Configuration object. 
Params:
  • cr – The ContentResolver to access.
  • outConfig – Where to place the configuration settings.
/**
         * Convenience function to read all of the current
         * configuration-related settings into a
         * {@link Configuration} object.
         *
         * @param cr The ContentResolver to access.
         * @param outConfig Where to place the configuration settings.
         */
        public static void getConfiguration(ContentResolver cr, Configuration outConfig) {
            adjustConfigurationForUser(cr, outConfig, cr.getUserId(),
                    false /* updateSettingsIfEmpty */);
        }

        
@hide
/** @hide */
        public static void adjustConfigurationForUser(ContentResolver cr, Configuration outConfig,
                int userHandle, boolean updateSettingsIfEmpty) {
            outConfig.fontScale = Settings.System.getFloatForUser(
                    cr, FONT_SCALE, DEFAULT_FONT_SCALE, userHandle);
            if (outConfig.fontScale < 0) {
                outConfig.fontScale = DEFAULT_FONT_SCALE;
            }

            final String localeValue =
                    Settings.System.getStringForUser(cr, SYSTEM_LOCALES, userHandle);
            if (localeValue != null) {
                outConfig.setLocales(LocaleList.forLanguageTags(localeValue));
            } else {
                // Do not update configuration with emtpy settings since we need to take over the
                // locale list of previous user if the settings value is empty. This happens when a
                // new user is created.

                if (updateSettingsIfEmpty) {
                    // Make current configuration persistent. This is necessary the first time a
                    // user log in. At the first login, the configuration settings are empty, so we
                    // need to store the adjusted configuration as the initial settings.
                    Settings.System.putStringForUser(
                            cr, SYSTEM_LOCALES, outConfig.getLocales().toLanguageTags(),
                            userHandle);
                }
            }
        }

        
@hideErase the fields in the Configuration that should be applied
by the settings.
/**
         * @hide Erase the fields in the Configuration that should be applied
         * by the settings.
         */
        public static void clearConfiguration(Configuration inoutConfig) {
            inoutConfig.fontScale = 0;
            if (!inoutConfig.userSetLocale && !inoutConfig.getLocales().isEmpty()) {
                inoutConfig.clearLocales();
            }
        }

        
Convenience function to write a batch of configuration-related settings from a Configuration object. 
Params:
  • cr – The ContentResolver to access.
  • config – The settings to write.
Returns:true if the values were set, false on database errors
/**
         * Convenience function to write a batch of configuration-related
         * settings from a {@link Configuration} object.
         *
         * @param cr The ContentResolver to access.
         * @param config The settings to write.
         * @return true if the values were set, false on database errors
         */
        public static boolean putConfiguration(ContentResolver cr, Configuration config) {
            return putConfigurationForUser(cr, config, cr.getUserId());
        }

        
@hide
/** @hide */
        public static boolean putConfigurationForUser(ContentResolver cr, Configuration config,
                int userHandle) {
            return Settings.System.putFloatForUser(cr, FONT_SCALE, config.fontScale, userHandle) &&
                    Settings.System.putStringForUser(
                            cr, SYSTEM_LOCALES, config.getLocales().toLanguageTags(), userHandle);
        }

        
@hide
/** @hide */
        public static boolean hasInterestingConfigurationChanges(int changes) {
            return (changes & ActivityInfo.CONFIG_FONT_SCALE) != 0 ||
                    (changes & ActivityInfo.CONFIG_LOCALE) != 0;
        }

        
Deprecated:- Do not use
/** @deprecated - Do not use */
        @Deprecated
        public static boolean getShowGTalkServiceStatus(ContentResolver cr) {
            return getShowGTalkServiceStatusForUser(cr, cr.getUserId());
        }

        
@hide
Deprecated:- Do not use
/**
         * @hide
         * @deprecated - Do not use
         */
        @Deprecated
        public static boolean getShowGTalkServiceStatusForUser(ContentResolver cr,
                int userHandle) {
            return getIntForUser(cr, SHOW_GTALK_SERVICE_STATUS, 0, userHandle) != 0;
        }

        
Deprecated:- Do not use
/** @deprecated - Do not use */
        @Deprecated
        public static void setShowGTalkServiceStatus(ContentResolver cr, boolean flag) {
            setShowGTalkServiceStatusForUser(cr, flag, cr.getUserId());
        }

        
@hide
Deprecated:- Do not use
/**
         * @hide
         * @deprecated - Do not use
         */
        @Deprecated
        public static void setShowGTalkServiceStatusForUser(ContentResolver cr, boolean flag,
                int userHandle) {
            putIntForUser(cr, SHOW_GTALK_SERVICE_STATUS, flag ? 1 : 0, userHandle);
        }

        
Deprecated:Use Global.STAY_ON_WHILE_PLUGGED_IN instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#STAY_ON_WHILE_PLUGGED_IN} instead
         */
        @Deprecated
        public static final String STAY_ON_WHILE_PLUGGED_IN = Global.STAY_ON_WHILE_PLUGGED_IN;

        private static final Validator STAY_ON_WHILE_PLUGGED_IN_VALIDATOR = new Validator() {
            @Override
            public boolean validate(String value) {
                try {
                    int val = Integer.parseInt(value);
                    return (val == 0)
                            || (val == BatteryManager.BATTERY_PLUGGED_AC)
                            || (val == BatteryManager.BATTERY_PLUGGED_USB)
                            || (val == BatteryManager.BATTERY_PLUGGED_WIRELESS)
                            || (val == (BatteryManager.BATTERY_PLUGGED_AC
                                    | BatteryManager.BATTERY_PLUGGED_USB))
                            || (val == (BatteryManager.BATTERY_PLUGGED_AC
                                    | BatteryManager.BATTERY_PLUGGED_WIRELESS))
                            || (val == (BatteryManager.BATTERY_PLUGGED_USB
                                    | BatteryManager.BATTERY_PLUGGED_WIRELESS))
                            || (val == (BatteryManager.BATTERY_PLUGGED_AC
                                    | BatteryManager.BATTERY_PLUGGED_USB
                                    | BatteryManager.BATTERY_PLUGGED_WIRELESS));
                } catch (NumberFormatException e) {
                    return false;
                }
            }
        };

        
What happens when the user presses the end call button if they're not
on a call.

Values:

0 - The end button does nothing.

1 - The end button goes to the home screen.

2 - The end button puts the device to sleep and locks the keyguard.

3 - The end button goes to the home screen.  If the user is already on the
home screen, it puts the device to sleep.

/**
         * What happens when the user presses the end call button if they're not
         * on a call.<br/>
         * <b>Values:</b><br/>
         * 0 - The end button does nothing.<br/>
         * 1 - The end button goes to the home screen.<br/>
         * 2 - The end button puts the device to sleep and locks the keyguard.<br/>
         * 3 - The end button goes to the home screen.  If the user is already on the
         * home screen, it puts the device to sleep.
         */
        public static final String END_BUTTON_BEHAVIOR = "end_button_behavior";

        private static final Validator END_BUTTON_BEHAVIOR_VALIDATOR =
                new SettingsValidators.InclusiveIntegerRangeValidator(0, 3);

        
END_BUTTON_BEHAVIOR value for "go home".

@hide
/**
         * END_BUTTON_BEHAVIOR value for "go home".
         * @hide
         */
        public static final int END_BUTTON_BEHAVIOR_HOME = 0x1;

        
END_BUTTON_BEHAVIOR value for "go to sleep".

@hide
/**
         * END_BUTTON_BEHAVIOR value for "go to sleep".
         * @hide
         */
        public static final int END_BUTTON_BEHAVIOR_SLEEP = 0x2;

        
END_BUTTON_BEHAVIOR default value.

@hide
/**
         * END_BUTTON_BEHAVIOR default value.
         * @hide
         */
        public static final int END_BUTTON_BEHAVIOR_DEFAULT = END_BUTTON_BEHAVIOR_SLEEP;

        
Is advanced settings mode turned on. 0 == no, 1 == yes

@hide
/**
         * Is advanced settings mode turned on. 0 == no, 1 == yes
         * @hide
         */
        public static final String ADVANCED_SETTINGS = "advanced_settings";

        private static final Validator ADVANCED_SETTINGS_VALIDATOR = BOOLEAN_VALIDATOR;

        
ADVANCED_SETTINGS default value.

@hide
/**
         * ADVANCED_SETTINGS default value.
         * @hide
         */
        public static final int ADVANCED_SETTINGS_DEFAULT = 0;

        
Deprecated:Use Global.AIRPLANE_MODE_ON instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_ON} instead
         */
        @Deprecated
        public static final String AIRPLANE_MODE_ON = Global.AIRPLANE_MODE_ON;

        
Deprecated:Use Global.RADIO_BLUETOOTH instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#RADIO_BLUETOOTH} instead
         */
        @Deprecated
        public static final String RADIO_BLUETOOTH = Global.RADIO_BLUETOOTH;

        
Deprecated:Use Global.RADIO_WIFI instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#RADIO_WIFI} instead
         */
        @Deprecated
        public static final String RADIO_WIFI = Global.RADIO_WIFI;

        
Deprecated:Use Global.RADIO_WIMAX instead {@hide}
/**
         * @deprecated Use {@link android.provider.Settings.Global#RADIO_WIMAX} instead
         * {@hide}
         */
        @Deprecated
        public static final String RADIO_WIMAX = Global.RADIO_WIMAX;

        
Deprecated:Use Global.RADIO_CELL instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#RADIO_CELL} instead
         */
        @Deprecated
        public static final String RADIO_CELL = Global.RADIO_CELL;

        
Deprecated:Use Global.RADIO_NFC instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#RADIO_NFC} instead
         */
        @Deprecated
        public static final String RADIO_NFC = Global.RADIO_NFC;

        
Deprecated:Use Global.AIRPLANE_MODE_RADIOS instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_RADIOS} instead
         */
        @Deprecated
        public static final String AIRPLANE_MODE_RADIOS = Global.AIRPLANE_MODE_RADIOS;

        
Deprecated:Use Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS instead {@hide}
/**
         * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_TOGGLEABLE_RADIOS} instead
         *
         * {@hide}
         */
        @Deprecated
        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS =
                Global.AIRPLANE_MODE_TOGGLEABLE_RADIOS;

        
Deprecated:Use Global.WIFI_SLEEP_POLICY instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY} instead
         */
        @Deprecated
        public static final String WIFI_SLEEP_POLICY = Global.WIFI_SLEEP_POLICY;

        
Deprecated:Use Global.WIFI_SLEEP_POLICY_DEFAULT instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_DEFAULT} instead
         */
        @Deprecated
        public static final int WIFI_SLEEP_POLICY_DEFAULT = Global.WIFI_SLEEP_POLICY_DEFAULT;

        
Deprecated:Use Global.WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED} instead
         */
        @Deprecated
        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED =
                Global.WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED;

        
Deprecated:Use Global.WIFI_SLEEP_POLICY_NEVER instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#WIFI_SLEEP_POLICY_NEVER} instead
         */
        @Deprecated
        public static final int WIFI_SLEEP_POLICY_NEVER = Global.WIFI_SLEEP_POLICY_NEVER;

        
Deprecated:Use Global.MODE_RINGER instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#MODE_RINGER} instead
         */
        @Deprecated
        public static final String MODE_RINGER = Global.MODE_RINGER;

        
Whether to use static IP and other static network attributes.


Set to 1 for true and 0 for false.

Deprecated:Use WifiManager instead
/**
         * Whether to use static IP and other static network attributes.
         * <p>
         * Set to 1 for true and 0 for false.
         *
         * @deprecated Use {@link WifiManager} instead
         */
        @Deprecated
        public static final String WIFI_USE_STATIC_IP = "wifi_use_static_ip";

        private static final Validator WIFI_USE_STATIC_IP_VALIDATOR = BOOLEAN_VALIDATOR;

        
The static IP address.


Example: "192.168.1.51"

Deprecated:Use WifiManager instead
/**
         * The static IP address.
         * <p>
         * Example: "192.168.1.51"
         *
         * @deprecated Use {@link WifiManager} instead
         */
        @Deprecated
        public static final String WIFI_STATIC_IP = "wifi_static_ip";

        private static final Validator WIFI_STATIC_IP_VALIDATOR = LENIENT_IP_ADDRESS_VALIDATOR;

        
If using static IP, the gateway's IP address.


Example: "192.168.1.1"

Deprecated:Use WifiManager instead
/**
         * If using static IP, the gateway's IP address.
         * <p>
         * Example: "192.168.1.1"
         *
         * @deprecated Use {@link WifiManager} instead
         */
        @Deprecated
        public static final String WIFI_STATIC_GATEWAY = "wifi_static_gateway";

        private static final Validator WIFI_STATIC_GATEWAY_VALIDATOR = LENIENT_IP_ADDRESS_VALIDATOR;

        
If using static IP, the net mask.


Example: "255.255.255.0"

Deprecated:Use WifiManager instead
/**
         * If using static IP, the net mask.
         * <p>
         * Example: "255.255.255.0"
         *
         * @deprecated Use {@link WifiManager} instead
         */
        @Deprecated
        public static final String WIFI_STATIC_NETMASK = "wifi_static_netmask";

        private static final Validator WIFI_STATIC_NETMASK_VALIDATOR = LENIENT_IP_ADDRESS_VALIDATOR;

        
If using static IP, the primary DNS's IP address.


Example: "192.168.1.1"

Deprecated:Use WifiManager instead
/**
         * If using static IP, the primary DNS's IP address.
         * <p>
         * Example: "192.168.1.1"
         *
         * @deprecated Use {@link WifiManager} instead
         */
        @Deprecated
        public static final String WIFI_STATIC_DNS1 = "wifi_static_dns1";

        private static final Validator WIFI_STATIC_DNS1_VALIDATOR = LENIENT_IP_ADDRESS_VALIDATOR;

        
If using static IP, the secondary DNS's IP address.


Example: "192.168.1.2"

Deprecated:Use WifiManager instead
/**
         * If using static IP, the secondary DNS's IP address.
         * <p>
         * Example: "192.168.1.2"
         *
         * @deprecated Use {@link WifiManager} instead
         */
        @Deprecated
        public static final String WIFI_STATIC_DNS2 = "wifi_static_dns2";

        private static final Validator WIFI_STATIC_DNS2_VALIDATOR = LENIENT_IP_ADDRESS_VALIDATOR;

        
Determines whether remote devices may discover and/or connect to
this device.

Type: INT

2 -- discoverable and connectable
1 -- connectable but not discoverable
0 -- neither connectable nor discoverable

/**
         * Determines whether remote devices may discover and/or connect to
         * this device.
         * <P>Type: INT</P>
         * 2 -- discoverable and connectable
         * 1 -- connectable but not discoverable
         * 0 -- neither connectable nor discoverable
         */
        public static final String BLUETOOTH_DISCOVERABILITY =
            "bluetooth_discoverability";

        private static final Validator BLUETOOTH_DISCOVERABILITY_VALIDATOR =
                new SettingsValidators.InclusiveIntegerRangeValidator(0, 2);

        
Bluetooth discoverability timeout.  If this value is nonzero, then
Bluetooth becomes discoverable for a certain number of seconds,
after which is becomes simply connectable.  The value is in seconds.

/**
         * Bluetooth discoverability timeout.  If this value is nonzero, then
         * Bluetooth becomes discoverable for a certain number of seconds,
         * after which is becomes simply connectable.  The value is in seconds.
         */
        public static final String BLUETOOTH_DISCOVERABILITY_TIMEOUT =
            "bluetooth_discoverability_timeout";

        private static final Validator BLUETOOTH_DISCOVERABILITY_TIMEOUT_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
Deprecated:Use Secure.LOCK_PATTERN_ENABLED instead
/**
         * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_ENABLED}
         * instead
         */
        @Deprecated
        public static final String LOCK_PATTERN_ENABLED = Secure.LOCK_PATTERN_ENABLED;

        
Deprecated:Use Secure.LOCK_PATTERN_VISIBLE instead
/**
         * @deprecated Use {@link android.provider.Settings.Secure#LOCK_PATTERN_VISIBLE}
         * instead
         */
        @Deprecated
        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";

        
Deprecated:Use Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED instead
/**
         * @deprecated Use
         * {@link android.provider.Settings.Secure#LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED}
         * instead
         */
        @Deprecated
        public static final String LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED =
            "lock_pattern_tactile_feedback_enabled";

        
A formatted string of the next alarm that is set, or the empty string
if there is no alarm set.

Deprecated:Use AlarmManager.getNextAlarmClock().
/**
         * A formatted string of the next alarm that is set, or the empty string
         * if there is no alarm set.
         *
         * @deprecated Use {@link android.app.AlarmManager#getNextAlarmClock()}.
         */
        @Deprecated
        public static final String NEXT_ALARM_FORMATTED = "next_alarm_formatted";

        private static final Validator NEXT_ALARM_FORMATTED_VALIDATOR = new Validator() {
            private static final int MAX_LENGTH = 1000;

            @Override
            public boolean validate(String value) {
                // TODO: No idea what the correct format is.
                return value == null || value.length() < MAX_LENGTH;
            }
        };

        
Scaling factor for fonts, float.

/**
         * Scaling factor for fonts, float.
         */
        public static final String FONT_SCALE = "font_scale";

        private static final Validator FONT_SCALE_VALIDATOR = new Validator() {
            @Override
            public boolean validate(@Nullable String value) {
                try {
                    return Float.parseFloat(value) >= 0;
                } catch (NumberFormatException | NullPointerException e) {
                    return false;
                }
            }
        };

        
The serialized system locale value. Do not use this value directory. To get system locale, use LocaleList.getDefault instead. To update system locale, use LocalePicker.updateLocales instead. 
@hide
/**
         * The serialized system locale value.
         *
         * Do not use this value directory.
         * To get system locale, use {@link LocaleList#getDefault} instead.
         * To update system locale, use {@link com.android.internal.app.LocalePicker#updateLocales}
         * instead.
         * @hide
         */
        public static final String SYSTEM_LOCALES = "system_locales";


        
Name of an application package to be debugged.

Deprecated:Use Global.DEBUG_APP instead
/**
         * Name of an application package to be debugged.
         *
         * @deprecated Use {@link Global#DEBUG_APP} instead
         */
        @Deprecated
        public static final String DEBUG_APP = Global.DEBUG_APP;

        
If 1, when launching DEBUG_APP it will wait for the debugger before
starting user code.  If 0, it will run normally.

Deprecated:Use Global.WAIT_FOR_DEBUGGER instead
/**
         * If 1, when launching DEBUG_APP it will wait for the debugger before
         * starting user code.  If 0, it will run normally.
         *
         * @deprecated Use {@link Global#WAIT_FOR_DEBUGGER} instead
         */
        @Deprecated
        public static final String WAIT_FOR_DEBUGGER = Global.WAIT_FOR_DEBUGGER;

        
Whether or not to dim the screen. 0=no  1=yes

Deprecated:This setting is no longer used.
/**
         * Whether or not to dim the screen. 0=no  1=yes
         * @deprecated This setting is no longer used.
         */
        @Deprecated
        public static final String DIM_SCREEN = "dim_screen";

        private static final Validator DIM_SCREEN_VALIDATOR = BOOLEAN_VALIDATOR;

        
The display color mode.

@hide
/**
         * The display color mode.
         * @hide
         */
        public static final String DISPLAY_COLOR_MODE = "display_color_mode";

        private static final Validator DISPLAY_COLOR_MODE_VALIDATOR =
                new SettingsValidators.InclusiveIntegerRangeValidator(
                        ColorDisplayController.COLOR_MODE_NATURAL,
                        ColorDisplayController.COLOR_MODE_AUTOMATIC);

        
The amount of time in milliseconds before the device goes to sleep or begins
to dream after a period of inactivity.  This value is also known as the
user activity timeout period since the screen isn't necessarily turned off
when it expires.

 This value is bounded by maximum timeout set by DevicePolicyManager.setMaximumTimeToLock(ComponentName, long). 
/**
         * The amount of time in milliseconds before the device goes to sleep or begins
         * to dream after a period of inactivity.  This value is also known as the
         * user activity timeout period since the screen isn't necessarily turned off
         * when it expires.
         *
         * <p>
         * This value is bounded by maximum timeout set by
         * {@link android.app.admin.DevicePolicyManager#setMaximumTimeToLock(ComponentName, long)}.
         */
        public static final String SCREEN_OFF_TIMEOUT = "screen_off_timeout";

        private static final Validator SCREEN_OFF_TIMEOUT_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
The screen backlight brightness between 0 and 255.

/**
         * The screen backlight brightness between 0 and 255.
         */
        public static final String SCREEN_BRIGHTNESS = "screen_brightness";

        
The screen backlight brightness between 0 and 255.

@hide
/**
         * The screen backlight brightness between 0 and 255.
         * @hide
         */
        public static final String SCREEN_BRIGHTNESS_FOR_VR = "screen_brightness_for_vr";

        private static final Validator SCREEN_BRIGHTNESS_FOR_VR_VALIDATOR =
                new SettingsValidators.InclusiveIntegerRangeValidator(0, 255);

        
Control whether to enable automatic brightness mode.

/**
         * Control whether to enable automatic brightness mode.
         */
        public static final String SCREEN_BRIGHTNESS_MODE = "screen_brightness_mode";

        private static final Validator SCREEN_BRIGHTNESS_MODE_VALIDATOR = BOOLEAN_VALIDATOR;

        
Adjustment to auto-brightness to make it generally more (>0.0 <1.0)
or less (<0.0 >-1.0) bright.

@hide
/**
         * Adjustment to auto-brightness to make it generally more (>0.0 <1.0)
         * or less (<0.0 >-1.0) bright.
         * @hide
         */
        public static final String SCREEN_AUTO_BRIGHTNESS_ADJ = "screen_auto_brightness_adj";

        private static final Validator SCREEN_AUTO_BRIGHTNESS_ADJ_VALIDATOR =
                new SettingsValidators.InclusiveFloatRangeValidator(-1, 1);

        
SCREEN_BRIGHTNESS_MODE value for manual mode.

/**
         * SCREEN_BRIGHTNESS_MODE value for manual mode.
         */
        public static final int SCREEN_BRIGHTNESS_MODE_MANUAL = 0;

        
SCREEN_BRIGHTNESS_MODE value for automatic mode.

/**
         * SCREEN_BRIGHTNESS_MODE value for automatic mode.
         */
        public static final int SCREEN_BRIGHTNESS_MODE_AUTOMATIC = 1;

        
Control whether the process CPU usage meter should be shown.

Deprecated:This functionality is no longer available as of VERSION_CODES.N_MR1.
/**
         * Control whether the process CPU usage meter should be shown.
         *
         * @deprecated This functionality is no longer available as of
         * {@link android.os.Build.VERSION_CODES#N_MR1}.
         */
        @Deprecated
        public static final String SHOW_PROCESSES = Global.SHOW_PROCESSES;

        
If 1, the activity manager will aggressively finish activities and
processes as soon as they are no longer needed.  If 0, the normal
extended lifetime is used.

Deprecated:Use Global.ALWAYS_FINISH_ACTIVITIES instead
/**
         * If 1, the activity manager will aggressively finish activities and
         * processes as soon as they are no longer needed.  If 0, the normal
         * extended lifetime is used.
         *
         * @deprecated Use {@link Global#ALWAYS_FINISH_ACTIVITIES} instead
         */
        @Deprecated
        public static final String ALWAYS_FINISH_ACTIVITIES = Global.ALWAYS_FINISH_ACTIVITIES;

        
Determines which streams are affected by ringer and zen mode changes. The
stream type's bit should be set to 1 if it should be muted when going
into an inaudible ringer mode.

/**
         * Determines which streams are affected by ringer and zen mode changes. The
         * stream type's bit should be set to 1 if it should be muted when going
         * into an inaudible ringer mode.
         */
        public static final String MODE_RINGER_STREAMS_AFFECTED = "mode_ringer_streams_affected";

        private static final Validator MODE_RINGER_STREAMS_AFFECTED_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
Determines which streams are affected by mute. The
stream type's bit should be set to 1 if it should be muted when a mute request
is received.

/**
          * Determines which streams are affected by mute. The
          * stream type's bit should be set to 1 if it should be muted when a mute request
          * is received.
          */
        public static final String MUTE_STREAMS_AFFECTED = "mute_streams_affected";

        private static final Validator MUTE_STREAMS_AFFECTED_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
Whether vibrate is on for different events. This is used internally,
changing this value will not change the vibrate. See AudioManager.

/**
         * Whether vibrate is on for different events. This is used internally,
         * changing this value will not change the vibrate. See AudioManager.
         */
        public static final String VIBRATE_ON = "vibrate_on";

        private static final Validator VIBRATE_ON_VALIDATOR = BOOLEAN_VALIDATOR;

        
If 1, redirects the system vibrator to all currently attached input devices
that support vibration.  If there are no such input devices, then the system
vibrator is used instead.
If 0, does not register the system vibrator.
This setting is mainly intended to provide a compatibility mechanism for
applications that only know about the system vibrator and do not use the
input device vibrator API.

@hide
/**
         * If 1, redirects the system vibrator to all currently attached input devices
         * that support vibration.  If there are no such input devices, then the system
         * vibrator is used instead.
         * If 0, does not register the system vibrator.
         *
         * This setting is mainly intended to provide a compatibility mechanism for
         * applications that only know about the system vibrator and do not use the
         * input device vibrator API.
         *
         * @hide
         */
        public static final String VIBRATE_INPUT_DEVICES = "vibrate_input_devices";

        private static final Validator VIBRATE_INPUT_DEVICES_VALIDATOR = BOOLEAN_VALIDATOR;

        
The intensity of notification vibrations, if configurable.
Not all devices are capable of changing their vibration intensity; on these devices
there will likely be no difference between the various vibration intensities except for
intensity 0 (off) and the rest.
Values:

0 - Vibration is disabled

1 - Weak vibrations

2 - Medium vibrations

3 - Strong vibrations

@hide
/**
         * The intensity of notification vibrations, if configurable.
         *
         * Not all devices are capable of changing their vibration intensity; on these devices
         * there will likely be no difference between the various vibration intensities except for
         * intensity 0 (off) and the rest.
         *
         * <b>Values:</b><br/>
         * 0 - Vibration is disabled<br/>
         * 1 - Weak vibrations<br/>
         * 2 - Medium vibrations<br/>
         * 3 - Strong vibrations
         * @hide
         */
        public static final String NOTIFICATION_VIBRATION_INTENSITY =
                "notification_vibration_intensity";

        
The intensity of haptic feedback vibrations, if configurable.
Not all devices are capable of changing their feedback intensity; on these devices
there will likely be no difference between the various vibration intensities except for
intensity 0 (off) and the rest.
Values:

0 - Vibration is disabled

1 - Weak vibrations

2 - Medium vibrations

3 - Strong vibrations

@hide
/**
         * The intensity of haptic feedback vibrations, if configurable.
         *
         * Not all devices are capable of changing their feedback intensity; on these devices
         * there will likely be no difference between the various vibration intensities except for
         * intensity 0 (off) and the rest.
         *
         * <b>Values:</b><br/>
         * 0 - Vibration is disabled<br/>
         * 1 - Weak vibrations<br/>
         * 2 - Medium vibrations<br/>
         * 3 - Strong vibrations
         * @hide
         */
        public static final String HAPTIC_FEEDBACK_INTENSITY =
                "haptic_feedback_intensity";

        private static final Validator VIBRATION_INTENSITY_VALIDATOR =
                new SettingsValidators.InclusiveIntegerRangeValidator(0, 3);

        
Ringer volume. This is used internally, changing this value will not
change the volume. See AudioManager.

@removedNot used by anything since API 2.
/**
         * Ringer volume. This is used internally, changing this value will not
         * change the volume. See AudioManager.
         *
         * @removed Not used by anything since API 2.
         */
        public static final String VOLUME_RING = "volume_ring";

        
System/notifications volume. This is used internally, changing this
value will not change the volume. See AudioManager.

@removedNot used by anything since API 2.
/**
         * System/notifications volume. This is used internally, changing this
         * value will not change the volume. See AudioManager.
         *
         * @removed Not used by anything since API 2.
         */
        public static final String VOLUME_SYSTEM = "volume_system";

        
Voice call volume. This is used internally, changing this value will
not change the volume. See AudioManager.

@removedNot used by anything since API 2.
/**
         * Voice call volume. This is used internally, changing this value will
         * not change the volume. See AudioManager.
         *
         * @removed Not used by anything since API 2.
         */
        public static final String VOLUME_VOICE = "volume_voice";

        
Music/media/gaming volume. This is used internally, changing this
value will not change the volume. See AudioManager.

@removedNot used by anything since API 2.
/**
         * Music/media/gaming volume. This is used internally, changing this
         * value will not change the volume. See AudioManager.
         *
         * @removed Not used by anything since API 2.
         */
        public static final String VOLUME_MUSIC = "volume_music";

        
Alarm volume. This is used internally, changing this
value will not change the volume. See AudioManager.

@removedNot used by anything since API 2.
/**
         * Alarm volume. This is used internally, changing this
         * value will not change the volume. See AudioManager.
         *
         * @removed Not used by anything since API 2.
         */
        public static final String VOLUME_ALARM = "volume_alarm";

        
Notification volume. This is used internally, changing this
value will not change the volume. See AudioManager.

@removedNot used by anything since API 2.
/**
         * Notification volume. This is used internally, changing this
         * value will not change the volume. See AudioManager.
         *
         * @removed Not used by anything since API 2.
         */
        public static final String VOLUME_NOTIFICATION = "volume_notification";

        
Bluetooth Headset volume. This is used internally, changing this value will
not change the volume. See AudioManager.

@removedNot used by anything since API 2.
/**
         * Bluetooth Headset volume. This is used internally, changing this value will
         * not change the volume. See AudioManager.
         *
         * @removed Not used by anything since API 2.
         */
        public static final String VOLUME_BLUETOOTH_SCO = "volume_bluetooth_sco";

        
@hide
Acessibility volume. This is used internally, changing this
value will not change the volume.
/**
         * @hide
         * Acessibility volume. This is used internally, changing this
         * value will not change the volume.
         */
        public static final String VOLUME_ACCESSIBILITY = "volume_a11y";

        
Master volume (float in the range 0.0f to 1.0f).

@hide
/**
         * Master volume (float in the range 0.0f to 1.0f).
         *
         * @hide
         */
        public static final String VOLUME_MASTER = "volume_master";

        
Master mono (int 1 = mono, 0 = normal).

@hide
/**
         * Master mono (int 1 = mono, 0 = normal).
         *
         * @hide
         */
        public static final String MASTER_MONO = "master_mono";

        private static final Validator MASTER_MONO_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether the notifications should use the ring volume (value of 1) or
a separate notification volume (value of 0). In most cases, users
will have this enabled so the notification and ringer volumes will be
the same. However, power users can disable this and use the separate
notification volume control.


Note: This is a one-off setting that will be removed in the future
when there is profile support. For this reason, it is kept hidden
from the public APIs.

@hide
Deprecated:
/**
         * Whether the notifications should use the ring volume (value of 1) or
         * a separate notification volume (value of 0). In most cases, users
         * will have this enabled so the notification and ringer volumes will be
         * the same. However, power users can disable this and use the separate
         * notification volume control.
         * <p>
         * Note: This is a one-off setting that will be removed in the future
         * when there is profile support. For this reason, it is kept hidden
         * from the public APIs.
         *
         * @hide
         * @deprecated
         */
        @Deprecated
        public static final String NOTIFICATIONS_USE_RING_VOLUME =
            "notifications_use_ring_volume";

        private static final Validator NOTIFICATIONS_USE_RING_VOLUME_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether silent mode should allow vibration feedback. This is used
internally in AudioService and the Sound settings activity to
coordinate decoupling of vibrate and silent modes. This setting
will likely be removed in a future release with support for
audio/vibe feedback profiles.
Not used anymore. On devices with vibrator, the user explicitly selects
silent or vibrate mode.
Kept for use by legacy database upgrade code in DatabaseHelper.

@hide
/**
         * Whether silent mode should allow vibration feedback. This is used
         * internally in AudioService and the Sound settings activity to
         * coordinate decoupling of vibrate and silent modes. This setting
         * will likely be removed in a future release with support for
         * audio/vibe feedback profiles.
         *
         * Not used anymore. On devices with vibrator, the user explicitly selects
         * silent or vibrate mode.
         * Kept for use by legacy database upgrade code in DatabaseHelper.
         * @hide
         */
        public static final String VIBRATE_IN_SILENT = "vibrate_in_silent";

        private static final Validator VIBRATE_IN_SILENT_VALIDATOR = BOOLEAN_VALIDATOR;

        
The mapping of stream type (integer) to its setting.

@removed Not used by anything since API 2.
/**
         * The mapping of stream type (integer) to its setting.
         *
         * @removed  Not used by anything since API 2.
         */
        public static final String[] VOLUME_SETTINGS = {
            VOLUME_VOICE, VOLUME_SYSTEM, VOLUME_RING, VOLUME_MUSIC,
            VOLUME_ALARM, VOLUME_NOTIFICATION, VOLUME_BLUETOOTH_SCO
        };

        
@hide
The mapping of stream type (integer) to its setting.
Unlike the VOLUME_SETTINGS array, this one contains as many entries as
AudioSystem.NUM_STREAM_TYPES, and has empty strings for stream types whose volumes
are never persisted.
/**
         * @hide
         * The mapping of stream type (integer) to its setting.
         * Unlike the VOLUME_SETTINGS array, this one contains as many entries as
         * AudioSystem.NUM_STREAM_TYPES, and has empty strings for stream types whose volumes
         * are never persisted.
         */
        public static final String[] VOLUME_SETTINGS_INT = {
                VOLUME_VOICE, VOLUME_SYSTEM, VOLUME_RING, VOLUME_MUSIC,
                VOLUME_ALARM, VOLUME_NOTIFICATION, VOLUME_BLUETOOTH_SCO,
                "" /*STREAM_SYSTEM_ENFORCED, no setting for this stream*/,
                "" /*STREAM_DTMF, no setting for this stream*/,
                "" /*STREAM_TTS, no setting for this stream*/,
                VOLUME_ACCESSIBILITY
            };

        
Appended to various volume related settings to record the previous
values before they the settings were affected by a silent/vibrate
ringer mode change.

@removed Not used by anything since API 2.
/**
         * Appended to various volume related settings to record the previous
         * values before they the settings were affected by a silent/vibrate
         * ringer mode change.
         *
         * @removed  Not used by anything since API 2.
         */
        public static final String APPEND_FOR_LAST_AUDIBLE = "_last_audible";

        
Persistent store for the system-wide default ringtone URI.

 If you need to play the default ringtone at any given time, it is recommended you give DEFAULT_RINGTONE_URI to the media player. It will resolve to the set default ringtone at the time of playing. 
See Also:
/**
         * Persistent store for the system-wide default ringtone URI.
         * <p>
         * If you need to play the default ringtone at any given time, it is recommended
         * you give {@link #DEFAULT_RINGTONE_URI} to the media player.  It will resolve
         * to the set default ringtone at the time of playing.
         *
         * @see #DEFAULT_RINGTONE_URI
         */
        public static final String RINGTONE = "ringtone";

        private static final Validator RINGTONE_VALIDATOR = URI_VALIDATOR;

        
A Uri that will point to the current default ringtone at any given time. 

If the current default ringtone is in the DRM provider and the caller
does not have permission, the exception will be a
FileNotFoundException.

/**
         * A {@link Uri} that will point to the current default ringtone at any
         * given time.
         * <p>
         * If the current default ringtone is in the DRM provider and the caller
         * does not have permission, the exception will be a
         * FileNotFoundException.
         */
        public static final Uri DEFAULT_RINGTONE_URI = getUriFor(RINGTONE);

        
{@hide} 
/** {@hide} */
        public static final String RINGTONE_CACHE = "ringtone_cache";
        
{@hide} 
/** {@hide} */
        public static final Uri RINGTONE_CACHE_URI = getUriFor(RINGTONE_CACHE);

        
Persistent store for the system-wide default notification sound.

See Also:
/**
         * Persistent store for the system-wide default notification sound.
         *
         * @see #RINGTONE
         * @see #DEFAULT_NOTIFICATION_URI
         */
        public static final String NOTIFICATION_SOUND = "notification_sound";

        private static final Validator NOTIFICATION_SOUND_VALIDATOR = URI_VALIDATOR;

        
A Uri that will point to the current default notification sound at any given time. 
See Also:
/**
         * A {@link Uri} that will point to the current default notification
         * sound at any given time.
         *
         * @see #DEFAULT_RINGTONE_URI
         */
        public static final Uri DEFAULT_NOTIFICATION_URI = getUriFor(NOTIFICATION_SOUND);

        
{@hide} 
/** {@hide} */
        public static final String NOTIFICATION_SOUND_CACHE = "notification_sound_cache";
        
{@hide} 
/** {@hide} */
        public static final Uri NOTIFICATION_SOUND_CACHE_URI = getUriFor(NOTIFICATION_SOUND_CACHE);

        
Persistent store for the system-wide default alarm alert.

See Also:
/**
         * Persistent store for the system-wide default alarm alert.
         *
         * @see #RINGTONE
         * @see #DEFAULT_ALARM_ALERT_URI
         */
        public static final String ALARM_ALERT = "alarm_alert";

        private static final Validator ALARM_ALERT_VALIDATOR = URI_VALIDATOR;

        
A Uri that will point to the current default alarm alert at any given time. 
See Also:
/**
         * A {@link Uri} that will point to the current default alarm alert at
         * any given time.
         *
         * @see #DEFAULT_ALARM_ALERT_URI
         */
        public static final Uri DEFAULT_ALARM_ALERT_URI = getUriFor(ALARM_ALERT);

        
{@hide} 
/** {@hide} */
        public static final String ALARM_ALERT_CACHE = "alarm_alert_cache";
        
{@hide} 
/** {@hide} */
        public static final Uri ALARM_ALERT_CACHE_URI = getUriFor(ALARM_ALERT_CACHE);

        
Persistent store for the system default media button event receiver.

@hide
/**
         * Persistent store for the system default media button event receiver.
         *
         * @hide
         */
        public static final String MEDIA_BUTTON_RECEIVER = "media_button_receiver";

        private static final Validator MEDIA_BUTTON_RECEIVER_VALIDATOR = COMPONENT_NAME_VALIDATOR;

        
Setting to enable Auto Replace (AutoText) in text editors. 1 = On, 0 = Off

/**
         * Setting to enable Auto Replace (AutoText) in text editors. 1 = On, 0 = Off
         */
        public static final String TEXT_AUTO_REPLACE = "auto_replace";

        private static final Validator TEXT_AUTO_REPLACE_VALIDATOR = BOOLEAN_VALIDATOR;

        
Setting to enable Auto Caps in text editors. 1 = On, 0 = Off

/**
         * Setting to enable Auto Caps in text editors. 1 = On, 0 = Off
         */
        public static final String TEXT_AUTO_CAPS = "auto_caps";

        private static final Validator TEXT_AUTO_CAPS_VALIDATOR = BOOLEAN_VALIDATOR;

        
Setting to enable Auto Punctuate in text editors. 1 = On, 0 = Off. This
feature converts two spaces to a "." and space.

/**
         * Setting to enable Auto Punctuate in text editors. 1 = On, 0 = Off. This
         * feature converts two spaces to a "." and space.
         */
        public static final String TEXT_AUTO_PUNCTUATE = "auto_punctuate";

        private static final Validator TEXT_AUTO_PUNCTUATE_VALIDATOR = BOOLEAN_VALIDATOR;

        
Setting to showing password characters in text editors. 1 = On, 0 = Off

/**
         * Setting to showing password characters in text editors. 1 = On, 0 = Off
         */
        public static final String TEXT_SHOW_PASSWORD = "show_password";

        private static final Validator TEXT_SHOW_PASSWORD_VALIDATOR = BOOLEAN_VALIDATOR;

        public static final String SHOW_GTALK_SERVICE_STATUS =
                "SHOW_GTALK_SERVICE_STATUS";

        private static final Validator SHOW_GTALK_SERVICE_STATUS_VALIDATOR = BOOLEAN_VALIDATOR;

        
Name of activity to use for wallpaper on the home screen.

Deprecated:Use WallpaperManager instead.
/**
         * Name of activity to use for wallpaper on the home screen.
         *
         * @deprecated Use {@link WallpaperManager} instead.
         */
        @Deprecated
        public static final String WALLPAPER_ACTIVITY = "wallpaper_activity";

        private static final Validator WALLPAPER_ACTIVITY_VALIDATOR = new Validator() {
            private static final int MAX_LENGTH = 1000;

            @Override
            public boolean validate(String value) {
                if (value != null && value.length() > MAX_LENGTH) {
                    return false;
                }
                return ComponentName.unflattenFromString(value) != null;
            }
        };

        
Deprecated:Use Global.AUTO_TIME instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#AUTO_TIME}
         * instead
         */
        @Deprecated
        public static final String AUTO_TIME = Global.AUTO_TIME;

        private static final Validator AUTO_TIME_VALIDATOR = BOOLEAN_VALIDATOR;

        
Deprecated:Use Global.AUTO_TIME_ZONE instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#AUTO_TIME_ZONE}
         * instead
         */
        @Deprecated
        public static final String AUTO_TIME_ZONE = Global.AUTO_TIME_ZONE;

        private static final Validator AUTO_TIME_ZONE_VALIDATOR = BOOLEAN_VALIDATOR;

        
Display times as 12 or 24 hours
  12
  24

/**
         * Display times as 12 or 24 hours
         *   12
         *   24
         */
        public static final String TIME_12_24 = "time_12_24";

        
@hide
/** @hide */
        public static final Validator TIME_12_24_VALIDATOR =
                new SettingsValidators.DiscreteValueValidator(new String[] {"12", "24", null});

        
Date format string
  mm/dd/yyyy
  dd/mm/yyyy
  yyyy/mm/dd

/**
         * Date format string
         *   mm/dd/yyyy
         *   dd/mm/yyyy
         *   yyyy/mm/dd
         */
        public static final String DATE_FORMAT = "date_format";

        
@hide
/** @hide */
        public static final Validator DATE_FORMAT_VALIDATOR = new Validator() {
            @Override
            public boolean validate(@Nullable String value) {
                try {
                    new SimpleDateFormat(value);
                    return true;
                } catch (IllegalArgumentException | NullPointerException e) {
                    return false;
                }
            }
        };

        
Whether the setup wizard has been run before (on first boot), or if
it still needs to be run.
nonzero = it has been run in the past
0 = it has not been run in the past

/**
         * Whether the setup wizard has been run before (on first boot), or if
         * it still needs to be run.
         *
         * nonzero = it has been run in the past
         * 0 = it has not been run in the past
         */
        public static final String SETUP_WIZARD_HAS_RUN = "setup_wizard_has_run";

        
@hide
/** @hide */
        public static final Validator SETUP_WIZARD_HAS_RUN_VALIDATOR = BOOLEAN_VALIDATOR;

        
Scaling factor for normal window animations. Setting to 0 will disable window
animations.

Deprecated:Use Global.WINDOW_ANIMATION_SCALE instead
/**
         * Scaling factor for normal window animations. Setting to 0 will disable window
         * animations.
         *
         * @deprecated Use {@link Global#WINDOW_ANIMATION_SCALE} instead
         */
        @Deprecated
        public static final String WINDOW_ANIMATION_SCALE = Global.WINDOW_ANIMATION_SCALE;

        
Scaling factor for activity transition animations. Setting to 0 will disable window
animations.

Deprecated:Use Global.TRANSITION_ANIMATION_SCALE instead
/**
         * Scaling factor for activity transition animations. Setting to 0 will disable window
         * animations.
         *
         * @deprecated Use {@link Global#TRANSITION_ANIMATION_SCALE} instead
         */
        @Deprecated
        public static final String TRANSITION_ANIMATION_SCALE = Global.TRANSITION_ANIMATION_SCALE;

        
Scaling factor for Animator-based animations. This affects both the start delay and
duration of all such animations. Setting to 0 will cause animations to end immediately.
The default value is 1.

Deprecated:Use Global.ANIMATOR_DURATION_SCALE instead
/**
         * Scaling factor for Animator-based animations. This affects both the start delay and
         * duration of all such animations. Setting to 0 will cause animations to end immediately.
         * The default value is 1.
         *
         * @deprecated Use {@link Global#ANIMATOR_DURATION_SCALE} instead
         */
        @Deprecated
        public static final String ANIMATOR_DURATION_SCALE = Global.ANIMATOR_DURATION_SCALE;

        
Control whether the accelerometer will be used to change screen
orientation.  If 0, it will not be used unless explicitly requested
by the application; if 1, it will be used by default unless explicitly
disabled by the application.

/**
         * Control whether the accelerometer will be used to change screen
         * orientation.  If 0, it will not be used unless explicitly requested
         * by the application; if 1, it will be used by default unless explicitly
         * disabled by the application.
         */
        public static final String ACCELEROMETER_ROTATION = "accelerometer_rotation";

        
@hide
/** @hide */
        public static final Validator ACCELEROMETER_ROTATION_VALIDATOR = BOOLEAN_VALIDATOR;

        
Default screen rotation when no other policy applies. When ACCELEROMETER_ROTATION is zero and no on-screen Activity expresses a preference, this rotation value will be used. Must be one of the Surface rotation constants. 
See Also:
/**
         * Default screen rotation when no other policy applies.
         * When {@link #ACCELEROMETER_ROTATION} is zero and no on-screen Activity expresses a
         * preference, this rotation value will be used. Must be one of the
         * {@link android.view.Surface#ROTATION_0 Surface rotation constants}.
         *
         * @see android.view.Display#getRotation
         */
        public static final String USER_ROTATION = "user_rotation";

        
@hide
/** @hide */
        public static final Validator USER_ROTATION_VALIDATOR =
                new SettingsValidators.InclusiveIntegerRangeValidator(0, 3);

        
Control whether the rotation lock toggle in the System UI should be hidden.
Typically this is done for accessibility purposes to make it harder for
the user to accidentally toggle the rotation lock while the display rotation
has been locked for accessibility.
If 0, then rotation lock toggle is not hidden for accessibility (although it may be
unavailable for other reasons).  If 1, then the rotation lock toggle is hidden.

@hide
/**
         * Control whether the rotation lock toggle in the System UI should be hidden.
         * Typically this is done for accessibility purposes to make it harder for
         * the user to accidentally toggle the rotation lock while the display rotation
         * has been locked for accessibility.
         *
         * If 0, then rotation lock toggle is not hidden for accessibility (although it may be
         * unavailable for other reasons).  If 1, then the rotation lock toggle is hidden.
         *
         * @hide
         */
        public static final String HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY =
                "hide_rotation_lock_toggle_for_accessibility";

        
@hide
/** @hide */
        public static final Validator HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Whether the phone vibrates when it is ringing due to an incoming call. This will
be used by Phone and Setting apps; it shouldn't affect other apps.
The value is boolean (1 or 0).
Note: this is not same as "vibrate on ring", which had been available until ICS.
It was about AudioManager's setting and thus affected all the applications which
relied on the setting, while this is purely about the vibration setting for incoming
calls.

/**
         * Whether the phone vibrates when it is ringing due to an incoming call. This will
         * be used by Phone and Setting apps; it shouldn't affect other apps.
         * The value is boolean (1 or 0).
         *
         * Note: this is not same as "vibrate on ring", which had been available until ICS.
         * It was about AudioManager's setting and thus affected all the applications which
         * relied on the setting, while this is purely about the vibration setting for incoming
         * calls.
         */
        public static final String VIBRATE_WHEN_RINGING = "vibrate_when_ringing";

        
@hide
/** @hide */
        public static final Validator VIBRATE_WHEN_RINGING_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether the audible DTMF tones are played by the dialer when dialing. The value is
boolean (1 or 0).

/**
         * Whether the audible DTMF tones are played by the dialer when dialing. The value is
         * boolean (1 or 0).
         */
        public static final String DTMF_TONE_WHEN_DIALING = "dtmf_tone";

        
@hide
/** @hide */
        public static final Validator DTMF_TONE_WHEN_DIALING_VALIDATOR = BOOLEAN_VALIDATOR;

        
CDMA only settings
DTMF tone type played by the dialer when dialing.
                0 = Normal
                1 = Long

/**
         * CDMA only settings
         * DTMF tone type played by the dialer when dialing.
         *                 0 = Normal
         *                 1 = Long
         */
        public static final String DTMF_TONE_TYPE_WHEN_DIALING = "dtmf_tone_type";

        
@hide
/** @hide */
        public static final Validator DTMF_TONE_TYPE_WHEN_DIALING_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether the hearing aid is enabled. The value is
boolean (1 or 0).

@hide
/**
         * Whether the hearing aid is enabled. The value is
         * boolean (1 or 0).
         * @hide
         */
        public static final String HEARING_AID = "hearing_aid";

        
@hide
/** @hide */
        public static final Validator HEARING_AID_VALIDATOR = BOOLEAN_VALIDATOR;

        
CDMA only settings
TTY Mode
0 = OFF
1 = FULL
2 = VCO
3 = HCO

@hide
/**
         * CDMA only settings
         * TTY Mode
         * 0 = OFF
         * 1 = FULL
         * 2 = VCO
         * 3 = HCO
         * @hide
         */
        public static final String TTY_MODE = "tty_mode";

        
@hide
/** @hide */
        public static final Validator TTY_MODE_VALIDATOR =
                new SettingsValidators.InclusiveIntegerRangeValidator(0, 3);

        
Whether the sounds effects (key clicks, lid open ...) are enabled. The value is
boolean (1 or 0).

/**
         * Whether the sounds effects (key clicks, lid open ...) are enabled. The value is
         * boolean (1 or 0).
         */
        public static final String SOUND_EFFECTS_ENABLED = "sound_effects_enabled";

        
@hide
/** @hide */
        public static final Validator SOUND_EFFECTS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether haptic feedback (Vibrate on tap) is enabled. The value is
boolean (1 or 0).

/**
         * Whether haptic feedback (Vibrate on tap) is enabled. The value is
         * boolean (1 or 0).
         */
        public static final String HAPTIC_FEEDBACK_ENABLED = "haptic_feedback_enabled";

        
@hide
/** @hide */
        public static final Validator HAPTIC_FEEDBACK_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Deprecated:Each application that shows web suggestions should have its own
setting for this.
/**
         * @deprecated Each application that shows web suggestions should have its own
         * setting for this.
         */
        @Deprecated
        public static final String SHOW_WEB_SUGGESTIONS = "show_web_suggestions";

        
@hide
/** @hide */
        public static final Validator SHOW_WEB_SUGGESTIONS_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether the notification LED should repeatedly flash when a notification is
pending. The value is boolean (1 or 0).

@hide
/**
         * Whether the notification LED should repeatedly flash when a notification is
         * pending. The value is boolean (1 or 0).
         * @hide
         */
        public static final String NOTIFICATION_LIGHT_PULSE = "notification_light_pulse";

        
@hide
/** @hide */
        public static final Validator NOTIFICATION_LIGHT_PULSE_VALIDATOR = BOOLEAN_VALIDATOR;

        
Show pointer location on screen?
0 = no
1 = yes

@hide
/**
         * Show pointer location on screen?
         * 0 = no
         * 1 = yes
         * @hide
         */
        public static final String POINTER_LOCATION = "pointer_location";

        
@hide
/** @hide */
        public static final Validator POINTER_LOCATION_VALIDATOR = BOOLEAN_VALIDATOR;

        
Show touch positions on screen?
0 = no
1 = yes

@hide
/**
         * Show touch positions on screen?
         * 0 = no
         * 1 = yes
         * @hide
         */
        public static final String SHOW_TOUCHES = "show_touches";

        
@hide
/** @hide */
        public static final Validator SHOW_TOUCHES_VALIDATOR = BOOLEAN_VALIDATOR;

        
Log raw orientation data from WindowOrientationListener for use with the orientationplot.py tool. 0 = no 1 = yes 
@hide
/**
         * Log raw orientation data from
         * {@link com.android.server.policy.WindowOrientationListener} for use with the
         * orientationplot.py tool.
         * 0 = no
         * 1 = yes
         * @hide
         */
        public static final String WINDOW_ORIENTATION_LISTENER_LOG =
                "window_orientation_listener_log";

        
@hide
/** @hide */
        public static final Validator WINDOW_ORIENTATION_LISTENER_LOG_VALIDATOR = BOOLEAN_VALIDATOR;

        
Deprecated:Use Global.POWER_SOUNDS_ENABLED instead
@hide
/**
         * @deprecated Use {@link android.provider.Settings.Global#POWER_SOUNDS_ENABLED}
         * instead
         * @hide
         */
        @Deprecated
        public static final String POWER_SOUNDS_ENABLED = Global.POWER_SOUNDS_ENABLED;

        private static final Validator POWER_SOUNDS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Deprecated:Use Global.DOCK_SOUNDS_ENABLED instead
@hide
/**
         * @deprecated Use {@link android.provider.Settings.Global#DOCK_SOUNDS_ENABLED}
         * instead
         * @hide
         */
        @Deprecated
        public static final String DOCK_SOUNDS_ENABLED = Global.DOCK_SOUNDS_ENABLED;

        private static final Validator DOCK_SOUNDS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether to play sounds when the keyguard is shown and dismissed.

@hide
/**
         * Whether to play sounds when the keyguard is shown and dismissed.
         * @hide
         */
        public static final String LOCKSCREEN_SOUNDS_ENABLED = "lockscreen_sounds_enabled";

        
@hide
/** @hide */
        public static final Validator LOCKSCREEN_SOUNDS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether the lockscreen should be completely disabled.

@hide
/**
         * Whether the lockscreen should be completely disabled.
         * @hide
         */
        public static final String LOCKSCREEN_DISABLED = "lockscreen.disabled";

        
@hide
/** @hide */
        public static final Validator LOCKSCREEN_DISABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Deprecated:Use Global.LOW_BATTERY_SOUND instead
@hide
/**
         * @deprecated Use {@link android.provider.Settings.Global#LOW_BATTERY_SOUND}
         * instead
         * @hide
         */
        @Deprecated
        public static final String LOW_BATTERY_SOUND = Global.LOW_BATTERY_SOUND;

        
Deprecated:Use Global.DESK_DOCK_SOUND instead
@hide
/**
         * @deprecated Use {@link android.provider.Settings.Global#DESK_DOCK_SOUND}
         * instead
         * @hide
         */
        @Deprecated
        public static final String DESK_DOCK_SOUND = Global.DESK_DOCK_SOUND;

        
Deprecated:Use Global.DESK_UNDOCK_SOUND instead
@hide
/**
         * @deprecated Use {@link android.provider.Settings.Global#DESK_UNDOCK_SOUND}
         * instead
         * @hide
         */
        @Deprecated
        public static final String DESK_UNDOCK_SOUND = Global.DESK_UNDOCK_SOUND;

        
Deprecated:Use Global.CAR_DOCK_SOUND instead
@hide
/**
         * @deprecated Use {@link android.provider.Settings.Global#CAR_DOCK_SOUND}
         * instead
         * @hide
         */
        @Deprecated
        public static final String CAR_DOCK_SOUND = Global.CAR_DOCK_SOUND;

        
Deprecated:Use Global.CAR_UNDOCK_SOUND instead
@hide
/**
         * @deprecated Use {@link android.provider.Settings.Global#CAR_UNDOCK_SOUND}
         * instead
         * @hide
         */
        @Deprecated
        public static final String CAR_UNDOCK_SOUND = Global.CAR_UNDOCK_SOUND;

        
Deprecated:Use Global.LOCK_SOUND instead
@hide
/**
         * @deprecated Use {@link android.provider.Settings.Global#LOCK_SOUND}
         * instead
         * @hide
         */
        @Deprecated
        public static final String LOCK_SOUND = Global.LOCK_SOUND;

        
Deprecated:Use Global.UNLOCK_SOUND instead
@hide
/**
         * @deprecated Use {@link android.provider.Settings.Global#UNLOCK_SOUND}
         * instead
         * @hide
         */
        @Deprecated
        public static final String UNLOCK_SOUND = Global.UNLOCK_SOUND;

        
Receive incoming SIP calls?
0 = no
1 = yes

@hide
/**
         * Receive incoming SIP calls?
         * 0 = no
         * 1 = yes
         * @hide
         */
        public static final String SIP_RECEIVE_CALLS = "sip_receive_calls";

        
@hide
/** @hide */
        public static final Validator SIP_RECEIVE_CALLS_VALIDATOR = BOOLEAN_VALIDATOR;

        
Call Preference String.
"SIP_ALWAYS" : Always use SIP with network access
"SIP_ADDRESS_ONLY" : Only if destination is a SIP address

@hide
/**
         * Call Preference String.
         * "SIP_ALWAYS" : Always use SIP with network access
         * "SIP_ADDRESS_ONLY" : Only if destination is a SIP address
         * @hide
         */
        public static final String SIP_CALL_OPTIONS = "sip_call_options";

        
@hide
/** @hide */
        public static final Validator SIP_CALL_OPTIONS_VALIDATOR =
                new SettingsValidators.DiscreteValueValidator(
                        new String[] {"SIP_ALWAYS", "SIP_ADDRESS_ONLY"});

        
One of the sip call options: Always use SIP with network access.

@hide
/**
         * One of the sip call options: Always use SIP with network access.
         * @hide
         */
        public static final String SIP_ALWAYS = "SIP_ALWAYS";

        
@hide
/** @hide */
        public static final Validator SIP_ALWAYS_VALIDATOR = BOOLEAN_VALIDATOR;

        
One of the sip call options: Only if destination is a SIP address.

@hide
/**
         * One of the sip call options: Only if destination is a SIP address.
         * @hide
         */
        public static final String SIP_ADDRESS_ONLY = "SIP_ADDRESS_ONLY";

        
@hide
/** @hide */
        public static final Validator SIP_ADDRESS_ONLY_VALIDATOR = BOOLEAN_VALIDATOR;

        
Deprecated:Use SIP_ALWAYS or SIP_ADDRESS_ONLY instead. Formerly used to indicate that the user should be prompted each time a call is made whether it should be placed using SIP. The DatabaseHelper replaces this with SIP_ADDRESS_ONLY.
@hide
/**
         * @deprecated Use SIP_ALWAYS or SIP_ADDRESS_ONLY instead.  Formerly used to indicate that
         * the user should be prompted each time a call is made whether it should be placed using
         * SIP.  The {@link com.android.providers.settings.DatabaseHelper} replaces this with
         * SIP_ADDRESS_ONLY.
         * @hide
         */
        @Deprecated
        public static final String SIP_ASK_ME_EACH_TIME = "SIP_ASK_ME_EACH_TIME";

        
@hide
/** @hide */
        public static final Validator SIP_ASK_ME_EACH_TIME_VALIDATOR = BOOLEAN_VALIDATOR;

        
Pointer speed setting.
This is an integer value in a range between -7 and +7, so there are 15 possible values.
  -7 = slowest
   0 = default speed
  +7 = fastest

@hide
/**
         * Pointer speed setting.
         * This is an integer value in a range between -7 and +7, so there are 15 possible values.
         *   -7 = slowest
         *    0 = default speed
         *   +7 = fastest
         * @hide
         */
        public static final String POINTER_SPEED = "pointer_speed";

        
@hide
/** @hide */
        public static final Validator POINTER_SPEED_VALIDATOR =
                new SettingsValidators.InclusiveFloatRangeValidator(-7, 7);

        
Whether lock-to-app will be triggered by long-press on recents.

@hide
/**
         * Whether lock-to-app will be triggered by long-press on recents.
         * @hide
         */
        public static final String LOCK_TO_APP_ENABLED = "lock_to_app_enabled";

        
@hide
/** @hide */
        public static final Validator LOCK_TO_APP_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
I am the lolrus.


Nonzero values indicate that the user has a bukkit.
Backward-compatible with PrefGetPreference(prefAllowEasterEggs).

@hide
/**
         * I am the lolrus.
         * <p>
         * Nonzero values indicate that the user has a bukkit.
         * Backward-compatible with <code>PrefGetPreference(prefAllowEasterEggs)</code>.
         * @hide
         */
        public static final String EGG_MODE = "egg_mode";

        
@hide
/** @hide */
        public static final Validator EGG_MODE_VALIDATOR = new Validator() {
            @Override
            public boolean validate(@Nullable String value) {
                try {
                    return Long.parseLong(value) >= 0;
                } catch (NumberFormatException e) {
                    return false;
                }
            }
        };

        
Setting to determine whether or not to show the battery percentage in the status bar.
   0 - Don't show percentage
   1 - Show percentage

@hide
/**
         * Setting to determine whether or not to show the battery percentage in the status bar.
         *    0 - Don't show percentage
         *    1 - Show percentage
         * @hide
         */
        public static final String SHOW_BATTERY_PERCENT = "status_bar_show_battery_percent";

        
@hide
/** @hide */
        private static final Validator SHOW_BATTERY_PERCENT_VALIDATOR = BOOLEAN_VALIDATOR;

        /**
         * IMPORTANT: If you add a new public settings you also have to add it to
         * PUBLIC_SETTINGS below. If the new setting is hidden you have to add
         * it to PRIVATE_SETTINGS below. Also add a validator that can validate
         * the setting value. See an example above.
         */

        
Settings to backup. This is here so that it's in the same place as the settings
keys and easy to update.
NOTE: Settings are backed up and restored in the order they appear
      in this array. If you have one setting depending on another,
      make sure that they are ordered appropriately.

@hide
/**
         * Settings to backup. This is here so that it's in the same place as the settings
         * keys and easy to update.
         *
         * NOTE: Settings are backed up and restored in the order they appear
         *       in this array. If you have one setting depending on another,
         *       make sure that they are ordered appropriately.
         *
         * @hide
         */
        public static final String[] SETTINGS_TO_BACKUP = {
            STAY_ON_WHILE_PLUGGED_IN,   // moved to global
            WIFI_USE_STATIC_IP,
            WIFI_STATIC_IP,
            WIFI_STATIC_GATEWAY,
            WIFI_STATIC_NETMASK,
            WIFI_STATIC_DNS1,
            WIFI_STATIC_DNS2,
            BLUETOOTH_DISCOVERABILITY,
            BLUETOOTH_DISCOVERABILITY_TIMEOUT,
            FONT_SCALE,
            DIM_SCREEN,
            SCREEN_OFF_TIMEOUT,
            SCREEN_BRIGHTNESS_MODE,
            SCREEN_AUTO_BRIGHTNESS_ADJ,
            SCREEN_BRIGHTNESS_FOR_VR,
            VIBRATE_INPUT_DEVICES,
            MODE_RINGER_STREAMS_AFFECTED,
            TEXT_AUTO_REPLACE,
            TEXT_AUTO_CAPS,
            TEXT_AUTO_PUNCTUATE,
            TEXT_SHOW_PASSWORD,
            AUTO_TIME,                  // moved to global
            AUTO_TIME_ZONE,             // moved to global
            TIME_12_24,
            DATE_FORMAT,
            DTMF_TONE_WHEN_DIALING,
            DTMF_TONE_TYPE_WHEN_DIALING,
            HEARING_AID,
            TTY_MODE,
            MASTER_MONO,
            SOUND_EFFECTS_ENABLED,
            HAPTIC_FEEDBACK_ENABLED,
            POWER_SOUNDS_ENABLED,       // moved to global
            DOCK_SOUNDS_ENABLED,        // moved to global
            LOCKSCREEN_SOUNDS_ENABLED,
            SHOW_WEB_SUGGESTIONS,
            SIP_CALL_OPTIONS,
            SIP_RECEIVE_CALLS,
            POINTER_SPEED,
            VIBRATE_WHEN_RINGING,
            RINGTONE,
            LOCK_TO_APP_ENABLED,
            NOTIFICATION_SOUND,
            ACCELEROMETER_ROTATION,
            SHOW_BATTERY_PERCENT,
            NOTIFICATION_VIBRATION_INTENSITY,
            HAPTIC_FEEDBACK_INTENSITY,
            DISPLAY_COLOR_MODE,
            NOTIFICATION_LIGHT_PULSE,
        };

        
Keys we no longer back up under the current schema, but want to continue to process when restoring historical backup datasets. All settings in LEGACY_RESTORE_SETTINGS array *must* have a non-null validator, otherwise they won't be restored. 
@hide
/**
         * Keys we no longer back up under the current schema, but want to continue to
         * process when restoring historical backup datasets.
         *
         * All settings in {@link LEGACY_RESTORE_SETTINGS} array *must* have a non-null validator,
         * otherwise they won't be restored.
         *
         * @hide
         */
        public static final String[] LEGACY_RESTORE_SETTINGS = {
        };

        
These are all public system settings

@hide
/**
         * These are all public system settings
         *
         * @hide
         */
        public static final Set<String> PUBLIC_SETTINGS = new ArraySet<>();
        static {
            PUBLIC_SETTINGS.add(END_BUTTON_BEHAVIOR);
            PUBLIC_SETTINGS.add(WIFI_USE_STATIC_IP);
            PUBLIC_SETTINGS.add(WIFI_STATIC_IP);
            PUBLIC_SETTINGS.add(WIFI_STATIC_GATEWAY);
            PUBLIC_SETTINGS.add(WIFI_STATIC_NETMASK);
            PUBLIC_SETTINGS.add(WIFI_STATIC_DNS1);
            PUBLIC_SETTINGS.add(WIFI_STATIC_DNS2);
            PUBLIC_SETTINGS.add(BLUETOOTH_DISCOVERABILITY);
            PUBLIC_SETTINGS.add(BLUETOOTH_DISCOVERABILITY_TIMEOUT);
            PUBLIC_SETTINGS.add(NEXT_ALARM_FORMATTED);
            PUBLIC_SETTINGS.add(FONT_SCALE);
            PUBLIC_SETTINGS.add(DIM_SCREEN);
            PUBLIC_SETTINGS.add(SCREEN_OFF_TIMEOUT);
            PUBLIC_SETTINGS.add(SCREEN_BRIGHTNESS);
            PUBLIC_SETTINGS.add(SCREEN_BRIGHTNESS_FOR_VR);
            PUBLIC_SETTINGS.add(SCREEN_BRIGHTNESS_MODE);
            PUBLIC_SETTINGS.add(MODE_RINGER_STREAMS_AFFECTED);
            PUBLIC_SETTINGS.add(MUTE_STREAMS_AFFECTED);
            PUBLIC_SETTINGS.add(VIBRATE_ON);
            PUBLIC_SETTINGS.add(VOLUME_RING);
            PUBLIC_SETTINGS.add(VOLUME_SYSTEM);
            PUBLIC_SETTINGS.add(VOLUME_VOICE);
            PUBLIC_SETTINGS.add(VOLUME_MUSIC);
            PUBLIC_SETTINGS.add(VOLUME_ALARM);
            PUBLIC_SETTINGS.add(VOLUME_NOTIFICATION);
            PUBLIC_SETTINGS.add(VOLUME_BLUETOOTH_SCO);
            PUBLIC_SETTINGS.add(RINGTONE);
            PUBLIC_SETTINGS.add(NOTIFICATION_SOUND);
            PUBLIC_SETTINGS.add(ALARM_ALERT);
            PUBLIC_SETTINGS.add(TEXT_AUTO_REPLACE);
            PUBLIC_SETTINGS.add(TEXT_AUTO_CAPS);
            PUBLIC_SETTINGS.add(TEXT_AUTO_PUNCTUATE);
            PUBLIC_SETTINGS.add(TEXT_SHOW_PASSWORD);
            PUBLIC_SETTINGS.add(SHOW_GTALK_SERVICE_STATUS);
            PUBLIC_SETTINGS.add(WALLPAPER_ACTIVITY);
            PUBLIC_SETTINGS.add(TIME_12_24);
            PUBLIC_SETTINGS.add(DATE_FORMAT);
            PUBLIC_SETTINGS.add(SETUP_WIZARD_HAS_RUN);
            PUBLIC_SETTINGS.add(ACCELEROMETER_ROTATION);
            PUBLIC_SETTINGS.add(USER_ROTATION);
            PUBLIC_SETTINGS.add(DTMF_TONE_WHEN_DIALING);
            PUBLIC_SETTINGS.add(SOUND_EFFECTS_ENABLED);
            PUBLIC_SETTINGS.add(HAPTIC_FEEDBACK_ENABLED);
            PUBLIC_SETTINGS.add(SHOW_WEB_SUGGESTIONS);
            PUBLIC_SETTINGS.add(VIBRATE_WHEN_RINGING);
        }

        
These are all hidden system settings.

@hide
/**
         * These are all hidden system settings.
         *
         * @hide
         */
        public static final Set<String> PRIVATE_SETTINGS = new ArraySet<>();
        static {
            PRIVATE_SETTINGS.add(WIFI_USE_STATIC_IP);
            PRIVATE_SETTINGS.add(END_BUTTON_BEHAVIOR);
            PRIVATE_SETTINGS.add(ADVANCED_SETTINGS);
            PRIVATE_SETTINGS.add(SCREEN_AUTO_BRIGHTNESS_ADJ);
            PRIVATE_SETTINGS.add(VIBRATE_INPUT_DEVICES);
            PRIVATE_SETTINGS.add(VOLUME_MASTER);
            PRIVATE_SETTINGS.add(MASTER_MONO);
            PRIVATE_SETTINGS.add(NOTIFICATIONS_USE_RING_VOLUME);
            PRIVATE_SETTINGS.add(VIBRATE_IN_SILENT);
            PRIVATE_SETTINGS.add(MEDIA_BUTTON_RECEIVER);
            PRIVATE_SETTINGS.add(HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY);
            PRIVATE_SETTINGS.add(DTMF_TONE_TYPE_WHEN_DIALING);
            PRIVATE_SETTINGS.add(HEARING_AID);
            PRIVATE_SETTINGS.add(TTY_MODE);
            PRIVATE_SETTINGS.add(NOTIFICATION_LIGHT_PULSE);
            PRIVATE_SETTINGS.add(POINTER_LOCATION);
            PRIVATE_SETTINGS.add(SHOW_TOUCHES);
            PRIVATE_SETTINGS.add(WINDOW_ORIENTATION_LISTENER_LOG);
            PRIVATE_SETTINGS.add(POWER_SOUNDS_ENABLED);
            PRIVATE_SETTINGS.add(DOCK_SOUNDS_ENABLED);
            PRIVATE_SETTINGS.add(LOCKSCREEN_SOUNDS_ENABLED);
            PRIVATE_SETTINGS.add(LOCKSCREEN_DISABLED);
            PRIVATE_SETTINGS.add(LOW_BATTERY_SOUND);
            PRIVATE_SETTINGS.add(DESK_DOCK_SOUND);
            PRIVATE_SETTINGS.add(DESK_UNDOCK_SOUND);
            PRIVATE_SETTINGS.add(CAR_DOCK_SOUND);
            PRIVATE_SETTINGS.add(CAR_UNDOCK_SOUND);
            PRIVATE_SETTINGS.add(LOCK_SOUND);
            PRIVATE_SETTINGS.add(UNLOCK_SOUND);
            PRIVATE_SETTINGS.add(SIP_RECEIVE_CALLS);
            PRIVATE_SETTINGS.add(SIP_CALL_OPTIONS);
            PRIVATE_SETTINGS.add(SIP_ALWAYS);
            PRIVATE_SETTINGS.add(SIP_ADDRESS_ONLY);
            PRIVATE_SETTINGS.add(SIP_ASK_ME_EACH_TIME);
            PRIVATE_SETTINGS.add(POINTER_SPEED);
            PRIVATE_SETTINGS.add(LOCK_TO_APP_ENABLED);
            PRIVATE_SETTINGS.add(EGG_MODE);
            PRIVATE_SETTINGS.add(SHOW_BATTERY_PERCENT);
            PRIVATE_SETTINGS.add(DISPLAY_COLOR_MODE);
        }

        
These are all public system settings All settings in SETTINGS_TO_BACKUP array *must* have a non-null validator, otherwise they won't be restored. 
@hide
/**
         * These are all public system settings
         *
         * All settings in {@link SETTINGS_TO_BACKUP} array *must* have a non-null validator,
         * otherwise they won't be restored.
         *
         * @hide
         */
        public static final Map<String, Validator> VALIDATORS = new ArrayMap<>();
        static {
            VALIDATORS.put(STAY_ON_WHILE_PLUGGED_IN, STAY_ON_WHILE_PLUGGED_IN_VALIDATOR);
            VALIDATORS.put(END_BUTTON_BEHAVIOR, END_BUTTON_BEHAVIOR_VALIDATOR);
            VALIDATORS.put(WIFI_USE_STATIC_IP, WIFI_USE_STATIC_IP_VALIDATOR);
            VALIDATORS.put(BLUETOOTH_DISCOVERABILITY, BLUETOOTH_DISCOVERABILITY_VALIDATOR);
            VALIDATORS.put(BLUETOOTH_DISCOVERABILITY_TIMEOUT,
                    BLUETOOTH_DISCOVERABILITY_TIMEOUT_VALIDATOR);
            VALIDATORS.put(NEXT_ALARM_FORMATTED, NEXT_ALARM_FORMATTED_VALIDATOR);
            VALIDATORS.put(FONT_SCALE, FONT_SCALE_VALIDATOR);
            VALIDATORS.put(DIM_SCREEN, DIM_SCREEN_VALIDATOR);
            VALIDATORS.put(DISPLAY_COLOR_MODE, DISPLAY_COLOR_MODE_VALIDATOR);
            VALIDATORS.put(SCREEN_OFF_TIMEOUT, SCREEN_OFF_TIMEOUT_VALIDATOR);
            VALIDATORS.put(SCREEN_BRIGHTNESS_FOR_VR, SCREEN_BRIGHTNESS_FOR_VR_VALIDATOR);
            VALIDATORS.put(SCREEN_BRIGHTNESS_MODE, SCREEN_BRIGHTNESS_MODE_VALIDATOR);
            VALIDATORS.put(MODE_RINGER_STREAMS_AFFECTED, MODE_RINGER_STREAMS_AFFECTED_VALIDATOR);
            VALIDATORS.put(MUTE_STREAMS_AFFECTED, MUTE_STREAMS_AFFECTED_VALIDATOR);
            VALIDATORS.put(VIBRATE_ON, VIBRATE_ON_VALIDATOR);
            VALIDATORS.put(NOTIFICATION_VIBRATION_INTENSITY, VIBRATION_INTENSITY_VALIDATOR);
            VALIDATORS.put(HAPTIC_FEEDBACK_INTENSITY, VIBRATION_INTENSITY_VALIDATOR);
            VALIDATORS.put(RINGTONE, RINGTONE_VALIDATOR);
            VALIDATORS.put(NOTIFICATION_SOUND, NOTIFICATION_SOUND_VALIDATOR);
            VALIDATORS.put(ALARM_ALERT, ALARM_ALERT_VALIDATOR);
            VALIDATORS.put(TEXT_AUTO_REPLACE, TEXT_AUTO_REPLACE_VALIDATOR);
            VALIDATORS.put(TEXT_AUTO_CAPS, TEXT_AUTO_CAPS_VALIDATOR);
            VALIDATORS.put(TEXT_AUTO_PUNCTUATE, TEXT_AUTO_PUNCTUATE_VALIDATOR);
            VALIDATORS.put(TEXT_SHOW_PASSWORD, TEXT_SHOW_PASSWORD_VALIDATOR);
            VALIDATORS.put(AUTO_TIME, AUTO_TIME_VALIDATOR);
            VALIDATORS.put(AUTO_TIME_ZONE, AUTO_TIME_ZONE_VALIDATOR);
            VALIDATORS.put(SHOW_GTALK_SERVICE_STATUS, SHOW_GTALK_SERVICE_STATUS_VALIDATOR);
            VALIDATORS.put(WALLPAPER_ACTIVITY, WALLPAPER_ACTIVITY_VALIDATOR);
            VALIDATORS.put(TIME_12_24, TIME_12_24_VALIDATOR);
            VALIDATORS.put(DATE_FORMAT, DATE_FORMAT_VALIDATOR);
            VALIDATORS.put(SETUP_WIZARD_HAS_RUN, SETUP_WIZARD_HAS_RUN_VALIDATOR);
            VALIDATORS.put(ACCELEROMETER_ROTATION, ACCELEROMETER_ROTATION_VALIDATOR);
            VALIDATORS.put(USER_ROTATION, USER_ROTATION_VALIDATOR);
            VALIDATORS.put(DTMF_TONE_WHEN_DIALING, DTMF_TONE_WHEN_DIALING_VALIDATOR);
            VALIDATORS.put(SOUND_EFFECTS_ENABLED, SOUND_EFFECTS_ENABLED_VALIDATOR);
            VALIDATORS.put(HAPTIC_FEEDBACK_ENABLED, HAPTIC_FEEDBACK_ENABLED_VALIDATOR);
            VALIDATORS.put(POWER_SOUNDS_ENABLED, POWER_SOUNDS_ENABLED_VALIDATOR);
            VALIDATORS.put(DOCK_SOUNDS_ENABLED, DOCK_SOUNDS_ENABLED_VALIDATOR);
            VALIDATORS.put(SHOW_WEB_SUGGESTIONS, SHOW_WEB_SUGGESTIONS_VALIDATOR);
            VALIDATORS.put(WIFI_USE_STATIC_IP, WIFI_USE_STATIC_IP_VALIDATOR);
            VALIDATORS.put(END_BUTTON_BEHAVIOR, END_BUTTON_BEHAVIOR_VALIDATOR);
            VALIDATORS.put(ADVANCED_SETTINGS, ADVANCED_SETTINGS_VALIDATOR);
            VALIDATORS.put(SCREEN_AUTO_BRIGHTNESS_ADJ, SCREEN_AUTO_BRIGHTNESS_ADJ_VALIDATOR);
            VALIDATORS.put(VIBRATE_INPUT_DEVICES, VIBRATE_INPUT_DEVICES_VALIDATOR);
            VALIDATORS.put(MASTER_MONO, MASTER_MONO_VALIDATOR);
            VALIDATORS.put(NOTIFICATIONS_USE_RING_VOLUME, NOTIFICATIONS_USE_RING_VOLUME_VALIDATOR);
            VALIDATORS.put(VIBRATE_IN_SILENT, VIBRATE_IN_SILENT_VALIDATOR);
            VALIDATORS.put(MEDIA_BUTTON_RECEIVER, MEDIA_BUTTON_RECEIVER_VALIDATOR);
            VALIDATORS.put(HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY,
                    HIDE_ROTATION_LOCK_TOGGLE_FOR_ACCESSIBILITY_VALIDATOR);
            VALIDATORS.put(VIBRATE_WHEN_RINGING, VIBRATE_WHEN_RINGING_VALIDATOR);
            VALIDATORS.put(DTMF_TONE_TYPE_WHEN_DIALING, DTMF_TONE_TYPE_WHEN_DIALING_VALIDATOR);
            VALIDATORS.put(HEARING_AID, HEARING_AID_VALIDATOR);
            VALIDATORS.put(TTY_MODE, TTY_MODE_VALIDATOR);
            VALIDATORS.put(NOTIFICATION_LIGHT_PULSE, NOTIFICATION_LIGHT_PULSE_VALIDATOR);
            VALIDATORS.put(POINTER_LOCATION, POINTER_LOCATION_VALIDATOR);
            VALIDATORS.put(SHOW_TOUCHES, SHOW_TOUCHES_VALIDATOR);
            VALIDATORS.put(WINDOW_ORIENTATION_LISTENER_LOG,
                    WINDOW_ORIENTATION_LISTENER_LOG_VALIDATOR);
            VALIDATORS.put(LOCKSCREEN_SOUNDS_ENABLED, LOCKSCREEN_SOUNDS_ENABLED_VALIDATOR);
            VALIDATORS.put(LOCKSCREEN_DISABLED, LOCKSCREEN_DISABLED_VALIDATOR);
            VALIDATORS.put(SIP_RECEIVE_CALLS, SIP_RECEIVE_CALLS_VALIDATOR);
            VALIDATORS.put(SIP_CALL_OPTIONS, SIP_CALL_OPTIONS_VALIDATOR);
            VALIDATORS.put(SIP_ALWAYS, SIP_ALWAYS_VALIDATOR);
            VALIDATORS.put(SIP_ADDRESS_ONLY, SIP_ADDRESS_ONLY_VALIDATOR);
            VALIDATORS.put(SIP_ASK_ME_EACH_TIME, SIP_ASK_ME_EACH_TIME_VALIDATOR);
            VALIDATORS.put(POINTER_SPEED, POINTER_SPEED_VALIDATOR);
            VALIDATORS.put(LOCK_TO_APP_ENABLED, LOCK_TO_APP_ENABLED_VALIDATOR);
            VALIDATORS.put(EGG_MODE, EGG_MODE_VALIDATOR);
            VALIDATORS.put(WIFI_STATIC_IP, WIFI_STATIC_IP_VALIDATOR);
            VALIDATORS.put(WIFI_STATIC_GATEWAY, WIFI_STATIC_GATEWAY_VALIDATOR);
            VALIDATORS.put(WIFI_STATIC_NETMASK, WIFI_STATIC_NETMASK_VALIDATOR);
            VALIDATORS.put(WIFI_STATIC_DNS1, WIFI_STATIC_DNS1_VALIDATOR);
            VALIDATORS.put(WIFI_STATIC_DNS2, WIFI_STATIC_DNS2_VALIDATOR);
            VALIDATORS.put(SHOW_BATTERY_PERCENT, SHOW_BATTERY_PERCENT_VALIDATOR);
            VALIDATORS.put(NOTIFICATION_LIGHT_PULSE, BOOLEAN_VALIDATOR);
        }

        
These entries are considered common between the personal and the managed profile,
since the managed profile doesn't get to change them.

/**
         * These entries are considered common between the personal and the managed profile,
         * since the managed profile doesn't get to change them.
         */
        private static final Set<String> CLONE_TO_MANAGED_PROFILE = new ArraySet<>();
        static {
            CLONE_TO_MANAGED_PROFILE.add(DATE_FORMAT);
            CLONE_TO_MANAGED_PROFILE.add(HAPTIC_FEEDBACK_ENABLED);
            CLONE_TO_MANAGED_PROFILE.add(SOUND_EFFECTS_ENABLED);
            CLONE_TO_MANAGED_PROFILE.add(TEXT_SHOW_PASSWORD);
            CLONE_TO_MANAGED_PROFILE.add(TIME_12_24);
        }

        
@hide
/** @hide */
        public static void getCloneToManagedProfileSettings(Set<String> outKeySet) {
            outKeySet.addAll(CLONE_TO_MANAGED_PROFILE);
        }

        
These entries should be cloned from this profile's parent only if the dependency's
value is true ("1")
Note: the dependencies must be Secure settings

@hide
/**
         * These entries should be cloned from this profile's parent only if the dependency's
         * value is true ("1")
         *
         * Note: the dependencies must be Secure settings
         *
         * @hide
         */
        public static final Map<String, String> CLONE_FROM_PARENT_ON_VALUE = new ArrayMap<>();
        static {
            CLONE_FROM_PARENT_ON_VALUE.put(RINGTONE, Secure.SYNC_PARENT_SOUNDS);
            CLONE_FROM_PARENT_ON_VALUE.put(NOTIFICATION_SOUND, Secure.SYNC_PARENT_SOUNDS);
            CLONE_FROM_PARENT_ON_VALUE.put(ALARM_ALERT, Secure.SYNC_PARENT_SOUNDS);
        }

        
@hide
/** @hide */
        public static void getCloneFromParentOnValueSettings(Map<String, String> outMap) {
            outMap.putAll(CLONE_FROM_PARENT_ON_VALUE);
        }

        
System settings which can be accessed by instant apps.

@hide
/**
         * System settings which can be accessed by instant apps.
         * @hide
         */
        public static final Set<String> INSTANT_APP_SETTINGS = new ArraySet<>();
        static {
            INSTANT_APP_SETTINGS.add(TEXT_AUTO_REPLACE);
            INSTANT_APP_SETTINGS.add(TEXT_AUTO_CAPS);
            INSTANT_APP_SETTINGS.add(TEXT_AUTO_PUNCTUATE);
            INSTANT_APP_SETTINGS.add(TEXT_SHOW_PASSWORD);
            INSTANT_APP_SETTINGS.add(DATE_FORMAT);
            INSTANT_APP_SETTINGS.add(FONT_SCALE);
            INSTANT_APP_SETTINGS.add(HAPTIC_FEEDBACK_ENABLED);
            INSTANT_APP_SETTINGS.add(TIME_12_24);
            INSTANT_APP_SETTINGS.add(SOUND_EFFECTS_ENABLED);
            INSTANT_APP_SETTINGS.add(ACCELEROMETER_ROTATION);
        }

        
When to use Wi-Fi calling

See Also:
  • WifiCallingChoices
@hide
/**
         * When to use Wi-Fi calling
         *
         * @see android.telephony.TelephonyManager.WifiCallingChoices
         * @hide
         */
        public static final String WHEN_TO_MAKE_WIFI_CALLS = "when_to_make_wifi_calls";

        // Settings moved to Settings.Secure

        
Deprecated:Use Global.ADB_ENABLED instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#ADB_ENABLED}
         * instead
         */
        @Deprecated
        public static final String ADB_ENABLED = Global.ADB_ENABLED;

        
Deprecated:Use Secure.ANDROID_ID instead
/**
         * @deprecated Use {@link android.provider.Settings.Secure#ANDROID_ID} instead
         */
        @Deprecated
        public static final String ANDROID_ID = Secure.ANDROID_ID;

        
Deprecated:Use Global.BLUETOOTH_ON instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#BLUETOOTH_ON} instead
         */
        @Deprecated
        public static final String BLUETOOTH_ON = Global.BLUETOOTH_ON;

        private static final Validator BLUETOOTH_ON_VALIDATOR = BOOLEAN_VALIDATOR;

        
Deprecated:Use Global.DATA_ROAMING instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#DATA_ROAMING} instead
         */
        @Deprecated
        public static final String DATA_ROAMING = Global.DATA_ROAMING;

        
Deprecated:Use Global.DEVICE_PROVISIONED instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#DEVICE_PROVISIONED} instead
         */
        @Deprecated
        public static final String DEVICE_PROVISIONED = Global.DEVICE_PROVISIONED;

        
Deprecated:Use Global.HTTP_PROXY instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#HTTP_PROXY} instead
         */
        @Deprecated
        public static final String HTTP_PROXY = Global.HTTP_PROXY;

        
Deprecated:Use Secure.INSTALL_NON_MARKET_APPS instead
/**
         * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
         */
        @Deprecated
        public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;

        
Deprecated:Use Secure.LOCATION_PROVIDERS_ALLOWED instead
/**
         * @deprecated Use {@link android.provider.Settings.Secure#LOCATION_PROVIDERS_ALLOWED}
         * instead
         */
        @Deprecated
        public static final String LOCATION_PROVIDERS_ALLOWED = Secure.LOCATION_PROVIDERS_ALLOWED;

        
Deprecated:Use Secure.LOGGING_ID instead
/**
         * @deprecated Use {@link android.provider.Settings.Secure#LOGGING_ID} instead
         */
        @Deprecated
        public static final String LOGGING_ID = Secure.LOGGING_ID;

        
Deprecated:Use Global.NETWORK_PREFERENCE instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#NETWORK_PREFERENCE} instead
         */
        @Deprecated
        public static final String NETWORK_PREFERENCE = Global.NETWORK_PREFERENCE;

        
Deprecated:Use Secure.PARENTAL_CONTROL_ENABLED instead
/**
         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_ENABLED}
         * instead
         */
        @Deprecated
        public static final String PARENTAL_CONTROL_ENABLED = Secure.PARENTAL_CONTROL_ENABLED;

        
Deprecated:Use Secure.PARENTAL_CONTROL_LAST_UPDATE instead
/**
         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_LAST_UPDATE}
         * instead
         */
        @Deprecated
        public static final String PARENTAL_CONTROL_LAST_UPDATE = Secure.PARENTAL_CONTROL_LAST_UPDATE;

        
Deprecated:Use Secure.PARENTAL_CONTROL_REDIRECT_URL instead
/**
         * @deprecated Use {@link android.provider.Settings.Secure#PARENTAL_CONTROL_REDIRECT_URL}
         * instead
         */
        @Deprecated
        public static final String PARENTAL_CONTROL_REDIRECT_URL =
            Secure.PARENTAL_CONTROL_REDIRECT_URL;

        
Deprecated:Use Secure.SETTINGS_CLASSNAME instead
/**
         * @deprecated Use {@link android.provider.Settings.Secure#SETTINGS_CLASSNAME} instead
         */
        @Deprecated
        public static final String SETTINGS_CLASSNAME = Secure.SETTINGS_CLASSNAME;

        
Deprecated:Use Global.USB_MASS_STORAGE_ENABLED instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#USB_MASS_STORAGE_ENABLED} instead
         */
        @Deprecated
        public static final String USB_MASS_STORAGE_ENABLED = Global.USB_MASS_STORAGE_ENABLED;

        private static final Validator USB_MASS_STORAGE_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Deprecated:Use Global.USE_GOOGLE_MAIL instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#USE_GOOGLE_MAIL} instead
         */
        @Deprecated
        public static final String USE_GOOGLE_MAIL = Global.USE_GOOGLE_MAIL;

       
Deprecated:Use Global.WIFI_MAX_DHCP_RETRY_COUNT instead
/**
         * @deprecated Use
         * {@link android.provider.Settings.Global#WIFI_MAX_DHCP_RETRY_COUNT} instead
         */
        @Deprecated
        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Global.WIFI_MAX_DHCP_RETRY_COUNT;

        
Deprecated:Use Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS instead
/**
         * @deprecated Use
         * {@link android.provider.Settings.Global#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
         */
        @Deprecated
        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
                Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;

        
Deprecated:Use Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON instead
/**
         * @deprecated Use
         * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON} instead
         */
        @Deprecated
        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
                Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;

        private static final Validator WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Deprecated:Use Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY instead
/**
         * @deprecated Use
         * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} instead
         */
        @Deprecated
        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
                Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;

        private static final Validator WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
Deprecated:Use Global.WIFI_NUM_OPEN_NETWORKS_KEPT instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NUM_OPEN_NETWORKS_KEPT}
         * instead
         */
        @Deprecated
        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = Global.WIFI_NUM_OPEN_NETWORKS_KEPT;

        private static final Validator WIFI_NUM_OPEN_NETWORKS_KEPT_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
Deprecated:Use Global.WIFI_ON instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#WIFI_ON} instead
         */
        @Deprecated
        public static final String WIFI_ON = Global.WIFI_ON;

        
Deprecated:Use Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE instead
/**
         * @deprecated Use
         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE}
         * instead
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
                Secure.WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE;

        
Deprecated:Use Secure.WIFI_WATCHDOG_AP_COUNT instead
/**
         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_AP_COUNT} instead
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_AP_COUNT = Secure.WIFI_WATCHDOG_AP_COUNT;

        
Deprecated:Use Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS instead
/**
         * @deprecated Use
         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS} instead
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS;

        
Deprecated:Use Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED instead
/**
         * @deprecated Use
         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED} instead
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED;

        
Deprecated:Use Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS instead
/**
         * @deprecated Use
         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS}
         * instead
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
                Secure.WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS;

        
Deprecated:Use Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT instead
/**
         * @deprecated Use
         * {@link android.provider.Settings.Secure#WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT} instead
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
            Secure.WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT;

        
Deprecated:Use Secure.WIFI_WATCHDOG_MAX_AP_CHECKS instead
/**
         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_MAX_AP_CHECKS}
         * instead
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = Secure.WIFI_WATCHDOG_MAX_AP_CHECKS;

        
Deprecated:Use Global.WIFI_WATCHDOG_ON instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#WIFI_WATCHDOG_ON} instead
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_ON = Global.WIFI_WATCHDOG_ON;

        
Deprecated:Use Secure.WIFI_WATCHDOG_PING_COUNT instead
/**
         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_COUNT} instead
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_PING_COUNT = Secure.WIFI_WATCHDOG_PING_COUNT;

        
Deprecated:Use Secure.WIFI_WATCHDOG_PING_DELAY_MS instead
/**
         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_DELAY_MS}
         * instead
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_PING_DELAY_MS = Secure.WIFI_WATCHDOG_PING_DELAY_MS;

        
Deprecated:Use Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS instead
/**
         * @deprecated Use {@link android.provider.Settings.Secure#WIFI_WATCHDOG_PING_TIMEOUT_MS}
         * instead
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS =
            Secure.WIFI_WATCHDOG_PING_TIMEOUT_MS;

        
Checks if the specified app can modify system settings. As of API level 23, an app cannot modify system settings unless it declares the WRITE_SETTINGS.WRITE_SETTINGS permission in its manifest, and the user specifically grants the app this capability. To prompt the user to grant this approval, the app must send an intent with the action Settings.ACTION_MANAGE_WRITE_SETTINGS, which causes the system to display a permission management screen. 
Params:
  • context – App context.
Returns:true if the calling app can write to system settings, false otherwise
/**
         * Checks if the specified app can modify system settings. As of API
         * level 23, an app cannot modify system settings unless it declares the
         * {@link android.Manifest.permission#WRITE_SETTINGS}
         * permission in its manifest, <em>and</em> the user specifically grants
         * the app this capability. To prompt the user to grant this approval,
         * the app must send an intent with the action {@link
         * android.provider.Settings#ACTION_MANAGE_WRITE_SETTINGS}, which causes
         * the system to display a permission management screen.
         *
         * @param context App context.
         * @return true if the calling app can write to system settings, false otherwise
         */
        public static boolean canWrite(Context context) {
            return isCallingPackageAllowedToWriteSettings(context, Process.myUid(),
                    context.getOpPackageName(), false);
        }
    }

    
Secure system settings, containing system preferences that applications
can read but are not allowed to write.  These are for preferences that
the user must explicitly modify through the system UI or specialized
APIs for those values, not modified directly by applications.

/**
     * Secure system settings, containing system preferences that applications
     * can read but are not allowed to write.  These are for preferences that
     * the user must explicitly modify through the system UI or specialized
     * APIs for those values, not modified directly by applications.
     */
    public static final class Secure extends NameValueTable {
        // NOTE: If you add new settings here, be sure to add them to
        // com.android.providers.settings.SettingsProtoDumpUtil#dumpProtoSecureSettingsLocked.

        
The content:// style URL for this table

/**
         * The content:// style URL for this table
         */
        public static final Uri CONTENT_URI =
            Uri.parse("content://" + AUTHORITY + "/secure");

        private static final ContentProviderHolder sProviderHolder =
                new ContentProviderHolder(CONTENT_URI);

        // Populated lazily, guarded by class object:
        private static final NameValueCache sNameValueCache = new NameValueCache(
                CONTENT_URI,
                CALL_METHOD_GET_SECURE,
                CALL_METHOD_PUT_SECURE,
                sProviderHolder);

        private static ILockSettings sLockSettings = null;

        private static boolean sIsSystemProcess;
        private static final HashSet<String> MOVED_TO_LOCK_SETTINGS;
        private static final HashSet<String> MOVED_TO_GLOBAL;
        static {
            MOVED_TO_LOCK_SETTINGS = new HashSet<>(3);
            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_ENABLED);
            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_VISIBLE);
            MOVED_TO_LOCK_SETTINGS.add(Secure.LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED);

            MOVED_TO_GLOBAL = new HashSet<>();
            MOVED_TO_GLOBAL.add(Settings.Global.ADB_ENABLED);
            MOVED_TO_GLOBAL.add(Settings.Global.ASSISTED_GPS_ENABLED);
            MOVED_TO_GLOBAL.add(Settings.Global.BLUETOOTH_ON);
            MOVED_TO_GLOBAL.add(Settings.Global.BUGREPORT_IN_POWER_MENU);
            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_CELL_BROADCAST_SMS);
            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_ROAMING_MODE);
            MOVED_TO_GLOBAL.add(Settings.Global.CDMA_SUBSCRIPTION_MODE);
            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE);
            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI);
            MOVED_TO_GLOBAL.add(Settings.Global.DATA_ROAMING);
            MOVED_TO_GLOBAL.add(Settings.Global.DEVELOPMENT_SETTINGS_ENABLED);
            MOVED_TO_GLOBAL.add(Settings.Global.DEVICE_PROVISIONED);
            MOVED_TO_GLOBAL.add(Settings.Global.DISPLAY_SIZE_FORCED);
            MOVED_TO_GLOBAL.add(Settings.Global.DOWNLOAD_MAX_BYTES_OVER_MOBILE);
            MOVED_TO_GLOBAL.add(Settings.Global.DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE);
            MOVED_TO_GLOBAL.add(Settings.Global.MOBILE_DATA);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_BUCKET_DURATION);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_DELETE_AGE);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_PERSIST_BYTES);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_DEV_ROTATE_AGE);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_ENABLED);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_GLOBAL_ALERT_BYTES);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_POLL_INTERVAL);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_SAMPLE_ENABLED);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_TIME_CACHE_MAX_AGE);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_BUCKET_DURATION);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_DELETE_AGE);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_PERSIST_BYTES);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_ROTATE_AGE);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_BUCKET_DURATION);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_DELETE_AGE);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_PERSIST_BYTES);
            MOVED_TO_GLOBAL.add(Settings.Global.NETSTATS_UID_TAG_ROTATE_AGE);
            MOVED_TO_GLOBAL.add(Settings.Global.NETWORK_PREFERENCE);
            MOVED_TO_GLOBAL.add(Settings.Global.NITZ_UPDATE_DIFF);
            MOVED_TO_GLOBAL.add(Settings.Global.NITZ_UPDATE_SPACING);
            MOVED_TO_GLOBAL.add(Settings.Global.NTP_SERVER);
            MOVED_TO_GLOBAL.add(Settings.Global.NTP_TIMEOUT);
            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_ERROR_POLL_COUNT);
            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_LONG_POLL_INTERVAL_MS);
            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT);
            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_POLL_INTERVAL_MS);
            MOVED_TO_GLOBAL.add(Settings.Global.PDP_WATCHDOG_TRIGGER_PACKET_COUNT);
            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DATA_SERVICE_URL);
            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DETECTION_REDIR_HOST);
            MOVED_TO_GLOBAL.add(Settings.Global.SETUP_PREPAID_DETECTION_TARGET_URL);
            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_DUN_APN);
            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_DUN_REQUIRED);
            MOVED_TO_GLOBAL.add(Settings.Global.TETHER_SUPPORTED);
            MOVED_TO_GLOBAL.add(Settings.Global.USB_MASS_STORAGE_ENABLED);
            MOVED_TO_GLOBAL.add(Settings.Global.USE_GOOGLE_MAIL);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_COUNTRY_CODE);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_FRAMEWORK_SCAN_INTERVAL_MS);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_FREQUENCY_BAND);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_IDLE_MS);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_MAX_DHCP_RETRY_COUNT);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NUM_OPEN_NETWORKS_KEPT);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_ON);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_P2P_DEVICE_NAME);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SAVED_STATE);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SUPPLICANT_SCAN_INTERVAL_MS);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_SUSPEND_OPTIMIZATIONS_ENABLED);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_VERBOSE_LOGGING_ENABLED);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_ENHANCED_AUTO_JOIN);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_NETWORK_SHOW_RSSI);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_WATCHDOG_ON);
            MOVED_TO_GLOBAL.add(Settings.Global.WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED);
            MOVED_TO_GLOBAL.add(Settings.Global.WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON);
            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_ENABLE);
            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_TIMEOUT);
            MOVED_TO_GLOBAL.add(Settings.Global.PACKAGE_VERIFIER_DEFAULT_RESPONSE);
            MOVED_TO_GLOBAL.add(Settings.Global.DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS);
            MOVED_TO_GLOBAL.add(Settings.Global.DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS);
            MOVED_TO_GLOBAL.add(Settings.Global.GPRS_REGISTER_CHECK_PERIOD_MS);
            MOVED_TO_GLOBAL.add(Settings.Global.WTF_IS_FATAL);
            MOVED_TO_GLOBAL.add(Settings.Global.BATTERY_DISCHARGE_DURATION_THRESHOLD);
            MOVED_TO_GLOBAL.add(Settings.Global.BATTERY_DISCHARGE_THRESHOLD);
            MOVED_TO_GLOBAL.add(Settings.Global.SEND_ACTION_APP_ERROR);
            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_AGE_SECONDS);
            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_MAX_FILES);
            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_QUOTA_KB);
            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_QUOTA_PERCENT);
            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_RESERVE_PERCENT);
            MOVED_TO_GLOBAL.add(Settings.Global.DROPBOX_TAG_PREFIX);
            MOVED_TO_GLOBAL.add(Settings.Global.ERROR_LOGCAT_PREFIX);
            MOVED_TO_GLOBAL.add(Settings.Global.SYS_FREE_STORAGE_LOG_INTERVAL);
            MOVED_TO_GLOBAL.add(Settings.Global.DISK_FREE_CHANGE_REPORTING_THRESHOLD);
            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_THRESHOLD_PERCENTAGE);
            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_THRESHOLD_MAX_BYTES);
            MOVED_TO_GLOBAL.add(Settings.Global.SYS_STORAGE_FULL_THRESHOLD_BYTES);
            MOVED_TO_GLOBAL.add(Settings.Global.SYNC_MAX_RETRY_DELAY_IN_SECONDS);
            MOVED_TO_GLOBAL.add(Settings.Global.CONNECTIVITY_CHANGE_DELAY);
            MOVED_TO_GLOBAL.add(Settings.Global.CAPTIVE_PORTAL_DETECTION_ENABLED);
            MOVED_TO_GLOBAL.add(Settings.Global.CAPTIVE_PORTAL_SERVER);
            MOVED_TO_GLOBAL.add(Settings.Global.NSD_ON);
            MOVED_TO_GLOBAL.add(Settings.Global.SET_INSTALL_LOCATION);
            MOVED_TO_GLOBAL.add(Settings.Global.DEFAULT_INSTALL_LOCATION);
            MOVED_TO_GLOBAL.add(Settings.Global.INET_CONDITION_DEBOUNCE_UP_DELAY);
            MOVED_TO_GLOBAL.add(Settings.Global.INET_CONDITION_DEBOUNCE_DOWN_DELAY);
            MOVED_TO_GLOBAL.add(Settings.Global.READ_EXTERNAL_STORAGE_ENFORCED_DEFAULT);
            MOVED_TO_GLOBAL.add(Settings.Global.HTTP_PROXY);
            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_HOST);
            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_PORT);
            MOVED_TO_GLOBAL.add(Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST);
            MOVED_TO_GLOBAL.add(Settings.Global.SET_GLOBAL_HTTP_PROXY);
            MOVED_TO_GLOBAL.add(Settings.Global.DEFAULT_DNS_SERVER);
            MOVED_TO_GLOBAL.add(Settings.Global.PREFERRED_NETWORK_MODE);
            MOVED_TO_GLOBAL.add(Settings.Global.WEBVIEW_DATA_REDUCTION_PROXY_KEY);
        }

        
@hide
/** @hide */
        public static void getMovedToGlobalSettings(Set<String> outKeySet) {
            outKeySet.addAll(MOVED_TO_GLOBAL);
        }

        
@hide
/** @hide */
        public static void clearProviderForTest() {
            sProviderHolder.clearProviderForTest();
            sNameValueCache.clearGenerationTrackerForTest();
        }

        
Look up a name in the database.

Params:
  • resolver – to access the database with
  • name – to look up in the table
Returns:the corresponding value, or null if not present
/**
         * Look up a name in the database.
         * @param resolver to access the database with
         * @param name to look up in the table
         * @return the corresponding value, or null if not present
         */
        public static String getString(ContentResolver resolver, String name) {
            return getStringForUser(resolver, name, resolver.getUserId());
        }

        
@hide
/** @hide */
        public static String getStringForUser(ContentResolver resolver, String name,
                int userHandle) {
            if (MOVED_TO_GLOBAL.contains(name)) {
                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
                        + " to android.provider.Settings.Global.");
                return Global.getStringForUser(resolver, name, userHandle);
            }

            if (MOVED_TO_LOCK_SETTINGS.contains(name)) {
                synchronized (Secure.class) {
                    if (sLockSettings == null) {
                        sLockSettings = ILockSettings.Stub.asInterface(
                                (IBinder) ServiceManager.getService("lock_settings"));
                        sIsSystemProcess = Process.myUid() == Process.SYSTEM_UID;
                    }
                }
                if (sLockSettings != null && !sIsSystemProcess) {
                    // No context; use the ActivityThread's context as an approximation for
                    // determining the target API level.
                    Application application = ActivityThread.currentApplication();

                    boolean isPreMnc = application != null
                            && application.getApplicationInfo() != null
                            && application.getApplicationInfo().targetSdkVersion
                            <= VERSION_CODES.LOLLIPOP_MR1;
                    if (isPreMnc) {
                        try {
                            return sLockSettings.getString(name, "0", userHandle);
                        } catch (RemoteException re) {
                            // Fall through
                        }
                    } else {
                        throw new SecurityException("Settings.Secure." + name
                                + " is deprecated and no longer accessible."
                                + " See API documentation for potential replacements.");
                    }
                }
            }

            return sNameValueCache.getStringForUser(resolver, name, userHandle);
        }

        
Store a name/value pair into the database.

Params:
  • resolver – to access the database with
  • name – to store
  • value – to associate with the name
Returns:true if the value was set, false on database errors
/**
         * Store a name/value pair into the database.
         * @param resolver to access the database with
         * @param name to store
         * @param value to associate with the name
         * @return true if the value was set, false on database errors
         */
        public static boolean putString(ContentResolver resolver, String name, String value) {
            return putStringForUser(resolver, name, value, resolver.getUserId());
        }

        
@hide
/** @hide */
        public static boolean putStringForUser(ContentResolver resolver, String name, String value,
                int userHandle) {
            return putStringForUser(resolver, name, value, null, false, userHandle);
        }

        
@hide
/** @hide */
        public static boolean putStringForUser(@NonNull ContentResolver resolver,
                @NonNull String name, @Nullable String value, @Nullable String tag,
                boolean makeDefault, @UserIdInt int userHandle) {
            if (LOCATION_MODE.equals(name)) {
                // Map LOCATION_MODE to underlying location provider storage API
                return setLocationModeForUser(resolver, Integer.parseInt(value), userHandle);
            }
            if (MOVED_TO_GLOBAL.contains(name)) {
                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
                        + " to android.provider.Settings.Global");
                return Global.putStringForUser(resolver, name, value,
                        tag, makeDefault, userHandle);
            }
            return sNameValueCache.putStringForUser(resolver, name, value, tag,
                    makeDefault, userHandle);
        }

        
Store a name/value pair into the database.

 The method takes an optional tag to associate with the setting which can be used to clear only settings made by your package and associated with this tag by passing the tag to resetToDefaults(ContentResolver, String). Anyone can override the current tag. Also if another package changes the setting then the tag will be set to the one specified in the set call which can be null. Also any of the settings setters that do not take a tag as an argument effectively clears the tag. 

For example, if you set settings A and B with tags T1 and T2 and
another app changes setting A (potentially to the same value), it
can assign to it a tag T3 (note that now the package that changed
the setting is not yours). Now if you reset your changes for T1 and
T2 only setting B will be reset and A not (as it was changed by
another package) but since A did not change you are in the desired
initial state. Now if the other app changes the value of A (assuming
you registered an observer in the beginning) you would detect that
the setting was changed by another app and handle this appropriately
(ignore, set back to some value, etc).


Also the method takes an argument whether to make the value the
default for this setting. If the system already specified a default
value, then the one passed in here will not
be set as the default.



Params:
  • resolver – to access the database with.
  • name – to store.
  • value – to associate with the name.
  • tag – to associate with the setting.
  • makeDefault – whether to make the value the default one.
See Also:
Returns:true if the value was set, false on database errors.
@hide
/**
         * Store a name/value pair into the database.
         * <p>
         * The method takes an optional tag to associate with the setting
         * which can be used to clear only settings made by your package and
         * associated with this tag by passing the tag to {@link
         * #resetToDefaults(ContentResolver, String)}. Anyone can override
         * the current tag. Also if another package changes the setting
         * then the tag will be set to the one specified in the set call
         * which can be null. Also any of the settings setters that do not
         * take a tag as an argument effectively clears the tag.
         * </p><p>
         * For example, if you set settings A and B with tags T1 and T2 and
         * another app changes setting A (potentially to the same value), it
         * can assign to it a tag T3 (note that now the package that changed
         * the setting is not yours). Now if you reset your changes for T1 and
         * T2 only setting B will be reset and A not (as it was changed by
         * another package) but since A did not change you are in the desired
         * initial state. Now if the other app changes the value of A (assuming
         * you registered an observer in the beginning) you would detect that
         * the setting was changed by another app and handle this appropriately
         * (ignore, set back to some value, etc).
         * </p><p>
         * Also the method takes an argument whether to make the value the
         * default for this setting. If the system already specified a default
         * value, then the one passed in here will <strong>not</strong>
         * be set as the default.
         * </p>
         *
         * @param resolver to access the database with.
         * @param name to store.
         * @param value to associate with the name.
         * @param tag to associate with the setting.
         * @param makeDefault whether to make the value the default one.
         * @return true if the value was set, false on database errors.
         *
         * @see #resetToDefaults(ContentResolver, String)
         *
         * @hide
         */
        @SystemApi
        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
        public static boolean putString(@NonNull ContentResolver resolver,
                @NonNull String name, @Nullable String value, @Nullable String tag,
                boolean makeDefault) {
            return putStringForUser(resolver, name, value, tag, makeDefault,
                    resolver.getUserId());
        }

        
Reset the settings to their defaults. This would reset only
settings set by the caller's package. Think of it of a way to undo your own
changes to the global settings. Passing in the optional tag will reset only
settings changed by your package and associated with this tag.

Params:
  • resolver – Handle to the content resolver.
  • tag – Optional tag which should be associated with the settings to reset.
See Also:
@hide
/**
         * Reset the settings to their defaults. This would reset <strong>only</strong>
         * settings set by the caller's package. Think of it of a way to undo your own
         * changes to the global settings. Passing in the optional tag will reset only
         * settings changed by your package and associated with this tag.
         *
         * @param resolver Handle to the content resolver.
         * @param tag Optional tag which should be associated with the settings to reset.
         *
         * @see #putString(ContentResolver, String, String, String, boolean)
         *
         * @hide
         */
        @SystemApi
        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
        public static void resetToDefaults(@NonNull ContentResolver resolver,
                @Nullable String tag) {
            resetToDefaultsAsUser(resolver, tag, RESET_MODE_PACKAGE_DEFAULTS,
                    resolver.getUserId());
        }

        
Reset the settings to their defaults for a given user with a specific mode. The optional tag argument is valid only for Settings.RESET_MODE_PACKAGE_DEFAULTS allowing resetting the settings made by a package and associated with the tag. 
Params:
  • resolver – Handle to the content resolver.
  • tag – Optional tag which should be associated with the settings to reset.
  • mode – The reset mode.
  • userHandle – The user for which to reset to defaults.
See Also:
@hide
/**
         *
         * Reset the settings to their defaults for a given user with a specific mode. The
         * optional tag argument is valid only for {@link #RESET_MODE_PACKAGE_DEFAULTS}
         * allowing resetting the settings made by a package and associated with the tag.
         *
         * @param resolver Handle to the content resolver.
         * @param tag Optional tag which should be associated with the settings to reset.
         * @param mode The reset mode.
         * @param userHandle The user for which to reset to defaults.
         *
         * @see #RESET_MODE_PACKAGE_DEFAULTS
         * @see #RESET_MODE_UNTRUSTED_DEFAULTS
         * @see #RESET_MODE_UNTRUSTED_CHANGES
         * @see #RESET_MODE_TRUSTED_DEFAULTS
         *
         * @hide
         */
        public static void resetToDefaultsAsUser(@NonNull ContentResolver resolver,
                @Nullable String tag, @ResetMode int mode, @IntRange(from = 0) int userHandle) {
            try {
                Bundle arg = new Bundle();
                arg.putInt(CALL_METHOD_USER_KEY, userHandle);
                if (tag != null) {
                    arg.putString(CALL_METHOD_TAG_KEY, tag);
                }
                arg.putInt(CALL_METHOD_RESET_MODE_KEY, mode);
                IContentProvider cp = sProviderHolder.getProvider(resolver);
                cp.call(resolver.getPackageName(), CALL_METHOD_RESET_SECURE, null, arg);
            } catch (RemoteException e) {
                Log.w(TAG, "Can't reset do defaults for " + CONTENT_URI, e);
            }
        }

        
Construct the content URI for a particular name/value pair,
useful for monitoring changes with a ContentObserver.

Params:
  • name – to look up in the table
Returns:the corresponding content URI, or null if not present
/**
         * Construct the content URI for a particular name/value pair,
         * useful for monitoring changes with a ContentObserver.
         * @param name to look up in the table
         * @return the corresponding content URI, or null if not present
         */
        public static Uri getUriFor(String name) {
            if (MOVED_TO_GLOBAL.contains(name)) {
                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Secure"
                        + " to android.provider.Settings.Global, returning global URI.");
                return Global.getUriFor(Global.CONTENT_URI, name);
            }
            return getUriFor(CONTENT_URI, name);
        }

        
Convenience function for retrieving a single secure settings value
as an integer.  Note that internally setting values are always
stored as strings; this function converts the string to an integer
for you.  The default value will be returned if the setting is
not defined or not an integer.

Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
  • def – Value to return if the setting is not defined.
Returns:The setting's current value, or 'def' if it is not defined
or not a valid integer.
/**
         * Convenience function for retrieving a single secure settings value
         * as an integer.  Note that internally setting values are always
         * stored as strings; this function converts the string to an integer
         * for you.  The default value will be returned if the setting is
         * not defined or not an integer.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         * @param def Value to return if the setting is not defined.
         *
         * @return The setting's current value, or 'def' if it is not defined
         * or not a valid integer.
         */
        public static int getInt(ContentResolver cr, String name, int def) {
            return getIntForUser(cr, name, def, cr.getUserId());
        }

        
@hide
/** @hide */
        public static int getIntForUser(ContentResolver cr, String name, int def, int userHandle) {
            if (LOCATION_MODE.equals(name)) {
                // Map from to underlying location provider storage API to location mode
                return getLocationModeForUser(cr, userHandle);
            }
            String v = getStringForUser(cr, name, userHandle);
            try {
                return v != null ? Integer.parseInt(v) : def;
            } catch (NumberFormatException e) {
                return def;
            }
        }

        
Convenience function for retrieving a single secure settings value
as an integer.  Note that internally setting values are always
stored as strings; this function converts the string to an integer
for you.

 This version does not take a default value. If the setting has not been set, or the string value is not a number, it throws SettingNotFoundException. 
Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
Throws:
  • SettingNotFoundException – Thrown if a setting by the given
name can't be found or the setting value is not an integer.
Returns:The setting's current value.
/**
         * Convenience function for retrieving a single secure settings value
         * as an integer.  Note that internally setting values are always
         * stored as strings; this function converts the string to an integer
         * for you.
         * <p>
         * This version does not take a default value.  If the setting has not
         * been set, or the string value is not a number,
         * it throws {@link SettingNotFoundException}.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         *
         * @throws SettingNotFoundException Thrown if a setting by the given
         * name can't be found or the setting value is not an integer.
         *
         * @return The setting's current value.
         */
        public static int getInt(ContentResolver cr, String name)
                throws SettingNotFoundException {
            return getIntForUser(cr, name, cr.getUserId());
        }

        
@hide
/** @hide */
        public static int getIntForUser(ContentResolver cr, String name, int userHandle)
                throws SettingNotFoundException {
            if (LOCATION_MODE.equals(name)) {
                // Map from to underlying location provider storage API to location mode
                return getLocationModeForUser(cr, userHandle);
            }
            String v = getStringForUser(cr, name, userHandle);
            try {
                return Integer.parseInt(v);
            } catch (NumberFormatException e) {
                throw new SettingNotFoundException(name);
            }
        }

        
Convenience function for updating a single settings value as an
integer. This will either create a new entry in the table if the
given name does not exist, or modify the value of the existing row
with that name.  Note that internally setting values are always
stored as strings, so this function converts the given value to a
string before storing it.

Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to modify.
  • value – The new value for the setting.
Returns:true if the value was set, false on database errors
/**
         * Convenience function for updating a single settings value as an
         * integer. This will either create a new entry in the table if the
         * given name does not exist, or modify the value of the existing row
         * with that name.  Note that internally setting values are always
         * stored as strings, so this function converts the given value to a
         * string before storing it.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to modify.
         * @param value The new value for the setting.
         * @return true if the value was set, false on database errors
         */
        public static boolean putInt(ContentResolver cr, String name, int value) {
            return putIntForUser(cr, name, value, cr.getUserId());
        }

        
@hide
/** @hide */
        public static boolean putIntForUser(ContentResolver cr, String name, int value,
                int userHandle) {
            return putStringForUser(cr, name, Integer.toString(value), userHandle);
        }

        
Convenience function for retrieving a single secure settings value as a long. Note that internally setting values are always stored as strings; this function converts the string to a long for you. The default value will be returned if the setting is not defined or not a long. 
Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
  • def – Value to return if the setting is not defined.
Returns:The setting's current value, or 'def' if it is not defined or not a valid long.
/**
         * Convenience function for retrieving a single secure settings value
         * as a {@code long}.  Note that internally setting values are always
         * stored as strings; this function converts the string to a {@code long}
         * for you.  The default value will be returned if the setting is
         * not defined or not a {@code long}.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         * @param def Value to return if the setting is not defined.
         *
         * @return The setting's current value, or 'def' if it is not defined
         * or not a valid {@code long}.
         */
        public static long getLong(ContentResolver cr, String name, long def) {
            return getLongForUser(cr, name, def, cr.getUserId());
        }

        
@hide
/** @hide */
        public static long getLongForUser(ContentResolver cr, String name, long def,
                int userHandle) {
            String valString = getStringForUser(cr, name, userHandle);
            long value;
            try {
                value = valString != null ? Long.parseLong(valString) : def;
            } catch (NumberFormatException e) {
                value = def;
            }
            return value;
        }

        
Convenience function for retrieving a single secure settings value as a long. Note that internally setting values are always stored as strings; this function converts the string to a long for you. 
 This version does not take a default value. If the setting has not been set, or the string value is not a number, it throws SettingNotFoundException. 
Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
Throws:
  • SettingNotFoundException – Thrown if a setting by the given
name can't be found or the setting value is not an integer.
Returns:The setting's current value.
/**
         * Convenience function for retrieving a single secure settings value
         * as a {@code long}.  Note that internally setting values are always
         * stored as strings; this function converts the string to a {@code long}
         * for you.
         * <p>
         * This version does not take a default value.  If the setting has not
         * been set, or the string value is not a number,
         * it throws {@link SettingNotFoundException}.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         *
         * @return The setting's current value.
         * @throws SettingNotFoundException Thrown if a setting by the given
         * name can't be found or the setting value is not an integer.
         */
        public static long getLong(ContentResolver cr, String name)
                throws SettingNotFoundException {
            return getLongForUser(cr, name, cr.getUserId());
        }

        
@hide
/** @hide */
        public static long getLongForUser(ContentResolver cr, String name, int userHandle)
                throws SettingNotFoundException {
            String valString = getStringForUser(cr, name, userHandle);
            try {
                return Long.parseLong(valString);
            } catch (NumberFormatException e) {
                throw new SettingNotFoundException(name);
            }
        }

        
Convenience function for updating a secure settings value as a long
integer. This will either create a new entry in the table if the
given name does not exist, or modify the value of the existing row
with that name.  Note that internally setting values are always
stored as strings, so this function converts the given value to a
string before storing it.

Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to modify.
  • value – The new value for the setting.
Returns:true if the value was set, false on database errors
/**
         * Convenience function for updating a secure settings value as a long
         * integer. This will either create a new entry in the table if the
         * given name does not exist, or modify the value of the existing row
         * with that name.  Note that internally setting values are always
         * stored as strings, so this function converts the given value to a
         * string before storing it.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to modify.
         * @param value The new value for the setting.
         * @return true if the value was set, false on database errors
         */
        public static boolean putLong(ContentResolver cr, String name, long value) {
            return putLongForUser(cr, name, value, cr.getUserId());
        }

        
@hide
/** @hide */
        public static boolean putLongForUser(ContentResolver cr, String name, long value,
                int userHandle) {
            return putStringForUser(cr, name, Long.toString(value), userHandle);
        }

        
Convenience function for retrieving a single secure settings value
as a floating point number.  Note that internally setting values are
always stored as strings; this function converts the string to an
float for you. The default value will be returned if the setting
is not defined or not a valid float.

Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
  • def – Value to return if the setting is not defined.
Returns:The setting's current value, or 'def' if it is not defined
or not a valid float.
/**
         * Convenience function for retrieving a single secure settings value
         * as a floating point number.  Note that internally setting values are
         * always stored as strings; this function converts the string to an
         * float for you. The default value will be returned if the setting
         * is not defined or not a valid float.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         * @param def Value to return if the setting is not defined.
         *
         * @return The setting's current value, or 'def' if it is not defined
         * or not a valid float.
         */
        public static float getFloat(ContentResolver cr, String name, float def) {
            return getFloatForUser(cr, name, def, cr.getUserId());
        }

        
@hide
/** @hide */
        public static float getFloatForUser(ContentResolver cr, String name, float def,
                int userHandle) {
            String v = getStringForUser(cr, name, userHandle);
            try {
                return v != null ? Float.parseFloat(v) : def;
            } catch (NumberFormatException e) {
                return def;
            }
        }

        
Convenience function for retrieving a single secure settings value
as a float.  Note that internally setting values are always
stored as strings; this function converts the string to a float
for you.

 This version does not take a default value. If the setting has not been set, or the string value is not a number, it throws SettingNotFoundException. 
Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
Throws:
Returns:The setting's current value.
/**
         * Convenience function for retrieving a single secure settings value
         * as a float.  Note that internally setting values are always
         * stored as strings; this function converts the string to a float
         * for you.
         * <p>
         * This version does not take a default value.  If the setting has not
         * been set, or the string value is not a number,
         * it throws {@link SettingNotFoundException}.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         *
         * @throws SettingNotFoundException Thrown if a setting by the given
         * name can't be found or the setting value is not a float.
         *
         * @return The setting's current value.
         */
        public static float getFloat(ContentResolver cr, String name)
                throws SettingNotFoundException {
            return getFloatForUser(cr, name, cr.getUserId());
        }

        
@hide
/** @hide */
        public static float getFloatForUser(ContentResolver cr, String name, int userHandle)
                throws SettingNotFoundException {
            String v = getStringForUser(cr, name, userHandle);
            if (v == null) {
                throw new SettingNotFoundException(name);
            }
            try {
                return Float.parseFloat(v);
            } catch (NumberFormatException e) {
                throw new SettingNotFoundException(name);
            }
        }

        
Convenience function for updating a single settings value as a
floating point number. This will either create a new entry in the
table if the given name does not exist, or modify the value of the
existing row with that name.  Note that internally setting values
are always stored as strings, so this function converts the given
value to a string before storing it.

Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to modify.
  • value – The new value for the setting.
Returns:true if the value was set, false on database errors
/**
         * Convenience function for updating a single settings value as a
         * floating point number. This will either create a new entry in the
         * table if the given name does not exist, or modify the value of the
         * existing row with that name.  Note that internally setting values
         * are always stored as strings, so this function converts the given
         * value to a string before storing it.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to modify.
         * @param value The new value for the setting.
         * @return true if the value was set, false on database errors
         */
        public static boolean putFloat(ContentResolver cr, String name, float value) {
            return putFloatForUser(cr, name, value, cr.getUserId());
        }

        
@hide
/** @hide */
        public static boolean putFloatForUser(ContentResolver cr, String name, float value,
                int userHandle) {
            return putStringForUser(cr, name, Float.toString(value), userHandle);
        }

        
Deprecated:Use Global.DEVELOPMENT_SETTINGS_ENABLED instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#DEVELOPMENT_SETTINGS_ENABLED}
         * instead
         */
        @Deprecated
        public static final String DEVELOPMENT_SETTINGS_ENABLED =
                Global.DEVELOPMENT_SETTINGS_ENABLED;

        
When the user has enable the option to have a "bug report" command
in the power menu.

Deprecated:Use Global.BUGREPORT_IN_POWER_MENU instead
@hide
/**
         * When the user has enable the option to have a "bug report" command
         * in the power menu.
         * @deprecated Use {@link android.provider.Settings.Global#BUGREPORT_IN_POWER_MENU} instead
         * @hide
         */
        @Deprecated
        public static final String BUGREPORT_IN_POWER_MENU = "bugreport_in_power_menu";

        private static final Validator BUGREPORT_IN_POWER_MENU_VALIDATOR = BOOLEAN_VALIDATOR;

        
Deprecated:Use Global.ADB_ENABLED instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#ADB_ENABLED} instead
         */
        @Deprecated
        public static final String ADB_ENABLED = Global.ADB_ENABLED;

        
Setting to allow mock locations and location provider status to be injected into the
LocationManager service for testing purposes during application development.  These
locations and status values  override actual location and status information generated
by network, gps, or other location providers.

Deprecated:This settings is not used anymore.
/**
         * Setting to allow mock locations and location provider status to be injected into the
         * LocationManager service for testing purposes during application development.  These
         * locations and status values  override actual location and status information generated
         * by network, gps, or other location providers.
         *
         * @deprecated This settings is not used anymore.
         */
        @Deprecated
        public static final String ALLOW_MOCK_LOCATION = "mock_location";

        private static final Validator ALLOW_MOCK_LOCATION_VALIDATOR = BOOLEAN_VALIDATOR;

        
On Android 8.0 (API level 26) and higher versions of the platform, a 64-bit number (expressed as a hexadecimal string), unique to each combination of app-signing key, user, and device. Values of ANDROID_ID are scoped by signing key and user. The value may change if a factory reset is performed on the device or if an APK signing key changes. For more information about how the platform handles ANDROID_ID in Android 8.0 (API level 26) and higher, see 
Android 8.0 Behavior Changes.

Note: For apps that were installed prior to updating the device to a version of Android 8.0 (API level 26) or higher, the value of ANDROID_ID changes if the app is uninstalled and then reinstalled after the OTA. To preserve values across uninstalls after an OTA to Android 8.0 or higher, developers can use 
Key/Value Backup.


In versions of the platform lower than Android 8.0 (API level 26),
a 64-bit number (expressed as a hexadecimal string) that is randomly
generated when the user first sets up the device and should remain
constant for the lifetime of the user's device.
On devices that have

multiple users, each user appears as a completely separate device, so the ANDROID_ID value is unique to each user.


Note: If the caller is an Instant App the ID is scoped
to the Instant App, it is generated when the Instant App is first installed and reset if
the user clears the Instant App.

/**
         * On Android 8.0 (API level 26) and higher versions of the platform,
         * a 64-bit number (expressed as a hexadecimal string), unique to
         * each combination of app-signing key, user, and device.
         * Values of {@code ANDROID_ID} are scoped by signing key and user.
         * The value may change if a factory reset is performed on the
         * device or if an APK signing key changes.
         *
         * For more information about how the platform handles {@code ANDROID_ID}
         * in Android 8.0 (API level 26) and higher, see <a
         * href="{@docRoot}preview/behavior-changes.html#privacy-all">
         * Android 8.0 Behavior Changes</a>.
         *
         * <p class="note"><strong>Note:</strong> For apps that were installed
         * prior to updating the device to a version of Android 8.0
         * (API level 26) or higher, the value of {@code ANDROID_ID} changes
         * if the app is uninstalled and then reinstalled after the OTA.
         * To preserve values across uninstalls after an OTA to Android 8.0
         * or higher, developers can use
         * <a href="{@docRoot}guide/topics/data/keyvaluebackup.html">
         * Key/Value Backup</a>.</p>
         *
         * <p>In versions of the platform lower than Android 8.0 (API level 26),
         * a 64-bit number (expressed as a hexadecimal string) that is randomly
         * generated when the user first sets up the device and should remain
         * constant for the lifetime of the user's device.
         *
         * On devices that have
         * <a href="{@docRoot}about/versions/android-4.2.html#MultipleUsers">
         * multiple users</a>, each user appears as a
         * completely separate device, so the {@code ANDROID_ID} value is
         * unique to each user.</p>
         *
         * <p class="note"><strong>Note:</strong> If the caller is an Instant App the ID is scoped
         * to the Instant App, it is generated when the Instant App is first installed and reset if
         * the user clears the Instant App.
         */
        public static final String ANDROID_ID = "android_id";

        
Deprecated:Use Global.BLUETOOTH_ON instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#BLUETOOTH_ON} instead
         */
        @Deprecated
        public static final String BLUETOOTH_ON = Global.BLUETOOTH_ON;

        private static final Validator BLUETOOTH_ON_VALIDATOR = BOOLEAN_VALIDATOR;

        
Deprecated:Use Global.DATA_ROAMING instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#DATA_ROAMING} instead
         */
        @Deprecated
        public static final String DATA_ROAMING = Global.DATA_ROAMING;

        
Setting to record the input method used by default, holding the ID
of the desired method.

/**
         * Setting to record the input method used by default, holding the ID
         * of the desired method.
         */
        public static final String DEFAULT_INPUT_METHOD = "default_input_method";

        
Setting to record the input method subtype used by default, holding the ID
of the desired method.

/**
         * Setting to record the input method subtype used by default, holding the ID
         * of the desired method.
         */
        public static final String SELECTED_INPUT_METHOD_SUBTYPE =
                "selected_input_method_subtype";

        
Setting to record the history of input method subtype, holding the pair of ID of IME
and its last used subtype.

@hide
/**
         * Setting to record the history of input method subtype, holding the pair of ID of IME
         * and its last used subtype.
         * @hide
         */
        public static final String INPUT_METHODS_SUBTYPE_HISTORY =
                "input_methods_subtype_history";

        
Setting to record the visibility of input method selector

/**
         * Setting to record the visibility of input method selector
         */
        public static final String INPUT_METHOD_SELECTOR_VISIBILITY =
                "input_method_selector_visibility";

        
The currently selected voice interaction service flattened ComponentName.

@hide
/**
         * The currently selected voice interaction service flattened ComponentName.
         * @hide
         */
        @TestApi
        public static final String VOICE_INTERACTION_SERVICE = "voice_interaction_service";

        
The currently selected autofill service flattened ComponentName.

@hide
/**
         * The currently selected autofill service flattened ComponentName.
         * @hide
         */
        @TestApi
        public static final String AUTOFILL_SERVICE = "autofill_service";

        private static final Validator AUTOFILL_SERVICE_VALIDATOR =
                NULLABLE_COMPONENT_NAME_VALIDATOR;

        
Boolean indicating if Autofill supports field classification.

See Also:
  • AutofillService
@hide
/**
         * Boolean indicating if Autofill supports field classification.
         *
         * @see android.service.autofill.AutofillService
         *
         * @hide
         */
        @SystemApi
        @TestApi
        public static final String AUTOFILL_FEATURE_FIELD_CLASSIFICATION =
                "autofill_field_classification";

        
Defines value returned by UserData.getMaxUserDataSize(). 
@hide
/**
         * Defines value returned by {@link android.service.autofill.UserData#getMaxUserDataSize()}.
         *
         * @hide
         */
        @SystemApi
        @TestApi
        public static final String AUTOFILL_USER_DATA_MAX_USER_DATA_SIZE =
                "autofill_user_data_max_user_data_size";

        
@hide
/**
         * Defines value returned by
         * {@link android.service.autofill.UserData#getMaxFieldClassificationIdsSize()}.
         *
         * @hide
         */
        @SystemApi
        @TestApi
        public static final String AUTOFILL_USER_DATA_MAX_FIELD_CLASSIFICATION_IDS_SIZE =
                "autofill_user_data_max_field_classification_size";

        
Defines value returned by UserData.getMaxCategoryCount(). 
@hide
/**
         * Defines value returned by
         * {@link android.service.autofill.UserData#getMaxCategoryCount()}.
         *
         * @hide
         */
        @SystemApi
        @TestApi
        public static final String AUTOFILL_USER_DATA_MAX_CATEGORY_COUNT =
                "autofill_user_data_max_category_count";

        
Defines value returned by UserData.getMaxValueLength(). 
@hide
/**
         * Defines value returned by {@link android.service.autofill.UserData#getMaxValueLength()}.
         *
         * @hide
         */
        @SystemApi
        @TestApi
        public static final String AUTOFILL_USER_DATA_MAX_VALUE_LENGTH =
                "autofill_user_data_max_value_length";

        
Defines value returned by UserData.getMinValueLength(). 
@hide
/**
         * Defines value returned by {@link android.service.autofill.UserData#getMinValueLength()}.
         *
         * @hide
         */
        @SystemApi
        @TestApi
        public static final String AUTOFILL_USER_DATA_MIN_VALUE_LENGTH =
                "autofill_user_data_min_value_length";

        
Deprecated:Use Global.DEVICE_PROVISIONED instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#DEVICE_PROVISIONED} instead
         */
        @Deprecated
        public static final String DEVICE_PROVISIONED = Global.DEVICE_PROVISIONED;

        
Whether the current user has been set up via setup wizard (0 = false, 1 = true)

@hide
/**
         * Whether the current user has been set up via setup wizard (0 = false, 1 = true)
         * @hide
         */
        @TestApi
        public static final String USER_SETUP_COMPLETE = "user_setup_complete";

        
The current state of device personalization.

See Also:
@hide
/**
         * The current state of device personalization.
         *
         * @hide
         * @see UserSetupPersonalization
         */
        public static final String USER_SETUP_PERSONALIZATION_STATE =
                "user_setup_personalization_state";

        
Whether the current user has been set up via setup wizard (0 = false, 1 = true)
This value differs from USER_SETUP_COMPLETE in that it can be reset back to 0
in case SetupWizard has been re-enabled on TV devices.

@hide
/**
         * Whether the current user has been set up via setup wizard (0 = false, 1 = true)
         * This value differs from USER_SETUP_COMPLETE in that it can be reset back to 0
         * in case SetupWizard has been re-enabled on TV devices.
         *
         * @hide
         */
        public static final String TV_USER_SETUP_COMPLETE = "tv_user_setup_complete";

        
Prefix for category name that marks whether a suggested action from that category was
completed.

@hide
/**
         * Prefix for category name that marks whether a suggested action from that category was
         * completed.
         * @hide
         */
        public static final String COMPLETED_CATEGORY_PREFIX = "suggested.completed_category.";

        
List of input methods that are currently enabled.  This is a string
containing the IDs of all enabled input methods, each ID separated
by ':'.
Format like "ime0;subtype0;subtype1;subtype2:ime1:ime2;subtype0"
where imeId is ComponentName and subtype is int32.

/**
         * List of input methods that are currently enabled.  This is a string
         * containing the IDs of all enabled input methods, each ID separated
         * by ':'.
         *
         * Format like "ime0;subtype0;subtype1;subtype2:ime1:ime2;subtype0"
         * where imeId is ComponentName and subtype is int32.
         */
        public static final String ENABLED_INPUT_METHODS = "enabled_input_methods";

        
List of system input methods that are currently disabled.  This is a string
containing the IDs of all disabled input methods, each ID separated
by ':'.

@hide
/**
         * List of system input methods that are currently disabled.  This is a string
         * containing the IDs of all disabled input methods, each ID separated
         * by ':'.
         * @hide
         */
        public static final String DISABLED_SYSTEM_INPUT_METHODS = "disabled_system_input_methods";

        
Whether to show the IME when a hard keyboard is connected. This is a boolean that
determines if the IME should be shown when a hard keyboard is attached.

@hide
/**
         * Whether to show the IME when a hard keyboard is connected. This is a boolean that
         * determines if the IME should be shown when a hard keyboard is attached.
         * @hide
         */
        public static final String SHOW_IME_WITH_HARD_KEYBOARD = "show_ime_with_hard_keyboard";

        private static final Validator SHOW_IME_WITH_HARD_KEYBOARD_VALIDATOR = BOOLEAN_VALIDATOR;

        
Host name and port for global http proxy. Uses ':' seperator for
between host and port.

Deprecated:Use Global.HTTP_PROXY
/**
         * Host name and port for global http proxy. Uses ':' seperator for
         * between host and port.
         *
         * @deprecated Use {@link Global#HTTP_PROXY}
         */
        @Deprecated
        public static final String HTTP_PROXY = Global.HTTP_PROXY;

        
Package designated as always-on VPN provider.

@hide
/**
         * Package designated as always-on VPN provider.
         *
         * @hide
         */
        public static final String ALWAYS_ON_VPN_APP = "always_on_vpn_app";

        
Whether to block networking outside of VPN connections while always-on is set.

See Also:
  • ALWAYS_ON_VPN_APP
@hide
/**
         * Whether to block networking outside of VPN connections while always-on is set.
         * @see #ALWAYS_ON_VPN_APP
         *
         * @hide
         */
        public static final String ALWAYS_ON_VPN_LOCKDOWN = "always_on_vpn_lockdown";

        
Whether applications can be installed for this user via the system's Intent.ACTION_INSTALL_PACKAGE mechanism. 
1 = permit app installation via the system package installer intent

0 = do not allow use of the package installer

See Also:
Deprecated:Starting from VERSION_CODES.O, apps should use PackageManager.canRequestPackageInstalls()
/**
         * Whether applications can be installed for this user via the system's
         * {@link Intent#ACTION_INSTALL_PACKAGE} mechanism.
         *
         * <p>1 = permit app installation via the system package installer intent
         * <p>0 = do not allow use of the package installer
         * @deprecated Starting from {@link android.os.Build.VERSION_CODES#O}, apps should use
         * {@link PackageManager#canRequestPackageInstalls()}
         * @see PackageManager#canRequestPackageInstalls()
         */
        public static final String INSTALL_NON_MARKET_APPS = "install_non_market_apps";

        
A flag to tell DevicePolicyManagerService that the default for INSTALL_NON_MARKET_APPS is reversed for this user on OTA. So it can set the restriction UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES on behalf of the profile owner if needed to make the change transparent for profile owners. 
@hide
/**
         * A flag to tell {@link com.android.server.devicepolicy.DevicePolicyManagerService} that
         * the default for {@link #INSTALL_NON_MARKET_APPS} is reversed for this user on OTA. So it
         * can set the restriction {@link android.os.UserManager#DISALLOW_INSTALL_UNKNOWN_SOURCES}
         * on behalf of the profile owner if needed to make the change transparent for profile
         * owners.
         *
         * @hide
         */
        public static final String UNKNOWN_SOURCES_DEFAULT_REVERSED =
                "unknown_sources_default_reversed";

        
Comma-separated list of location providers that activities may access. Do not rely on
this value being present in settings.db or on ContentObserver notifications on the
corresponding Uri.

Deprecated:use LOCATION_MODE and LocationManager.MODE_CHANGED_ACTION (or LocationManager.PROVIDERS_CHANGED_ACTION)
/**
         * Comma-separated list of location providers that activities may access. Do not rely on
         * this value being present in settings.db or on ContentObserver notifications on the
         * corresponding Uri.
         *
         * @deprecated use {@link #LOCATION_MODE} and
         * {@link LocationManager#MODE_CHANGED_ACTION} (or
         * {@link LocationManager#PROVIDERS_CHANGED_ACTION})
         */
        @Deprecated
        public static final String LOCATION_PROVIDERS_ALLOWED = "location_providers_allowed";

        
The degree of location access enabled by the user.

 When used with putInt(ContentResolver, String, int), must be one of LOCATION_MODE_HIGH_ACCURACY, LOCATION_MODE_SENSORS_ONLY, LOCATION_MODE_BATTERY_SAVING, or LOCATION_MODE_OFF. When used with getInt(ContentResolver, String), the caller must gracefully handle additional location modes that might be added in the future. 
 Note: do not rely on this value being present in settings.db or on ContentObserver notifications for the corresponding Uri. Use LocationManager.MODE_CHANGED_ACTION to receive changes in this value. 
Deprecated:To check location status, use LocationManager.isLocationEnabled(). To get the status of a location provider, use LocationManager.isProviderEnabled(String).
/**
         * The degree of location access enabled by the user.
         * <p>
         * When used with {@link #putInt(ContentResolver, String, int)}, must be one of {@link
         * #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY}, {@link
         * #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}. When used with {@link
         * #getInt(ContentResolver, String)}, the caller must gracefully handle additional location
         * modes that might be added in the future.
         * <p>
         * Note: do not rely on this value being present in settings.db or on ContentObserver
         * notifications for the corresponding Uri. Use {@link LocationManager#MODE_CHANGED_ACTION}
         * to receive changes in this value.
         *
         * @deprecated To check location status, use {@link LocationManager#isLocationEnabled()}. To
         *             get the status of a location provider, use
         *             {@link LocationManager#isProviderEnabled(String)}.
         */
        @Deprecated
        public static final String LOCATION_MODE = "location_mode";

        
The App or module that changes the location mode.

@hide
/**
         * The App or module that changes the location mode.
         * @hide
         */
        public static final String LOCATION_CHANGER = "location_changer";
        
The location changer is unknown or unable to detect.

@hide
/**
         * The location changer is unknown or unable to detect.
         * @hide
         */
        public static final int LOCATION_CHANGER_UNKNOWN = 0;
        
Location settings in system settings.

@hide
/**
         * Location settings in system settings.
         * @hide
         */
        public static final int LOCATION_CHANGER_SYSTEM_SETTINGS = 1;
        
The location icon in drop down notification drawer.

@hide
/**
         * The location icon in drop down notification drawer.
         * @hide
         */
        public static final int LOCATION_CHANGER_QUICK_SETTINGS = 2;

        
Location access disabled.

Deprecated:To check location status, use LocationManager.isLocationEnabled(). To get the status of a location provider, use LocationManager.isProviderEnabled(String).
/**
         * Location access disabled.
         *
         * @deprecated To check location status, use {@link LocationManager#isLocationEnabled()}. To
         *             get the status of a location provider, use
         *             {@link LocationManager#isProviderEnabled(String)}.
         */
        @Deprecated
        public static final int LOCATION_MODE_OFF = 0;

        
Network Location Provider disabled, but GPS and other sensors enabled.

Deprecated:To check location status, use LocationManager.isLocationEnabled(). To get the status of a location provider, use LocationManager.isProviderEnabled(String).
/**
         * Network Location Provider disabled, but GPS and other sensors enabled.
         *
         * @deprecated To check location status, use {@link LocationManager#isLocationEnabled()}. To
         *             get the status of a location provider, use
         *             {@link LocationManager#isProviderEnabled(String)}.
         */
        @Deprecated
        public static final int LOCATION_MODE_SENSORS_ONLY = 1;

        
Reduced power usage, such as limiting the number of GPS updates per hour. Requests with Criteria.POWER_HIGH may be downgraded to Criteria.POWER_MEDIUM. 
Deprecated:To check location status, use LocationManager.isLocationEnabled(). To get the status of a location provider, use LocationManager.isProviderEnabled(String).
/**
         * Reduced power usage, such as limiting the number of GPS updates per hour. Requests
         * with {@link android.location.Criteria#POWER_HIGH} may be downgraded to
         * {@link android.location.Criteria#POWER_MEDIUM}.
         *
         * @deprecated To check location status, use {@link LocationManager#isLocationEnabled()}. To
         *             get the status of a location provider, use
         *             {@link LocationManager#isProviderEnabled(String)}.
         */
        @Deprecated
        public static final int LOCATION_MODE_BATTERY_SAVING = 2;

        
Best-effort location computation allowed.

Deprecated:To check location status, use LocationManager.isLocationEnabled(). To get the status of a location provider, use LocationManager.isProviderEnabled(String).
/**
         * Best-effort location computation allowed.
         *
         * @deprecated To check location status, use {@link LocationManager#isLocationEnabled()}. To
         *             get the status of a location provider, use
         *             {@link LocationManager#isProviderEnabled(String)}.
         */
        @Deprecated
        public static final int LOCATION_MODE_HIGH_ACCURACY = 3;

        
A flag containing settings used for biometric weak

@hide
/**
         * A flag containing settings used for biometric weak
         * @hide
         */
        @Deprecated
        public static final String LOCK_BIOMETRIC_WEAK_FLAGS =
                "lock_biometric_weak_flags";

        
Whether lock-to-app will lock the keyguard when exiting.

@hide
/**
         * Whether lock-to-app will lock the keyguard when exiting.
         * @hide
         */
        public static final String LOCK_TO_APP_EXIT_LOCKED = "lock_to_app_exit_locked";

        
Whether autolock is enabled (0 = false, 1 = true)

Deprecated:Use KeyguardManager to determine the state and security level of the keyguard. Accessing this setting from an app that is targeting VERSION_CODES.M or later throws a SecurityException.
/**
         * Whether autolock is enabled (0 = false, 1 = true)
         *
         * @deprecated Use {@link android.app.KeyguardManager} to determine the state and security
         *             level of the keyguard. Accessing this setting from an app that is targeting
         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
         */
        @Deprecated
        public static final String LOCK_PATTERN_ENABLED = "lock_pattern_autolock";

        
Whether lock pattern is visible as user enters (0 = false, 1 = true)

Deprecated:Accessing this setting from an app that is targeting VERSION_CODES.M or later throws a SecurityException.
/**
         * Whether lock pattern is visible as user enters (0 = false, 1 = true)
         *
         * @deprecated Accessing this setting from an app that is targeting
         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
         */
        @Deprecated
        public static final String LOCK_PATTERN_VISIBLE = "lock_pattern_visible_pattern";

        
Whether lock pattern will vibrate as user enters (0 = false, 1 =
true)

Deprecated:Starting in VERSION_CODES.JELLY_BEAN_MR1 the lockscreen uses System.HAPTIC_FEEDBACK_ENABLED. Accessing this setting from an app that is targeting VERSION_CODES.M or later throws a SecurityException.
/**
         * Whether lock pattern will vibrate as user enters (0 = false, 1 =
         * true)
         *
         * @deprecated Starting in {@link VERSION_CODES#JELLY_BEAN_MR1} the
         *             lockscreen uses
         *             {@link Settings.System#HAPTIC_FEEDBACK_ENABLED}.
         *             Accessing this setting from an app that is targeting
         *             {@link VERSION_CODES#M} or later throws a {@code SecurityException}.
         */
        @Deprecated
        public static final String
                LOCK_PATTERN_TACTILE_FEEDBACK_ENABLED = "lock_pattern_tactile_feedback_enabled";

        
This preference allows the device to be locked given time after screen goes off,
subject to current DeviceAdmin policy limits.

@hide
/**
         * This preference allows the device to be locked given time after screen goes off,
         * subject to current DeviceAdmin policy limits.
         * @hide
         */
        public static final String LOCK_SCREEN_LOCK_AFTER_TIMEOUT = "lock_screen_lock_after_timeout";


        
This preference contains the string that shows for owner info on LockScreen.

@hide
Deprecated:
/**
         * This preference contains the string that shows for owner info on LockScreen.
         * @hide
         * @deprecated
         */
        @Deprecated
        public static final String LOCK_SCREEN_OWNER_INFO = "lock_screen_owner_info";

        
Ids of the user-selected appwidgets on the lockscreen (comma-delimited).

@hide
/**
         * Ids of the user-selected appwidgets on the lockscreen (comma-delimited).
         * @hide
         */
        @Deprecated
        public static final String LOCK_SCREEN_APPWIDGET_IDS =
            "lock_screen_appwidget_ids";

        
Id of the appwidget shown on the lock screen when appwidgets are disabled.

@hide
/**
         * Id of the appwidget shown on the lock screen when appwidgets are disabled.
         * @hide
         */
        @Deprecated
        public static final String LOCK_SCREEN_FALLBACK_APPWIDGET_ID =
            "lock_screen_fallback_appwidget_id";

        
Index of the lockscreen appwidget to restore, -1 if none.

@hide
/**
         * Index of the lockscreen appwidget to restore, -1 if none.
         * @hide
         */
        @Deprecated
        public static final String LOCK_SCREEN_STICKY_APPWIDGET =
            "lock_screen_sticky_appwidget";

        
This preference enables showing the owner info on LockScreen.

@hide
Deprecated:
/**
         * This preference enables showing the owner info on LockScreen.
         * @hide
         * @deprecated
         */
        @Deprecated
        public static final String LOCK_SCREEN_OWNER_INFO_ENABLED =
            "lock_screen_owner_info_enabled";

        
When set by a user, allows notifications to be shown atop a securely locked screen
in their full "private" form (same as when the device is unlocked).

@hide
/**
         * When set by a user, allows notifications to be shown atop a securely locked screen
         * in their full "private" form (same as when the device is unlocked).
         * @hide
         */
        public static final String LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS =
                "lock_screen_allow_private_notifications";

        
When set by a user, allows notification remote input atop a securely locked screen
without having to unlock

@hide
/**
         * When set by a user, allows notification remote input atop a securely locked screen
         * without having to unlock
         * @hide
         */
        public static final String LOCK_SCREEN_ALLOW_REMOTE_INPUT =
                "lock_screen_allow_remote_input";

        
Set by the system to track if the user needs to see the call to action for
the lockscreen notification policy.

@hide
/**
         * Set by the system to track if the user needs to see the call to action for
         * the lockscreen notification policy.
         * @hide
         */
        public static final String SHOW_NOTE_ABOUT_NOTIFICATION_HIDING =
                "show_note_about_notification_hiding";

        
Set to 1 by the system after trust agents have been initialized.

@hide
/**
         * Set to 1 by the system after trust agents have been initialized.
         * @hide
         */
        public static final String TRUST_AGENTS_INITIALIZED =
                "trust_agents_initialized";

        
The Logging ID (a unique 64-bit value) as a hex string.
Used as a pseudonymous identifier for logging.

Deprecated:This identifier is poorly initialized and has
many collisions.  It should not be used.
/**
         * The Logging ID (a unique 64-bit value) as a hex string.
         * Used as a pseudonymous identifier for logging.
         * @deprecated This identifier is poorly initialized and has
         * many collisions.  It should not be used.
         */
        @Deprecated
        public static final String LOGGING_ID = "logging_id";

        
Deprecated:Use Global.NETWORK_PREFERENCE instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#NETWORK_PREFERENCE} instead
         */
        @Deprecated
        public static final String NETWORK_PREFERENCE = Global.NETWORK_PREFERENCE;

        
No longer supported.

/**
         * No longer supported.
         */
        public static final String PARENTAL_CONTROL_ENABLED = "parental_control_enabled";

        
No longer supported.

/**
         * No longer supported.
         */
        public static final String PARENTAL_CONTROL_LAST_UPDATE = "parental_control_last_update";

        
No longer supported.

/**
         * No longer supported.
         */
        public static final String PARENTAL_CONTROL_REDIRECT_URL = "parental_control_redirect_url";

        
Settings classname to launch when Settings is clicked from All
Applications.  Needed because of user testing between the old
and new Settings apps.

/**
         * Settings classname to launch when Settings is clicked from All
         * Applications.  Needed because of user testing between the old
         * and new Settings apps.
         */
        // TODO: 881807
        public static final String SETTINGS_CLASSNAME = "settings_classname";

        
Deprecated:Use Global.USB_MASS_STORAGE_ENABLED instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#USB_MASS_STORAGE_ENABLED} instead
         */
        @Deprecated
        public static final String USB_MASS_STORAGE_ENABLED = Global.USB_MASS_STORAGE_ENABLED;

        private static final Validator USB_MASS_STORAGE_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Deprecated:Use Global.USE_GOOGLE_MAIL instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#USE_GOOGLE_MAIL} instead
         */
        @Deprecated
        public static final String USE_GOOGLE_MAIL = Global.USE_GOOGLE_MAIL;

        
If accessibility is enabled.

/**
         * If accessibility is enabled.
         */
        public static final String ACCESSIBILITY_ENABLED = "accessibility_enabled";

        private static final Validator ACCESSIBILITY_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Setting specifying if the accessibility shortcut is enabled.

@hide
/**
         * Setting specifying if the accessibility shortcut is enabled.
         * @hide
         */
        public static final String ACCESSIBILITY_SHORTCUT_ENABLED =
                "accessibility_shortcut_enabled";

        private static final Validator ACCESSIBILITY_SHORTCUT_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Setting specifying if the accessibility shortcut is enabled.

@hide
/**
         * Setting specifying if the accessibility shortcut is enabled.
         * @hide
         */
        public static final String ACCESSIBILITY_SHORTCUT_ON_LOCK_SCREEN =
                "accessibility_shortcut_on_lock_screen";

        private static final Validator ACCESSIBILITY_SHORTCUT_ON_LOCK_SCREEN_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Setting specifying if the accessibility shortcut dialog has been shown to this user.

@hide
/**
         * Setting specifying if the accessibility shortcut dialog has been shown to this user.
         * @hide
         */
        public static final String ACCESSIBILITY_SHORTCUT_DIALOG_SHOWN =
                "accessibility_shortcut_dialog_shown";

        private static final Validator ACCESSIBILITY_SHORTCUT_DIALOG_SHOWN_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Setting specifying the accessibility service to be toggled via the accessibility shortcut. Must be its flattened ComponentName. 
@hide
/**
         * Setting specifying the accessibility service to be toggled via the accessibility
         * shortcut. Must be its flattened {@link ComponentName}.
         * @hide
         */
        public static final String ACCESSIBILITY_SHORTCUT_TARGET_SERVICE =
                "accessibility_shortcut_target_service";

        private static final Validator ACCESSIBILITY_SHORTCUT_TARGET_SERVICE_VALIDATOR =
                NULLABLE_COMPONENT_NAME_VALIDATOR;

        
Setting specifying the accessibility service or feature to be toggled via the accessibility button in the navigation bar. This is either a flattened ComponentName or the class name of a system class implementing a supported accessibility feature. 
@hide
/**
         * Setting specifying the accessibility service or feature to be toggled via the
         * accessibility button in the navigation bar. This is either a flattened
         * {@link ComponentName} or the class name of a system class implementing a supported
         * accessibility feature.
         * @hide
         */
        public static final String ACCESSIBILITY_BUTTON_TARGET_COMPONENT =
                "accessibility_button_target_component";

        private static final Validator ACCESSIBILITY_BUTTON_TARGET_COMPONENT_VALIDATOR =
                new Validator() {
                    @Override
                    public boolean validate(@Nullable String value) {
                        // technically either ComponentName or class name, but there's proper value
                        // validation at callsites, so allow any non-null string
                        return value != null;
                    }
                };

        
If touch exploration is enabled.

/**
         * If touch exploration is enabled.
         */
        public static final String TOUCH_EXPLORATION_ENABLED = "touch_exploration_enabled";

        private static final Validator TOUCH_EXPLORATION_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
List of the enabled accessibility providers.

/**
         * List of the enabled accessibility providers.
         */
        public static final String ENABLED_ACCESSIBILITY_SERVICES =
            "enabled_accessibility_services";

        private static final Validator ENABLED_ACCESSIBILITY_SERVICES_VALIDATOR =
                new SettingsValidators.ComponentNameListValidator(":");

        
List of the accessibility services to which the user has granted
permission to put the device into touch exploration mode.

@hide
/**
         * List of the accessibility services to which the user has granted
         * permission to put the device into touch exploration mode.
         *
         * @hide
         */
        public static final String TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES =
            "touch_exploration_granted_accessibility_services";

        private static final Validator TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES_VALIDATOR =
                new SettingsValidators.ComponentNameListValidator(":");

        
Whether the hush gesture has ever been used // TODO: beverlyt

@hide
/**
         * Whether the hush gesture has ever been used // TODO: beverlyt
         * @hide
         */
        public static final String HUSH_GESTURE_USED = "hush_gesture_used";

        private static final Validator HUSH_GESTURE_USED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Number of times the user has manually clicked the ringer toggle

@hide
/**
         * Number of times the user has manually clicked the ringer toggle
         * @hide
         */
        public static final String MANUAL_RINGER_TOGGLE_COUNT = "manual_ringer_toggle_count";

        private static final Validator MANUAL_RINGER_TOGGLE_COUNT_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
Uri of the slice that's presented on the keyguard.
Defaults to a slice with the date and next alarm.

@hide
/**
         * Uri of the slice that's presented on the keyguard.
         * Defaults to a slice with the date and next alarm.
         *
         * @hide
         */
        public static final String KEYGUARD_SLICE_URI = "keyguard_slice_uri";

        
Whether to speak passwords while in accessibility mode.

Deprecated:The speaking of passwords is controlled by individual accessibility services. Apps should ignore this setting and provide complete information to accessibility at all times, which was the behavior when this value was true.
/**
         * Whether to speak passwords while in accessibility mode.
         *
         * @deprecated The speaking of passwords is controlled by individual accessibility services.
         * Apps should ignore this setting and provide complete information to accessibility
         * at all times, which was the behavior when this value was {@code true}.
         */
        @Deprecated
        public static final String ACCESSIBILITY_SPEAK_PASSWORD = "speak_password";

        private static final Validator ACCESSIBILITY_SPEAK_PASSWORD_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether to draw text with high contrast while in accessibility mode.

@hide
/**
         * Whether to draw text with high contrast while in accessibility mode.
         *
         * @hide
         */
        public static final String ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED =
                "high_text_contrast_enabled";

        private static final Validator ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Setting that specifies whether the display magnification is enabled via a system-wide triple tap gesture. Display magnifications allows the user to zoom in the display content and is targeted to low vision users. The current magnification scale is controlled by ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE. 
@hide
/**
         * Setting that specifies whether the display magnification is enabled via a system-wide
         * triple tap gesture. Display magnifications allows the user to zoom in the display content
         * and is targeted to low vision users. The current magnification scale is controlled by
         * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE}.
         *
         * @hide
         */
        @TestApi
        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED =
                "accessibility_display_magnification_enabled";

        private static final Validator ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Setting that specifies whether the display magnification is enabled via a shortcut affordance within the system's navigation area. Display magnifications allows the user to zoom in the display content and is targeted to low vision users. The current magnification scale is controlled by ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE. 
@hide
/**
         * Setting that specifies whether the display magnification is enabled via a shortcut
         * affordance within the system's navigation area. Display magnifications allows the user to
         * zoom in the display content and is targeted to low vision users. The current
         * magnification scale is controlled by {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE}.
         *
         * @hide
         */
        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED =
                "accessibility_display_magnification_navbar_enabled";

        private static final Validator ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED_VALIDATOR
                = BOOLEAN_VALIDATOR;

        
Setting that specifies what the display magnification scale is. Display magnifications allows the user to zoom in the display content and is targeted to low vision users. Whether a display magnification is performed is controlled by ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED and ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED 
@hide
/**
         * Setting that specifies what the display magnification scale is.
         * Display magnifications allows the user to zoom in the display
         * content and is targeted to low vision users. Whether a display
         * magnification is performed is controlled by
         * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED} and
         * {@link #ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED}
         *
         * @hide
         */
        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE =
                "accessibility_display_magnification_scale";

        private static final Validator ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE_VALIDATOR =
                new SettingsValidators.InclusiveFloatRangeValidator(1.0f, Float.MAX_VALUE);

        
Unused mangnification setting

@hide
Deprecated:
/**
         * Unused mangnification setting
         *
         * @hide
         * @deprecated
         */
        @Deprecated
        public static final String ACCESSIBILITY_DISPLAY_MAGNIFICATION_AUTO_UPDATE =
                "accessibility_display_magnification_auto_update";

        
Setting that specifies what mode the soft keyboard is in (default or hidden). Can be
modified from an AccessibilityService using the SoftKeyboardController.

@hide
/**
         * Setting that specifies what mode the soft keyboard is in (default or hidden). Can be
         * modified from an AccessibilityService using the SoftKeyboardController.
         *
         * @hide
         */
        public static final String ACCESSIBILITY_SOFT_KEYBOARD_MODE =
                "accessibility_soft_keyboard_mode";

        
Default soft keyboard behavior.

@hide
/**
         * Default soft keyboard behavior.
         *
         * @hide
         */
        public static final int SHOW_MODE_AUTO = 0;

        
Soft keyboard is never shown.

@hide
/**
         * Soft keyboard is never shown.
         *
         * @hide
         */
        public static final int SHOW_MODE_HIDDEN = 1;

        
@hide
/**
         * Setting that specifies whether timed text (captions) should be
         * displayed in video content. Text display properties are controlled by
         * the following settings:
         * <ul>
         * <li>{@link #ACCESSIBILITY_CAPTIONING_LOCALE}
         * <li>{@link #ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR}
         * <li>{@link #ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR}
         * <li>{@link #ACCESSIBILITY_CAPTIONING_EDGE_COLOR}
         * <li>{@link #ACCESSIBILITY_CAPTIONING_EDGE_TYPE}
         * <li>{@link #ACCESSIBILITY_CAPTIONING_TYPEFACE}
         * <li>{@link #ACCESSIBILITY_CAPTIONING_FONT_SCALE}
         * </ul>
         *
         * @hide
         */
        public static final String ACCESSIBILITY_CAPTIONING_ENABLED =
                "accessibility_captioning_enabled";

        private static final Validator ACCESSIBILITY_CAPTIONING_ENABLED_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Setting that specifies the language for captions as a locale string,
e.g. en_US.

See Also:
  • toString.toString
@hide
/**
         * Setting that specifies the language for captions as a locale string,
         * e.g. en_US.
         *
         * @see java.util.Locale#toString
         * @hide
         */
        public static final String ACCESSIBILITY_CAPTIONING_LOCALE =
                "accessibility_captioning_locale";

        private static final Validator ACCESSIBILITY_CAPTIONING_LOCALE_VALIDATOR = LOCALE_VALIDATOR;

        
Integer property that specifies the preset style for captions, one
of:


See Also:
@hide
/**
         * Integer property that specifies the preset style for captions, one
         * of:
         * <ul>
         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#PRESET_CUSTOM}
         * <li>a valid index of {@link android.view.accessibility.CaptioningManager.CaptionStyle#PRESETS}
         * </ul>
         *
         * @see java.util.Locale#toString
         * @hide
         */
        public static final String ACCESSIBILITY_CAPTIONING_PRESET =
                "accessibility_captioning_preset";

        private static final Validator ACCESSIBILITY_CAPTIONING_PRESET_VALIDATOR =
                new SettingsValidators.DiscreteValueValidator(new String[]{"-1", "0", "1", "2",
                        "3", "4"});

        
Integer property that specifes the background color for captions as a
packed 32-bit color.

See Also:
  • argb.argb
@hide
/**
         * Integer property that specifes the background color for captions as a
         * packed 32-bit color.
         *
         * @see android.graphics.Color#argb
         * @hide
         */
        public static final String ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR =
                "accessibility_captioning_background_color";

        private static final Validator ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR_VALIDATOR =
                ANY_INTEGER_VALIDATOR;

        
Integer property that specifes the foreground color for captions as a
packed 32-bit color.

See Also:
  • argb.argb
@hide
/**
         * Integer property that specifes the foreground color for captions as a
         * packed 32-bit color.
         *
         * @see android.graphics.Color#argb
         * @hide
         */
        public static final String ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR =
                "accessibility_captioning_foreground_color";

        private static final Validator ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR_VALIDATOR =
                ANY_INTEGER_VALIDATOR;

        
Integer property that specifes the edge type for captions, one of:


See Also:
@hide
/**
         * Integer property that specifes the edge type for captions, one of:
         * <ul>
         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_NONE}
         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_OUTLINE}
         * <li>{@link android.view.accessibility.CaptioningManager.CaptionStyle#EDGE_TYPE_DROP_SHADOW}
         * </ul>
         *
         * @see #ACCESSIBILITY_CAPTIONING_EDGE_COLOR
         * @hide
         */
        public static final String ACCESSIBILITY_CAPTIONING_EDGE_TYPE =
                "accessibility_captioning_edge_type";

        private static final Validator ACCESSIBILITY_CAPTIONING_EDGE_TYPE_VALIDATOR =
                new SettingsValidators.DiscreteValueValidator(new String[]{"0", "1", "2"});

        
Integer property that specifes the edge color for captions as a
packed 32-bit color.

See Also:
@hide
/**
         * Integer property that specifes the edge color for captions as a
         * packed 32-bit color.
         *
         * @see #ACCESSIBILITY_CAPTIONING_EDGE_TYPE
         * @see android.graphics.Color#argb
         * @hide
         */
        public static final String ACCESSIBILITY_CAPTIONING_EDGE_COLOR =
                "accessibility_captioning_edge_color";

        private static final Validator ACCESSIBILITY_CAPTIONING_EDGE_COLOR_VALIDATOR =
                ANY_INTEGER_VALIDATOR;

        
Integer property that specifes the window color for captions as a
packed 32-bit color.

See Also:
  • argb.argb
@hide
/**
         * Integer property that specifes the window color for captions as a
         * packed 32-bit color.
         *
         * @see android.graphics.Color#argb
         * @hide
         */
        public static final String ACCESSIBILITY_CAPTIONING_WINDOW_COLOR =
                "accessibility_captioning_window_color";

        private static final Validator ACCESSIBILITY_CAPTIONING_WINDOW_COLOR_VALIDATOR =
                ANY_INTEGER_VALIDATOR;

        
String property that specifies the typeface for captions, one of:

    

  • DEFAULT

  • MONOSPACE

  • SANS_SERIF

  • SERIF



See Also:
  • Typeface
@hide
/**
         * String property that specifies the typeface for captions, one of:
         * <ul>
         * <li>DEFAULT
         * <li>MONOSPACE
         * <li>SANS_SERIF
         * <li>SERIF
         * </ul>
         *
         * @see android.graphics.Typeface
         * @hide
         */
        public static final String ACCESSIBILITY_CAPTIONING_TYPEFACE =
                "accessibility_captioning_typeface";

        private static final Validator ACCESSIBILITY_CAPTIONING_TYPEFACE_VALIDATOR =
                new SettingsValidators.DiscreteValueValidator(new String[]{"DEFAULT",
                        "MONOSPACE", "SANS_SERIF", "SERIF"});

        
Floating point property that specifies font scaling for captions.

@hide
/**
         * Floating point property that specifies font scaling for captions.
         *
         * @hide
         */
        public static final String ACCESSIBILITY_CAPTIONING_FONT_SCALE =
                "accessibility_captioning_font_scale";

        private static final Validator ACCESSIBILITY_CAPTIONING_FONT_SCALE_VALIDATOR =
                new SettingsValidators.InclusiveFloatRangeValidator(0.5f, 2.0f);

        
Setting that specifies whether display color inversion is enabled.

/**
         * Setting that specifies whether display color inversion is enabled.
         */
        public static final String ACCESSIBILITY_DISPLAY_INVERSION_ENABLED =
                "accessibility_display_inversion_enabled";

        private static final Validator ACCESSIBILITY_DISPLAY_INVERSION_ENABLED_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Setting that specifies whether display color space adjustment is
enabled.

@hide
/**
         * Setting that specifies whether display color space adjustment is
         * enabled.
         *
         * @hide
         */
        public static final String ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED =
                "accessibility_display_daltonizer_enabled";

        private static final Validator ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Integer property that specifies the type of color space adjustment to
perform. Valid values are defined in AccessibilityManager and Settings arrays.xml:
- AccessibilityManager.DALTONIZER_DISABLED = -1
- AccessibilityManager.DALTONIZER_SIMULATE_MONOCHROMACY = 0
- @string/daltonizer_mode_protanomaly = 11
- AccessibilityManager.DALTONIZER_CORRECT_DEUTERANOMALY and
      @string/daltonizer_mode_deuteranomaly = 12
- @string/daltonizer_mode_tritanomaly = 13

@hide
/**
         * Integer property that specifies the type of color space adjustment to
         * perform. Valid values are defined in AccessibilityManager and Settings arrays.xml:
         * - AccessibilityManager.DALTONIZER_DISABLED = -1
         * - AccessibilityManager.DALTONIZER_SIMULATE_MONOCHROMACY = 0
         * - <item>@string/daltonizer_mode_protanomaly</item> = 11
         * - AccessibilityManager.DALTONIZER_CORRECT_DEUTERANOMALY and
         *       <item>@string/daltonizer_mode_deuteranomaly</item> = 12
         * - <item>@string/daltonizer_mode_tritanomaly</item> = 13
         *
         * @hide
         */
        public static final String ACCESSIBILITY_DISPLAY_DALTONIZER =
                "accessibility_display_daltonizer";

        private static final Validator ACCESSIBILITY_DISPLAY_DALTONIZER_VALIDATOR =
                new SettingsValidators.DiscreteValueValidator(
                        new String[] {"-1", "0", "11", "12", "13"});

        
Setting that specifies whether automatic click when the mouse pointer stops moving is
enabled.

@hide
/**
         * Setting that specifies whether automatic click when the mouse pointer stops moving is
         * enabled.
         *
         * @hide
         */
        public static final String ACCESSIBILITY_AUTOCLICK_ENABLED =
                "accessibility_autoclick_enabled";

        private static final Validator ACCESSIBILITY_AUTOCLICK_ENABLED_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Integer setting specifying amount of time in ms the mouse pointer has to stay still before performing click when ACCESSIBILITY_AUTOCLICK_ENABLED is set. 
See Also:
@hide
/**
         * Integer setting specifying amount of time in ms the mouse pointer has to stay still
         * before performing click when {@link #ACCESSIBILITY_AUTOCLICK_ENABLED} is set.
         *
         * @see #ACCESSIBILITY_AUTOCLICK_ENABLED
         * @hide
         */
        public static final String ACCESSIBILITY_AUTOCLICK_DELAY =
                "accessibility_autoclick_delay";

        private static final Validator ACCESSIBILITY_AUTOCLICK_DELAY_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
Whether or not larger size icons are used for the pointer of mouse/trackpad for
accessibility.
(0 = false, 1 = true)

@hide
/**
         * Whether or not larger size icons are used for the pointer of mouse/trackpad for
         * accessibility.
         * (0 = false, 1 = true)
         * @hide
         */
        public static final String ACCESSIBILITY_LARGE_POINTER_ICON =
                "accessibility_large_pointer_icon";

        private static final Validator ACCESSIBILITY_LARGE_POINTER_ICON_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
The timeout for considering a press to be a long press in milliseconds.

@hide
/**
         * The timeout for considering a press to be a long press in milliseconds.
         * @hide
         */
        public static final String LONG_PRESS_TIMEOUT = "long_press_timeout";

        private static final Validator LONG_PRESS_TIMEOUT_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
The duration in milliseconds between the first tap's up event and the second tap's
down event for an interaction to be considered part of the same multi-press.

@hide
/**
         * The duration in milliseconds between the first tap's up event and the second tap's
         * down event for an interaction to be considered part of the same multi-press.
         * @hide
         */
        public static final String MULTI_PRESS_TIMEOUT = "multi_press_timeout";

        
List of the enabled print services. N and beyond uses DISABLED_PRINT_SERVICES. But this might be used in an upgrade from pre-N. 
@hide
/**
         * List of the enabled print services.
         *
         * N and beyond uses {@link #DISABLED_PRINT_SERVICES}. But this might be used in an upgrade
         * from pre-N.
         *
         * @hide
         */
        public static final String ENABLED_PRINT_SERVICES =
            "enabled_print_services";

        
List of the disabled print services.

@hide
/**
         * List of the disabled print services.
         *
         * @hide
         */
        @TestApi
        public static final String DISABLED_PRINT_SERVICES =
            "disabled_print_services";

        
The saved value for WindowManagerService.setForcedDisplayDensity()
formatted as a single integer representing DPI. If unset, then use
the real display density.

@hide
/**
         * The saved value for WindowManagerService.setForcedDisplayDensity()
         * formatted as a single integer representing DPI. If unset, then use
         * the real display density.
         *
         * @hide
         */
        public static final String DISPLAY_DENSITY_FORCED = "display_density_forced";

        
Setting to always use the default text-to-speech settings regardless
of the application settings.
1 = override application settings,
0 = use application settings (if specified).

Deprecated: The value of this setting is no longer respected by
the framework text to speech APIs as of the Ice Cream Sandwich release.
/**
         * Setting to always use the default text-to-speech settings regardless
         * of the application settings.
         * 1 = override application settings,
         * 0 = use application settings (if specified).
         *
         * @deprecated  The value of this setting is no longer respected by
         * the framework text to speech APIs as of the Ice Cream Sandwich release.
         */
        @Deprecated
        public static final String TTS_USE_DEFAULTS = "tts_use_defaults";

        
Default text-to-speech engine speech rate. 100 = 1x

/**
         * Default text-to-speech engine speech rate. 100 = 1x
         */
        public static final String TTS_DEFAULT_RATE = "tts_default_rate";

        private static final Validator TTS_DEFAULT_RATE_VALIDATOR = NON_NEGATIVE_INTEGER_VALIDATOR;

        
Default text-to-speech engine pitch. 100 = 1x

/**
         * Default text-to-speech engine pitch. 100 = 1x
         */
        public static final String TTS_DEFAULT_PITCH = "tts_default_pitch";

        private static final Validator TTS_DEFAULT_PITCH_VALIDATOR = NON_NEGATIVE_INTEGER_VALIDATOR;

        
Default text-to-speech engine.

/**
         * Default text-to-speech engine.
         */
        public static final String TTS_DEFAULT_SYNTH = "tts_default_synth";

        private static final Validator TTS_DEFAULT_SYNTH_VALIDATOR = PACKAGE_NAME_VALIDATOR;

        
Default text-to-speech language.

Deprecated:this setting is no longer in use, as of the Ice Cream Sandwich release. Apps should never need to read this setting directly, instead can query the TextToSpeech framework classes for the default locale. TextToSpeech.getLanguage().
/**
         * Default text-to-speech language.
         *
         * @deprecated this setting is no longer in use, as of the Ice Cream
         * Sandwich release. Apps should never need to read this setting directly,
         * instead can query the TextToSpeech framework classes for the default
         * locale. {@link TextToSpeech#getLanguage()}.
         */
        @Deprecated
        public static final String TTS_DEFAULT_LANG = "tts_default_lang";

        
Default text-to-speech country.

Deprecated:this setting is no longer in use, as of the Ice Cream Sandwich release. Apps should never need to read this setting directly, instead can query the TextToSpeech framework classes for the default locale. TextToSpeech.getLanguage().
/**
         * Default text-to-speech country.
         *
         * @deprecated this setting is no longer in use, as of the Ice Cream
         * Sandwich release. Apps should never need to read this setting directly,
         * instead can query the TextToSpeech framework classes for the default
         * locale. {@link TextToSpeech#getLanguage()}.
         */
        @Deprecated
        public static final String TTS_DEFAULT_COUNTRY = "tts_default_country";

        
Default text-to-speech locale variant.

Deprecated:this setting is no longer in use, as of the Ice Cream Sandwich release. Apps should never need to read this setting directly, instead can query the TextToSpeech framework classes for the locale that is in use TextToSpeech.getLanguage().
/**
         * Default text-to-speech locale variant.
         *
         * @deprecated this setting is no longer in use, as of the Ice Cream
         * Sandwich release. Apps should never need to read this setting directly,
         * instead can query the TextToSpeech framework classes for the
         * locale that is in use {@link TextToSpeech#getLanguage()}.
         */
        @Deprecated
        public static final String TTS_DEFAULT_VARIANT = "tts_default_variant";

        
Stores the default tts locales on a per engine basis. Stored as a comma seperated list of values, each value being of the form engine_name:locale for example, com.foo.ttsengine:eng-USA,com.bar.ttsengine:esp-ESP. This supersedes TTS_DEFAULT_LANG, TTS_DEFAULT_COUNTRY and TTS_DEFAULT_VARIANT. Apps should never need to read this setting directly, and can query the TextToSpeech framework classes for the locale that is in use. 
@hide
/**
         * Stores the default tts locales on a per engine basis. Stored as
         * a comma seperated list of values, each value being of the form
         * {@code engine_name:locale} for example,
         * {@code com.foo.ttsengine:eng-USA,com.bar.ttsengine:esp-ESP}. This
         * supersedes {@link #TTS_DEFAULT_LANG}, {@link #TTS_DEFAULT_COUNTRY} and
         * {@link #TTS_DEFAULT_VARIANT}. Apps should never need to read this
         * setting directly, and can query the TextToSpeech framework classes
         * for the locale that is in use.
         *
         * @hide
         */
        public static final String TTS_DEFAULT_LOCALE = "tts_default_locale";

        private static final Validator TTS_DEFAULT_LOCALE_VALIDATOR = new Validator() {
            @Override
            public boolean validate(@Nullable String value) {
                if (value == null || value.length() == 0) {
                    return false;
                }
                String[] ttsLocales = value.split(",");
                boolean valid = true;
                for (String ttsLocale : ttsLocales) {
                    String[] parts = ttsLocale.split(":");
                    valid |= ((parts.length == 2)
                            && (parts[0].length() > 0)
                            && ANY_STRING_VALIDATOR.validate(parts[0])
                            && LOCALE_VALIDATOR.validate(parts[1]));
                }
                return valid;
            }
        };

        
Space delimited list of plugin packages that are enabled.

/**
         * Space delimited list of plugin packages that are enabled.
         */
        public static final String TTS_ENABLED_PLUGINS = "tts_enabled_plugins";

        private static final Validator TTS_ENABLED_PLUGINS_VALIDATOR =
                new SettingsValidators.PackageNameListValidator(" ");

        
Deprecated:Use Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON instead.
/**
         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON}
         * instead.
         */
        @Deprecated
        public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
                Global.WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON;

        private static final Validator WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Deprecated:Use Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY instead.
/**
         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY}
         * instead.
         */
        @Deprecated
        public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
                Global.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY;

        private static final Validator WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
Deprecated:Use Global.WIFI_NUM_OPEN_NETWORKS_KEPT instead.
/**
         * @deprecated Use {@link android.provider.Settings.Global#WIFI_NUM_OPEN_NETWORKS_KEPT}
         * instead.
         */
        @Deprecated
        public static final String WIFI_NUM_OPEN_NETWORKS_KEPT =
                Global.WIFI_NUM_OPEN_NETWORKS_KEPT;

        private static final Validator WIFI_NUM_OPEN_NETWORKS_KEPT_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
Deprecated:Use Global.WIFI_ON instead.
/**
         * @deprecated Use {@link android.provider.Settings.Global#WIFI_ON}
         * instead.
         */
        @Deprecated
        public static final String WIFI_ON = Global.WIFI_ON;

        
The acceptable packet loss percentage (range 0 - 100) before trying
another AP on the same network.

Deprecated:This setting is not used.
/**
         * The acceptable packet loss percentage (range 0 - 100) before trying
         * another AP on the same network.
         * @deprecated This setting is not used.
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_ACCEPTABLE_PACKET_LOSS_PERCENTAGE =
                "wifi_watchdog_acceptable_packet_loss_percentage";

        
The number of access points required for a network in order for the
watchdog to monitor it.

Deprecated:This setting is not used.
/**
         * The number of access points required for a network in order for the
         * watchdog to monitor it.
         * @deprecated This setting is not used.
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_AP_COUNT = "wifi_watchdog_ap_count";

        
The delay between background checks.

Deprecated:This setting is not used.
/**
         * The delay between background checks.
         * @deprecated This setting is not used.
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_DELAY_MS =
                "wifi_watchdog_background_check_delay_ms";

        
Whether the Wi-Fi watchdog is enabled for background checking even
after it thinks the user has connected to a good access point.

Deprecated:This setting is not used.
/**
         * Whether the Wi-Fi watchdog is enabled for background checking even
         * after it thinks the user has connected to a good access point.
         * @deprecated This setting is not used.
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_ENABLED =
                "wifi_watchdog_background_check_enabled";

        
The timeout for a background ping

Deprecated:This setting is not used.
/**
         * The timeout for a background ping
         * @deprecated This setting is not used.
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_BACKGROUND_CHECK_TIMEOUT_MS =
                "wifi_watchdog_background_check_timeout_ms";

        
The number of initial pings to perform that *may* be ignored if they
fail. Again, if these fail, they will *not* be used in packet loss
calculation. For example, one network always seemed to time out for
the first couple pings, so this is set to 3 by default.

Deprecated:This setting is not used.
/**
         * The number of initial pings to perform that *may* be ignored if they
         * fail. Again, if these fail, they will *not* be used in packet loss
         * calculation. For example, one network always seemed to time out for
         * the first couple pings, so this is set to 3 by default.
         * @deprecated This setting is not used.
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_INITIAL_IGNORED_PING_COUNT =
            "wifi_watchdog_initial_ignored_ping_count";

        
The maximum number of access points (per network) to attempt to test.
If this number is reached, the watchdog will no longer monitor the
initial connection state for the network. This is a safeguard for
networks containing multiple APs whose DNS does not respond to pings.

Deprecated:This setting is not used.
/**
         * The maximum number of access points (per network) to attempt to test.
         * If this number is reached, the watchdog will no longer monitor the
         * initial connection state for the network. This is a safeguard for
         * networks containing multiple APs whose DNS does not respond to pings.
         * @deprecated This setting is not used.
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_MAX_AP_CHECKS = "wifi_watchdog_max_ap_checks";

        
Deprecated:Use Global.WIFI_WATCHDOG_ON instead
/**
         * @deprecated Use {@link android.provider.Settings.Global#WIFI_WATCHDOG_ON} instead
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";

        
A comma-separated list of SSIDs for which the Wi-Fi watchdog should be enabled.

Deprecated:This setting is not used.
/**
         * A comma-separated list of SSIDs for which the Wi-Fi watchdog should be enabled.
         * @deprecated This setting is not used.
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_WATCH_LIST = "wifi_watchdog_watch_list";

        
The number of pings to test if an access point is a good connection.

Deprecated:This setting is not used.
/**
         * The number of pings to test if an access point is a good connection.
         * @deprecated This setting is not used.
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_PING_COUNT = "wifi_watchdog_ping_count";

        
The delay between pings.

Deprecated:This setting is not used.
/**
         * The delay between pings.
         * @deprecated This setting is not used.
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_PING_DELAY_MS = "wifi_watchdog_ping_delay_ms";

        
The timeout per ping.

Deprecated:This setting is not used.
/**
         * The timeout per ping.
         * @deprecated This setting is not used.
         */
        @Deprecated
        public static final String WIFI_WATCHDOG_PING_TIMEOUT_MS = "wifi_watchdog_ping_timeout_ms";

        
Deprecated:Use Global.WIFI_MAX_DHCP_RETRY_COUNT instead
/**
         * @deprecated Use
         * {@link android.provider.Settings.Global#WIFI_MAX_DHCP_RETRY_COUNT} instead
         */
        @Deprecated
        public static final String WIFI_MAX_DHCP_RETRY_COUNT = Global.WIFI_MAX_DHCP_RETRY_COUNT;

        
Deprecated:Use Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS instead
/**
         * @deprecated Use
         * {@link android.provider.Settings.Global#WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS} instead
         */
        @Deprecated
        public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
                Global.WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS;

        
The number of milliseconds to hold on to a PendingIntent based request. This delay gives
the receivers of the PendingIntent an opportunity to make a new network request before
the Network satisfying the request is potentially removed.

@hide
/**
         * The number of milliseconds to hold on to a PendingIntent based request. This delay gives
         * the receivers of the PendingIntent an opportunity to make a new network request before
         * the Network satisfying the request is potentially removed.
         *
         * @hide
         */
        public static final String CONNECTIVITY_RELEASE_PENDING_INTENT_DELAY_MS =
                "connectivity_release_pending_intent_delay_ms";

        
Whether background data usage is allowed.

Deprecated:As of VERSION_CODES.ICE_CREAM_SANDWICH, availability of background data depends on several combined factors. When background data is unavailable, ConnectivityManager.getActiveNetworkInfo() will now appear disconnected.
/**
         * Whether background data usage is allowed.
         *
         * @deprecated As of {@link VERSION_CODES#ICE_CREAM_SANDWICH},
         *             availability of background data depends on several
         *             combined factors. When background data is unavailable,
         *             {@link ConnectivityManager#getActiveNetworkInfo()} will
         *             now appear disconnected.
         */
        @Deprecated
        public static final String BACKGROUND_DATA = "background_data";

        
Origins for which browsers should allow geolocation by default.
The value is a space-separated list of origins.

/**
         * Origins for which browsers should allow geolocation by default.
         * The value is a space-separated list of origins.
         */
        public static final String ALLOWED_GEOLOCATION_ORIGINS
                = "allowed_geolocation_origins";

        
The preferred TTY mode     0 = TTy Off, CDMA default
                           1 = TTY Full
                           2 = TTY HCO
                           3 = TTY VCO

@hide
/**
         * The preferred TTY mode     0 = TTy Off, CDMA default
         *                            1 = TTY Full
         *                            2 = TTY HCO
         *                            3 = TTY VCO
         * @hide
         */
        public static final String PREFERRED_TTY_MODE =
                "preferred_tty_mode";

        private static final Validator PREFERRED_TTY_MODE_VALIDATOR =
                new SettingsValidators.DiscreteValueValidator(new String[]{"0", "1", "2", "3"});

        
Whether the enhanced voice privacy mode is enabled.
0 = normal voice privacy
1 = enhanced voice privacy

@hide
/**
         * Whether the enhanced voice privacy mode is enabled.
         * 0 = normal voice privacy
         * 1 = enhanced voice privacy
         * @hide
         */
        public static final String ENHANCED_VOICE_PRIVACY_ENABLED = "enhanced_voice_privacy_enabled";

        private static final Validator ENHANCED_VOICE_PRIVACY_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether the TTY mode mode is enabled.
0 = disabled
1 = enabled

@hide
/**
         * Whether the TTY mode mode is enabled.
         * 0 = disabled
         * 1 = enabled
         * @hide
         */
        public static final String TTY_MODE_ENABLED = "tty_mode_enabled";

        private static final Validator TTY_MODE_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
User-selected RTT mode. When on, outgoing and incoming calls will be answered as RTT
calls when supported by the device and carrier. Boolean value.
0 = OFF
1 = ON

/**
         * User-selected RTT mode. When on, outgoing and incoming calls will be answered as RTT
         * calls when supported by the device and carrier. Boolean value.
         * 0 = OFF
         * 1 = ON
         */
        public static final String RTT_CALLING_MODE = "rtt_calling_mode";

        private static final Validator RTT_CALLING_MODE_VALIDATOR = BOOLEAN_VALIDATOR;

        
/**
Controls whether settings backup is enabled.
Type: int ( 0 = disabled, 1 = enabled )

@hide
/**
        /**
         * Controls whether settings backup is enabled.
         * Type: int ( 0 = disabled, 1 = enabled )
         * @hide
         */
        public static final String BACKUP_ENABLED = "backup_enabled";

        
Controls whether application data is automatically restored from backup
at install time.
Type: int ( 0 = disabled, 1 = enabled )

@hide
/**
         * Controls whether application data is automatically restored from backup
         * at install time.
         * Type: int ( 0 = disabled, 1 = enabled )
         * @hide
         */
        public static final String BACKUP_AUTO_RESTORE = "backup_auto_restore";

        
Indicates whether settings backup has been fully provisioned.
Type: int ( 0 = unprovisioned, 1 = fully provisioned )

@hide
/**
         * Indicates whether settings backup has been fully provisioned.
         * Type: int ( 0 = unprovisioned, 1 = fully provisioned )
         * @hide
         */
        public static final String BACKUP_PROVISIONED = "backup_provisioned";

        
Component of the transport to use for backup/restore.

@hide
/**
         * Component of the transport to use for backup/restore.
         * @hide
         */
        public static final String BACKUP_TRANSPORT = "backup_transport";

        
Version for which the setup wizard was last shown.  Bumped for
each release when there is new setup information to show.

@hide
/**
         * Version for which the setup wizard was last shown.  Bumped for
         * each release when there is new setup information to show.
         * @hide
         */
        public static final String LAST_SETUP_SHOWN = "last_setup_shown";

        
The interval in milliseconds after which Wi-Fi is considered idle.
When idle, it is possible for the device to be switched from Wi-Fi to
the mobile data network.

@hide
Deprecated:Use Global.WIFI_IDLE_MS instead.
/**
         * The interval in milliseconds after which Wi-Fi is considered idle.
         * When idle, it is possible for the device to be switched from Wi-Fi to
         * the mobile data network.
         * @hide
         * @deprecated Use {@link android.provider.Settings.Global#WIFI_IDLE_MS}
         * instead.
         */
        @Deprecated
        public static final String WIFI_IDLE_MS = Global.WIFI_IDLE_MS;

        
The global search provider chosen by the user (if multiple global search providers are installed). This will be the provider returned by SearchManager.getGlobalSearchActivity() if it's still installed. This setting is stored as a flattened component name as per ComponentName.flattenToString(). 
@hide
/**
         * The global search provider chosen by the user (if multiple global
         * search providers are installed). This will be the provider returned
         * by {@link SearchManager#getGlobalSearchActivity()} if it's still
         * installed. This setting is stored as a flattened component name as
         * per {@link ComponentName#flattenToString()}.
         *
         * @hide
         */
        public static final String SEARCH_GLOBAL_SEARCH_ACTIVITY =
                "search_global_search_activity";

        
The number of promoted sources in GlobalSearch.

@hide
/**
         * The number of promoted sources in GlobalSearch.
         * @hide
         */
        public static final String SEARCH_NUM_PROMOTED_SOURCES = "search_num_promoted_sources";
        
The maximum number of suggestions returned by GlobalSearch.

@hide
/**
         * The maximum number of suggestions returned by GlobalSearch.
         * @hide
         */
        public static final String SEARCH_MAX_RESULTS_TO_DISPLAY = "search_max_results_to_display";
        
The number of suggestions GlobalSearch will ask each non-web search source for.

@hide
/**
         * The number of suggestions GlobalSearch will ask each non-web search source for.
         * @hide
         */
        public static final String SEARCH_MAX_RESULTS_PER_SOURCE = "search_max_results_per_source";
        
The number of suggestions the GlobalSearch will ask the web search source for.

@hide
/**
         * The number of suggestions the GlobalSearch will ask the web search source for.
         * @hide
         */
        public static final String SEARCH_WEB_RESULTS_OVERRIDE_LIMIT =
                "search_web_results_override_limit";
        
The number of milliseconds that GlobalSearch will wait for suggestions from
promoted sources before continuing with all other sources.

@hide
/**
         * The number of milliseconds that GlobalSearch will wait for suggestions from
         * promoted sources before continuing with all other sources.
         * @hide
         */
        public static final String SEARCH_PROMOTED_SOURCE_DEADLINE_MILLIS =
                "search_promoted_source_deadline_millis";
        
The number of milliseconds before GlobalSearch aborts search suggesiton queries.

@hide
/**
         * The number of milliseconds before GlobalSearch aborts search suggesiton queries.
         * @hide
         */
        public static final String SEARCH_SOURCE_TIMEOUT_MILLIS = "search_source_timeout_millis";
        
The maximum number of milliseconds that GlobalSearch shows the previous results
after receiving a new query.

@hide
/**
         * The maximum number of milliseconds that GlobalSearch shows the previous results
         * after receiving a new query.
         * @hide
         */
        public static final String SEARCH_PREFILL_MILLIS = "search_prefill_millis";
        
The maximum age of log data used for shortcuts in GlobalSearch.

@hide
/**
         * The maximum age of log data used for shortcuts in GlobalSearch.
         * @hide
         */
        public static final String SEARCH_MAX_STAT_AGE_MILLIS = "search_max_stat_age_millis";
        
The maximum age of log data used for source ranking in GlobalSearch.

@hide
/**
         * The maximum age of log data used for source ranking in GlobalSearch.
         * @hide
         */
        public static final String SEARCH_MAX_SOURCE_EVENT_AGE_MILLIS =
                "search_max_source_event_age_millis";
        
The minimum number of impressions needed to rank a source in GlobalSearch.

@hide
/**
         * The minimum number of impressions needed to rank a source in GlobalSearch.
         * @hide
         */
        public static final String SEARCH_MIN_IMPRESSIONS_FOR_SOURCE_RANKING =
                "search_min_impressions_for_source_ranking";
        
The minimum number of clicks needed to rank a source in GlobalSearch.

@hide
/**
         * The minimum number of clicks needed to rank a source in GlobalSearch.
         * @hide
         */
        public static final String SEARCH_MIN_CLICKS_FOR_SOURCE_RANKING =
                "search_min_clicks_for_source_ranking";
        
The maximum number of shortcuts shown by GlobalSearch.

@hide
/**
         * The maximum number of shortcuts shown by GlobalSearch.
         * @hide
         */
        public static final String SEARCH_MAX_SHORTCUTS_RETURNED = "search_max_shortcuts_returned";
        
The size of the core thread pool for suggestion queries in GlobalSearch.

@hide
/**
         * The size of the core thread pool for suggestion queries in GlobalSearch.
         * @hide
         */
        public static final String SEARCH_QUERY_THREAD_CORE_POOL_SIZE =
                "search_query_thread_core_pool_size";
        
The maximum size of the thread pool for suggestion queries in GlobalSearch.

@hide
/**
         * The maximum size of the thread pool for suggestion queries in GlobalSearch.
         * @hide
         */
        public static final String SEARCH_QUERY_THREAD_MAX_POOL_SIZE =
                "search_query_thread_max_pool_size";
        
The size of the core thread pool for shortcut refreshing in GlobalSearch.

@hide
/**
         * The size of the core thread pool for shortcut refreshing in GlobalSearch.
         * @hide
         */
        public static final String SEARCH_SHORTCUT_REFRESH_CORE_POOL_SIZE =
                "search_shortcut_refresh_core_pool_size";
        
The maximum size of the thread pool for shortcut refreshing in GlobalSearch.

@hide
/**
         * The maximum size of the thread pool for shortcut refreshing in GlobalSearch.
         * @hide
         */
        public static final String SEARCH_SHORTCUT_REFRESH_MAX_POOL_SIZE =
                "search_shortcut_refresh_max_pool_size";
        
The maximun time that excess threads in the GlobalSeach thread pools will
wait before terminating.

@hide
/**
         * The maximun time that excess threads in the GlobalSeach thread pools will
         * wait before terminating.
         * @hide
         */
        public static final String SEARCH_THREAD_KEEPALIVE_SECONDS =
                "search_thread_keepalive_seconds";
        
The maximum number of concurrent suggestion queries to each source.

@hide
/**
         * The maximum number of concurrent suggestion queries to each source.
         * @hide
         */
        public static final String SEARCH_PER_SOURCE_CONCURRENT_QUERY_LIMIT =
                "search_per_source_concurrent_query_limit";

        
Whether or not alert sounds are played on StorageManagerService events.
(0 = false, 1 = true)

@hide
/**
         * Whether or not alert sounds are played on StorageManagerService events.
         * (0 = false, 1 = true)
         * @hide
         */
        public static final String MOUNT_PLAY_NOTIFICATION_SND = "mount_play_not_snd";

        private static final Validator MOUNT_PLAY_NOTIFICATION_SND_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether or not UMS auto-starts on UMS host detection. (0 = false, 1 = true)

@hide
/**
         * Whether or not UMS auto-starts on UMS host detection. (0 = false, 1 = true)
         * @hide
         */
        public static final String MOUNT_UMS_AUTOSTART = "mount_ums_autostart";

        private static final Validator MOUNT_UMS_AUTOSTART_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether or not a notification is displayed on UMS host detection. (0 = false, 1 = true)

@hide
/**
         * Whether or not a notification is displayed on UMS host detection. (0 = false, 1 = true)
         * @hide
         */
        public static final String MOUNT_UMS_PROMPT = "mount_ums_prompt";

        private static final Validator MOUNT_UMS_PROMPT_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether or not a notification is displayed while UMS is enabled. (0 = false, 1 = true)

@hide
/**
         * Whether or not a notification is displayed while UMS is enabled. (0 = false, 1 = true)
         * @hide
         */
        public static final String MOUNT_UMS_NOTIFY_ENABLED = "mount_ums_notify_enabled";

        private static final Validator MOUNT_UMS_NOTIFY_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
If nonzero, ANRs in invisible background processes bring up a dialog.
Otherwise, the process will be silently killed.
Also prevents ANRs and crash dialogs from being suppressed.

@hide
/**
         * If nonzero, ANRs in invisible background processes bring up a dialog.
         * Otherwise, the process will be silently killed.
         *
         * Also prevents ANRs and crash dialogs from being suppressed.
         * @hide
         */
        public static final String ANR_SHOW_BACKGROUND = "anr_show_background";

        
If nonzero, crashes in foreground processes will bring up a dialog.
Otherwise, the process will be silently killed.

@hide
/**
         * If nonzero, crashes in foreground processes will bring up a dialog.
         * Otherwise, the process will be silently killed.
         * @hide
         */
        public static final String SHOW_FIRST_CRASH_DIALOG_DEV_OPTION =
                "show_first_crash_dialog_dev_option";

        private static final Validator SHOW_FIRST_CRASH_DIALOG_DEV_OPTION_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
The ComponentName string of the service to be used as the voice recognition service. 
@hide
/**
         * The {@link ComponentName} string of the service to be used as the voice recognition
         * service.
         *
         * @hide
         */
        public static final String VOICE_RECOGNITION_SERVICE = "voice_recognition_service";

        
Stores whether an user has consented to have apps verified through PAM.
The value is boolean (1 or 0).

@hide
/**
         * Stores whether an user has consented to have apps verified through PAM.
         * The value is boolean (1 or 0).
         *
         * @hide
         */
        public static final String PACKAGE_VERIFIER_USER_CONSENT =
            "package_verifier_user_consent";

        
The ComponentName string of the selected spell checker service which is one of the services managed by the text service manager. 
@hide
/**
         * The {@link ComponentName} string of the selected spell checker service which is
         * one of the services managed by the text service manager.
         *
         * @hide
         */
        public static final String SELECTED_SPELL_CHECKER = "selected_spell_checker";

        private static final Validator SELECTED_SPELL_CHECKER_VALIDATOR = COMPONENT_NAME_VALIDATOR;

        
The ComponentName string of the selected subtype of the selected spell checker service which is one of the services managed by the text service manager. 
@hide
/**
         * The {@link ComponentName} string of the selected subtype of the selected spell checker
         * service which is one of the services managed by the text service manager.
         *
         * @hide
         */
        public static final String SELECTED_SPELL_CHECKER_SUBTYPE =
                "selected_spell_checker_subtype";

        private static final Validator SELECTED_SPELL_CHECKER_SUBTYPE_VALIDATOR =
                COMPONENT_NAME_VALIDATOR;

        
Whether spell checker is enabled or not.

@hide
/**
         * Whether spell checker is enabled or not.
         *
         * @hide
         */
        public static final String SPELL_CHECKER_ENABLED = "spell_checker_enabled";

        private static final Validator SPELL_CHECKER_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
What happens when the user presses the Power button while in-call
and the screen is on.

Values:

1 - The Power button turns off the screen and locks the device. (Default behavior)

2 - The Power button hangs up the current call.


@hide
/**
         * What happens when the user presses the Power button while in-call
         * and the screen is on.<br/>
         * <b>Values:</b><br/>
         * 1 - The Power button turns off the screen and locks the device. (Default behavior)<br/>
         * 2 - The Power button hangs up the current call.<br/>
         *
         * @hide
         */
        public static final String INCALL_POWER_BUTTON_BEHAVIOR = "incall_power_button_behavior";

        private static final Validator INCALL_POWER_BUTTON_BEHAVIOR_VALIDATOR =
                new SettingsValidators.DiscreteValueValidator(new String[]{"1", "2"});

        
INCALL_POWER_BUTTON_BEHAVIOR value for "turn off screen".

@hide
/**
         * INCALL_POWER_BUTTON_BEHAVIOR value for "turn off screen".
         * @hide
         */
        public static final int INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF = 0x1;

        
INCALL_POWER_BUTTON_BEHAVIOR value for "hang up".

@hide
/**
         * INCALL_POWER_BUTTON_BEHAVIOR value for "hang up".
         * @hide
         */
        public static final int INCALL_POWER_BUTTON_BEHAVIOR_HANGUP = 0x2;

        
INCALL_POWER_BUTTON_BEHAVIOR default value.

@hide
/**
         * INCALL_POWER_BUTTON_BEHAVIOR default value.
         * @hide
         */
        public static final int INCALL_POWER_BUTTON_BEHAVIOR_DEFAULT =
                INCALL_POWER_BUTTON_BEHAVIOR_SCREEN_OFF;

        
What happens when the user presses the Back button while in-call
and the screen is on.

Values:

0 - The Back buttons does nothing different.

1 - The Back button hangs up the current call.


@hide
/**
         * What happens when the user presses the Back button while in-call
         * and the screen is on.<br/>
         * <b>Values:</b><br/>
         * 0 - The Back buttons does nothing different.<br/>
         * 1 - The Back button hangs up the current call.<br/>
         *
         * @hide
         */
        public static final String INCALL_BACK_BUTTON_BEHAVIOR = "incall_back_button_behavior";

        
INCALL_BACK_BUTTON_BEHAVIOR value for no action.

@hide
/**
         * INCALL_BACK_BUTTON_BEHAVIOR value for no action.
         * @hide
         */
        public static final int INCALL_BACK_BUTTON_BEHAVIOR_NONE = 0x0;

        
INCALL_BACK_BUTTON_BEHAVIOR value for "hang up".

@hide
/**
         * INCALL_BACK_BUTTON_BEHAVIOR value for "hang up".
         * @hide
         */
        public static final int INCALL_BACK_BUTTON_BEHAVIOR_HANGUP = 0x1;

        
INCALL_POWER_BUTTON_BEHAVIOR default value.

@hide
/**
         * INCALL_POWER_BUTTON_BEHAVIOR default value.
         * @hide
         */
        public static final int INCALL_BACK_BUTTON_BEHAVIOR_DEFAULT =
                INCALL_BACK_BUTTON_BEHAVIOR_NONE;

        
Whether the device should wake when the wake gesture sensor detects motion.

@hide
/**
         * Whether the device should wake when the wake gesture sensor detects motion.
         * @hide
         */
        public static final String WAKE_GESTURE_ENABLED = "wake_gesture_enabled";

        private static final Validator WAKE_GESTURE_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether the device should doze if configured.

@hide
/**
         * Whether the device should doze if configured.
         * @hide
         */
        public static final String DOZE_ENABLED = "doze_enabled";

        private static final Validator DOZE_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether doze should be always on.

@hide
/**
         * Whether doze should be always on.
         * @hide
         */
        public static final String DOZE_ALWAYS_ON = "doze_always_on";

        
Whether the device should pulse on pick up gesture.

@hide
/**
         * Whether the device should pulse on pick up gesture.
         * @hide
         */
        public static final String DOZE_PULSE_ON_PICK_UP = "doze_pulse_on_pick_up";

        private static final Validator DOZE_PULSE_ON_PICK_UP_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether the device should pulse on long press gesture.

@hide
/**
         * Whether the device should pulse on long press gesture.
         * @hide
         */
        public static final String DOZE_PULSE_ON_LONG_PRESS = "doze_pulse_on_long_press";

        
Whether the device should pulse on double tap gesture.

@hide
/**
         * Whether the device should pulse on double tap gesture.
         * @hide
         */
        public static final String DOZE_PULSE_ON_DOUBLE_TAP = "doze_pulse_on_double_tap";

        private static final Validator DOZE_PULSE_ON_DOUBLE_TAP_VALIDATOR = BOOLEAN_VALIDATOR;

        
The current night mode that has been selected by the user.  Owned
and controlled by UiModeManagerService.  Constants are as per
UiModeManager.

@hide
/**
         * The current night mode that has been selected by the user.  Owned
         * and controlled by UiModeManagerService.  Constants are as per
         * UiModeManager.
         * @hide
         */
        public static final String UI_NIGHT_MODE = "ui_night_mode";

        
The current device UI theme mode effect SystemUI and Launcher.

Values:

0 - The mode that theme will controlled by wallpaper color.

1 - The mode that will always light theme.

2 - The mode that will always dark theme.


@hide
/**
         * The current device UI theme mode effect SystemUI and Launcher.<br/>
         * <b>Values:</b><br/>
         * 0 - The mode that theme will controlled by wallpaper color.<br/>
         * 1 - The mode that will always light theme.<br/>
         * 2 - The mode that will always dark theme.<br/>
         *
         * @hide
         */
        public static final String THEME_MODE = "theme_mode";

        
THEME_MODE value for wallpaper mode.

@hide
/**
         * THEME_MODE value for wallpaper mode.
         * @hide
         */
        public static final int THEME_MODE_WALLPAPER = 0;

        
THEME_MODE value for light theme mode.

@hide
/**
         * THEME_MODE value for light theme mode.
         * @hide
         */
        public static final int THEME_MODE_LIGHT = 1;

        
THEME_MODE value for dark theme mode.

@hide
/**
         * THEME_MODE value for dark theme mode.
         * @hide
         */
        public static final int THEME_MODE_DARK = 2;

        
Whether screensavers are enabled.

@hide
/**
         * Whether screensavers are enabled.
         * @hide
         */
        public static final String SCREENSAVER_ENABLED = "screensaver_enabled";

        private static final Validator SCREENSAVER_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
The user's chosen screensaver components.
These will be launched by the PhoneWindowManager after a timeout when not on
battery, or upon dock insertion (if SCREENSAVER_ACTIVATE_ON_DOCK is set to 1).

@hide
/**
         * The user's chosen screensaver components.
         *
         * These will be launched by the PhoneWindowManager after a timeout when not on
         * battery, or upon dock insertion (if SCREENSAVER_ACTIVATE_ON_DOCK is set to 1).
         * @hide
         */
        public static final String SCREENSAVER_COMPONENTS = "screensaver_components";

        private static final Validator SCREENSAVER_COMPONENTS_VALIDATOR =
                new SettingsValidators.ComponentNameListValidator(",");

        
If screensavers are enabled, whether the screensaver should be automatically launched
when the device is inserted into a (desk) dock.

@hide
/**
         * If screensavers are enabled, whether the screensaver should be automatically launched
         * when the device is inserted into a (desk) dock.
         * @hide
         */
        public static final String SCREENSAVER_ACTIVATE_ON_DOCK = "screensaver_activate_on_dock";

        private static final Validator SCREENSAVER_ACTIVATE_ON_DOCK_VALIDATOR = BOOLEAN_VALIDATOR;

        
If screensavers are enabled, whether the screensaver should be automatically launched
when the screen times out when not on battery.

@hide
/**
         * If screensavers are enabled, whether the screensaver should be automatically launched
         * when the screen times out when not on battery.
         * @hide
         */
        public static final String SCREENSAVER_ACTIVATE_ON_SLEEP = "screensaver_activate_on_sleep";

        private static final Validator SCREENSAVER_ACTIVATE_ON_SLEEP_VALIDATOR = BOOLEAN_VALIDATOR;

        
If screensavers are enabled, the default screensaver component.

@hide
/**
         * If screensavers are enabled, the default screensaver component.
         * @hide
         */
        public static final String SCREENSAVER_DEFAULT_COMPONENT = "screensaver_default_component";

        
The default NFC payment component

@hide
/**
         * The default NFC payment component
         * @hide
         */
        public static final String NFC_PAYMENT_DEFAULT_COMPONENT = "nfc_payment_default_component";

        private static final Validator NFC_PAYMENT_DEFAULT_COMPONENT_VALIDATOR =
                COMPONENT_NAME_VALIDATOR;

        
Whether NFC payment is handled by the foreground application or a default.

@hide
/**
         * Whether NFC payment is handled by the foreground application or a default.
         * @hide
         */
        public static final String NFC_PAYMENT_FOREGROUND = "nfc_payment_foreground";

        
Specifies the package name currently configured to be the primary sms application

@hide
/**
         * Specifies the package name currently configured to be the primary sms application
         * @hide
         */
        public static final String SMS_DEFAULT_APPLICATION = "sms_default_application";

        
Specifies the package name currently configured to be the default dialer application

@hide
/**
         * Specifies the package name currently configured to be the default dialer application
         * @hide
         */
        public static final String DIALER_DEFAULT_APPLICATION = "dialer_default_application";

        
Specifies the package name currently configured to be the emergency assistance application

See Also:
  • ACTION_EMERGENCY_ASSISTANCE.ACTION_EMERGENCY_ASSISTANCE
@hide
/**
         * Specifies the package name currently configured to be the emergency assistance application
         *
         * @see android.telephony.TelephonyManager#ACTION_EMERGENCY_ASSISTANCE
         *
         * @hide
         */
        public static final String EMERGENCY_ASSISTANCE_APPLICATION = "emergency_assistance_application";

        
Specifies whether the current app context on scren (assist data) will be sent to the
assist application (active voice interaction service).

@hide
/**
         * Specifies whether the current app context on scren (assist data) will be sent to the
         * assist application (active voice interaction service).
         *
         * @hide
         */
        public static final String ASSIST_STRUCTURE_ENABLED = "assist_structure_enabled";

        
Specifies whether a screenshot of the screen contents will be sent to the assist
application (active voice interaction service).

@hide
/**
         * Specifies whether a screenshot of the screen contents will be sent to the assist
         * application (active voice interaction service).
         *
         * @hide
         */
        public static final String ASSIST_SCREENSHOT_ENABLED = "assist_screenshot_enabled";

        
Specifies whether the screen will show an animation if screen contents are sent to the
assist application (active voice interaction service).
Note that the disclosure will be forced for third-party assistants or if the device
does not support disabling it.

@hide
/**
         * Specifies whether the screen will show an animation if screen contents are sent to the
         * assist application (active voice interaction service).
         *
         * Note that the disclosure will be forced for third-party assistants or if the device
         * does not support disabling it.
         *
         * @hide
         */
        public static final String ASSIST_DISCLOSURE_ENABLED = "assist_disclosure_enabled";

        
Control if rotation suggestions are sent to System UI when in rotation locked mode.
Done to enable screen rotation while the the screen rotation is locked. Enabling will
poll the accelerometer in rotation locked mode.
If 0, then rotation suggestions are not sent to System UI. If 1, suggestions are sent.

@hide
/**
         * Control if rotation suggestions are sent to System UI when in rotation locked mode.
         * Done to enable screen rotation while the the screen rotation is locked. Enabling will
         * poll the accelerometer in rotation locked mode.
         *
         * If 0, then rotation suggestions are not sent to System UI. If 1, suggestions are sent.
         *
         * @hide
         */

        public static final String SHOW_ROTATION_SUGGESTIONS = "show_rotation_suggestions";

        
The disabled state of SHOW_ROTATION_SUGGESTIONS.

@hide
/**
         * The disabled state of SHOW_ROTATION_SUGGESTIONS.
         * @hide
         */
        public static final int SHOW_ROTATION_SUGGESTIONS_DISABLED = 0x0;

        
The enabled state of SHOW_ROTATION_SUGGESTIONS.

@hide
/**
         * The enabled state of SHOW_ROTATION_SUGGESTIONS.
         * @hide
         */
        public static final int SHOW_ROTATION_SUGGESTIONS_ENABLED = 0x1;

        
The default state of SHOW_ROTATION_SUGGESTIONS.

@hide
/**
         * The default state of SHOW_ROTATION_SUGGESTIONS.
         * @hide
         */
        public static final int SHOW_ROTATION_SUGGESTIONS_DEFAULT =
                SHOW_ROTATION_SUGGESTIONS_ENABLED;

        
The number of accepted rotation suggestions. Used to determine if the user has been
introduced to rotation suggestions.

@hide
/**
         * The number of accepted rotation suggestions. Used to determine if the user has been
         * introduced to rotation suggestions.
         * @hide
         */
        public static final String NUM_ROTATION_SUGGESTIONS_ACCEPTED =
                "num_rotation_suggestions_accepted";

        
Read only list of the service components that the current user has explicitly allowed to
see and assist with all of the user's notifications.

Deprecated:Use NotificationManager.isNotificationListenerAccessGranted(ComponentName).
@hide
/**
         * Read only list of the service components that the current user has explicitly allowed to
         * see and assist with all of the user's notifications.
         *
         * @deprecated Use
         * {@link NotificationManager#isNotificationListenerAccessGranted(ComponentName)}.
         * @hide
         */
        @Deprecated
        public static final String ENABLED_NOTIFICATION_ASSISTANT =
                "enabled_notification_assistant";

        private static final Validator ENABLED_NOTIFICATION_ASSISTANT_VALIDATOR =
                new SettingsValidators.ComponentNameListValidator(":");

        
Read only list of the service components that the current user has explicitly allowed to
see all of the user's notifications, separated by ':'.

@hide
Deprecated:Use NotificationManager.isNotificationAssistantAccessGranted(ComponentName).
/**
         * Read only list of the service components that the current user has explicitly allowed to
         * see all of the user's notifications, separated by ':'.
         *
         * @hide
         * @deprecated Use
         * {@link NotificationManager#isNotificationAssistantAccessGranted(ComponentName)}.
         */
        @Deprecated
        public static final String ENABLED_NOTIFICATION_LISTENERS = "enabled_notification_listeners";

        private static final Validator ENABLED_NOTIFICATION_LISTENERS_VALIDATOR =
                new SettingsValidators.ComponentNameListValidator(":");

        
Read only list of the packages that the current user has explicitly allowed to
manage do not disturb, separated by ':'.

Deprecated:Use NotificationManager.isNotificationPolicyAccessGranted().
@hide
/**
         * Read only list of the packages that the current user has explicitly allowed to
         * manage do not disturb, separated by ':'.
         *
         * @deprecated Use {@link NotificationManager#isNotificationPolicyAccessGranted()}.
         * @hide
         */
        @Deprecated
        @TestApi
        public static final String ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES =
                "enabled_notification_policy_access_packages";

        private static final Validator ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES_VALIDATOR =
                new SettingsValidators.PackageNameListValidator(":");

        
Defines whether managed profile ringtones should be synced from it's parent profile


0 = ringtones are not synced
1 = ringtones are synced from the profile's parent (default)


This value is only used for managed profiles.

@hide
/**
         * Defines whether managed profile ringtones should be synced from it's parent profile
         * <p>
         * 0 = ringtones are not synced
         * 1 = ringtones are synced from the profile's parent (default)
         * <p>
         * This value is only used for managed profiles.
         * @hide
         */
        @TestApi
        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
        public static final String SYNC_PARENT_SOUNDS = "sync_parent_sounds";

        private static final Validator SYNC_PARENT_SOUNDS_VALIDATOR = BOOLEAN_VALIDATOR;

        
@hide
/** @hide */
        public static final String IMMERSIVE_MODE_CONFIRMATIONS = "immersive_mode_confirmations";

        
This is the query URI for finding a print service to install.

@hide
/**
         * This is the query URI for finding a print service to install.
         *
         * @hide
         */
        public static final String PRINT_SERVICE_SEARCH_URI = "print_service_search_uri";

        
This is the query URI for finding a NFC payment service to install.

@hide
/**
         * This is the query URI for finding a NFC payment service to install.
         *
         * @hide
         */
        public static final String PAYMENT_SERVICE_SEARCH_URI = "payment_service_search_uri";

        
This is the query URI for finding a auto fill service to install.

@hide
/**
         * This is the query URI for finding a auto fill service to install.
         *
         * @hide
         */
        public static final String AUTOFILL_SERVICE_SEARCH_URI = "autofill_service_search_uri";

        
If enabled, apps should try to skip any introductory hints on first launch. This might
apply to users that are already familiar with the environment or temporary users.


Type : int (0 to show hints, 1 to skip showing hints)

/**
         * If enabled, apps should try to skip any introductory hints on first launch. This might
         * apply to users that are already familiar with the environment or temporary users.
         * <p>
         * Type : int (0 to show hints, 1 to skip showing hints)
         */
        public static final String SKIP_FIRST_USE_HINTS = "skip_first_use_hints";

        
Persisted playback time after a user confirmation of an unsafe volume level.

@hide
/**
         * Persisted playback time after a user confirmation of an unsafe volume level.
         *
         * @hide
         */
        public static final String UNSAFE_VOLUME_MUSIC_ACTIVE_MS = "unsafe_volume_music_active_ms";

        
This preference enables notification display on the lockscreen.

@hide
/**
         * This preference enables notification display on the lockscreen.
         * @hide
         */
        public static final String LOCK_SCREEN_SHOW_NOTIFICATIONS =
                "lock_screen_show_notifications";

        
List of TV inputs that are currently hidden. This is a string containing the IDs of all hidden TV inputs. Each ID is encoded by Uri.encode(String) and separated by ':'. 
@hide
/**
         * List of TV inputs that are currently hidden. This is a string
         * containing the IDs of all hidden TV inputs. Each ID is encoded by
         * {@link android.net.Uri#encode(String)} and separated by ':'.
         * @hide
         */
        public static final String TV_INPUT_HIDDEN_INPUTS = "tv_input_hidden_inputs";

        
List of custom TV input labels. This is a string containing  pairs. TV input id and custom name are encoded by Uri.encode(String) and separated by ','. Each pair is separated by ':'. 
@hide
/**
         * List of custom TV input labels. This is a string containing <TV input id, custom name>
         * pairs. TV input id and custom name are encoded by {@link android.net.Uri#encode(String)}
         * and separated by ','. Each pair is separated by ':'.
         * @hide
         */
        public static final String TV_INPUT_CUSTOM_LABELS = "tv_input_custom_labels";

        
Whether automatic routing of system audio to USB audio peripheral is disabled.
The value is boolean (1 or 0), where 1 means automatic routing is disabled,
and 0 means automatic routing is enabled.

@hide
/**
         * Whether automatic routing of system audio to USB audio peripheral is disabled.
         * The value is boolean (1 or 0), where 1 means automatic routing is disabled,
         * and 0 means automatic routing is enabled.
         *
         * @hide
         */
        public static final String USB_AUDIO_AUTOMATIC_ROUTING_DISABLED =
                "usb_audio_automatic_routing_disabled";

        
The timeout in milliseconds before the device fully goes to sleep after a period of inactivity. This value sets an upper bound on how long the device will stay awake or dreaming without user activity. It should generally be longer than System.SCREEN_OFF_TIMEOUT as otherwise the device will sleep before it ever has a chance to dream. 

Use -1 to disable this timeout.



@hide
/**
         * The timeout in milliseconds before the device fully goes to sleep after
         * a period of inactivity.  This value sets an upper bound on how long the device
         * will stay awake or dreaming without user activity.  It should generally
         * be longer than {@link Settings.System#SCREEN_OFF_TIMEOUT} as otherwise the device
         * will sleep before it ever has a chance to dream.
         * <p>
         * Use -1 to disable this timeout.
         * </p>
         *
         * @hide
         */
        public static final String SLEEP_TIMEOUT = "sleep_timeout";

        private static final Validator SLEEP_TIMEOUT_VALIDATOR =
                new SettingsValidators.InclusiveIntegerRangeValidator(-1, Integer.MAX_VALUE);

        
Controls whether double tap to wake is enabled.

@hide
/**
         * Controls whether double tap to wake is enabled.
         * @hide
         */
        public static final String DOUBLE_TAP_TO_WAKE = "double_tap_to_wake";

        private static final Validator DOUBLE_TAP_TO_WAKE_VALIDATOR = BOOLEAN_VALIDATOR;

        
The current assistant component. It could be a voice interaction service,
or an activity that handles ACTION_ASSIST, or empty which means using the default
handling.

@hide
/**
         * The current assistant component. It could be a voice interaction service,
         * or an activity that handles ACTION_ASSIST, or empty which means using the default
         * handling.
         *
         * @hide
         */
        public static final String ASSISTANT = "assistant";

        
Whether the camera launch gesture should be disabled.

@hide
/**
         * Whether the camera launch gesture should be disabled.
         *
         * @hide
         */
        public static final String CAMERA_GESTURE_DISABLED = "camera_gesture_disabled";

        private static final Validator CAMERA_GESTURE_DISABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether the camera launch gesture to double tap the power button when the screen is off
should be disabled.

@hide
/**
         * Whether the camera launch gesture to double tap the power button when the screen is off
         * should be disabled.
         *
         * @hide
         */
        public static final String CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED =
                "camera_double_tap_power_gesture_disabled";

        private static final Validator CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Whether the camera double twist gesture to flip between front and back mode should be
enabled.

@hide
/**
         * Whether the camera double twist gesture to flip between front and back mode should be
         * enabled.
         *
         * @hide
         */
        public static final String CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED =
                "camera_double_twist_to_flip_enabled";

        private static final Validator CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Whether the swipe up gesture to switch apps should be enabled.

@hide
/**
         * Whether the swipe up gesture to switch apps should be enabled.
         *
         * @hide
         */
        public static final String SWIPE_UP_TO_SWITCH_APPS_ENABLED =
                "swipe_up_to_switch_apps_enabled";

        private static final Validator SWIPE_UP_TO_SWITCH_APPS_ENABLED_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Whether or not the smart camera lift trigger that launches the camera when the user moves
the phone into a position for taking photos should be enabled.

@hide
/**
         * Whether or not the smart camera lift trigger that launches the camera when the user moves
         * the phone into a position for taking photos should be enabled.
         *
         * @hide
         */
        public static final String CAMERA_LIFT_TRIGGER_ENABLED = "camera_lift_trigger_enabled";

        
The default enable state of the camera lift trigger.

@hide
/**
         * The default enable state of the camera lift trigger.
         *
         * @hide
         */
        public static final int CAMERA_LIFT_TRIGGER_ENABLED_DEFAULT = 1;

        
Whether the assist gesture should be enabled.

@hide
/**
         * Whether the assist gesture should be enabled.
         *
         * @hide
         */
        public static final String ASSIST_GESTURE_ENABLED = "assist_gesture_enabled";

        private static final Validator ASSIST_GESTURE_ENABLED_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Sensitivity control for the assist gesture.

@hide
/**
         * Sensitivity control for the assist gesture.
         *
         * @hide
         */
        public static final String ASSIST_GESTURE_SENSITIVITY = "assist_gesture_sensitivity";

        
Whether the assist gesture should silence alerts.

@hide
/**
         * Whether the assist gesture should silence alerts.
         *
         * @hide
         */
        public static final String ASSIST_GESTURE_SILENCE_ALERTS_ENABLED =
                "assist_gesture_silence_alerts_enabled";

        private static final Validator ASSIST_GESTURE_SILENCE_ALERTS_ENABLED_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Whether the assist gesture should wake the phone.

@hide
/**
         * Whether the assist gesture should wake the phone.
         *
         * @hide
         */
        public static final String ASSIST_GESTURE_WAKE_ENABLED =
                "assist_gesture_wake_enabled";

        private static final Validator ASSIST_GESTURE_WAKE_ENABLED_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Whether Assist Gesture Deferred Setup has been completed

@hide
/**
         * Whether Assist Gesture Deferred Setup has been completed
         *
         * @hide
         */
        public static final String ASSIST_GESTURE_SETUP_COMPLETE = "assist_gesture_setup_complete";

        
Control whether Night display is currently activated.

@hide
/**
         * Control whether Night display is currently activated.
         * @hide
         */
        public static final String NIGHT_DISPLAY_ACTIVATED = "night_display_activated";

        
Control whether Night display will automatically activate/deactivate.

@hide
/**
         * Control whether Night display will automatically activate/deactivate.
         * @hide
         */
        public static final String NIGHT_DISPLAY_AUTO_MODE = "night_display_auto_mode";

        private static final Validator NIGHT_DISPLAY_AUTO_MODE_VALIDATOR =
                new SettingsValidators.InclusiveIntegerRangeValidator(0, 2);

        
Control the color temperature of Night Display, represented in Kelvin.

@hide
/**
         * Control the color temperature of Night Display, represented in Kelvin.
         * @hide
         */
        public static final String NIGHT_DISPLAY_COLOR_TEMPERATURE =
                "night_display_color_temperature";

        private static final Validator NIGHT_DISPLAY_COLOR_TEMPERATURE_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
Custom time when Night display is scheduled to activate.
Represented as milliseconds from midnight (e.g. 79200000 == 10pm).

@hide
/**
         * Custom time when Night display is scheduled to activate.
         * Represented as milliseconds from midnight (e.g. 79200000 == 10pm).
         * @hide
         */
        public static final String NIGHT_DISPLAY_CUSTOM_START_TIME =
                "night_display_custom_start_time";

        private static final Validator NIGHT_DISPLAY_CUSTOM_START_TIME_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
Custom time when Night display is scheduled to deactivate.
Represented as milliseconds from midnight (e.g. 21600000 == 6am).

@hide
/**
         * Custom time when Night display is scheduled to deactivate.
         * Represented as milliseconds from midnight (e.g. 21600000 == 6am).
         * @hide
         */
        public static final String NIGHT_DISPLAY_CUSTOM_END_TIME = "night_display_custom_end_time";

        private static final Validator NIGHT_DISPLAY_CUSTOM_END_TIME_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
A String representing the LocalDateTime when Night display was last activated. Use to
decide whether to apply the current activated state after a reboot or user change. In
legacy cases, this is represented by the time in milliseconds (since epoch).

@hide
/**
         * A String representing the LocalDateTime when Night display was last activated. Use to
         * decide whether to apply the current activated state after a reboot or user change. In
         * legacy cases, this is represented by the time in milliseconds (since epoch).
         * @hide
         */
        public static final String NIGHT_DISPLAY_LAST_ACTIVATED_TIME =
                "night_display_last_activated_time";

        
Names of the service components that the current user has explicitly allowed to
be a VR mode listener, separated by ':'.

@hide
/**
         * Names of the service components that the current user has explicitly allowed to
         * be a VR mode listener, separated by ':'.
         *
         * @hide
         */
        public static final String ENABLED_VR_LISTENERS = "enabled_vr_listeners";

        private static final Validator ENABLED_VR_LISTENERS_VALIDATOR =
                new SettingsValidators.ComponentNameListValidator(":");

        
Behavior of the display while in VR mode. One of VR_DISPLAY_MODE_LOW_PERSISTENCE or VR_DISPLAY_MODE_OFF. 
@hide
/**
         * Behavior of the display while in VR mode.
         *
         * One of {@link #VR_DISPLAY_MODE_LOW_PERSISTENCE} or {@link #VR_DISPLAY_MODE_OFF}.
         *
         * @hide
         */
        public static final String VR_DISPLAY_MODE = "vr_display_mode";

        private static final Validator VR_DISPLAY_MODE_VALIDATOR =
                new SettingsValidators.DiscreteValueValidator(new String[]{"0", "1"});

        
Lower the display persistence while the system is in VR mode.

See Also:
  • FEATURE_VR_MODE_HIGH_PERFORMANCE.FEATURE_VR_MODE_HIGH_PERFORMANCE
/**
         * Lower the display persistence while the system is in VR mode.
         *
         * @see PackageManager#FEATURE_VR_MODE_HIGH_PERFORMANCE
         *
         * @hide.
         */
        public static final int VR_DISPLAY_MODE_LOW_PERSISTENCE = 0;

        
Do not alter the display persistence while the system is in VR mode.

See Also:
  • FEATURE_VR_MODE_HIGH_PERFORMANCE.FEATURE_VR_MODE_HIGH_PERFORMANCE
/**
         * Do not alter the display persistence while the system is in VR mode.
         *
         * @see PackageManager#FEATURE_VR_MODE_HIGH_PERFORMANCE
         *
         * @hide.
         */
        public static final int VR_DISPLAY_MODE_OFF = 1;

        
Whether CarrierAppUtils#disableCarrierAppsUntilPrivileged has been executed at least
once.

This is used to ensure that we only take one pass which will disable apps that are not
privileged (if any). From then on, we only want to enable apps (when a matching SIM is
inserted), to avoid disabling an app that the user might actively be using.

Will be set to 1 once executed.

@hide
/**
         * Whether CarrierAppUtils#disableCarrierAppsUntilPrivileged has been executed at least
         * once.
         *
         * <p>This is used to ensure that we only take one pass which will disable apps that are not
         * privileged (if any). From then on, we only want to enable apps (when a matching SIM is
         * inserted), to avoid disabling an app that the user might actively be using.
         *
         * <p>Will be set to 1 once executed.
         *
         * @hide
         */
        public static final String CARRIER_APPS_HANDLED = "carrier_apps_handled";

        
Whether parent user can access remote contact in managed profile.

@hide
/**
         * Whether parent user can access remote contact in managed profile.
         *
         * @hide
         */
        public static final String MANAGED_PROFILE_CONTACT_REMOTE_SEARCH =
                "managed_profile_contact_remote_search";

        
Whether or not the automatic storage manager is enabled and should run on the device.

@hide
/**
         * Whether or not the automatic storage manager is enabled and should run on the device.
         *
         * @hide
         */
        public static final String AUTOMATIC_STORAGE_MANAGER_ENABLED =
                "automatic_storage_manager_enabled";

        
How many days of information for the automatic storage manager to retain on the device.

@hide
/**
         * How many days of information for the automatic storage manager to retain on the device.
         *
         * @hide
         */
        public static final String AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN =
                "automatic_storage_manager_days_to_retain";

        private static final Validator AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
Default number of days of information for the automatic storage manager to retain.

@hide
/**
         * Default number of days of information for the automatic storage manager to retain.
         *
         * @hide
         */
        public static final int AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN_DEFAULT = 90;

        
How many bytes the automatic storage manager has cleared out.

@hide
/**
         * How many bytes the automatic storage manager has cleared out.
         *
         * @hide
         */
        public static final String AUTOMATIC_STORAGE_MANAGER_BYTES_CLEARED =
                "automatic_storage_manager_bytes_cleared";


        
Last run time for the automatic storage manager.

@hide
/**
         * Last run time for the automatic storage manager.
         *
         * @hide
         */
        public static final String AUTOMATIC_STORAGE_MANAGER_LAST_RUN =
                "automatic_storage_manager_last_run";

        
If the automatic storage manager has been disabled by policy. Note that this doesn't
mean that the automatic storage manager is prevented from being re-enabled -- this only
means that it was turned off by policy at least once.

@hide
/**
         * If the automatic storage manager has been disabled by policy. Note that this doesn't
         * mean that the automatic storage manager is prevented from being re-enabled -- this only
         * means that it was turned off by policy at least once.
         *
         * @hide
         */
        public static final String AUTOMATIC_STORAGE_MANAGER_TURNED_OFF_BY_POLICY =
                "automatic_storage_manager_turned_off_by_policy";

        
Whether SystemUI navigation keys is enabled.

@hide
/**
         * Whether SystemUI navigation keys is enabled.
         * @hide
         */
        public static final String SYSTEM_NAVIGATION_KEYS_ENABLED =
                "system_navigation_keys_enabled";

        private static final Validator SYSTEM_NAVIGATION_KEYS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Holds comma separated list of ordering of QS tiles.

@hide
/**
         * Holds comma separated list of ordering of QS tiles.
         * @hide
         */
        public static final String QS_TILES = "sysui_qs_tiles";

        private static final Validator QS_TILES_VALIDATOR = new Validator() {
            @Override
            public boolean validate(@Nullable String value) {
                if (value == null) {
                    return false;
                }
                String[] tiles = value.split(",");
                boolean valid = true;
                for (String tile : tiles) {
                    // tile can be any non-empty string as specified by OEM
                    valid |= ((tile.length() > 0) && ANY_STRING_VALIDATOR.validate(tile));
                }
                return valid;
            }
        };

        
Specifies whether the web action API is enabled.

@hide
/**
         * Specifies whether the web action API is enabled.
         *
         * @hide
         */
        @SystemApi
        public static final String INSTANT_APPS_ENABLED = "instant_apps_enabled";

        
Has this pairable device been paired or upgraded from a previously paired system.

@hide
/**
         * Has this pairable device been paired or upgraded from a previously paired system.
         * @hide
         */
        public static final String DEVICE_PAIRED = "device_paired";

        
Integer state indicating whether package verifier is enabled.
TODO(b/34259924): Remove this setting.

@hide
/**
         * Integer state indicating whether package verifier is enabled.
         * TODO(b/34259924): Remove this setting.
         *
         * @hide
         */
        public static final String PACKAGE_VERIFIER_STATE = "package_verifier_state";

        
Specifies additional package name for broadcasting the CMAS messages.

@hide
/**
         * Specifies additional package name for broadcasting the CMAS messages.
         * @hide
         */
        public static final String CMAS_ADDITIONAL_BROADCAST_PKG = "cmas_additional_broadcast_pkg";

        
Whether the launcher should show any notification badges.
The value is boolean (1 or 0).

@hide
/**
         * Whether the launcher should show any notification badges.
         * The value is boolean (1 or 0).
         * @hide
         */
        public static final String NOTIFICATION_BADGING = "notification_badging";

        private static final Validator NOTIFICATION_BADGING_VALIDATOR = BOOLEAN_VALIDATOR;

        
Comma separated list of QS tiles that have been auto-added already.

@hide
/**
         * Comma separated list of QS tiles that have been auto-added already.
         * @hide
         */
        public static final String QS_AUTO_ADDED_TILES = "qs_auto_tiles";

        private static final Validator QS_AUTO_ADDED_TILES_VALIDATOR = new Validator() {
            @Override
            public boolean validate(@Nullable String value) {
                if (value == null) {
                    return false;
                }
                String[] tiles = value.split(",");
                boolean valid = true;
                for (String tile : tiles) {
                    // tile can be any non-empty string as specified by OEM
                    valid |= ((tile.length() > 0) && ANY_STRING_VALIDATOR.validate(tile));
                }
                return valid;
            }
        };

        
Whether the Lockdown button should be shown in the power menu.

@hide
/**
         * Whether the Lockdown button should be shown in the power menu.
         * @hide
         */
        public static final String LOCKDOWN_IN_POWER_MENU = "lockdown_in_power_menu";

        private static final Validator LOCKDOWN_IN_POWER_MENU_VALIDATOR = BOOLEAN_VALIDATOR;

        
Backup manager behavioral parameters.
This is encoded as a key=value list, separated by commas. Ex:
"key_value_backup_interval_milliseconds=14400000,key_value_backup_require_charging=true"
The following keys are supported:

key_value_backup_interval_milliseconds  (long)
key_value_backup_fuzz_milliseconds      (long)
key_value_backup_require_charging       (boolean)
key_value_backup_required_network_type  (int)
full_backup_interval_milliseconds       (long)
full_backup_require_charging            (boolean)
full_backup_required_network_type       (int)
backup_finished_notification_receivers  (String[])


backup_finished_notification_receivers uses ":" as delimeter for values.


Type: string

@hide
/**
         * Backup manager behavioral parameters.
         * This is encoded as a key=value list, separated by commas. Ex:
         *
         * "key_value_backup_interval_milliseconds=14400000,key_value_backup_require_charging=true"
         *
         * The following keys are supported:
         *
         * <pre>
         * key_value_backup_interval_milliseconds  (long)
         * key_value_backup_fuzz_milliseconds      (long)
         * key_value_backup_require_charging       (boolean)
         * key_value_backup_required_network_type  (int)
         * full_backup_interval_milliseconds       (long)
         * full_backup_require_charging            (boolean)
         * full_backup_required_network_type       (int)
         * backup_finished_notification_receivers  (String[])
         * </pre>
         *
         * backup_finished_notification_receivers uses ":" as delimeter for values.
         *
         * <p>
         * Type: string
         * @hide
         */
        public static final String BACKUP_MANAGER_CONSTANTS = "backup_manager_constants";


        
Local transport parameters so we can configure it for tests.
This is encoded as a key=value list, separated by commas.
The following keys are supported:

fake_encryption_flag  (boolean)




Type: string

@hide
/**
         * Local transport parameters so we can configure it for tests.
         * This is encoded as a key=value list, separated by commas.
         *
         * The following keys are supported:
         *
         * <pre>
         * fake_encryption_flag  (boolean)
         * </pre>
         *
         * <p>
         * Type: string
         * @hide
         */
        public static final String BACKUP_LOCAL_TRANSPORT_PARAMETERS =
                "backup_local_transport_parameters";

        
Flag to set if the system should predictively attempt to re-enable Bluetooth while
the user is driving.

@hide
/**
         * Flag to set if the system should predictively attempt to re-enable Bluetooth while
         * the user is driving.
         * @hide
         */
        public static final String BLUETOOTH_ON_WHILE_DRIVING = "bluetooth_on_while_driving";

        
What behavior should be invoked when the volume hush gesture is triggered
One of VOLUME_HUSH_OFF, VOLUME_HUSH_VIBRATE, VOLUME_HUSH_MUTE.

@hide
/**
         * What behavior should be invoked when the volume hush gesture is triggered
         * One of VOLUME_HUSH_OFF, VOLUME_HUSH_VIBRATE, VOLUME_HUSH_MUTE.
         *
         * @hide
         */
        public static final String VOLUME_HUSH_GESTURE = "volume_hush_gesture";

        
@hide
/** @hide */ public static final int VOLUME_HUSH_OFF = 0;
        
@hide
/** @hide */ public static final int VOLUME_HUSH_VIBRATE = 1;
        
@hide
/** @hide */ public static final int VOLUME_HUSH_MUTE = 2;

        private static final Validator VOLUME_HUSH_GESTURE_VALIDATOR =
                NON_NEGATIVE_INTEGER_VALIDATOR;

        
The number of times (integer) the user has manually enabled battery saver.

@hide
/**
         * The number of times (integer) the user has manually enabled battery saver.
         * @hide
         */
        public static final String LOW_POWER_MANUAL_ACTIVATION_COUNT =
                "low_power_manual_activation_count";

        
Whether the "first time battery saver warning" dialog needs to be shown (0: default)
or not (1).

@hide
/**
         * Whether the "first time battery saver warning" dialog needs to be shown (0: default)
         * or not (1).
         *
         * @hide
         */
        public static final String LOW_POWER_WARNING_ACKNOWLEDGED =
                "low_power_warning_acknowledged";

        
0 (default) Auto battery saver suggestion has not been suppressed. 1) it has been
suppressed.

@hide
/**
         * 0 (default) Auto battery saver suggestion has not been suppressed. 1) it has been
         * suppressed.
         * @hide
         */
        public static final String SUPPRESS_AUTO_BATTERY_SAVER_SUGGESTION =
                "suppress_auto_battery_saver_suggestion";

        
List of packages, which data need to be unconditionally cleared before full restore.
Type: string

@hide
/**
         * List of packages, which data need to be unconditionally cleared before full restore.
         * Type: string
         * @hide
         */
        public static final String PACKAGES_TO_CLEAR_DATA_BEFORE_FULL_RESTORE =
                "packages_to_clear_data_before_full_restore";

        
This are the settings to be backed up.
NOTE: Settings are backed up and restored in the order they appear
      in this array. If you have one setting depending on another,
      make sure that they are ordered appropriately.

@hide
/**
         * This are the settings to be backed up.
         *
         * NOTE: Settings are backed up and restored in the order they appear
         *       in this array. If you have one setting depending on another,
         *       make sure that they are ordered appropriately.
         *
         * @hide
         */
        public static final String[] SETTINGS_TO_BACKUP = {
            BUGREPORT_IN_POWER_MENU,                            // moved to global
            ALLOW_MOCK_LOCATION,
            USB_MASS_STORAGE_ENABLED,                           // moved to global
            ACCESSIBILITY_DISPLAY_INVERSION_ENABLED,
            ACCESSIBILITY_DISPLAY_DALTONIZER,
            ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED,
            ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED,
            ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED,
            AUTOFILL_SERVICE,
            ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE,
            ENABLED_ACCESSIBILITY_SERVICES,
            ENABLED_VR_LISTENERS,
            TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES,
            TOUCH_EXPLORATION_ENABLED,
            ACCESSIBILITY_ENABLED,
            ACCESSIBILITY_SHORTCUT_TARGET_SERVICE,
            ACCESSIBILITY_BUTTON_TARGET_COMPONENT,
            ACCESSIBILITY_SHORTCUT_DIALOG_SHOWN,
            ACCESSIBILITY_SHORTCUT_ENABLED,
            ACCESSIBILITY_SHORTCUT_ON_LOCK_SCREEN,
            ACCESSIBILITY_SPEAK_PASSWORD,
            ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED,
            ACCESSIBILITY_CAPTIONING_PRESET,
            ACCESSIBILITY_CAPTIONING_ENABLED,
            ACCESSIBILITY_CAPTIONING_LOCALE,
            ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR,
            ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR,
            ACCESSIBILITY_CAPTIONING_EDGE_TYPE,
            ACCESSIBILITY_CAPTIONING_EDGE_COLOR,
            ACCESSIBILITY_CAPTIONING_TYPEFACE,
            ACCESSIBILITY_CAPTIONING_FONT_SCALE,
            ACCESSIBILITY_CAPTIONING_WINDOW_COLOR,
            TTS_DEFAULT_RATE,
            TTS_DEFAULT_PITCH,
            TTS_DEFAULT_SYNTH,
            TTS_ENABLED_PLUGINS,
            TTS_DEFAULT_LOCALE,
            SHOW_IME_WITH_HARD_KEYBOARD,
            WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,            // moved to global
            WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,               // moved to global
            WIFI_NUM_OPEN_NETWORKS_KEPT,                        // moved to global
            SELECTED_SPELL_CHECKER,
            SELECTED_SPELL_CHECKER_SUBTYPE,
            SPELL_CHECKER_ENABLED,
            MOUNT_PLAY_NOTIFICATION_SND,
            MOUNT_UMS_AUTOSTART,
            MOUNT_UMS_PROMPT,
            MOUNT_UMS_NOTIFY_ENABLED,
            SLEEP_TIMEOUT,
            DOUBLE_TAP_TO_WAKE,
            WAKE_GESTURE_ENABLED,
            LONG_PRESS_TIMEOUT,
            CAMERA_GESTURE_DISABLED,
            ACCESSIBILITY_AUTOCLICK_ENABLED,
            ACCESSIBILITY_AUTOCLICK_DELAY,
            ACCESSIBILITY_LARGE_POINTER_ICON,
            PREFERRED_TTY_MODE,
            ENHANCED_VOICE_PRIVACY_ENABLED,
            TTY_MODE_ENABLED,
            RTT_CALLING_MODE,
            INCALL_POWER_BUTTON_BEHAVIOR,
            NIGHT_DISPLAY_CUSTOM_START_TIME,
            NIGHT_DISPLAY_CUSTOM_END_TIME,
            NIGHT_DISPLAY_COLOR_TEMPERATURE,
            NIGHT_DISPLAY_AUTO_MODE,
            SYNC_PARENT_SOUNDS,
            CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED,
            SWIPE_UP_TO_SWITCH_APPS_ENABLED,
            CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED,
            SYSTEM_NAVIGATION_KEYS_ENABLED,
            QS_TILES,
            DOZE_ENABLED,
            DOZE_PULSE_ON_PICK_UP,
            DOZE_PULSE_ON_DOUBLE_TAP,
            NFC_PAYMENT_DEFAULT_COMPONENT,
            AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN,
            ASSIST_GESTURE_ENABLED,
            ASSIST_GESTURE_SILENCE_ALERTS_ENABLED,
            ASSIST_GESTURE_WAKE_ENABLED,
            VR_DISPLAY_MODE,
            NOTIFICATION_BADGING,
            QS_AUTO_ADDED_TILES,
            SCREENSAVER_ENABLED,
            SCREENSAVER_COMPONENTS,
            SCREENSAVER_ACTIVATE_ON_DOCK,
            SCREENSAVER_ACTIVATE_ON_SLEEP,
            LOCKDOWN_IN_POWER_MENU,
            SHOW_FIRST_CRASH_DIALOG_DEV_OPTION,
            VOLUME_HUSH_GESTURE,
            MANUAL_RINGER_TOGGLE_COUNT,
            HUSH_GESTURE_USED,
        };

        
All settings in SETTINGS_TO_BACKUP array *must* have a non-null validator, otherwise they won't be restored. 
@hide
/**
         * All settings in {@link SETTINGS_TO_BACKUP} array *must* have a non-null validator,
         * otherwise they won't be restored.
         *
         * @hide
         */
        public static final Map<String, Validator> VALIDATORS = new ArrayMap<>();
        static {
            VALIDATORS.put(BUGREPORT_IN_POWER_MENU, BUGREPORT_IN_POWER_MENU_VALIDATOR);
            VALIDATORS.put(ALLOW_MOCK_LOCATION, ALLOW_MOCK_LOCATION_VALIDATOR);
            VALIDATORS.put(USB_MASS_STORAGE_ENABLED, USB_MASS_STORAGE_ENABLED_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_DISPLAY_INVERSION_ENABLED,
                    ACCESSIBILITY_DISPLAY_INVERSION_ENABLED_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_DISPLAY_DALTONIZER,
                    ACCESSIBILITY_DISPLAY_DALTONIZER_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED,
                    ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED,
                    ACCESSIBILITY_DISPLAY_MAGNIFICATION_ENABLED_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED,
                    ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED_VALIDATOR);
            VALIDATORS.put(AUTOFILL_SERVICE, AUTOFILL_SERVICE_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE,
                    ACCESSIBILITY_DISPLAY_MAGNIFICATION_SCALE_VALIDATOR);
            VALIDATORS.put(ENABLED_ACCESSIBILITY_SERVICES,
                    ENABLED_ACCESSIBILITY_SERVICES_VALIDATOR);
            VALIDATORS.put(ENABLED_VR_LISTENERS, ENABLED_VR_LISTENERS_VALIDATOR);
            VALIDATORS.put(TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES,
                    TOUCH_EXPLORATION_GRANTED_ACCESSIBILITY_SERVICES_VALIDATOR);
            VALIDATORS.put(TOUCH_EXPLORATION_ENABLED, TOUCH_EXPLORATION_ENABLED_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_ENABLED, ACCESSIBILITY_ENABLED_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_SHORTCUT_TARGET_SERVICE,
                    ACCESSIBILITY_SHORTCUT_TARGET_SERVICE_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_BUTTON_TARGET_COMPONENT,
                    ACCESSIBILITY_BUTTON_TARGET_COMPONENT_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_SHORTCUT_DIALOG_SHOWN,
                    ACCESSIBILITY_SHORTCUT_DIALOG_SHOWN_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_SHORTCUT_ENABLED,
                    ACCESSIBILITY_SHORTCUT_ENABLED_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_SHORTCUT_ON_LOCK_SCREEN,
                    ACCESSIBILITY_SHORTCUT_ON_LOCK_SCREEN_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_SPEAK_PASSWORD, ACCESSIBILITY_SPEAK_PASSWORD_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED,
                    ACCESSIBILITY_HIGH_TEXT_CONTRAST_ENABLED_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_PRESET,
                    ACCESSIBILITY_CAPTIONING_PRESET_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_ENABLED,
                    ACCESSIBILITY_CAPTIONING_ENABLED_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_LOCALE,
                    ACCESSIBILITY_CAPTIONING_LOCALE_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR,
                    ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR,
                    ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_EDGE_TYPE,
                    ACCESSIBILITY_CAPTIONING_EDGE_TYPE_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_EDGE_COLOR,
                    ACCESSIBILITY_CAPTIONING_EDGE_COLOR_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_TYPEFACE,
                    ACCESSIBILITY_CAPTIONING_TYPEFACE_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_FONT_SCALE,
                    ACCESSIBILITY_CAPTIONING_FONT_SCALE_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_CAPTIONING_WINDOW_COLOR,
                    ACCESSIBILITY_CAPTIONING_WINDOW_COLOR_VALIDATOR);
            VALIDATORS.put(TTS_DEFAULT_RATE, TTS_DEFAULT_RATE_VALIDATOR);
            VALIDATORS.put(TTS_DEFAULT_PITCH, TTS_DEFAULT_PITCH_VALIDATOR);
            VALIDATORS.put(TTS_DEFAULT_SYNTH, TTS_DEFAULT_SYNTH_VALIDATOR);
            VALIDATORS.put(TTS_ENABLED_PLUGINS, TTS_ENABLED_PLUGINS_VALIDATOR);
            VALIDATORS.put(TTS_DEFAULT_LOCALE, TTS_DEFAULT_LOCALE_VALIDATOR);
            VALIDATORS.put(SHOW_IME_WITH_HARD_KEYBOARD, SHOW_IME_WITH_HARD_KEYBOARD_VALIDATOR);
            VALIDATORS.put(WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
                    WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR);
            VALIDATORS.put(WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY,
                    WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY_VALIDATOR);
            VALIDATORS.put(WIFI_NUM_OPEN_NETWORKS_KEPT, WIFI_NUM_OPEN_NETWORKS_KEPT_VALIDATOR);
            VALIDATORS.put(SELECTED_SPELL_CHECKER, SELECTED_SPELL_CHECKER_VALIDATOR);
            VALIDATORS.put(SELECTED_SPELL_CHECKER_SUBTYPE,
                    SELECTED_SPELL_CHECKER_SUBTYPE_VALIDATOR);
            VALIDATORS.put(SPELL_CHECKER_ENABLED, SPELL_CHECKER_ENABLED_VALIDATOR);
            VALIDATORS.put(MOUNT_PLAY_NOTIFICATION_SND, MOUNT_PLAY_NOTIFICATION_SND_VALIDATOR);
            VALIDATORS.put(MOUNT_UMS_AUTOSTART, MOUNT_UMS_AUTOSTART_VALIDATOR);
            VALIDATORS.put(MOUNT_UMS_PROMPT, MOUNT_UMS_PROMPT_VALIDATOR);
            VALIDATORS.put(MOUNT_UMS_NOTIFY_ENABLED, MOUNT_UMS_NOTIFY_ENABLED_VALIDATOR);
            VALIDATORS.put(SLEEP_TIMEOUT, SLEEP_TIMEOUT_VALIDATOR);
            VALIDATORS.put(DOUBLE_TAP_TO_WAKE, DOUBLE_TAP_TO_WAKE_VALIDATOR);
            VALIDATORS.put(WAKE_GESTURE_ENABLED, WAKE_GESTURE_ENABLED_VALIDATOR);
            VALIDATORS.put(LONG_PRESS_TIMEOUT, LONG_PRESS_TIMEOUT_VALIDATOR);
            VALIDATORS.put(CAMERA_GESTURE_DISABLED, CAMERA_GESTURE_DISABLED_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_AUTOCLICK_ENABLED,
                    ACCESSIBILITY_AUTOCLICK_ENABLED_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_AUTOCLICK_DELAY, ACCESSIBILITY_AUTOCLICK_DELAY_VALIDATOR);
            VALIDATORS.put(ACCESSIBILITY_LARGE_POINTER_ICON,
                    ACCESSIBILITY_LARGE_POINTER_ICON_VALIDATOR);
            VALIDATORS.put(PREFERRED_TTY_MODE, PREFERRED_TTY_MODE_VALIDATOR);
            VALIDATORS.put(ENHANCED_VOICE_PRIVACY_ENABLED,
                    ENHANCED_VOICE_PRIVACY_ENABLED_VALIDATOR);
            VALIDATORS.put(TTY_MODE_ENABLED, TTY_MODE_ENABLED_VALIDATOR);
            VALIDATORS.put(RTT_CALLING_MODE, RTT_CALLING_MODE_VALIDATOR);
            VALIDATORS.put(INCALL_POWER_BUTTON_BEHAVIOR, INCALL_POWER_BUTTON_BEHAVIOR_VALIDATOR);
            VALIDATORS.put(NIGHT_DISPLAY_CUSTOM_START_TIME,
                    NIGHT_DISPLAY_CUSTOM_START_TIME_VALIDATOR);
            VALIDATORS.put(NIGHT_DISPLAY_CUSTOM_END_TIME, NIGHT_DISPLAY_CUSTOM_END_TIME_VALIDATOR);
            VALIDATORS.put(NIGHT_DISPLAY_COLOR_TEMPERATURE,
                    NIGHT_DISPLAY_COLOR_TEMPERATURE_VALIDATOR);
            VALIDATORS.put(NIGHT_DISPLAY_AUTO_MODE, NIGHT_DISPLAY_AUTO_MODE_VALIDATOR);
            VALIDATORS.put(SYNC_PARENT_SOUNDS, SYNC_PARENT_SOUNDS_VALIDATOR);
            VALIDATORS.put(CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED,
                    CAMERA_DOUBLE_TWIST_TO_FLIP_ENABLED_VALIDATOR);
            VALIDATORS.put(SWIPE_UP_TO_SWITCH_APPS_ENABLED,
                    SWIPE_UP_TO_SWITCH_APPS_ENABLED_VALIDATOR);
            VALIDATORS.put(CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED,
                    CAMERA_DOUBLE_TAP_POWER_GESTURE_DISABLED_VALIDATOR);
            VALIDATORS.put(SYSTEM_NAVIGATION_KEYS_ENABLED,
                    SYSTEM_NAVIGATION_KEYS_ENABLED_VALIDATOR);
            VALIDATORS.put(QS_TILES, QS_TILES_VALIDATOR);
            VALIDATORS.put(DOZE_ENABLED, DOZE_ENABLED_VALIDATOR);
            VALIDATORS.put(DOZE_PULSE_ON_PICK_UP, DOZE_PULSE_ON_PICK_UP_VALIDATOR);
            VALIDATORS.put(DOZE_PULSE_ON_DOUBLE_TAP, DOZE_PULSE_ON_DOUBLE_TAP_VALIDATOR);
            VALIDATORS.put(NFC_PAYMENT_DEFAULT_COMPONENT, NFC_PAYMENT_DEFAULT_COMPONENT_VALIDATOR);
            VALIDATORS.put(AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN,
                    AUTOMATIC_STORAGE_MANAGER_DAYS_TO_RETAIN_VALIDATOR);
            VALIDATORS.put(ASSIST_GESTURE_ENABLED, ASSIST_GESTURE_ENABLED_VALIDATOR);
            VALIDATORS.put(ASSIST_GESTURE_SILENCE_ALERTS_ENABLED,
                    ASSIST_GESTURE_SILENCE_ALERTS_ENABLED_VALIDATOR);
            VALIDATORS.put(ASSIST_GESTURE_WAKE_ENABLED, ASSIST_GESTURE_WAKE_ENABLED_VALIDATOR);
            VALIDATORS.put(VR_DISPLAY_MODE, VR_DISPLAY_MODE_VALIDATOR);
            VALIDATORS.put(NOTIFICATION_BADGING, NOTIFICATION_BADGING_VALIDATOR);
            VALIDATORS.put(QS_AUTO_ADDED_TILES, QS_AUTO_ADDED_TILES_VALIDATOR);
            VALIDATORS.put(SCREENSAVER_ENABLED, SCREENSAVER_ENABLED_VALIDATOR);
            VALIDATORS.put(SCREENSAVER_COMPONENTS, SCREENSAVER_COMPONENTS_VALIDATOR);
            VALIDATORS.put(SCREENSAVER_ACTIVATE_ON_DOCK, SCREENSAVER_ACTIVATE_ON_DOCK_VALIDATOR);
            VALIDATORS.put(SCREENSAVER_ACTIVATE_ON_SLEEP, SCREENSAVER_ACTIVATE_ON_SLEEP_VALIDATOR);
            VALIDATORS.put(LOCKDOWN_IN_POWER_MENU, LOCKDOWN_IN_POWER_MENU_VALIDATOR);
            VALIDATORS.put(SHOW_FIRST_CRASH_DIALOG_DEV_OPTION,
                    SHOW_FIRST_CRASH_DIALOG_DEV_OPTION_VALIDATOR);
            VALIDATORS.put(VOLUME_HUSH_GESTURE, VOLUME_HUSH_GESTURE_VALIDATOR);
            VALIDATORS.put(ENABLED_NOTIFICATION_LISTENERS,
                    ENABLED_NOTIFICATION_LISTENERS_VALIDATOR); //legacy restore setting
            VALIDATORS.put(ENABLED_NOTIFICATION_ASSISTANT,
                    ENABLED_NOTIFICATION_ASSISTANT_VALIDATOR); //legacy restore setting
            VALIDATORS.put(ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES,
                    ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES_VALIDATOR); //legacy restore setting
            VALIDATORS.put(HUSH_GESTURE_USED, HUSH_GESTURE_USED_VALIDATOR);
            VALIDATORS.put(MANUAL_RINGER_TOGGLE_COUNT, MANUAL_RINGER_TOGGLE_COUNT_VALIDATOR);
            VALIDATORS.put(LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS, BOOLEAN_VALIDATOR);
            VALIDATORS.put(LOCK_SCREEN_SHOW_NOTIFICATIONS, BOOLEAN_VALIDATOR);
        }

        
Keys we no longer back up under the current schema, but want to continue to process when restoring historical backup datasets. All settings in LEGACY_RESTORE_SETTINGS array *must* have a non-null validator, otherwise they won't be restored. 
@hide
/**
         * Keys we no longer back up under the current schema, but want to continue to
         * process when restoring historical backup datasets.
         *
         * All settings in {@link LEGACY_RESTORE_SETTINGS} array *must* have a non-null validator,
         * otherwise they won't be restored.
         *
         * @hide
         */
        public static final String[] LEGACY_RESTORE_SETTINGS = {
                ENABLED_NOTIFICATION_LISTENERS,
                ENABLED_NOTIFICATION_ASSISTANT,
                ENABLED_NOTIFICATION_POLICY_ACCESS_PACKAGES
        };

        
These entries are considered common between the personal and the managed profile,
since the managed profile doesn't get to change them.

/**
         * These entries are considered common between the personal and the managed profile,
         * since the managed profile doesn't get to change them.
         */
        private static final Set<String> CLONE_TO_MANAGED_PROFILE = new ArraySet<>();

        static {
            CLONE_TO_MANAGED_PROFILE.add(ACCESSIBILITY_ENABLED);
            CLONE_TO_MANAGED_PROFILE.add(ALLOW_MOCK_LOCATION);
            CLONE_TO_MANAGED_PROFILE.add(ALLOWED_GEOLOCATION_ORIGINS);
            CLONE_TO_MANAGED_PROFILE.add(AUTOFILL_SERVICE);
            CLONE_TO_MANAGED_PROFILE.add(DEFAULT_INPUT_METHOD);
            CLONE_TO_MANAGED_PROFILE.add(ENABLED_ACCESSIBILITY_SERVICES);
            CLONE_TO_MANAGED_PROFILE.add(ENABLED_INPUT_METHODS);
            CLONE_TO_MANAGED_PROFILE.add(LOCATION_CHANGER);
            CLONE_TO_MANAGED_PROFILE.add(LOCATION_MODE);
            CLONE_TO_MANAGED_PROFILE.add(LOCATION_PROVIDERS_ALLOWED);
            CLONE_TO_MANAGED_PROFILE.add(SELECTED_INPUT_METHOD_SUBTYPE);
            if (TextServicesManager.DISABLE_PER_PROFILE_SPELL_CHECKER) {
                CLONE_TO_MANAGED_PROFILE.add(SELECTED_SPELL_CHECKER);
                CLONE_TO_MANAGED_PROFILE.add(SELECTED_SPELL_CHECKER_SUBTYPE);
            }
        }

        
@hide
/** @hide */
        public static void getCloneToManagedProfileSettings(Set<String> outKeySet) {
            outKeySet.addAll(CLONE_TO_MANAGED_PROFILE);
        }

        
Secure settings which can be accessed by instant apps.

@hide
/**
         * Secure settings which can be accessed by instant apps.
         * @hide
         */
        public static final Set<String> INSTANT_APP_SETTINGS = new ArraySet<>();
        static {
            INSTANT_APP_SETTINGS.add(ENABLED_ACCESSIBILITY_SERVICES);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_SPEAK_PASSWORD);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_DISPLAY_INVERSION_ENABLED);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_ENABLED);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_PRESET);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_EDGE_TYPE);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_EDGE_COLOR);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_LOCALE);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_BACKGROUND_COLOR);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_FOREGROUND_COLOR);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_TYPEFACE);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_FONT_SCALE);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_CAPTIONING_WINDOW_COLOR);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_DISPLAY_DALTONIZER_ENABLED);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_DISPLAY_DALTONIZER);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_AUTOCLICK_DELAY);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_AUTOCLICK_ENABLED);
            INSTANT_APP_SETTINGS.add(ACCESSIBILITY_LARGE_POINTER_ICON);

            INSTANT_APP_SETTINGS.add(DEFAULT_INPUT_METHOD);
            INSTANT_APP_SETTINGS.add(ENABLED_INPUT_METHODS);

            INSTANT_APP_SETTINGS.add(ANDROID_ID);

            INSTANT_APP_SETTINGS.add(PACKAGE_VERIFIER_USER_CONSENT);
            INSTANT_APP_SETTINGS.add(ALLOW_MOCK_LOCATION);
        }

        
Helper method for determining if a location provider is enabled.

Params:
  • cr – the content resolver to use
  • provider – the location provider to query
Returns:true if the provider is enabled
Deprecated:use LocationManager.isProviderEnabled(String)
/**
         * Helper method for determining if a location provider is enabled.
         *
         * @param cr the content resolver to use
         * @param provider the location provider to query
         * @return true if the provider is enabled
         *
         * @deprecated use {@link LocationManager#isProviderEnabled(String)}
         */
        @Deprecated
        public static final boolean isLocationProviderEnabled(ContentResolver cr, String provider) {
            return isLocationProviderEnabledForUser(cr, provider, cr.getUserId());
        }

        
Helper method for determining if a location provider is enabled.

Params:
  • cr – the content resolver to use
  • provider – the location provider to query
  • userId – the userId to query
Returns:true if the provider is enabled
Deprecated:use LocationManager.isProviderEnabled(String)
@hide
/**
         * Helper method for determining if a location provider is enabled.
         * @param cr the content resolver to use
         * @param provider the location provider to query
         * @param userId the userId to query
         * @return true if the provider is enabled
         *
         * @deprecated use {@link LocationManager#isProviderEnabled(String)}
         * @hide
         */
        @Deprecated
        public static final boolean isLocationProviderEnabledForUser(
                ContentResolver cr, String provider, int userId) {
            String allowedProviders = Settings.Secure.getStringForUser(cr,
                    LOCATION_PROVIDERS_ALLOWED, userId);
            return TextUtils.delimitedStringContains(allowedProviders, ',', provider);
        }

        
Thread-safe method for enabling or disabling a single location provider.

Params:
  • cr – the content resolver to use
  • provider – the location provider to enable or disable
  • enabled – true if the provider should be enabled
Deprecated:This API is deprecated. It requires WRITE_SECURE_SETTINGS permission to
            change location settings.
/**
         * Thread-safe method for enabling or disabling a single location provider.
         * @param cr the content resolver to use
         * @param provider the location provider to enable or disable
         * @param enabled true if the provider should be enabled
         * @deprecated This API is deprecated. It requires WRITE_SECURE_SETTINGS permission to
         *             change location settings.
         */
        @Deprecated
        public static final void setLocationProviderEnabled(ContentResolver cr,
                String provider, boolean enabled) {
            setLocationProviderEnabledForUser(cr, provider, enabled, cr.getUserId());
        }

        
Thread-safe method for enabling or disabling a single location provider.

Params:
  • cr – the content resolver to use
  • provider – the location provider to enable or disable
  • enabled – true if the provider should be enabled
  • userId – the userId for which to enable/disable providers
Returns:true if the value was set, false on database errors
Deprecated:use LocationManager.setProviderEnabledForUser(String, boolean, UserHandle)
@hide
/**
         * Thread-safe method for enabling or disabling a single location provider.
         *
         * @param cr the content resolver to use
         * @param provider the location provider to enable or disable
         * @param enabled true if the provider should be enabled
         * @param userId the userId for which to enable/disable providers
         * @return true if the value was set, false on database errors
         *
         * @deprecated use {@link LocationManager#setProviderEnabledForUser(String, boolean, int)}
         * @hide
         */
        @Deprecated
        public static final boolean setLocationProviderEnabledForUser(ContentResolver cr,
                String provider, boolean enabled, int userId) {
            synchronized (mLocationSettingsLock) {
                // to ensure thread safety, we write the provider name with a '+' or '-'
                // and let the SettingsProvider handle it rather than reading and modifying
                // the list of enabled providers.
                if (enabled) {
                    provider = "+" + provider;
                } else {
                    provider = "-" + provider;
                }
                return putStringForUser(cr, Settings.Secure.LOCATION_PROVIDERS_ALLOWED, provider,
                        userId);
            }
        }

        
Thread-safe method for setting the location mode to one of LOCATION_MODE_HIGH_ACCURACY, LOCATION_MODE_SENSORS_ONLY, LOCATION_MODE_BATTERY_SAVING, or LOCATION_MODE_OFF. Necessary because the mode is a composite of the underlying location provider settings. 
Params:
Throws:
Returns:true if the value was set, false on database errors
Deprecated:To enable/disable location, use LocationManager.setLocationEnabledForUser(boolean, UserHandle). To enable/disable a specific location provider, use LocationManager.setProviderEnabledForUser(String, boolean, UserHandle).
/**
         * Thread-safe method for setting the location mode to one of
         * {@link #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY},
         * {@link #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}.
         * Necessary because the mode is a composite of the underlying location provider
         * settings.
         *
         * @param cr the content resolver to use
         * @param mode such as {@link #LOCATION_MODE_HIGH_ACCURACY}
         * @param userId the userId for which to change mode
         * @return true if the value was set, false on database errors
         *
         * @throws IllegalArgumentException if mode is not one of the supported values
         *
         * @deprecated To enable/disable location, use
         *             {@link LocationManager#setLocationEnabledForUser(boolean, int)}.
         *             To enable/disable a specific location provider, use
         *             {@link LocationManager#setProviderEnabledForUser(String, boolean, int)}.
         */
        @Deprecated
        private static boolean setLocationModeForUser(
                ContentResolver cr, int mode, int userId) {
            synchronized (mLocationSettingsLock) {
                boolean gps = false;
                boolean network = false;
                switch (mode) {
                    case LOCATION_MODE_OFF:
                        break;
                    case LOCATION_MODE_SENSORS_ONLY:
                        gps = true;
                        break;
                    case LOCATION_MODE_BATTERY_SAVING:
                        network = true;
                        break;
                    case LOCATION_MODE_HIGH_ACCURACY:
                        gps = true;
                        network = true;
                        break;
                    default:
                        throw new IllegalArgumentException("Invalid location mode: " + mode);
                }

                boolean nlpSuccess = Settings.Secure.setLocationProviderEnabledForUser(
                        cr, LocationManager.NETWORK_PROVIDER, network, userId);
                boolean gpsSuccess = Settings.Secure.setLocationProviderEnabledForUser(
                        cr, LocationManager.GPS_PROVIDER, gps, userId);
                return gpsSuccess && nlpSuccess;
            }
        }

        
Thread-safe method for reading the location mode, returns one of LOCATION_MODE_HIGH_ACCURACY, LOCATION_MODE_SENSORS_ONLY, LOCATION_MODE_BATTERY_SAVING, or LOCATION_MODE_OFF. Necessary because the mode is a composite of the underlying location provider settings. 
Params:
  • cr – the content resolver to use
  • userId – the userId for which to read the mode
Returns:the location mode
/**
         * Thread-safe method for reading the location mode, returns one of
         * {@link #LOCATION_MODE_HIGH_ACCURACY}, {@link #LOCATION_MODE_SENSORS_ONLY},
         * {@link #LOCATION_MODE_BATTERY_SAVING}, or {@link #LOCATION_MODE_OFF}. Necessary
         * because the mode is a composite of the underlying location provider settings.
         *
         * @param cr the content resolver to use
         * @param userId the userId for which to read the mode
         * @return the location mode
         */
        private static final int getLocationModeForUser(ContentResolver cr, int userId) {
            synchronized (mLocationSettingsLock) {
                boolean gpsEnabled = Settings.Secure.isLocationProviderEnabledForUser(
                        cr, LocationManager.GPS_PROVIDER, userId);
                boolean networkEnabled = Settings.Secure.isLocationProviderEnabledForUser(
                        cr, LocationManager.NETWORK_PROVIDER, userId);
                if (gpsEnabled && networkEnabled) {
                    return LOCATION_MODE_HIGH_ACCURACY;
                } else if (gpsEnabled) {
                    return LOCATION_MODE_SENSORS_ONLY;
                } else if (networkEnabled) {
                    return LOCATION_MODE_BATTERY_SAVING;
                } else {
                    return LOCATION_MODE_OFF;
                }
            }
        }
    }

    
Global system settings, containing preferences that always apply identically
to all defined users.  Applications can read these but are not allowed to write;
like the "Secure" settings, these are for preferences that the user must
explicitly modify through the system UI or specialized APIs for those values.

/**
     * Global system settings, containing preferences that always apply identically
     * to all defined users.  Applications can read these but are not allowed to write;
     * like the "Secure" settings, these are for preferences that the user must
     * explicitly modify through the system UI or specialized APIs for those values.
     */
    public static final class Global extends NameValueTable {
        // NOTE: If you add new settings here, be sure to add them to
        // com.android.providers.settings.SettingsProtoDumpUtil#dumpProtoGlobalSettingsLocked.

        
The content:// style URL for global secure settings items.  Not public.

/**
         * The content:// style URL for global secure settings items.  Not public.
         */
        public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/global");

        
Whether users are allowed to add more users or guest from lockscreen.


Type: int

@hide
/**
         * Whether users are allowed to add more users or guest from lockscreen.
         * <p>
         * Type: int
         * @hide
         */
        public static final String ADD_USERS_WHEN_LOCKED = "add_users_when_locked";

        
Setting whether the global gesture for enabling accessibility is enabled.
If this gesture is enabled the user will be able to perfrom it to enable
the accessibility state without visiting the settings app.

@hide
No longer used. Should be removed once all dependencies have been updated.
/**
         * Setting whether the global gesture for enabling accessibility is enabled.
         * If this gesture is enabled the user will be able to perfrom it to enable
         * the accessibility state without visiting the settings app.
         *
         * @hide
         * No longer used. Should be removed once all dependencies have been updated.
         */
        public static final String ENABLE_ACCESSIBILITY_GLOBAL_GESTURE_ENABLED =
                "enable_accessibility_global_gesture_enabled";

        
Whether Airplane Mode is on.

/**
         * Whether Airplane Mode is on.
         */
        public static final String AIRPLANE_MODE_ON = "airplane_mode_on";

        
Whether Theater Mode is on.
{@hide}

/**
         * Whether Theater Mode is on.
         * {@hide}
         */
        @SystemApi
        public static final String THEATER_MODE_ON = "theater_mode_on";

        
Constant for use in AIRPLANE_MODE_RADIOS to specify Bluetooth radio.

/**
         * Constant for use in AIRPLANE_MODE_RADIOS to specify Bluetooth radio.
         */
        public static final String RADIO_BLUETOOTH = "bluetooth";

        
Constant for use in AIRPLANE_MODE_RADIOS to specify Wi-Fi radio.

/**
         * Constant for use in AIRPLANE_MODE_RADIOS to specify Wi-Fi radio.
         */
        public static final String RADIO_WIFI = "wifi";

        
{@hide}

/**
         * {@hide}
         */
        public static final String RADIO_WIMAX = "wimax";
        
Constant for use in AIRPLANE_MODE_RADIOS to specify Cellular radio.

/**
         * Constant for use in AIRPLANE_MODE_RADIOS to specify Cellular radio.
         */
        public static final String RADIO_CELL = "cell";

        
Constant for use in AIRPLANE_MODE_RADIOS to specify NFC radio.

/**
         * Constant for use in AIRPLANE_MODE_RADIOS to specify NFC radio.
         */
        public static final String RADIO_NFC = "nfc";

        
A comma separated list of radios that need to be disabled when airplane mode
is on. This overrides WIFI_ON and BLUETOOTH_ON, if Wi-Fi and bluetooth are
included in the comma separated list.

/**
         * A comma separated list of radios that need to be disabled when airplane mode
         * is on. This overrides WIFI_ON and BLUETOOTH_ON, if Wi-Fi and bluetooth are
         * included in the comma separated list.
         */
        public static final String AIRPLANE_MODE_RADIOS = "airplane_mode_radios";

        
A comma separated list of radios that should to be disabled when airplane mode
is on, but can be manually reenabled by the user.  For example, if RADIO_WIFI is
added to both AIRPLANE_MODE_RADIOS and AIRPLANE_MODE_TOGGLEABLE_RADIOS, then Wifi
will be turned off when entering airplane mode, but the user will be able to reenable
Wifi in the Settings app.
{@hide}

/**
         * A comma separated list of radios that should to be disabled when airplane mode
         * is on, but can be manually reenabled by the user.  For example, if RADIO_WIFI is
         * added to both AIRPLANE_MODE_RADIOS and AIRPLANE_MODE_TOGGLEABLE_RADIOS, then Wifi
         * will be turned off when entering airplane mode, but the user will be able to reenable
         * Wifi in the Settings app.
         *
         * {@hide}
         */
        public static final String AIRPLANE_MODE_TOGGLEABLE_RADIOS = "airplane_mode_toggleable_radios";

        
An integer representing the Bluetooth Class of Device (CoD).

@hide
/**
         * An integer representing the Bluetooth Class of Device (CoD).
         *
         * @hide
         */
        public static final String BLUETOOTH_CLASS_OF_DEVICE = "bluetooth_class_of_device";

        
A Long representing a bitmap of profiles that should be disabled when bluetooth starts. See BluetoothProfile. {@hide} 
/**
         * A Long representing a bitmap of profiles that should be disabled when bluetooth starts.
         * See {@link android.bluetooth.BluetoothProfile}.
         * {@hide}
         */
        public static final String BLUETOOTH_DISABLED_PROFILES = "bluetooth_disabled_profiles";

        
A semi-colon separated list of Bluetooth interoperability workarounds.
Each entry is a partial Bluetooth device address string and an integer representing
the feature to be disabled, separated by a comma. The integer must correspond
to a interoperability feature as defined in "interop.h" in /system/bt.


Example: 

  "00:11:22,0;01:02:03:04,2"

@hide
/**
         * A semi-colon separated list of Bluetooth interoperability workarounds.
         * Each entry is a partial Bluetooth device address string and an integer representing
         * the feature to be disabled, separated by a comma. The integer must correspond
         * to a interoperability feature as defined in "interop.h" in /system/bt.
         * <p>
         * Example: <br/>
         *   "00:11:22,0;01:02:03:04,2"
         * @hide
         */
       public static final String BLUETOOTH_INTEROPERABILITY_LIST = "bluetooth_interoperability_list";

        
The policy for deciding when Wi-Fi should go to sleep (which will in
turn switch to using the mobile data as an Internet connection).

 Set to one of WIFI_SLEEP_POLICY_DEFAULT, WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED, or WIFI_SLEEP_POLICY_NEVER. 
/**
         * The policy for deciding when Wi-Fi should go to sleep (which will in
         * turn switch to using the mobile data as an Internet connection).
         * <p>
         * Set to one of {@link #WIFI_SLEEP_POLICY_DEFAULT},
         * {@link #WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED}, or
         * {@link #WIFI_SLEEP_POLICY_NEVER}.
         */
        public static final String WIFI_SLEEP_POLICY = "wifi_sleep_policy";

        
Value for WIFI_SLEEP_POLICY to use the default Wi-Fi sleep policy, which is to sleep shortly after the turning off according to the STAY_ON_WHILE_PLUGGED_IN setting. 
/**
         * Value for {@link #WIFI_SLEEP_POLICY} to use the default Wi-Fi sleep
         * policy, which is to sleep shortly after the turning off
         * according to the {@link #STAY_ON_WHILE_PLUGGED_IN} setting.
         */
        public static final int WIFI_SLEEP_POLICY_DEFAULT = 0;

        
Value for WIFI_SLEEP_POLICY to use the default policy when the device is on battery, and never go to sleep when the device is plugged in. 
/**
         * Value for {@link #WIFI_SLEEP_POLICY} to use the default policy when
         * the device is on battery, and never go to sleep when the device is
         * plugged in.
         */
        public static final int WIFI_SLEEP_POLICY_NEVER_WHILE_PLUGGED = 1;

        
Value for WIFI_SLEEP_POLICY to never go to sleep. 
/**
         * Value for {@link #WIFI_SLEEP_POLICY} to never go to sleep.
         */
        public static final int WIFI_SLEEP_POLICY_NEVER = 2;

        
Value to specify if the user prefers the date, time and time zone
to be automatically fetched from the network (NITZ). 1=yes, 0=no

/**
         * Value to specify if the user prefers the date, time and time zone
         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
         */
        public static final String AUTO_TIME = "auto_time";

        private static final Validator AUTO_TIME_VALIDATOR = BOOLEAN_VALIDATOR;

        
Value to specify if the user prefers the time zone
to be automatically fetched from the network (NITZ). 1=yes, 0=no

/**
         * Value to specify if the user prefers the time zone
         * to be automatically fetched from the network (NITZ). 1=yes, 0=no
         */
        public static final String AUTO_TIME_ZONE = "auto_time_zone";

        private static final Validator AUTO_TIME_ZONE_VALIDATOR = BOOLEAN_VALIDATOR;

        
URI for the car dock "in" event sound.

@hide
/**
         * URI for the car dock "in" event sound.
         * @hide
         */
        public static final String CAR_DOCK_SOUND = "car_dock_sound";

        
URI for the car dock "out" event sound.

@hide
/**
         * URI for the car dock "out" event sound.
         * @hide
         */
        public static final String CAR_UNDOCK_SOUND = "car_undock_sound";

        
URI for the desk dock "in" event sound.

@hide
/**
         * URI for the desk dock "in" event sound.
         * @hide
         */
        public static final String DESK_DOCK_SOUND = "desk_dock_sound";

        
URI for the desk dock "out" event sound.

@hide
/**
         * URI for the desk dock "out" event sound.
         * @hide
         */
        public static final String DESK_UNDOCK_SOUND = "desk_undock_sound";

        
Whether to play a sound for dock events.

@hide
/**
         * Whether to play a sound for dock events.
         * @hide
         */
        public static final String DOCK_SOUNDS_ENABLED = "dock_sounds_enabled";

        private static final Validator DOCK_SOUNDS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether to play a sound for dock events, only when an accessibility service is on.

@hide
/**
         * Whether to play a sound for dock events, only when an accessibility service is on.
         * @hide
         */
        public static final String DOCK_SOUNDS_ENABLED_WHEN_ACCESSIBILITY = "dock_sounds_enabled_when_accessbility";

        
URI for the "device locked" (keyguard shown) sound.

@hide
/**
         * URI for the "device locked" (keyguard shown) sound.
         * @hide
         */
        public static final String LOCK_SOUND = "lock_sound";

        
URI for the "device unlocked" sound.

@hide
/**
         * URI for the "device unlocked" sound.
         * @hide
         */
        public static final String UNLOCK_SOUND = "unlock_sound";

        
URI for the "device is trusted" sound, which is played when the device enters the trusted
state without unlocking.

@hide
/**
         * URI for the "device is trusted" sound, which is played when the device enters the trusted
         * state without unlocking.
         * @hide
         */
        public static final String TRUSTED_SOUND = "trusted_sound";

        
URI for the low battery sound file.

@hide
/**
         * URI for the low battery sound file.
         * @hide
         */
        public static final String LOW_BATTERY_SOUND = "low_battery_sound";

        
Whether to play a sound for low-battery alerts.

@hide
/**
         * Whether to play a sound for low-battery alerts.
         * @hide
         */
        public static final String POWER_SOUNDS_ENABLED = "power_sounds_enabled";

        private static final Validator POWER_SOUNDS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
URI for the "wireless charging started" and "wired charging started" sound.

@hide
/**
         * URI for the "wireless charging started" and "wired charging started" sound.
         * @hide
         */
        public static final String CHARGING_STARTED_SOUND =
                "wireless_charging_started_sound";

        
Whether to play a sound for charging events.

@hide
/**
         * Whether to play a sound for charging events.
         * @hide
         */
        public static final String CHARGING_SOUNDS_ENABLED = "charging_sounds_enabled";

        private static final Validator CHARGING_SOUNDS_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether to vibrate for wireless charging events.

@hide
/**
         * Whether to vibrate for wireless charging events.
         * @hide
         */
        public static final String CHARGING_VIBRATION_ENABLED = "charging_vibration_enabled";

        private static final Validator CHARGING_VIBRATION_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether we keep the device on while the device is plugged in.
Supported values are:

These values can be OR-ed together.

/**
         * Whether we keep the device on while the device is plugged in.
         * Supported values are:
         * <ul>
         * <li>{@code 0} to never stay on while plugged in</li>
         * <li>{@link BatteryManager#BATTERY_PLUGGED_AC} to stay on for AC charger</li>
         * <li>{@link BatteryManager#BATTERY_PLUGGED_USB} to stay on for USB charger</li>
         * <li>{@link BatteryManager#BATTERY_PLUGGED_WIRELESS} to stay on for wireless charger</li>
         * </ul>
         * These values can be OR-ed together.
         */
        public static final String STAY_ON_WHILE_PLUGGED_IN = "stay_on_while_plugged_in";

        private static final Validator STAY_ON_WHILE_PLUGGED_IN_VALIDATOR = new Validator() {
            @Override
            public boolean validate(@Nullable String value) {
                try {
                    int val = Integer.parseInt(value);
                    return (val == 0)
                            || (val == BatteryManager.BATTERY_PLUGGED_AC)
                            || (val == BatteryManager.BATTERY_PLUGGED_USB)
                            || (val == BatteryManager.BATTERY_PLUGGED_WIRELESS)
                            || (val == (BatteryManager.BATTERY_PLUGGED_AC
                                    | BatteryManager.BATTERY_PLUGGED_USB))
                            || (val == (BatteryManager.BATTERY_PLUGGED_AC
                                    | BatteryManager.BATTERY_PLUGGED_WIRELESS))
                            || (val == (BatteryManager.BATTERY_PLUGGED_USB
                                    | BatteryManager.BATTERY_PLUGGED_WIRELESS))
                            || (val == (BatteryManager.BATTERY_PLUGGED_AC
                                    | BatteryManager.BATTERY_PLUGGED_USB
                                    | BatteryManager.BATTERY_PLUGGED_WIRELESS));
                } catch (NumberFormatException e) {
                    return false;
                }
            }
        };

        
When the user has enable the option to have a "bug report" command
in the power menu.

@hide
/**
         * When the user has enable the option to have a "bug report" command
         * in the power menu.
         * @hide
         */
        public static final String BUGREPORT_IN_POWER_MENU = "bugreport_in_power_menu";

        private static final Validator BUGREPORT_IN_POWER_MENU_VALIDATOR = BOOLEAN_VALIDATOR;

        
Whether ADB is enabled.

/**
         * Whether ADB is enabled.
         */
        public static final String ADB_ENABLED = "adb_enabled";

        
Whether Views are allowed to save their attribute data.

@hide
/**
         * Whether Views are allowed to save their attribute data.
         * @hide
         */
        public static final String DEBUG_VIEW_ATTRIBUTES = "debug_view_attributes";

        
Whether assisted GPS should be enabled or not.

@hide
/**
         * Whether assisted GPS should be enabled or not.
         * @hide
         */
        public static final String ASSISTED_GPS_ENABLED = "assisted_gps_enabled";

        
Whether bluetooth is enabled/disabled
0=disabled. 1=enabled.

/**
         * Whether bluetooth is enabled/disabled
         * 0=disabled. 1=enabled.
         */
        public static final String BLUETOOTH_ON = "bluetooth_on";

        private static final Validator BLUETOOTH_ON_VALIDATOR = BOOLEAN_VALIDATOR;

        
CDMA Cell Broadcast SMS
                           0 = CDMA Cell Broadcast SMS disabled
                           1 = CDMA Cell Broadcast SMS enabled

@hide
/**
         * CDMA Cell Broadcast SMS
         *                            0 = CDMA Cell Broadcast SMS disabled
         *                            1 = CDMA Cell Broadcast SMS enabled
         * @hide
         */
        public static final String CDMA_CELL_BROADCAST_SMS =
                "cdma_cell_broadcast_sms";

        
The CDMA roaming mode 0 = Home Networks, CDMA default
                      1 = Roaming on Affiliated networks
                      2 = Roaming on any networks

@hide
/**
         * The CDMA roaming mode 0 = Home Networks, CDMA default
         *                       1 = Roaming on Affiliated networks
         *                       2 = Roaming on any networks
         * @hide
         */
        public static final String CDMA_ROAMING_MODE = "roaming_settings";

        
The CDMA subscription mode 0 = RUIM/SIM (default)
                               1 = NV

@hide
/**
         * The CDMA subscription mode 0 = RUIM/SIM (default)
         *                                1 = NV
         * @hide
         */
        public static final String CDMA_SUBSCRIPTION_MODE = "subscription_mode";

        
The default value for whether background data is enabled or not. Used by NetworkPolicyManagerService. 
@hide
/**
         * The default value for whether background data is enabled or not.
         *
         * Used by {@code NetworkPolicyManagerService}.
         *
         * @hide
         */
        public static final String DEFAULT_RESTRICT_BACKGROUND_DATA =
                "default_restrict_background_data";

        
Inactivity timeout to track mobile data activity. If set to a positive integer, it indicates the inactivity timeout value in seconds to infer the data activity of mobile network. After a period of no activity on mobile networks with length specified by the timeout, an ACTION_DATA_ACTIVITY_CHANGE intent is fired to indicate a transition of network status from "active" to "idle". Any subsequent activity on mobile networks triggers the firing of 
ACTION_DATA_ACTIVITY_CHANGE intent indicating transition from "idle" to "active". Network activity refers to transmitting or receiving data on the network interfaces. Tracking is disabled if set to zero or negative value. 
@hide
/** Inactivity timeout to track mobile data activity.
        *
        * If set to a positive integer, it indicates the inactivity timeout value in seconds to
        * infer the data activity of mobile network. After a period of no activity on mobile
        * networks with length specified by the timeout, an {@code ACTION_DATA_ACTIVITY_CHANGE}
        * intent is fired to indicate a transition of network status from "active" to "idle". Any
        * subsequent activity on mobile networks triggers the firing of {@code
        * ACTION_DATA_ACTIVITY_CHANGE} intent indicating transition from "idle" to "active".
        *
        * Network activity refers to transmitting or receiving data on the network interfaces.
        *
        * Tracking is disabled if set to zero or negative value.
        *
        * @hide
        */
       public static final String DATA_ACTIVITY_TIMEOUT_MOBILE = "data_activity_timeout_mobile";

       
Timeout to tracking Wifi data activity. Same as DATA_ACTIVITY_TIMEOUT_MOBILE but for Wifi network. 
@hide
/** Timeout to tracking Wifi data activity. Same as {@code DATA_ACTIVITY_TIMEOUT_MOBILE}
        * but for Wifi network.
        * @hide
        */
       public static final String DATA_ACTIVITY_TIMEOUT_WIFI = "data_activity_timeout_wifi";

       
Whether or not data roaming is enabled. (0 = false, 1 = true)

/**
        * Whether or not data roaming is enabled. (0 = false, 1 = true)
        */
       public static final String DATA_ROAMING = "data_roaming";

       
The value passed to a Mobile DataConnection via bringUp which defines the
number of retries to preform when setting up the initial connection. The default
value defined in DataConnectionTrackerBase#DEFAULT_MDC_INITIAL_RETRY is currently 1.

@hide
/**
        * The value passed to a Mobile DataConnection via bringUp which defines the
        * number of retries to preform when setting up the initial connection. The default
        * value defined in DataConnectionTrackerBase#DEFAULT_MDC_INITIAL_RETRY is currently 1.
        * @hide
        */
       public static final String MDC_INITIAL_MAX_RETRY = "mdc_initial_max_retry";

       
Whether any package can be on external storage. When this is true, any
package, regardless of manifest values, is a candidate for installing
or moving onto external storage. (0 = false, 1 = true)

@hide
/**
        * Whether any package can be on external storage. When this is true, any
        * package, regardless of manifest values, is a candidate for installing
        * or moving onto external storage. (0 = false, 1 = true)
        * @hide
        */
       public static final String FORCE_ALLOW_ON_EXTERNAL = "force_allow_on_external";

        
The default SM-DP+ configured for this device.

An SM-DP+ is used by an LPA (see EuiccService) to download profiles. If this value is set, the LPA will query this server for any profiles available to this device. If any are available, they may be downloaded during device provisioning or in settings without needing the user to enter an activation code. 
See Also:
@hide
/**
         * The default SM-DP+ configured for this device.
         *
         * <p>An SM-DP+ is used by an LPA (see {@link android.service.euicc.EuiccService}) to
         * download profiles. If this value is set, the LPA will query this server for any profiles
         * available to this device. If any are available, they may be downloaded during device
         * provisioning or in settings without needing the user to enter an activation code.
         *
         * @see android.service.euicc.EuiccService
         * @hide
         */
        @SystemApi
        public static final String DEFAULT_SM_DP_PLUS = "default_sm_dp_plus";

        
Whether any profile has ever been downloaded onto a eUICC on the device.

Used to hide eUICC UI from users who have never made use of it and would only be
confused by seeing references to it in settings.
(0 = false, 1 = true)

@hide
/**
         * Whether any profile has ever been downloaded onto a eUICC on the device.
         *
         * <p>Used to hide eUICC UI from users who have never made use of it and would only be
         * confused by seeing references to it in settings.
         * (0 = false, 1 = true)
         * @hide
         */
        @SystemApi
        public static final String EUICC_PROVISIONED = "euicc_provisioned";

        
List of ISO country codes in which eUICC UI is shown. Country codes should be separated
by comma.

Used to hide eUICC UI from users who are currently in countries no carriers support
eUICC.

@hide
/**
         * List of ISO country codes in which eUICC UI is shown. Country codes should be separated
         * by comma.
         *
         * <p>Used to hide eUICC UI from users who are currently in countries no carriers support
         * eUICC.
         * @hide
         */
        //TODO(b/77914569) Changes this to System Api.
        public static final String EUICC_SUPPORTED_COUNTRIES = "euicc_supported_countries";

        
Whether any activity can be resized. When this is true, any
activity, regardless of manifest values, can be resized for multi-window.
(0 = false, 1 = true)

@hide
/**
         * Whether any activity can be resized. When this is true, any
         * activity, regardless of manifest values, can be resized for multi-window.
         * (0 = false, 1 = true)
         * @hide
         */
        public static final String DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES
                = "force_resizable_activities";

        
Whether to enable experimental freeform support for windows.

@hide
/**
         * Whether to enable experimental freeform support for windows.
         * @hide
         */
        public static final String DEVELOPMENT_ENABLE_FREEFORM_WINDOWS_SUPPORT
                = "enable_freeform_support";

       
Whether user has enabled development settings.

/**
        * Whether user has enabled development settings.
        */
       public static final String DEVELOPMENT_SETTINGS_ENABLED = "development_settings_enabled";

       
Whether the device has been provisioned (0 = false, 1 = true).

On a multiuser device with a separate system user, the screen may be locked
as soon as this is set to true and further activities cannot be launched on the
system user unless they are marked to show over keyguard.

/**
        * Whether the device has been provisioned (0 = false, 1 = true).
        * <p>On a multiuser device with a separate system user, the screen may be locked
        * as soon as this is set to true and further activities cannot be launched on the
        * system user unless they are marked to show over keyguard.
        */
       public static final String DEVICE_PROVISIONED = "device_provisioned";

       
Whether mobile data should be allowed while the device is being provisioned.
This allows the provisioning process to turn off mobile data before the user
has an opportunity to set things up, preventing other processes from burning
precious bytes before wifi is setup.
(0 = false, 1 = true)

@hide
/**
        * Whether mobile data should be allowed while the device is being provisioned.
        * This allows the provisioning process to turn off mobile data before the user
        * has an opportunity to set things up, preventing other processes from burning
        * precious bytes before wifi is setup.
        * (0 = false, 1 = true)
        * @hide
        */
       public static final String DEVICE_PROVISIONING_MOBILE_DATA_ENABLED =
               "device_provisioning_mobile_data";

       
The saved value for WindowManagerService.setForcedDisplaySize().
Two integers separated by a comma.  If unset, then use the real display size.

@hide
/**
        * The saved value for WindowManagerService.setForcedDisplaySize().
        * Two integers separated by a comma.  If unset, then use the real display size.
        * @hide
        */
       public static final String DISPLAY_SIZE_FORCED = "display_size_forced";

       
The saved value for WindowManagerService.setForcedDisplayScalingMode().
0 or unset if scaling is automatic, 1 if scaling is disabled.

@hide
/**
        * The saved value for WindowManagerService.setForcedDisplayScalingMode().
        * 0 or unset if scaling is automatic, 1 if scaling is disabled.
        * @hide
        */
       public static final String DISPLAY_SCALING_FORCE = "display_scaling_force";

       
The maximum size, in bytes, of a download that the download manager will transfer over
a non-wifi connection.

@hide
/**
        * The maximum size, in bytes, of a download that the download manager will transfer over
        * a non-wifi connection.
        * @hide
        */
       public static final String DOWNLOAD_MAX_BYTES_OVER_MOBILE =
               "download_manager_max_bytes_over_mobile";

       
The recommended maximum size, in bytes, of a download that the download manager should
transfer over a non-wifi connection. Over this size, the use will be warned, but will
have the option to start the download over the mobile connection anyway.

@hide
/**
        * The recommended maximum size, in bytes, of a download that the download manager should
        * transfer over a non-wifi connection. Over this size, the use will be warned, but will
        * have the option to start the download over the mobile connection anyway.
        * @hide
        */
       public static final String DOWNLOAD_RECOMMENDED_MAX_BYTES_OVER_MOBILE =
               "download_manager_recommended_max_bytes_over_mobile";

       
Deprecated:Use Secure.INSTALL_NON_MARKET_APPS instead
/**
        * @deprecated Use {@link android.provider.Settings.Secure#INSTALL_NON_MARKET_APPS} instead
        */
       @Deprecated
       public static final String INSTALL_NON_MARKET_APPS = Secure.INSTALL_NON_MARKET_APPS;

       
Whether HDMI control shall be enabled. If disabled, no CEC/MHL command will be
sent or processed. (0 = false, 1 = true)

@hide
/**
        * Whether HDMI control shall be enabled. If disabled, no CEC/MHL command will be
        * sent or processed. (0 = false, 1 = true)
        * @hide
        */
       public static final String HDMI_CONTROL_ENABLED = "hdmi_control_enabled";

       
Whether HDMI System Audio Control feature is enabled. If enabled, TV will try to turn on
system audio mode if there's a connected CEC-enabled AV Receiver. Then audio stream will
be played on AVR instead of TV spaeker. If disabled, the system audio mode will never be
activated.

@hide
/**
        * Whether HDMI System Audio Control feature is enabled. If enabled, TV will try to turn on
        * system audio mode if there's a connected CEC-enabled AV Receiver. Then audio stream will
        * be played on AVR instead of TV spaeker. If disabled, the system audio mode will never be
        * activated.
        * @hide
        */
        public static final String HDMI_SYSTEM_AUDIO_CONTROL_ENABLED =
                "hdmi_system_audio_control_enabled";

        
Whether TV will automatically turn on upon reception of the CEC command
<Text View On> or <Image View On>. (0 = false, 1 = true)

@hide
/**
         * Whether TV will automatically turn on upon reception of the CEC command
         * &lt;Text View On&gt; or &lt;Image View On&gt;. (0 = false, 1 = true)
         *
         * @hide
         */
        public static final String HDMI_CONTROL_AUTO_WAKEUP_ENABLED =
                "hdmi_control_auto_wakeup_enabled";

        
Whether TV will also turn off other CEC devices when it goes to standby mode.
(0 = false, 1 = true)

@hide
/**
         * Whether TV will also turn off other CEC devices when it goes to standby mode.
         * (0 = false, 1 = true)
         *
         * @hide
         */
        public static final String HDMI_CONTROL_AUTO_DEVICE_OFF_ENABLED =
                "hdmi_control_auto_device_off_enabled";

        
If true, enables out-of-the-box execution for priv apps.
Default: false
Values: 0 = false, 1 = true

@hide
/**
         * If <b>true</b>, enables out-of-the-box execution for priv apps.
         * Default: false
         * Values: 0 = false, 1 = true
         *
         * @hide
         */
        public static final String PRIV_APP_OOB_ENABLED = "priv_app_oob_enabled";

        
Comma separated list of privileged package names, which will be running out-of-box APK.
Default: "ALL"

@hide
/**
         * Comma separated list of privileged package names, which will be running out-of-box APK.
         * Default: "ALL"
         *
         * @hide
         */
        public static final String PRIV_APP_OOB_LIST = "priv_app_oob_list";

        
The interval in milliseconds at which location requests will be throttled when they are
coming from the background.

@hide
/**
         * The interval in milliseconds at which location requests will be throttled when they are
         * coming from the background.
         *
         * @hide
         */
        public static final String LOCATION_BACKGROUND_THROTTLE_INTERVAL_MS =
                "location_background_throttle_interval_ms";

        
Most frequent location update interval in milliseconds that proximity alert is allowed
to request.

@hide
/**
         * Most frequent location update interval in milliseconds that proximity alert is allowed
         * to request.
         * @hide
         */
        public static final String LOCATION_BACKGROUND_THROTTLE_PROXIMITY_ALERT_INTERVAL_MS =
                "location_background_throttle_proximity_alert_interval_ms";

        
Packages that are whitelisted for background throttling (throttling will not be applied).

@hide
/**
         * Packages that are whitelisted for background throttling (throttling will not be applied).
         * @hide
         */
        public static final String LOCATION_BACKGROUND_THROTTLE_PACKAGE_WHITELIST =
            "location_background_throttle_package_whitelist";

        
Whether TV will switch to MHL port when a mobile device is plugged in.
(0 = false, 1 = true)

@hide
/**
        * Whether TV will switch to MHL port when a mobile device is plugged in.
        * (0 = false, 1 = true)
        * @hide
        */
       public static final String MHL_INPUT_SWITCHING_ENABLED = "mhl_input_switching_enabled";

       
Whether TV will charge the mobile device connected at MHL port. (0 = false, 1 = true)

@hide
/**
        * Whether TV will charge the mobile device connected at MHL port. (0 = false, 1 = true)
        * @hide
        */
       public static final String MHL_POWER_CHARGE_ENABLED = "mhl_power_charge_enabled";

       
Whether mobile data connections are allowed by the user.  See
ConnectivityManager for more info.

@hide
/**
        * Whether mobile data connections are allowed by the user.  See
        * ConnectivityManager for more info.
        * @hide
        */
       public static final String MOBILE_DATA = "mobile_data";

       
Whether the mobile data connection should remain active even when higher
priority networks like WiFi are active, to help make network switching faster.
See ConnectivityService for more info.
(0 = disabled, 1 = enabled)

@hide
/**
        * Whether the mobile data connection should remain active even when higher
        * priority networks like WiFi are active, to help make network switching faster.
        *
        * See ConnectivityService for more info.
        *
        * (0 = disabled, 1 = enabled)
        * @hide
        */
       public static final String MOBILE_DATA_ALWAYS_ON = "mobile_data_always_on";

        
Size of the event buffer for IP connectivity metrics.

@hide
/**
         * Size of the event buffer for IP connectivity metrics.
         * @hide
         */
        public static final String CONNECTIVITY_METRICS_BUFFER_SIZE =
              "connectivity_metrics_buffer_size";

       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_ENABLED = "netstats_enabled";
       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_POLL_INTERVAL = "netstats_poll_interval";
       
{@hide} 
/** {@hide} */
       @Deprecated
       public static final String NETSTATS_TIME_CACHE_MAX_AGE = "netstats_time_cache_max_age";
       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_GLOBAL_ALERT_BYTES = "netstats_global_alert_bytes";
       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_SAMPLE_ENABLED = "netstats_sample_enabled";
       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_AUGMENT_ENABLED = "netstats_augment_enabled";

       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_DEV_BUCKET_DURATION = "netstats_dev_bucket_duration";
       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_DEV_PERSIST_BYTES = "netstats_dev_persist_bytes";
       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_DEV_ROTATE_AGE = "netstats_dev_rotate_age";
       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_DEV_DELETE_AGE = "netstats_dev_delete_age";

       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_UID_BUCKET_DURATION = "netstats_uid_bucket_duration";
       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_UID_PERSIST_BYTES = "netstats_uid_persist_bytes";
       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_UID_ROTATE_AGE = "netstats_uid_rotate_age";
       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_UID_DELETE_AGE = "netstats_uid_delete_age";

       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_UID_TAG_BUCKET_DURATION = "netstats_uid_tag_bucket_duration";
       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_UID_TAG_PERSIST_BYTES = "netstats_uid_tag_persist_bytes";
       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_UID_TAG_ROTATE_AGE = "netstats_uid_tag_rotate_age";
       
{@hide} 
/** {@hide} */
       public static final String NETSTATS_UID_TAG_DELETE_AGE = "netstats_uid_tag_delete_age";

       
{@hide} 
/** {@hide} */
       public static final String NETPOLICY_QUOTA_ENABLED = "netpolicy_quota_enabled";
       
{@hide} 
/** {@hide} */
       public static final String NETPOLICY_QUOTA_UNLIMITED = "netpolicy_quota_unlimited";
       
{@hide} 
/** {@hide} */
       public static final String NETPOLICY_QUOTA_LIMITED = "netpolicy_quota_limited";
       
{@hide} 
/** {@hide} */
       public static final String NETPOLICY_QUOTA_FRAC_JOBS = "netpolicy_quota_frac_jobs";
       
{@hide} 
/** {@hide} */
       public static final String NETPOLICY_QUOTA_FRAC_MULTIPATH = "netpolicy_quota_frac_multipath";

       
{@hide} 
/** {@hide} */
       public static final String NETPOLICY_OVERRIDE_ENABLED = "netpolicy_override_enabled";

       
User preference for which network(s) should be used. Only the
connectivity service should touch this.

/**
        * User preference for which network(s) should be used. Only the
        * connectivity service should touch this.
        */
       public static final String NETWORK_PREFERENCE = "network_preference";

       
Which package name to use for network scoring. If null, or if the package is not a valid
scorer app, external network scores will neither be requested nor accepted.

@hide
/**
        * Which package name to use for network scoring. If null, or if the package is not a valid
        * scorer app, external network scores will neither be requested nor accepted.
        * @hide
        */
       public static final String NETWORK_SCORER_APP = "network_scorer_app";

        
Whether night display forced auto mode is available.
0 = unavailable, 1 = available.

@hide
/**
         * Whether night display forced auto mode is available.
         * 0 = unavailable, 1 = available.
         * @hide
         */
        public static final String NIGHT_DISPLAY_FORCED_AUTO_MODE_AVAILABLE =
                "night_display_forced_auto_mode_available";

       
If the NITZ_UPDATE_DIFF time is exceeded then an automatic adjustment
to SystemClock will be allowed even if NITZ_UPDATE_SPACING has not been
exceeded.

@hide
/**
        * If the NITZ_UPDATE_DIFF time is exceeded then an automatic adjustment
        * to SystemClock will be allowed even if NITZ_UPDATE_SPACING has not been
        * exceeded.
        * @hide
        */
       public static final String NITZ_UPDATE_DIFF = "nitz_update_diff";

       
The length of time in milli-seconds that automatic small adjustments to
SystemClock are ignored if NITZ_UPDATE_DIFF is not exceeded.

@hide
/**
        * The length of time in milli-seconds that automatic small adjustments to
        * SystemClock are ignored if NITZ_UPDATE_DIFF is not exceeded.
        * @hide
        */
       public static final String NITZ_UPDATE_SPACING = "nitz_update_spacing";

       
Preferred NTP server. {@hide} 
/** Preferred NTP server. {@hide} */
       public static final String NTP_SERVER = "ntp_server";
       
Timeout in milliseconds to wait for NTP server. {@hide} 
/** Timeout in milliseconds to wait for NTP server. {@hide} */
       public static final String NTP_TIMEOUT = "ntp_timeout";

       
{@hide} 
/** {@hide} */
       public static final String STORAGE_BENCHMARK_INTERVAL = "storage_benchmark_interval";

       
Sample validity in seconds to configure for the system DNS resolver.
{@hide}

/**
        * Sample validity in seconds to configure for the system DNS resolver.
        * {@hide}
        */
       public static final String DNS_RESOLVER_SAMPLE_VALIDITY_SECONDS =
               "dns_resolver_sample_validity_seconds";

       
Success threshold in percent for use with the system DNS resolver.
{@hide}

/**
        * Success threshold in percent for use with the system DNS resolver.
        * {@hide}
        */
       public static final String DNS_RESOLVER_SUCCESS_THRESHOLD_PERCENT =
                "dns_resolver_success_threshold_percent";

       
Minimum number of samples needed for statistics to be considered meaningful in the
system DNS resolver.
{@hide}

/**
        * Minimum number of samples needed for statistics to be considered meaningful in the
        * system DNS resolver.
        * {@hide}
        */
       public static final String DNS_RESOLVER_MIN_SAMPLES = "dns_resolver_min_samples";

       
Maximum number taken into account for statistics purposes in the system DNS resolver.
{@hide}

/**
        * Maximum number taken into account for statistics purposes in the system DNS resolver.
        * {@hide}
        */
       public static final String DNS_RESOLVER_MAX_SAMPLES = "dns_resolver_max_samples";

       
Whether to disable the automatic scheduling of system updates.
1 = system updates won't be automatically scheduled (will always
present notification instead).
0 = system updates will be automatically scheduled. (default)

@hide
/**
        * Whether to disable the automatic scheduling of system updates.
        * 1 = system updates won't be automatically scheduled (will always
        * present notification instead).
        * 0 = system updates will be automatically scheduled. (default)
        * @hide
        */
       @SystemApi
       public static final String OTA_DISABLE_AUTOMATIC_UPDATE = "ota_disable_automatic_update";

       
Whether the package manager should send package verification broadcasts for verifiers to
review apps prior to installation.
1 = request apps to be verified prior to installation, if a verifier exists.
0 = do not verify apps before installation

@hide
/**
        * Whether the package manager should send package verification broadcasts for verifiers to
        * review apps prior to installation.
        * 1 = request apps to be verified prior to installation, if a verifier exists.
        * 0 = do not verify apps before installation
        * @hide
        */
       public static final String PACKAGE_VERIFIER_ENABLE = "package_verifier_enable";

       
Timeout for package verification.

@hide
/** Timeout for package verification.
        * @hide */
       public static final String PACKAGE_VERIFIER_TIMEOUT = "verifier_timeout";

       
Default response code for package verification.

@hide
/** Default response code for package verification.
        * @hide */
       public static final String PACKAGE_VERIFIER_DEFAULT_RESPONSE = "verifier_default_response";

       
Show package verification setting in the Settings app.
1 = show (default)
0 = hide

@hide
/**
        * Show package verification setting in the Settings app.
        * 1 = show (default)
        * 0 = hide
        * @hide
        */
       public static final String PACKAGE_VERIFIER_SETTING_VISIBLE = "verifier_setting_visible";

       
Run package verification on apps installed through ADB/ADT/USB
1 = perform package verification on ADB installs (default)
0 = bypass package verification on ADB installs

@hide
/**
        * Run package verification on apps installed through ADB/ADT/USB
        * 1 = perform package verification on ADB installs (default)
        * 0 = bypass package verification on ADB installs
        * @hide
        */
       public static final String PACKAGE_VERIFIER_INCLUDE_ADB = "verifier_verify_adb_installs";

       
Time since last fstrim (milliseconds) after which we force one to happen
during device startup.  If unset, the default is 3 days.

@hide
/**
        * Time since last fstrim (milliseconds) after which we force one to happen
        * during device startup.  If unset, the default is 3 days.
        * @hide
        */
       public static final String FSTRIM_MANDATORY_INTERVAL = "fstrim_mandatory_interval";

       
The interval in milliseconds at which to check packet counts on the
mobile data interface when screen is on, to detect possible data
connection problems.

@hide
/**
        * The interval in milliseconds at which to check packet counts on the
        * mobile data interface when screen is on, to detect possible data
        * connection problems.
        * @hide
        */
       public static final String PDP_WATCHDOG_POLL_INTERVAL_MS =
               "pdp_watchdog_poll_interval_ms";

       
The interval in milliseconds at which to check packet counts on the
mobile data interface when screen is off, to detect possible data
connection problems.

@hide
/**
        * The interval in milliseconds at which to check packet counts on the
        * mobile data interface when screen is off, to detect possible data
        * connection problems.
        * @hide
        */
       public static final String PDP_WATCHDOG_LONG_POLL_INTERVAL_MS =
               "pdp_watchdog_long_poll_interval_ms";

       
The interval in milliseconds at which to check packet counts on the mobile data interface after PDP_WATCHDOG_TRIGGER_PACKET_COUNT outgoing packets has been reached without incoming packets. 
@hide
/**
        * The interval in milliseconds at which to check packet counts on the
        * mobile data interface after {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT}
        * outgoing packets has been reached without incoming packets.
        * @hide
        */
       public static final String PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS =
               "pdp_watchdog_error_poll_interval_ms";

       
The number of outgoing packets sent without seeing an incoming packet that triggers a countdown (of PDP_WATCHDOG_ERROR_POLL_COUNT device is logged to the event log 
@hide
/**
        * The number of outgoing packets sent without seeing an incoming packet
        * that triggers a countdown (of {@link #PDP_WATCHDOG_ERROR_POLL_COUNT}
        * device is logged to the event log
        * @hide
        */
       public static final String PDP_WATCHDOG_TRIGGER_PACKET_COUNT =
               "pdp_watchdog_trigger_packet_count";

       
The number of polls to perform (at PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS) after hitting PDP_WATCHDOG_TRIGGER_PACKET_COUNT before attempting data connection recovery. 
@hide
/**
        * The number of polls to perform (at {@link #PDP_WATCHDOG_ERROR_POLL_INTERVAL_MS})
        * after hitting {@link #PDP_WATCHDOG_TRIGGER_PACKET_COUNT} before
        * attempting data connection recovery.
        * @hide
        */
       public static final String PDP_WATCHDOG_ERROR_POLL_COUNT =
               "pdp_watchdog_error_poll_count";

       
The number of failed PDP reset attempts before moving to something more
drastic: re-registering to the network.

@hide
/**
        * The number of failed PDP reset attempts before moving to something more
        * drastic: re-registering to the network.
        * @hide
        */
       public static final String PDP_WATCHDOG_MAX_PDP_RESET_FAIL_COUNT =
               "pdp_watchdog_max_pdp_reset_fail_count";

       
URL to open browser on to allow user to manage a prepay account

@hide
/**
        * URL to open browser on to allow user to manage a prepay account
        * @hide
        */
       public static final String SETUP_PREPAID_DATA_SERVICE_URL =
               "setup_prepaid_data_service_url";

       
URL to attempt a GET on to see if this is a prepay device

@hide
/**
        * URL to attempt a GET on to see if this is a prepay device
        * @hide
        */
       public static final String SETUP_PREPAID_DETECTION_TARGET_URL =
               "setup_prepaid_detection_target_url";

       
Host to check for a redirect to after an attempt to GET
SETUP_PREPAID_DETECTION_TARGET_URL. (If we redirected there,
this is a prepaid device with zero balance.)

@hide
/**
        * Host to check for a redirect to after an attempt to GET
        * SETUP_PREPAID_DETECTION_TARGET_URL. (If we redirected there,
        * this is a prepaid device with zero balance.)
        * @hide
        */
       public static final String SETUP_PREPAID_DETECTION_REDIR_HOST =
               "setup_prepaid_detection_redir_host";

       
The interval in milliseconds at which to check the number of SMS sent out without asking
for use permit, to limit the un-authorized SMS usage.

@hide
/**
        * The interval in milliseconds at which to check the number of SMS sent out without asking
        * for use permit, to limit the un-authorized SMS usage.
        *
        * @hide
        */
       public static final String SMS_OUTGOING_CHECK_INTERVAL_MS =
               "sms_outgoing_check_interval_ms";

       
The number of outgoing SMS sent without asking for user permit (of SMS_OUTGOING_CHECK_INTERVAL_MS 
@hide
/**
        * The number of outgoing SMS sent without asking for user permit (of {@link
        * #SMS_OUTGOING_CHECK_INTERVAL_MS}
        *
        * @hide
        */
       public static final String SMS_OUTGOING_CHECK_MAX_COUNT =
               "sms_outgoing_check_max_count";

       
Used to disable SMS short code confirmation - defaults to true.
True indcates we will do the check, etc.  Set to false to disable.

See Also:
  • SmsUsageMonitor
@hide
/**
        * Used to disable SMS short code confirmation - defaults to true.
        * True indcates we will do the check, etc.  Set to false to disable.
        * @see com.android.internal.telephony.SmsUsageMonitor
        * @hide
        */
       public static final String SMS_SHORT_CODE_CONFIRMATION = "sms_short_code_confirmation";

        
Used to select which country we use to determine premium sms codes.
One of com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_SIM,
com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_NETWORK,
or com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_BOTH.

@hide
/**
         * Used to select which country we use to determine premium sms codes.
         * One of com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_SIM,
         * com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_NETWORK,
         * or com.android.internal.telephony.SMSDispatcher.PREMIUM_RULE_USE_BOTH.
         * @hide
         */
        public static final String SMS_SHORT_CODE_RULE = "sms_short_code_rule";

       
Used to select TCP's default initial receiver window size in segments - defaults to a build config value

@hide
/**
        * Used to select TCP's default initial receiver window size in segments - defaults to a build config value
        * @hide
        */
       public static final String TCP_DEFAULT_INIT_RWND = "tcp_default_init_rwnd";

       
Used to disable Tethering on a device - defaults to true

@hide
/**
        * Used to disable Tethering on a device - defaults to true
        * @hide
        */
       public static final String TETHER_SUPPORTED = "tether_supported";

       
Used to require DUN APN on the device or not - defaults to a build config value
which defaults to false

@hide
/**
        * Used to require DUN APN on the device or not - defaults to a build config value
        * which defaults to false
        * @hide
        */
       public static final String TETHER_DUN_REQUIRED = "tether_dun_required";

       
Used to hold a gservices-provisioned apn value for DUN.  If set, or the
corresponding build config values are set it will override the APN DB
values.
Consists of a comma seperated list of strings:
"name,apn,proxy,port,username,password,server,mmsc,mmsproxy,mmsport,mcc,mnc,auth,type"
note that empty fields can be omitted: "name,apn,,,,,,,,,310,260,,DUN"

@hide
/**
        * Used to hold a gservices-provisioned apn value for DUN.  If set, or the
        * corresponding build config values are set it will override the APN DB
        * values.
        * Consists of a comma seperated list of strings:
        * "name,apn,proxy,port,username,password,server,mmsc,mmsproxy,mmsport,mcc,mnc,auth,type"
        * note that empty fields can be omitted: "name,apn,,,,,,,,,310,260,,DUN"
        * @hide
        */
       public static final String TETHER_DUN_APN = "tether_dun_apn";

        
Used to disable trying to talk to any available tethering offload HAL.
Integer values are interpreted as boolean, and the absence of an explicit setting
is interpreted as |false|.

@hide
/**
         * Used to disable trying to talk to any available tethering offload HAL.
         *
         * Integer values are interpreted as boolean, and the absence of an explicit setting
         * is interpreted as |false|.
         * @hide
         */
        public static final String TETHER_OFFLOAD_DISABLED = "tether_offload_disabled";

        
List of certificate (hex string representation of the application's certificate - SHA-1
or SHA-256) and carrier app package pairs which are whitelisted to prompt the user for
install when a sim card with matching UICC carrier privilege rules is inserted.  The
certificate is used as a key, so the certificate encoding here must be the same as the
certificate encoding used on the SIM.
The value is "cert1:package1;cert2:package2;..."

@hide
/**
         * List of certificate (hex string representation of the application's certificate - SHA-1
         * or SHA-256) and carrier app package pairs which are whitelisted to prompt the user for
         * install when a sim card with matching UICC carrier privilege rules is inserted.  The
         * certificate is used as a key, so the certificate encoding here must be the same as the
         * certificate encoding used on the SIM.
         *
         * The value is "cert1:package1;cert2:package2;..."
         * @hide
         */
        @SystemApi
        public static final String CARRIER_APP_WHITELIST = "carrier_app_whitelist";

        
Map of package name to application names. The application names cannot and will not be
localized. App names may not contain colons or semicolons.
The value is "packageName1:appName1;packageName2:appName2;..."

@hide
/**
         * Map of package name to application names. The application names cannot and will not be
         * localized. App names may not contain colons or semicolons.
         *
         * The value is "packageName1:appName1;packageName2:appName2;..."
         * @hide
         */
        @SystemApi
        public static final String CARRIER_APP_NAMES = "carrier_app_names";

       
USB Mass Storage Enabled

/**
        * USB Mass Storage Enabled
        */
       public static final String USB_MASS_STORAGE_ENABLED = "usb_mass_storage_enabled";

       private static final Validator USB_MASS_STORAGE_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

       
If this setting is set (to anything), then all references
to Gmail on the device must change to Google Mail.

/**
        * If this setting is set (to anything), then all references
        * to Gmail on the device must change to Google Mail.
        */
       public static final String USE_GOOGLE_MAIL = "use_google_mail";

        
Webview Data reduction proxy key.

@hide
/**
         * Webview Data reduction proxy key.
         * @hide
         */
        public static final String WEBVIEW_DATA_REDUCTION_PROXY_KEY =
                "webview_data_reduction_proxy_key";

       
Whether or not the WebView fallback mechanism should be enabled.
0=disabled, 1=enabled.

@hide
/**
        * Whether or not the WebView fallback mechanism should be enabled.
        * 0=disabled, 1=enabled.
        * @hide
        */
       public static final String WEBVIEW_FALLBACK_LOGIC_ENABLED =
               "webview_fallback_logic_enabled";

       
Name of the package used as WebView provider (if unset the provider is instead determined
by the system).

@hide
/**
        * Name of the package used as WebView provider (if unset the provider is instead determined
        * by the system).
        * @hide
        */
       public static final String WEBVIEW_PROVIDER = "webview_provider";

       
Developer setting to enable WebView multiprocess rendering.

@hide
/**
        * Developer setting to enable WebView multiprocess rendering.
        * @hide
        */
       @SystemApi
       public static final String WEBVIEW_MULTIPROCESS = "webview_multiprocess";

       
The maximum number of notifications shown in 24 hours when switching networks.

@hide
/**
        * The maximum number of notifications shown in 24 hours when switching networks.
        * @hide
        */
       public static final String NETWORK_SWITCH_NOTIFICATION_DAILY_LIMIT =
              "network_switch_notification_daily_limit";

       
The minimum time in milliseconds between notifications when switching networks.

@hide
/**
        * The minimum time in milliseconds between notifications when switching networks.
        * @hide
        */
       public static final String NETWORK_SWITCH_NOTIFICATION_RATE_LIMIT_MILLIS =
              "network_switch_notification_rate_limit_millis";

       
Whether to automatically switch away from wifi networks that lose Internet access.
Only meaningful if config_networkAvoidBadWifi is set to 0, otherwise the system always
avoids such networks. Valid values are:
0: Don't avoid bad wifi, don't prompt the user. Get stuck on bad wifi like it's 2013.
null: Ask the user whether to switch away from bad wifi.
1: Avoid bad wifi.

@hide
/**
        * Whether to automatically switch away from wifi networks that lose Internet access.
        * Only meaningful if config_networkAvoidBadWifi is set to 0, otherwise the system always
        * avoids such networks. Valid values are:
        *
        * 0: Don't avoid bad wifi, don't prompt the user. Get stuck on bad wifi like it's 2013.
        * null: Ask the user whether to switch away from bad wifi.
        * 1: Avoid bad wifi.
        *
        * @hide
        */
       public static final String NETWORK_AVOID_BAD_WIFI = "network_avoid_bad_wifi";

       
User setting for ConnectivityManager.getMeteredMultipathPreference(). This value may be
overridden by the system based on device or application state. If null, the value
specified by config_networkMeteredMultipathPreference is used.

@hide
/**
        * User setting for ConnectivityManager.getMeteredMultipathPreference(). This value may be
        * overridden by the system based on device or application state. If null, the value
        * specified by config_networkMeteredMultipathPreference is used.
        *
        * @hide
        */
       public static final String NETWORK_METERED_MULTIPATH_PREFERENCE =
               "network_metered_multipath_preference";

        
Default daily multipath budget used by ConnectivityManager.getMultipathPreference()
on metered networks. This default quota is only used if quota could not be determined
from data plan or data limit/warning set by the user.

@hide
/**
         * Default daily multipath budget used by ConnectivityManager.getMultipathPreference()
         * on metered networks. This default quota is only used if quota could not be determined
         * from data plan or data limit/warning set by the user.
         * @hide
         */
        public static final String NETWORK_DEFAULT_DAILY_MULTIPATH_QUOTA_BYTES =
                "network_default_daily_multipath_quota_bytes";

        
Network watchlist last report time.

@hide
/**
         * Network watchlist last report time.
         * @hide
         */
        public static final String NETWORK_WATCHLIST_LAST_REPORT_TIME =
                "network_watchlist_last_report_time";

       
The thresholds of the wifi throughput badging (SD, HD etc.) as a comma-delimited list of
colon-delimited key-value pairs. The key is the badging enum value defined in
android.net.ScoredNetwork and the value is the minimum sustained network throughput in
kbps required for the badge. For example: "10:3000,20:5000,30:25000"

@hide
/**
        * The thresholds of the wifi throughput badging (SD, HD etc.) as a comma-delimited list of
        * colon-delimited key-value pairs. The key is the badging enum value defined in
        * android.net.ScoredNetwork and the value is the minimum sustained network throughput in
        * kbps required for the badge. For example: "10:3000,20:5000,30:25000"
        *
        * @hide
        */
       @SystemApi
       public static final String WIFI_BADGING_THRESHOLDS = "wifi_badging_thresholds";

       
Whether Wifi display is enabled/disabled
0=disabled. 1=enabled.

@hide
/**
        * Whether Wifi display is enabled/disabled
        * 0=disabled. 1=enabled.
        * @hide
        */
       public static final String WIFI_DISPLAY_ON = "wifi_display_on";

       
Whether Wifi display certification mode is enabled/disabled
0=disabled. 1=enabled.

@hide
/**
        * Whether Wifi display certification mode is enabled/disabled
        * 0=disabled. 1=enabled.
        * @hide
        */
       public static final String WIFI_DISPLAY_CERTIFICATION_ON =
               "wifi_display_certification_on";

       
WPS Configuration method used by Wifi display, this setting only
takes effect when WIFI_DISPLAY_CERTIFICATION_ON is 1 (enabled).
Possible values are:
WpsInfo.INVALID: use default WPS method chosen by framework
WpsInfo.PBC    : use Push button
WpsInfo.KEYPAD : use Keypad
WpsInfo.DISPLAY: use Display

@hide
/**
        * WPS Configuration method used by Wifi display, this setting only
        * takes effect when WIFI_DISPLAY_CERTIFICATION_ON is 1 (enabled).
        *
        * Possible values are:
        *
        * WpsInfo.INVALID: use default WPS method chosen by framework
        * WpsInfo.PBC    : use Push button
        * WpsInfo.KEYPAD : use Keypad
        * WpsInfo.DISPLAY: use Display
        * @hide
        */
       public static final String WIFI_DISPLAY_WPS_CONFIG =
           "wifi_display_wps_config";

       
Whether to notify the user of open networks.

 If not connected and the scan results have an open network, we will put this notification up. If we attempt to connect to a network or the open network(s) disappear, we remove the notification. When we show the notification, we will not show it again for Secure.WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY time. 
Deprecated:This feature is no longer controlled by this setting in VERSION_CODES.O.
/**
        * Whether to notify the user of open networks.
        * <p>
        * If not connected and the scan results have an open network, we will
        * put this notification up. If we attempt to connect to a network or
        * the open network(s) disappear, we remove the notification. When we
        * show the notification, we will not show it again for
        * {@link android.provider.Settings.Secure#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} time.
        *
        * @deprecated This feature is no longer controlled by this setting in
        * {@link android.os.Build.VERSION_CODES#O}.
        */
       @Deprecated
       public static final String WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON =
               "wifi_networks_available_notification_on";

       private static final Validator WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR =
               BOOLEAN_VALIDATOR;

       
Whether to notify the user of carrier networks.

 If not connected and the scan results have a carrier network, we will put this notification up. If we attempt to connect to a network or the carrier network(s) disappear, we remove the notification. When we show the notification, we will not show it again for WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY time. 
@hide
/**
        * Whether to notify the user of carrier networks.
        * <p>
        * If not connected and the scan results have a carrier network, we will
        * put this notification up. If we attempt to connect to a network or
        * the carrier network(s) disappear, we remove the notification. When we
        * show the notification, we will not show it again for
        * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} time.
        * @hide
        */
       public static final String WIFI_CARRIER_NETWORKS_AVAILABLE_NOTIFICATION_ON =
               "wifi_carrier_networks_available_notification_on";

       private static final Validator WIFI_CARRIER_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR =
               BOOLEAN_VALIDATOR;

       
{@hide}

/**
        * {@hide}
        */
       public static final String WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON =
               "wimax_networks_available_notification_on";

       
Delay (in seconds) before repeating the Wi-Fi networks available notification.
Connecting to a network will reset the timer.

/**
        * Delay (in seconds) before repeating the Wi-Fi networks available notification.
        * Connecting to a network will reset the timer.
        */
       public static final String WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY =
               "wifi_networks_available_repeat_delay";

       private static final Validator WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY_VALIDATOR =
               NON_NEGATIVE_INTEGER_VALIDATOR;

       
802.11 country code in ISO 3166 format

@hide
/**
        * 802.11 country code in ISO 3166 format
        * @hide
        */
       public static final String WIFI_COUNTRY_CODE = "wifi_country_code";

       
The interval in milliseconds to issue wake up scans when wifi needs
to connect. This is necessary to connect to an access point when
device is on the move and the screen is off.

@hide
/**
        * The interval in milliseconds to issue wake up scans when wifi needs
        * to connect. This is necessary to connect to an access point when
        * device is on the move and the screen is off.
        * @hide
        */
       public static final String WIFI_FRAMEWORK_SCAN_INTERVAL_MS =
               "wifi_framework_scan_interval_ms";

       
The interval in milliseconds after which Wi-Fi is considered idle.
When idle, it is possible for the device to be switched from Wi-Fi to
the mobile data network.

@hide
/**
        * The interval in milliseconds after which Wi-Fi is considered idle.
        * When idle, it is possible for the device to be switched from Wi-Fi to
        * the mobile data network.
        * @hide
        */
       public static final String WIFI_IDLE_MS = "wifi_idle_ms";

       
When the number of open networks exceeds this number, the
least-recently-used excess networks will be removed.

/**
        * When the number of open networks exceeds this number, the
        * least-recently-used excess networks will be removed.
        */
       public static final String WIFI_NUM_OPEN_NETWORKS_KEPT = "wifi_num_open_networks_kept";

       private static final Validator WIFI_NUM_OPEN_NETWORKS_KEPT_VALIDATOR =
               NON_NEGATIVE_INTEGER_VALIDATOR;

       
Whether the Wi-Fi should be on.  Only the Wi-Fi service should touch this.

/**
        * Whether the Wi-Fi should be on.  Only the Wi-Fi service should touch this.
        */
       public static final String WIFI_ON = "wifi_on";

       
Setting to allow scans to be enabled even wifi is turned off for connectivity.

@hide
/**
        * Setting to allow scans to be enabled even wifi is turned off for connectivity.
        * @hide
        */
       public static final String WIFI_SCAN_ALWAYS_AVAILABLE =
                "wifi_scan_always_enabled";

        
The interval in milliseconds at which wifi rtt ranging requests will be throttled when
they are coming from the background.

@hide
/**
         * The interval in milliseconds at which wifi rtt ranging requests will be throttled when
         * they are coming from the background.
         *
         * @hide
         */
        public static final String WIFI_RTT_BACKGROUND_EXEC_GAP_MS =
                "wifi_rtt_background_exec_gap_ms";

        
Whether soft AP will shut down after a timeout period when no devices are connected.
Type: int (0 for false, 1 for true)

@hide
/**
         * Whether soft AP will shut down after a timeout period when no devices are connected.
         *
         * Type: int (0 for false, 1 for true)
         * @hide
         */
        public static final String SOFT_AP_TIMEOUT_ENABLED = "soft_ap_timeout_enabled";

        private static final Validator SOFT_AP_TIMEOUT_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Value to specify if Wi-Fi Wakeup feature is enabled.
Type: int (0 for false, 1 for true)

@hide
/**
         * Value to specify if Wi-Fi Wakeup feature is enabled.
         *
         * Type: int (0 for false, 1 for true)
         * @hide
         */
        @SystemApi
        public static final String WIFI_WAKEUP_ENABLED = "wifi_wakeup_enabled";

        private static final Validator WIFI_WAKEUP_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
Value to specify whether network quality scores and badging should be shown in the UI.
Type: int (0 for false, 1 for true)

@hide
/**
         * Value to specify whether network quality scores and badging should be shown in the UI.
         *
         * Type: int (0 for false, 1 for true)
         * @hide
         */
        public static final String NETWORK_SCORING_UI_ENABLED = "network_scoring_ui_enabled";

        
Value to specify how long in milliseconds to retain seen score cache curves to be used
when generating SSID only bases score curves.
Type: long

@hide
/**
         * Value to specify how long in milliseconds to retain seen score cache curves to be used
         * when generating SSID only bases score curves.
         *
         * Type: long
         * @hide
         */
        public static final String SPEED_LABEL_CACHE_EVICTION_AGE_MILLIS =
                "speed_label_cache_eviction_age_millis";

        
Value to specify if network recommendations from NetworkScoreService are enabled. Type: int Valid values: -1 = Forced off 0 = Disabled 1 = Enabled Most readers of this setting should simply check if value == 1 to determined the enabled state. 
@hide
/**
         * Value to specify if network recommendations from
         * {@link com.android.server.NetworkScoreService} are enabled.
         *
         * Type: int
         * Valid values:
         *   -1 = Forced off
         *    0 = Disabled
         *    1 = Enabled
         *
         * Most readers of this setting should simply check if value == 1 to determined the
         * enabled state.
         * @hide
         */
        public static final String NETWORK_RECOMMENDATIONS_ENABLED =
                "network_recommendations_enabled";

        private static final Validator NETWORK_RECOMMENDATIONS_ENABLED_VALIDATOR =
                new SettingsValidators.DiscreteValueValidator(new String[] {"-1", "0", "1"});

        
Which package name to use for network recommendations. If null, network recommendations will neither be requested nor accepted. Use NetworkScoreManager.getActiveScorerPackage() to read this value and NetworkScoreManager.setActiveScorer(String) to write it. Type: string - package name 
@hide
/**
         * Which package name to use for network recommendations. If null, network recommendations
         * will neither be requested nor accepted.
         *
         * Use {@link NetworkScoreManager#getActiveScorerPackage()} to read this value and
         * {@link NetworkScoreManager#setActiveScorer(String)} to write it.
         *
         * Type: string - package name
         * @hide
         */
        public static final String NETWORK_RECOMMENDATIONS_PACKAGE =
                "network_recommendations_package";

        
The package name of the application that connect and secures high quality open wifi
networks automatically.
Type: string package name or null if the feature is either not provided or disabled.

@hide
/**
         * The package name of the application that connect and secures high quality open wifi
         * networks automatically.
         *
         * Type: string package name or null if the feature is either not provided or disabled.
         * @hide
         */
        @TestApi
        public static final String USE_OPEN_WIFI_PACKAGE = "use_open_wifi_package";

        private static final Validator USE_OPEN_WIFI_PACKAGE_VALIDATOR = new Validator() {
            @Override
            public boolean validate(@Nullable String value) {
                return (value == null) || PACKAGE_NAME_VALIDATOR.validate(value);
            }
        };

        
The number of milliseconds the NetworkScoreService will give a recommendation request to complete before returning a default response. Type: long 
@hide
Deprecated:to be removed
/**
         * The number of milliseconds the {@link com.android.server.NetworkScoreService}
         * will give a recommendation request to complete before returning a default response.
         *
         * Type: long
         * @hide
         * @deprecated to be removed
         */
        public static final String NETWORK_RECOMMENDATION_REQUEST_TIMEOUT_MS =
                "network_recommendation_request_timeout_ms";

        
The expiration time in milliseconds for the WifiKey request cache in RecommendedNetworkEvaluator. Type: long 
@hide
/**
         * The expiration time in milliseconds for the {@link android.net.WifiKey} request cache in
         * {@link com.android.server.wifi.RecommendedNetworkEvaluator}.
         *
         * Type: long
         * @hide
         */
        public static final String RECOMMENDED_NETWORK_EVALUATOR_CACHE_EXPIRY_MS =
                "recommended_network_evaluator_cache_expiry_ms";

        
Settings to allow BLE scans to be enabled even when Bluetooth is turned off for
connectivity.

@hide
/**
        * Settings to allow BLE scans to be enabled even when Bluetooth is turned off for
        * connectivity.
        * @hide
        */
        public static final String BLE_SCAN_ALWAYS_AVAILABLE = "ble_scan_always_enabled";

        
The length in milliseconds of a BLE scan window in a low-power scan mode.

@hide
/**
         * The length in milliseconds of a BLE scan window in a low-power scan mode.
         * @hide
         */
        public static final String BLE_SCAN_LOW_POWER_WINDOW_MS = "ble_scan_low_power_window_ms";

        
The length in milliseconds of a BLE scan window in a balanced scan mode.

@hide
/**
         * The length in milliseconds of a BLE scan window in a balanced scan mode.
         * @hide
         */
        public static final String BLE_SCAN_BALANCED_WINDOW_MS = "ble_scan_balanced_window_ms";

        
The length in milliseconds of a BLE scan window in a low-latency scan mode.

@hide
/**
         * The length in milliseconds of a BLE scan window in a low-latency scan mode.
         * @hide
         */
        public static final String BLE_SCAN_LOW_LATENCY_WINDOW_MS =
                "ble_scan_low_latency_window_ms";

        
The length in milliseconds of a BLE scan interval in a low-power scan mode.

@hide
/**
         * The length in milliseconds of a BLE scan interval in a low-power scan mode.
         * @hide
         */
        public static final String BLE_SCAN_LOW_POWER_INTERVAL_MS =
                "ble_scan_low_power_interval_ms";

        
The length in milliseconds of a BLE scan interval in a balanced scan mode.

@hide
/**
         * The length in milliseconds of a BLE scan interval in a balanced scan mode.
         * @hide
         */
        public static final String BLE_SCAN_BALANCED_INTERVAL_MS =
                "ble_scan_balanced_interval_ms";

        
The length in milliseconds of a BLE scan interval in a low-latency scan mode.

@hide
/**
         * The length in milliseconds of a BLE scan interval in a low-latency scan mode.
         * @hide
         */
        public static final String BLE_SCAN_LOW_LATENCY_INTERVAL_MS =
                "ble_scan_low_latency_interval_ms";

        
The mode that BLE scanning clients will be moved to when in the background.

@hide
/**
         * The mode that BLE scanning clients will be moved to when in the background.
         * @hide
         */
        public static final String BLE_SCAN_BACKGROUND_MODE = "ble_scan_background_mode";

       
Used to save the Wifi_ON state prior to tethering.
This state will be checked to restore Wifi after
the user turns off tethering.

@hide
/**
        * Used to save the Wifi_ON state prior to tethering.
        * This state will be checked to restore Wifi after
        * the user turns off tethering.
        *
        * @hide
        */
       public static final String WIFI_SAVED_STATE = "wifi_saved_state";

       
The interval in milliseconds to scan as used by the wifi supplicant

@hide
/**
        * The interval in milliseconds to scan as used by the wifi supplicant
        * @hide
        */
       public static final String WIFI_SUPPLICANT_SCAN_INTERVAL_MS =
               "wifi_supplicant_scan_interval_ms";

        
whether frameworks handles wifi auto-join

@hide
/**
         * whether frameworks handles wifi auto-join
         * @hide
         */
       public static final String WIFI_ENHANCED_AUTO_JOIN =
                "wifi_enhanced_auto_join";

        
whether settings show RSSI

@hide
/**
         * whether settings show RSSI
         * @hide
         */
        public static final String WIFI_NETWORK_SHOW_RSSI =
                "wifi_network_show_rssi";

        
The interval in milliseconds to scan at supplicant when p2p is connected

@hide
/**
        * The interval in milliseconds to scan at supplicant when p2p is connected
        * @hide
        */
       public static final String WIFI_SCAN_INTERVAL_WHEN_P2P_CONNECTED_MS =
               "wifi_scan_interval_p2p_connected_ms";

       
Whether the Wi-Fi watchdog is enabled.

/**
        * Whether the Wi-Fi watchdog is enabled.
        */
       public static final String WIFI_WATCHDOG_ON = "wifi_watchdog_on";

       
Setting to turn off poor network avoidance on Wi-Fi. Feature is enabled by default and
the setting needs to be set to 0 to disable it.

@hide
/**
        * Setting to turn off poor network avoidance on Wi-Fi. Feature is enabled by default and
        * the setting needs to be set to 0 to disable it.
        * @hide
        */
       public static final String WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED =
               "wifi_watchdog_poor_network_test_enabled";

       private static final Validator WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED_VALIDATOR =
               ANY_STRING_VALIDATOR;

       
Setting to turn on suspend optimizations at screen off on Wi-Fi. Enabled by default and
needs to be set to 0 to disable it.

@hide
/**
        * Setting to turn on suspend optimizations at screen off on Wi-Fi. Enabled by default and
        * needs to be set to 0 to disable it.
        * @hide
        */
       public static final String WIFI_SUSPEND_OPTIMIZATIONS_ENABLED =
               "wifi_suspend_optimizations_enabled";

       
Setting to enable verbose logging in Wi-Fi; disabled by default, and setting to 1
will enable it. In the future, additional values may be supported.

@hide
/**
        * Setting to enable verbose logging in Wi-Fi; disabled by default, and setting to 1
        * will enable it. In the future, additional values may be supported.
        * @hide
        */
       public static final String WIFI_VERBOSE_LOGGING_ENABLED =
               "wifi_verbose_logging_enabled";

        
Setting to enable connected MAC randomization in Wi-Fi; disabled by default, and
setting to 1 will enable it. In the future, additional values may be supported.

@hide
/**
         * Setting to enable connected MAC randomization in Wi-Fi; disabled by default, and
         * setting to 1 will enable it. In the future, additional values may be supported.
         * @hide
         */
        public static final String WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED =
                "wifi_connected_mac_randomization_enabled";

        
Parameters to adjust the performance of framework wifi scoring methods.


Encoded as a comma-separated key=value list, for example:
  "rssi5=-80:-77:-70:-57,rssi2=-83:-80:-73:-60,horizon=15"
This is intended for experimenting with new parameter values,
and is normally unset or empty. The example does not include all
parameters that may be honored.
Default values are provided by code or device configurations.
Errors in the parameters will cause the entire setting to be ignored.

@hide
/**
         * Parameters to adjust the performance of framework wifi scoring methods.
         * <p>
         * Encoded as a comma-separated key=value list, for example:
         *   "rssi5=-80:-77:-70:-57,rssi2=-83:-80:-73:-60,horizon=15"
         * This is intended for experimenting with new parameter values,
         * and is normally unset or empty. The example does not include all
         * parameters that may be honored.
         * Default values are provided by code or device configurations.
         * Errors in the parameters will cause the entire setting to be ignored.
         * @hide
         */
        public static final String WIFI_SCORE_PARAMS =
                "wifi_score_params";

       
The maximum number of times we will retry a connection to an access
point for which we have failed in acquiring an IP address from DHCP.
A value of N means that we will make N+1 connection attempts in all.

/**
        * The maximum number of times we will retry a connection to an access
        * point for which we have failed in acquiring an IP address from DHCP.
        * A value of N means that we will make N+1 connection attempts in all.
        */
       public static final String WIFI_MAX_DHCP_RETRY_COUNT = "wifi_max_dhcp_retry_count";

       
Maximum amount of time in milliseconds to hold a wakelock while waiting for mobile
data connectivity to be established after a disconnect from Wi-Fi.

/**
        * Maximum amount of time in milliseconds to hold a wakelock while waiting for mobile
        * data connectivity to be established after a disconnect from Wi-Fi.
        */
       public static final String WIFI_MOBILE_DATA_TRANSITION_WAKELOCK_TIMEOUT_MS =
           "wifi_mobile_data_transition_wakelock_timeout_ms";

       
This setting controls whether WiFi configurations created by a Device Owner app
should be locked down (that is, be editable or removable only by the Device Owner App,
not even by Settings app).
This setting takes integer values. Non-zero values mean DO created configurations
are locked down. Value of zero means they are not. Default value in the absence of
actual value to this setting is 0.

/**
        * This setting controls whether WiFi configurations created by a Device Owner app
        * should be locked down (that is, be editable or removable only by the Device Owner App,
        * not even by Settings app).
        * This setting takes integer values. Non-zero values mean DO created configurations
        * are locked down. Value of zero means they are not. Default value in the absence of
        * actual value to this setting is 0.
        */
       public static final String WIFI_DEVICE_OWNER_CONFIGS_LOCKDOWN =
               "wifi_device_owner_configs_lockdown";

       
@hide
/**
        * The operational wifi frequency band
        * Set to one of {@link WifiManager#WIFI_FREQUENCY_BAND_AUTO},
        * {@link WifiManager#WIFI_FREQUENCY_BAND_5GHZ} or
        * {@link WifiManager#WIFI_FREQUENCY_BAND_2GHZ}
        *
        * @hide
        */
       public static final String WIFI_FREQUENCY_BAND = "wifi_frequency_band";

       
The Wi-Fi peer-to-peer device name

@hide
/**
        * The Wi-Fi peer-to-peer device name
        * @hide
        */
       public static final String WIFI_P2P_DEVICE_NAME = "wifi_p2p_device_name";

       
The min time between wifi disable and wifi enable

@hide
/**
        * The min time between wifi disable and wifi enable
        * @hide
        */
       public static final String WIFI_REENABLE_DELAY_MS = "wifi_reenable_delay";

       
Timeout for ephemeral networks when all known BSSIDs go out of range. We will disconnect
from an ephemeral network if there is no BSSID for that network with a non-null score that
has been seen in this time period.
If this is less than or equal to zero, we use a more conservative behavior and only check
for a non-null score from the currently connected or target BSSID.

@hide
/**
        * Timeout for ephemeral networks when all known BSSIDs go out of range. We will disconnect
        * from an ephemeral network if there is no BSSID for that network with a non-null score that
        * has been seen in this time period.
        *
        * If this is less than or equal to zero, we use a more conservative behavior and only check
        * for a non-null score from the currently connected or target BSSID.
        * @hide
        */
       public static final String WIFI_EPHEMERAL_OUT_OF_RANGE_TIMEOUT_MS =
               "wifi_ephemeral_out_of_range_timeout_ms";

       
The number of milliseconds to delay when checking for data stalls during
non-aggressive detection. (screen is turned off.)

@hide
/**
        * The number of milliseconds to delay when checking for data stalls during
        * non-aggressive detection. (screen is turned off.)
        * @hide
        */
       public static final String DATA_STALL_ALARM_NON_AGGRESSIVE_DELAY_IN_MS =
               "data_stall_alarm_non_aggressive_delay_in_ms";

       
The number of milliseconds to delay when checking for data stalls during
aggressive detection. (screen on or suspected data stall)

@hide
/**
        * The number of milliseconds to delay when checking for data stalls during
        * aggressive detection. (screen on or suspected data stall)
        * @hide
        */
       public static final String DATA_STALL_ALARM_AGGRESSIVE_DELAY_IN_MS =
               "data_stall_alarm_aggressive_delay_in_ms";

       
The number of milliseconds to allow the provisioning apn to remain active

@hide
/**
        * The number of milliseconds to allow the provisioning apn to remain active
        * @hide
        */
       public static final String PROVISIONING_APN_ALARM_DELAY_IN_MS =
               "provisioning_apn_alarm_delay_in_ms";

       
The interval in milliseconds at which to check gprs registration
after the first registration mismatch of gprs and voice service,
to detect possible data network registration problems.

@hide
/**
        * The interval in milliseconds at which to check gprs registration
        * after the first registration mismatch of gprs and voice service,
        * to detect possible data network registration problems.
        *
        * @hide
        */
       public static final String GPRS_REGISTER_CHECK_PERIOD_MS =
               "gprs_register_check_period_ms";

       
Nonzero causes Log.wtf() to crash.

@hide
/**
        * Nonzero causes Log.wtf() to crash.
        * @hide
        */
       public static final String WTF_IS_FATAL = "wtf_is_fatal";

       
Ringer mode. This is used internally, changing this value will not
change the ringer mode. See AudioManager.

/**
        * Ringer mode. This is used internally, changing this value will not
        * change the ringer mode. See AudioManager.
        */
       public static final String MODE_RINGER = "mode_ringer";

       
Overlay display devices setting.
The associated value is a specially formatted string that describes the
size and density of simulated secondary display devices.


Format: {width}x{height}/{dpi};...


Example:

    

  • 1280x720/213: make one overlay that is 1280x720 at 213dpi.
    • 

  • 1920x1080/320;1280x720/213: make two overlays, the first
at 1080p and the second at 720p.
    • 

  • If the value is empty, then no overlay display devices are created.
    • 



@hide
/**
        * Overlay display devices setting.
        * The associated value is a specially formatted string that describes the
        * size and density of simulated secondary display devices.
        * <p>
        * Format: {width}x{height}/{dpi};...
        * </p><p>
        * Example:
        * <ul>
        * <li><code>1280x720/213</code>: make one overlay that is 1280x720 at 213dpi.</li>
        * <li><code>1920x1080/320;1280x720/213</code>: make two overlays, the first
        * at 1080p and the second at 720p.</li>
        * <li>If the value is empty, then no overlay display devices are created.</li>
        * </ul></p>
        *
        * @hide
        */
       public static final String OVERLAY_DISPLAY_DEVICES = "overlay_display_devices";

        
Threshold values for the duration and level of a discharge cycle,
under which we log discharge cycle info.

@hide
/**
         * Threshold values for the duration and level of a discharge cycle,
         * under which we log discharge cycle info.
         *
         * @hide
         */
        public static final String
                BATTERY_DISCHARGE_DURATION_THRESHOLD = "battery_discharge_duration_threshold";

        
@hide
/** @hide */
        public static final String BATTERY_DISCHARGE_THRESHOLD = "battery_discharge_threshold";

        
Flag for allowing ActivityManagerService to send ACTION_APP_ERROR
intents on application crashes and ANRs. If this is disabled, the
crash/ANR dialog will never display the "Report" button.


Type: int (0 = disallow, 1 = allow)

@hide
/**
         * Flag for allowing ActivityManagerService to send ACTION_APP_ERROR
         * intents on application crashes and ANRs. If this is disabled, the
         * crash/ANR dialog will never display the "Report" button.
         * <p>
         * Type: int (0 = disallow, 1 = allow)
         *
         * @hide
         */
        public static final String SEND_ACTION_APP_ERROR = "send_action_app_error";

        
Maximum age of entries kept by DropBoxManager. 
@hide
/**
         * Maximum age of entries kept by {@link DropBoxManager}.
         *
         * @hide
         */
        public static final String DROPBOX_AGE_SECONDS = "dropbox_age_seconds";

        
Maximum number of entry files which DropBoxManager will keep around. 
@hide
/**
         * Maximum number of entry files which {@link DropBoxManager} will keep
         * around.
         *
         * @hide
         */
        public static final String DROPBOX_MAX_FILES = "dropbox_max_files";

        
Maximum amount of disk space used by DropBoxManager no matter what. 
@hide
/**
         * Maximum amount of disk space used by {@link DropBoxManager} no matter
         * what.
         *
         * @hide
         */
        public static final String DROPBOX_QUOTA_KB = "dropbox_quota_kb";

        
Percent of free disk (excluding reserve) which DropBoxManager will use. 
@hide
/**
         * Percent of free disk (excluding reserve) which {@link DropBoxManager}
         * will use.
         *
         * @hide
         */
        public static final String DROPBOX_QUOTA_PERCENT = "dropbox_quota_percent";

        
Percent of total disk which DropBoxManager will never dip into. 
@hide
/**
         * Percent of total disk which {@link DropBoxManager} will never dip
         * into.
         *
         * @hide
         */
        public static final String DROPBOX_RESERVE_PERCENT = "dropbox_reserve_percent";

        
Prefix for per-tag dropbox disable/enable settings.

@hide
/**
         * Prefix for per-tag dropbox disable/enable settings.
         *
         * @hide
         */
        public static final String DROPBOX_TAG_PREFIX = "dropbox:";

        
Lines of logcat to include with system crash/ANR/etc. reports, as a
prefix of the dropbox tag of the report type. For example,
"logcat_for_system_server_anr" controls the lines of logcat captured
with system server ANR reports. 0 to disable.

@hide
/**
         * Lines of logcat to include with system crash/ANR/etc. reports, as a
         * prefix of the dropbox tag of the report type. For example,
         * "logcat_for_system_server_anr" controls the lines of logcat captured
         * with system server ANR reports. 0 to disable.
         *
         * @hide
         */
        public static final String ERROR_LOGCAT_PREFIX = "logcat_for_";

        
The interval in minutes after which the amount of free storage left
on the device is logged to the event log

@hide
/**
         * The interval in minutes after which the amount of free storage left
         * on the device is logged to the event log
         *
         * @hide
         */
        public static final String SYS_FREE_STORAGE_LOG_INTERVAL = "sys_free_storage_log_interval";

        
Threshold for the amount of change in disk free space required to
report the amount of free space. Used to prevent spamming the logs
when the disk free space isn't changing frequently.

@hide
/**
         * Threshold for the amount of change in disk free space required to
         * report the amount of free space. Used to prevent spamming the logs
         * when the disk free space isn't changing frequently.
         *
         * @hide
         */
        public static final String
                DISK_FREE_CHANGE_REPORTING_THRESHOLD = "disk_free_change_reporting_threshold";

        
Minimum percentage of free storage on the device that is used to
determine if the device is running low on storage. The default is 10.


Say this value is set to 10, the device is considered running low on
storage if 90% or more of the device storage is filled up.

@hide
/**
         * Minimum percentage of free storage on the device that is used to
         * determine if the device is running low on storage. The default is 10.
         * <p>
         * Say this value is set to 10, the device is considered running low on
         * storage if 90% or more of the device storage is filled up.
         *
         * @hide
         */
        public static final String
                SYS_STORAGE_THRESHOLD_PERCENTAGE = "sys_storage_threshold_percentage";

        
Maximum byte size of the low storage threshold. This is to ensure that SYS_STORAGE_THRESHOLD_PERCENTAGE does not result in an overly large threshold for large storage devices. Currently this must be less than 2GB. This default is 500MB. 
@hide
/**
         * Maximum byte size of the low storage threshold. This is to ensure
         * that {@link #SYS_STORAGE_THRESHOLD_PERCENTAGE} does not result in an
         * overly large threshold for large storage devices. Currently this must
         * be less than 2GB. This default is 500MB.
         *
         * @hide
         */
        public static final String
                SYS_STORAGE_THRESHOLD_MAX_BYTES = "sys_storage_threshold_max_bytes";

        
Minimum bytes of free storage on the device before the data partition
is considered full. By default, 1 MB is reserved to avoid system-wide
SQLite disk full exceptions.

@hide
/**
         * Minimum bytes of free storage on the device before the data partition
         * is considered full. By default, 1 MB is reserved to avoid system-wide
         * SQLite disk full exceptions.
         *
         * @hide
         */
        public static final String
                SYS_STORAGE_FULL_THRESHOLD_BYTES = "sys_storage_full_threshold_bytes";

        
Minimum percentage of storage on the device that is reserved for
cached data.

@hide
/**
         * Minimum percentage of storage on the device that is reserved for
         * cached data.
         *
         * @hide
         */
        public static final String
                SYS_STORAGE_CACHE_PERCENTAGE = "sys_storage_cache_percentage";

        
Maximum bytes of storage on the device that is reserved for cached
data.

@hide
/**
         * Maximum bytes of storage on the device that is reserved for cached
         * data.
         *
         * @hide
         */
        public static final String
                SYS_STORAGE_CACHE_MAX_BYTES = "sys_storage_cache_max_bytes";

        
The maximum reconnect delay for short network outages or when the
network is suspended due to phone use.

@hide
/**
         * The maximum reconnect delay for short network outages or when the
         * network is suspended due to phone use.
         *
         * @hide
         */
        public static final String
                SYNC_MAX_RETRY_DELAY_IN_SECONDS = "sync_max_retry_delay_in_seconds";

        
The number of milliseconds to delay before sending out ConnectivityManager.CONNECTIVITY_ACTION broadcasts. Ignored. 
@hide
/**
         * The number of milliseconds to delay before sending out
         * {@link ConnectivityManager#CONNECTIVITY_ACTION} broadcasts. Ignored.
         *
         * @hide
         */
        public static final String CONNECTIVITY_CHANGE_DELAY = "connectivity_change_delay";


        
Network sampling interval, in seconds. We'll generate link information
about bytes/packets sent and error rates based on data sampled in this interval

@hide
/**
         * Network sampling interval, in seconds. We'll generate link information
         * about bytes/packets sent and error rates based on data sampled in this interval
         *
         * @hide
         */

        public static final String CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS =
                "connectivity_sampling_interval_in_seconds";

        
The series of successively longer delays used in retrying to download PAC file.
Last delay is used between successful PAC downloads.

@hide
/**
         * The series of successively longer delays used in retrying to download PAC file.
         * Last delay is used between successful PAC downloads.
         *
         * @hide
         */
        public static final String PAC_CHANGE_DELAY = "pac_change_delay";

        
Don't attempt to detect captive portals.

@hide
/**
         * Don't attempt to detect captive portals.
         *
         * @hide
         */
        public static final int CAPTIVE_PORTAL_MODE_IGNORE = 0;

        
When detecting a captive portal, display a notification that
prompts the user to sign in.

@hide
/**
         * When detecting a captive portal, display a notification that
         * prompts the user to sign in.
         *
         * @hide
         */
        public static final int CAPTIVE_PORTAL_MODE_PROMPT = 1;

        
When detecting a captive portal, immediately disconnect from the
network and do not reconnect to that network in the future.

@hide
/**
         * When detecting a captive portal, immediately disconnect from the
         * network and do not reconnect to that network in the future.
         *
         * @hide
         */
        public static final int CAPTIVE_PORTAL_MODE_AVOID = 2;

        
What to do when connecting a network that presents a captive portal.
Must be one of the CAPTIVE_PORTAL_MODE_* constants above.
The default for this setting is CAPTIVE_PORTAL_MODE_PROMPT.

@hide
/**
         * What to do when connecting a network that presents a captive portal.
         * Must be one of the CAPTIVE_PORTAL_MODE_* constants above.
         *
         * The default for this setting is CAPTIVE_PORTAL_MODE_PROMPT.
         * @hide
         */
        public static final String CAPTIVE_PORTAL_MODE = "captive_portal_mode";

        
Setting to turn off captive portal detection. Feature is enabled by
default and the setting needs to be set to 0 to disable it.

Deprecated:use CAPTIVE_PORTAL_MODE_IGNORE to disable captive portal detection
@hide
/**
         * Setting to turn off captive portal detection. Feature is enabled by
         * default and the setting needs to be set to 0 to disable it.
         *
         * @deprecated use CAPTIVE_PORTAL_MODE_IGNORE to disable captive portal detection
         * @hide
         */
        @Deprecated
        public static final String
                CAPTIVE_PORTAL_DETECTION_ENABLED = "captive_portal_detection_enabled";

        
The server used for captive portal detection upon a new conection. A
204 response code from the server is used for validation.
TODO: remove this deprecated symbol.

@hide
/**
         * The server used for captive portal detection upon a new conection. A
         * 204 response code from the server is used for validation.
         * TODO: remove this deprecated symbol.
         *
         * @hide
         */
        public static final String CAPTIVE_PORTAL_SERVER = "captive_portal_server";

        
The URL used for HTTPS captive portal detection upon a new connection.
A 204 response code from the server is used for validation.

@hide
/**
         * The URL used for HTTPS captive portal detection upon a new connection.
         * A 204 response code from the server is used for validation.
         *
         * @hide
         */
        public static final String CAPTIVE_PORTAL_HTTPS_URL = "captive_portal_https_url";

        
The URL used for HTTP captive portal detection upon a new connection.
A 204 response code from the server is used for validation.

@hide
/**
         * The URL used for HTTP captive portal detection upon a new connection.
         * A 204 response code from the server is used for validation.
         *
         * @hide
         */
        public static final String CAPTIVE_PORTAL_HTTP_URL = "captive_portal_http_url";

        
The URL used for fallback HTTP captive portal detection when previous HTTP
and HTTPS captive portal detection attemps did not return a conclusive answer.

@hide
/**
         * The URL used for fallback HTTP captive portal detection when previous HTTP
         * and HTTPS captive portal detection attemps did not return a conclusive answer.
         *
         * @hide
         */
        public static final String CAPTIVE_PORTAL_FALLBACK_URL = "captive_portal_fallback_url";

        
A comma separated list of URLs used for captive portal detection in addition to the
fallback HTTP url associated with the CAPTIVE_PORTAL_FALLBACK_URL settings.

@hide
/**
         * A comma separated list of URLs used for captive portal detection in addition to the
         * fallback HTTP url associated with the CAPTIVE_PORTAL_FALLBACK_URL settings.
         *
         * @hide
         */
        public static final String CAPTIVE_PORTAL_OTHER_FALLBACK_URLS =
                "captive_portal_other_fallback_urls";

        
A list of captive portal detection specifications used in addition to the fallback URLs.
Each spec has the format url@@/@@statusCodeRegex@@/@@contentRegex. Specs are separated
by "@@,@@".

@hide
/**
         * A list of captive portal detection specifications used in addition to the fallback URLs.
         * Each spec has the format url@@/@@statusCodeRegex@@/@@contentRegex. Specs are separated
         * by "@@,@@".
         * @hide
         */
        public static final String CAPTIVE_PORTAL_FALLBACK_PROBE_SPECS =
                "captive_portal_fallback_probe_specs";

        
Whether to use HTTPS for network validation. This is enabled by default and the setting
needs to be set to 0 to disable it. This setting is a misnomer because captive portals
don't actually use HTTPS, but it's consistent with the other settings.

@hide
/**
         * Whether to use HTTPS for network validation. This is enabled by default and the setting
         * needs to be set to 0 to disable it. This setting is a misnomer because captive portals
         * don't actually use HTTPS, but it's consistent with the other settings.
         *
         * @hide
         */
        public static final String CAPTIVE_PORTAL_USE_HTTPS = "captive_portal_use_https";

        
Which User-Agent string to use in the header of the captive portal detection probes.
The User-Agent field is unset when this setting has no value (HttpUrlConnection default).

@hide
/**
         * Which User-Agent string to use in the header of the captive portal detection probes.
         * The User-Agent field is unset when this setting has no value (HttpUrlConnection default).
         *
         * @hide
         */
        public static final String CAPTIVE_PORTAL_USER_AGENT = "captive_portal_user_agent";

        
Whether network service discovery is enabled.

@hide
/**
         * Whether network service discovery is enabled.
         *
         * @hide
         */
        public static final String NSD_ON = "nsd_on";

        
Let user pick default install location.

@hide
/**
         * Let user pick default install location.
         *
         * @hide
         */
        public static final String SET_INSTALL_LOCATION = "set_install_location";

        
Default install location value.
0 = auto, let system decide
1 = internal
2 = sdcard

@hide
/**
         * Default install location value.
         * 0 = auto, let system decide
         * 1 = internal
         * 2 = sdcard
         * @hide
         */
        public static final String DEFAULT_INSTALL_LOCATION = "default_install_location";

        
ms during which to consume extra events related to Inet connection
condition after a transtion to fully-connected

@hide
/**
         * ms during which to consume extra events related to Inet connection
         * condition after a transtion to fully-connected
         *
         * @hide
         */
        public static final String
                INET_CONDITION_DEBOUNCE_UP_DELAY = "inet_condition_debounce_up_delay";

        
ms during which to consume extra events related to Inet connection
condtion after a transtion to partly-connected

@hide
/**
         * ms during which to consume extra events related to Inet connection
         * condtion after a transtion to partly-connected
         *
         * @hide
         */
        public static final String
                INET_CONDITION_DEBOUNCE_DOWN_DELAY = "inet_condition_debounce_down_delay";

        
{@hide} 
/** {@hide} */
        public static final String
                READ_EXTERNAL_STORAGE_ENFORCED_DEFAULT = "read_external_storage_enforced_default";

        
Host name and port for global http proxy. Uses ':' seperator for
between host and port.

/**
         * Host name and port for global http proxy. Uses ':' seperator for
         * between host and port.
         */
        public static final String HTTP_PROXY = "http_proxy";

        
Host name for global http proxy. Set via ConnectivityManager.

@hide
/**
         * Host name for global http proxy. Set via ConnectivityManager.
         *
         * @hide
         */
        public static final String GLOBAL_HTTP_PROXY_HOST = "global_http_proxy_host";

        
Integer host port for global http proxy. Set via ConnectivityManager.

@hide
/**
         * Integer host port for global http proxy. Set via ConnectivityManager.
         *
         * @hide
         */
        public static final String GLOBAL_HTTP_PROXY_PORT = "global_http_proxy_port";

        
Exclusion list for global proxy. This string contains a list of
comma-separated domains where the global proxy does not apply.
Domains should be listed in a comma- separated list. Example of
acceptable formats: ".domain1.com,my.domain2.com" Use
ConnectivityManager to set/get.

@hide
/**
         * Exclusion list for global proxy. This string contains a list of
         * comma-separated domains where the global proxy does not apply.
         * Domains should be listed in a comma- separated list. Example of
         * acceptable formats: ".domain1.com,my.domain2.com" Use
         * ConnectivityManager to set/get.
         *
         * @hide
         */
        public static final String
                GLOBAL_HTTP_PROXY_EXCLUSION_LIST = "global_http_proxy_exclusion_list";

        
The location PAC File for the proxy.

@hide
/**
         * The location PAC File for the proxy.
         * @hide
         */
        public static final String
                GLOBAL_HTTP_PROXY_PAC = "global_proxy_pac_url";

        
Enables the UI setting to allow the user to specify the global HTTP
proxy and associated exclusion list.

@hide
/**
         * Enables the UI setting to allow the user to specify the global HTTP
         * proxy and associated exclusion list.
         *
         * @hide
         */
        public static final String SET_GLOBAL_HTTP_PROXY = "set_global_http_proxy";

        
Setting for default DNS in case nobody suggests one

@hide
/**
         * Setting for default DNS in case nobody suggests one
         *
         * @hide
         */
        public static final String DEFAULT_DNS_SERVER = "default_dns_server";

        
The requested Private DNS mode (string), and an accompanying specifier (string).
Currently, the specifier holds the chosen provider name when the mode requests
a specific provider. It may be used to store the provider name even when the
mode changes so that temporarily disabling and re-enabling the specific
provider mode does not necessitate retyping the provider hostname.

@hide
/**
         * The requested Private DNS mode (string), and an accompanying specifier (string).
         *
         * Currently, the specifier holds the chosen provider name when the mode requests
         * a specific provider. It may be used to store the provider name even when the
         * mode changes so that temporarily disabling and re-enabling the specific
         * provider mode does not necessitate retyping the provider hostname.
         *
         * @hide
         */
        public static final String PRIVATE_DNS_MODE = "private_dns_mode";

        private static final Validator PRIVATE_DNS_MODE_VALIDATOR = ANY_STRING_VALIDATOR;

        
@hide
/**
         * @hide
         */
        public static final String PRIVATE_DNS_SPECIFIER = "private_dns_specifier";

        private static final Validator PRIVATE_DNS_SPECIFIER_VALIDATOR = ANY_STRING_VALIDATOR;

        
Forced override of the default mode (hardcoded as "automatic", nee "opportunistic").
This allows changing the default mode without effectively disabling other modes,
all of which require explicit user action to enable/configure. See also b/79719289.
Value is a string, suitable for assignment to PRIVATE_DNS_MODE above.
{@hide}

/**
          * Forced override of the default mode (hardcoded as "automatic", nee "opportunistic").
          * This allows changing the default mode without effectively disabling other modes,
          * all of which require explicit user action to enable/configure. See also b/79719289.
          *
          * Value is a string, suitable for assignment to PRIVATE_DNS_MODE above.
          *
          * {@hide}
          */
        public static final String PRIVATE_DNS_DEFAULT_MODE = "private_dns_default_mode";

        
{@hide} 
/** {@hide} */
        public static final String
                BLUETOOTH_HEADSET_PRIORITY_PREFIX = "bluetooth_headset_priority_";
        
{@hide} 
/** {@hide} */
        public static final String
                BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX = "bluetooth_a2dp_sink_priority_";
        
{@hide} 
/** {@hide} */
        public static final String
                BLUETOOTH_A2DP_SRC_PRIORITY_PREFIX = "bluetooth_a2dp_src_priority_";
        
{@hide} 
/** {@hide} */
        public static final String BLUETOOTH_A2DP_SUPPORTS_OPTIONAL_CODECS_PREFIX =
                "bluetooth_a2dp_supports_optional_codecs_";
        
{@hide} 
/** {@hide} */
        public static final String BLUETOOTH_A2DP_OPTIONAL_CODECS_ENABLED_PREFIX =
                "bluetooth_a2dp_optional_codecs_enabled_";
        
{@hide} 
/** {@hide} */
        public static final String
                BLUETOOTH_INPUT_DEVICE_PRIORITY_PREFIX = "bluetooth_input_device_priority_";
        
{@hide} 
/** {@hide} */
        public static final String
                BLUETOOTH_MAP_PRIORITY_PREFIX = "bluetooth_map_priority_";
        
{@hide} 
/** {@hide} */
        public static final String
                BLUETOOTH_MAP_CLIENT_PRIORITY_PREFIX = "bluetooth_map_client_priority_";
        
{@hide} 
/** {@hide} */
        public static final String
                BLUETOOTH_PBAP_CLIENT_PRIORITY_PREFIX = "bluetooth_pbap_client_priority_";
        
{@hide} 
/** {@hide} */
        public static final String
                BLUETOOTH_SAP_PRIORITY_PREFIX = "bluetooth_sap_priority_";
        
{@hide} 
/** {@hide} */
        public static final String
                BLUETOOTH_PAN_PRIORITY_PREFIX = "bluetooth_pan_priority_";
        
{@hide} 
/** {@hide} */
        public static final String
                BLUETOOTH_HEARING_AID_PRIORITY_PREFIX = "bluetooth_hearing_aid_priority_";

        
Activity manager specific settings.
This is encoded as a key=value list, separated by commas. Ex:
"gc_timeout=5000,max_cached_processes=24"
The following keys are supported:

max_cached_processes                 (int)
background_settle_time               (long)
fgservice_min_shown_time             (long)
fgservice_min_report_time            (long)
fgservice_screen_on_before_time      (long)
fgservice_screen_on_after_time       (long)
content_provider_retain_time         (long)
gc_timeout                           (long)
gc_min_interval                      (long)
full_pss_min_interval                (long)
full_pss_lowered_interval            (long)
power_check_interval                 (long)
power_check_max_cpu_1                (int)
power_check_max_cpu_2                (int)
power_check_max_cpu_3                (int)
power_check_max_cpu_4                (int)
service_usage_interaction_time       (long)
usage_stats_interaction_interval     (long)
service_restart_duration             (long)
service_reset_run_duration           (long)
service_restart_duration_factor      (int)
service_min_restart_time_between     (long)
service_max_inactivity               (long)
service_bg_start_timeout             (long)
process_start_async                  (boolean)




Type: string

See Also:
  • ActivityManagerConstants
@hide
/**
         * Activity manager specific settings.
         * This is encoded as a key=value list, separated by commas. Ex:
         *
         * "gc_timeout=5000,max_cached_processes=24"
         *
         * The following keys are supported:
         *
         * <pre>
         * max_cached_processes                 (int)
         * background_settle_time               (long)
         * fgservice_min_shown_time             (long)
         * fgservice_min_report_time            (long)
         * fgservice_screen_on_before_time      (long)
         * fgservice_screen_on_after_time       (long)
         * content_provider_retain_time         (long)
         * gc_timeout                           (long)
         * gc_min_interval                      (long)
         * full_pss_min_interval                (long)
         * full_pss_lowered_interval            (long)
         * power_check_interval                 (long)
         * power_check_max_cpu_1                (int)
         * power_check_max_cpu_2                (int)
         * power_check_max_cpu_3                (int)
         * power_check_max_cpu_4                (int)
         * service_usage_interaction_time       (long)
         * usage_stats_interaction_interval     (long)
         * service_restart_duration             (long)
         * service_reset_run_duration           (long)
         * service_restart_duration_factor      (int)
         * service_min_restart_time_between     (long)
         * service_max_inactivity               (long)
         * service_bg_start_timeout             (long)
         * process_start_async                  (boolean)
         * </pre>
         *
         * <p>
         * Type: string
         * @hide
         * @see com.android.server.am.ActivityManagerConstants
         */
        public static final String ACTIVITY_MANAGER_CONSTANTS = "activity_manager_constants";

        
Feature flag to enable or disable the activity starts logging feature.
Type: int (0 for false, 1 for true)
Default: 0

@hide
/**
         * Feature flag to enable or disable the activity starts logging feature.
         * Type: int (0 for false, 1 for true)
         * Default: 0
         * @hide
         */
        public static final String ACTIVITY_STARTS_LOGGING_ENABLED
                = "activity_starts_logging_enabled";

        
App ops specific settings.
This is encoded as a key=value list, separated by commas. Ex:
"state_settle_time=10000"
The following keys are supported:

top_state_settle_time                (long)
fg_service_state_settle_time         (long)
bg_state_settle_time                 (long)




Type: string

See Also:
  • Constants
@hide
/**
         * App ops specific settings.
         * This is encoded as a key=value list, separated by commas. Ex:
         *
         * "state_settle_time=10000"
         *
         * The following keys are supported:
         *
         * <pre>
         * top_state_settle_time                (long)
         * fg_service_state_settle_time         (long)
         * bg_state_settle_time                 (long)
         * </pre>
         *
         * <p>
         * Type: string
         * @hide
         * @see com.android.server.AppOpsService.Constants
         */
        public static final String APP_OPS_CONSTANTS = "app_ops_constants";

        
Device Idle (Doze) specific settings.
This is encoded as a key=value list, separated by commas. Ex:
"inactive_to=60000,sensing_to=400000"
The following keys are supported:

inactive_to                      (long)
sensing_to                       (long)
motion_inactive_to               (long)
idle_after_inactive_to           (long)
idle_pending_to                  (long)
max_idle_pending_to              (long)
idle_pending_factor              (float)
idle_to                          (long)
max_idle_to                      (long)
idle_factor                      (float)
min_time_to_alarm                (long)
max_temp_app_whitelist_duration  (long)
notification_whitelist_duration  (long)




Type: string

See Also:
  • Constants
@hide
/**
         * Device Idle (Doze) specific settings.
         * This is encoded as a key=value list, separated by commas. Ex:
         *
         * "inactive_to=60000,sensing_to=400000"
         *
         * The following keys are supported:
         *
         * <pre>
         * inactive_to                      (long)
         * sensing_to                       (long)
         * motion_inactive_to               (long)
         * idle_after_inactive_to           (long)
         * idle_pending_to                  (long)
         * max_idle_pending_to              (long)
         * idle_pending_factor              (float)
         * idle_to                          (long)
         * max_idle_to                      (long)
         * idle_factor                      (float)
         * min_time_to_alarm                (long)
         * max_temp_app_whitelist_duration  (long)
         * notification_whitelist_duration  (long)
         * </pre>
         *
         * <p>
         * Type: string
         * @hide
         * @see com.android.server.DeviceIdleController.Constants
         */
        public static final String DEVICE_IDLE_CONSTANTS = "device_idle_constants";

        
Battery Saver specific settings
This is encoded as a key=value list, separated by commas. Ex:
"vibration_disabled=true,adjust_brightness_factor=0.5"
The following keys are supported:

vibration_disabled                (boolean)
animation_disabled                (boolean)
soundtrigger_disabled             (boolean)
fullbackup_deferred               (boolean)
keyvaluebackup_deferred           (boolean)
firewall_disabled                 (boolean)
gps_mode                          (int)
adjust_brightness_disabled        (boolean)
adjust_brightness_factor          (float)



See Also:
  • BatterySaverPolicy
@hide
/**
         * Battery Saver specific settings
         * This is encoded as a key=value list, separated by commas. Ex:
         *
         * "vibration_disabled=true,adjust_brightness_factor=0.5"
         *
         * The following keys are supported:
         *
         * <pre>
         * vibration_disabled                (boolean)
         * animation_disabled                (boolean)
         * soundtrigger_disabled             (boolean)
         * fullbackup_deferred               (boolean)
         * keyvaluebackup_deferred           (boolean)
         * firewall_disabled                 (boolean)
         * gps_mode                          (int)
         * adjust_brightness_disabled        (boolean)
         * adjust_brightness_factor          (float)
         * </pre>
         * @hide
         * @see com.android.server.power.BatterySaverPolicy
         */
        public static final String BATTERY_SAVER_CONSTANTS = "battery_saver_constants";

        
Battery Saver device specific settings This is encoded as a key=value list, separated by commas. See BatterySaverPolicy for the details. 
@hide
/**
         * Battery Saver device specific settings
         * This is encoded as a key=value list, separated by commas.
         * See {@link com.android.server.power.BatterySaverPolicy} for the details.
         *
         * @hide
         */
        public static final String BATTERY_SAVER_DEVICE_SPECIFIC_CONSTANTS =
                "battery_saver_device_specific_constants";

        
Battery tip specific settings
This is encoded as a key=value list, separated by commas. Ex:
"battery_tip_enabled=true,summary_enabled=true,high_usage_enabled=true,"
"high_usage_app_count=3,reduced_battery_enabled=false,reduced_battery_percent=50,"
"high_usage_battery_draining=25,high_usage_period_ms=3000"
The following keys are supported:

battery_tip_enabled              (boolean)
summary_enabled                  (boolean)
battery_saver_tip_enabled        (boolean)
high_usage_enabled               (boolean)
high_usage_app_count             (int)
high_usage_period_ms             (long)
high_usage_battery_draining      (int)
app_restriction_enabled          (boolean)
reduced_battery_enabled          (boolean)
reduced_battery_percent          (int)
low_battery_enabled              (boolean)
low_battery_hour                 (int)



@hide
/**
         * Battery tip specific settings
         * This is encoded as a key=value list, separated by commas. Ex:
         *
         * "battery_tip_enabled=true,summary_enabled=true,high_usage_enabled=true,"
         * "high_usage_app_count=3,reduced_battery_enabled=false,reduced_battery_percent=50,"
         * "high_usage_battery_draining=25,high_usage_period_ms=3000"
         *
         * The following keys are supported:
         *
         * <pre>
         * battery_tip_enabled              (boolean)
         * summary_enabled                  (boolean)
         * battery_saver_tip_enabled        (boolean)
         * high_usage_enabled               (boolean)
         * high_usage_app_count             (int)
         * high_usage_period_ms             (long)
         * high_usage_battery_draining      (int)
         * app_restriction_enabled          (boolean)
         * reduced_battery_enabled          (boolean)
         * reduced_battery_percent          (int)
         * low_battery_enabled              (boolean)
         * low_battery_hour                 (int)
         * </pre>
         * @hide
         */
        public static final String BATTERY_TIP_CONSTANTS = "battery_tip_constants";

        
Battery anomaly detection specific settings This is encoded as a key=value list, separated by commas. wakeup_blacklisted_tags is a string, encoded as a set of tags, encoded via Uri.encode(String), separated by colons. Ex: "anomaly_detection_enabled=true,wakelock_threshold=2000,wakeup_alarm_enabled=true," "wakeup_alarm_threshold=10,wakeup_blacklisted_tags=tag1:tag2:with%2Ccomma:with%3Acolon" The following keys are supported: 
anomaly_detection_enabled       (boolean)
wakelock_enabled                (boolean)
wakelock_threshold              (long)
wakeup_alarm_enabled            (boolean)
wakeup_alarm_threshold          (long)
wakeup_blacklisted_tags         (string)
bluetooth_scan_enabled          (boolean)
bluetooth_scan_threshold        (long)



@hide
/**
         * Battery anomaly detection specific settings
         * This is encoded as a key=value list, separated by commas.
         * wakeup_blacklisted_tags is a string, encoded as a set of tags, encoded via
         * {@link Uri#encode(String)}, separated by colons. Ex:
         *
         * "anomaly_detection_enabled=true,wakelock_threshold=2000,wakeup_alarm_enabled=true,"
         * "wakeup_alarm_threshold=10,wakeup_blacklisted_tags=tag1:tag2:with%2Ccomma:with%3Acolon"
         *
         * The following keys are supported:
         *
         * <pre>
         * anomaly_detection_enabled       (boolean)
         * wakelock_enabled                (boolean)
         * wakelock_threshold              (long)
         * wakeup_alarm_enabled            (boolean)
         * wakeup_alarm_threshold          (long)
         * wakeup_blacklisted_tags         (string)
         * bluetooth_scan_enabled          (boolean)
         * bluetooth_scan_threshold        (long)
         * </pre>
         * @hide
         */
        public static final String ANOMALY_DETECTION_CONSTANTS = "anomaly_detection_constants";

        
An integer to show the version of the anomaly config. Ex: 1, which means
current version is 1.

@hide
/**
         * An integer to show the version of the anomaly config. Ex: 1, which means
         * current version is 1.
         * @hide
         */
        public static final String ANOMALY_CONFIG_VERSION = "anomaly_config_version";

        
A base64-encoded string represents anomaly stats config, used for StatsManager. 
@hide
/**
         * A base64-encoded string represents anomaly stats config, used for
         * {@link android.app.StatsManager}.
         * @hide
         */
        public static final String ANOMALY_CONFIG = "anomaly_config";

        
Always on display(AOD) specific settings
This is encoded as a key=value list, separated by commas. Ex:
"prox_screen_off_delay=10000,screen_brightness_array=0:1:2:3:4"
The following keys are supported:

screen_brightness_array         (int[])
dimming_scrim_array             (int[])
prox_screen_off_delay           (long)
prox_cooldown_trigger           (long)
prox_cooldown_period            (long)



@hide
/**
         * Always on display(AOD) specific settings
         * This is encoded as a key=value list, separated by commas. Ex:
         *
         * "prox_screen_off_delay=10000,screen_brightness_array=0:1:2:3:4"
         *
         * The following keys are supported:
         *
         * <pre>
         * screen_brightness_array         (int[])
         * dimming_scrim_array             (int[])
         * prox_screen_off_delay           (long)
         * prox_cooldown_trigger           (long)
         * prox_cooldown_period            (long)
         * </pre>
         * @hide
         */
        public static final String ALWAYS_ON_DISPLAY_CONSTANTS = "always_on_display_constants";

        
System VDSO global setting. This links to the "sys.vdso" system property.
The following values are supported:
false  -> both 32 and 64 bit vdso disabled
32     -> 32 bit vdso enabled
64     -> 64 bit vdso enabled
Any other value defaults to both 32 bit and 64 bit true.

@hide
/**
        * System VDSO global setting. This links to the "sys.vdso" system property.
        * The following values are supported:
        * false  -> both 32 and 64 bit vdso disabled
        * 32     -> 32 bit vdso enabled
        * 64     -> 64 bit vdso enabled
        * Any other value defaults to both 32 bit and 64 bit true.
        * @hide
        */
        public static final String SYS_VDSO = "sys_vdso";

        
UidCpuPower global setting. This links the sys.uidcpupower system property.
The following values are supported:
0 -> /proc/uid_cpupower/* are disabled
1 -> /proc/uid_cpupower/* are enabled
Any other value defaults to enabled.

@hide
/**
        * UidCpuPower global setting. This links the sys.uidcpupower system property.
        * The following values are supported:
        * 0 -> /proc/uid_cpupower/* are disabled
        * 1 -> /proc/uid_cpupower/* are enabled
        * Any other value defaults to enabled.
        * @hide
        */
        public static final String SYS_UIDCPUPOWER = "sys_uidcpupower";

        
traced global setting. This controls weather the deamons: traced and
traced_probes run. This links the sys.traced system property.
The following values are supported:
0 -> traced and traced_probes are disabled
1 -> traced and traced_probes are enabled
Any other value defaults to disabled.

@hide
/**
        * traced global setting. This controls weather the deamons: traced and
        * traced_probes run. This links the sys.traced system property.
        * The following values are supported:
        * 0 -> traced and traced_probes are disabled
        * 1 -> traced and traced_probes are enabled
        * Any other value defaults to disabled.
        * @hide
        */
        public static final String SYS_TRACED = "sys_traced";

        
An integer to reduce the FPS by this factor. Only for experiments. Need to reboot the
device for this setting to take full effect.

@hide
/**
         * An integer to reduce the FPS by this factor. Only for experiments. Need to reboot the
         * device for this setting to take full effect.
         *
         * @hide
         */
        public static final String FPS_DEVISOR = "fps_divisor";

        
Flag to enable or disable display panel low power mode (lpm)
false -> Display panel power saving mode is disabled.
true  -> Display panel power saving mode is enabled.

@hide
/**
         * Flag to enable or disable display panel low power mode (lpm)
         * false -> Display panel power saving mode is disabled.
         * true  -> Display panel power saving mode is enabled.
         *
         * @hide
         */
        public static final String DISPLAY_PANEL_LPM = "display_panel_lpm";

        
App standby (app idle) specific settings.
This is encoded as a key=value list, separated by commas. Ex:


"idle_duration=5000,parole_interval=4500,screen_thresholds=0/0/60000/120000"


All durations are in millis.
Array values are separated by forward slashes
The following keys are supported:

parole_interval                  (long)
parole_window                    (long)
parole_duration                  (long)
screen_thresholds                (long[4])
elapsed_thresholds               (long[4])
strong_usage_duration            (long)
notification_seen_duration       (long)
system_update_usage_duration     (long)
prediction_timeout               (long)
sync_adapter_duration            (long)
exempted_sync_duration           (long)
system_interaction_duration      (long)
stable_charging_threshold        (long)
idle_duration        (long) // This is deprecated and used to circumvent b/26355386.
idle_duration2       (long) // deprecated
wallclock_threshold  (long) // deprecated




Type: string

See Also:
  • SettingsObserver
@hide
/**
         * App standby (app idle) specific settings.
         * This is encoded as a key=value list, separated by commas. Ex:
         * <p>
         * "idle_duration=5000,parole_interval=4500,screen_thresholds=0/0/60000/120000"
         * <p>
         * All durations are in millis.
         * Array values are separated by forward slashes
         * The following keys are supported:
         *
         * <pre>
         * parole_interval                  (long)
         * parole_window                    (long)
         * parole_duration                  (long)
         * screen_thresholds                (long[4])
         * elapsed_thresholds               (long[4])
         * strong_usage_duration            (long)
         * notification_seen_duration       (long)
         * system_update_usage_duration     (long)
         * prediction_timeout               (long)
         * sync_adapter_duration            (long)
         * exempted_sync_duration           (long)
         * system_interaction_duration      (long)
         * stable_charging_threshold        (long)
         *
         * idle_duration        (long) // This is deprecated and used to circumvent b/26355386.
         * idle_duration2       (long) // deprecated
         * wallclock_threshold  (long) // deprecated
         * </pre>
         *
         * <p>
         * Type: string
         * @hide
         * @see com.android.server.usage.UsageStatsService.SettingsObserver
         */
        public static final String APP_IDLE_CONSTANTS = "app_idle_constants";

        
Power manager specific settings.
This is encoded as a key=value list, separated by commas. Ex:
"no_cached_wake_locks=1"
The following keys are supported:

no_cached_wake_locks                 (boolean)




Type: string

See Also:
  • PowerManagerConstants
@hide
/**
         * Power manager specific settings.
         * This is encoded as a key=value list, separated by commas. Ex:
         *
         * "no_cached_wake_locks=1"
         *
         * The following keys are supported:
         *
         * <pre>
         * no_cached_wake_locks                 (boolean)
         * </pre>
         *
         * <p>
         * Type: string
         * @hide
         * @see com.android.server.power.PowerManagerConstants
         */
        public static final String POWER_MANAGER_CONSTANTS = "power_manager_constants";

        
Alarm manager specific settings.
This is encoded as a key=value list, separated by commas. Ex:
"min_futurity=5000,allow_while_idle_short_time=4500"
The following keys are supported:

min_futurity                         (long)
min_interval                         (long)
allow_while_idle_short_time          (long)
allow_while_idle_long_time           (long)
allow_while_idle_whitelist_duration  (long)




Type: string

See Also:
  • Constants
@hide
/**
         * Alarm manager specific settings.
         * This is encoded as a key=value list, separated by commas. Ex:
         *
         * "min_futurity=5000,allow_while_idle_short_time=4500"
         *
         * The following keys are supported:
         *
         * <pre>
         * min_futurity                         (long)
         * min_interval                         (long)
         * allow_while_idle_short_time          (long)
         * allow_while_idle_long_time           (long)
         * allow_while_idle_whitelist_duration  (long)
         * </pre>
         *
         * <p>
         * Type: string
         * @hide
         * @see com.android.server.AlarmManagerService.Constants
         */
        public static final String ALARM_MANAGER_CONSTANTS = "alarm_manager_constants";

        
Job scheduler specific settings.
This is encoded as a key=value list, separated by commas. Ex:
"min_ready_jobs_count=2,moderate_use_factor=.5"
The following keys are supported:

min_idle_count                       (int)
min_charging_count                   (int)
min_connectivity_count               (int)
min_content_count                    (int)
min_ready_jobs_count                 (int)
heavy_use_factor                     (float)
moderate_use_factor                  (float)
fg_job_count                         (int)
bg_normal_job_count                  (int)
bg_moderate_job_count                (int)
bg_low_job_count                     (int)
bg_critical_job_count                (int)




Type: string

See Also:
  • Constants
@hide
/**
         * Job scheduler specific settings.
         * This is encoded as a key=value list, separated by commas. Ex:
         *
         * "min_ready_jobs_count=2,moderate_use_factor=.5"
         *
         * The following keys are supported:
         *
         * <pre>
         * min_idle_count                       (int)
         * min_charging_count                   (int)
         * min_connectivity_count               (int)
         * min_content_count                    (int)
         * min_ready_jobs_count                 (int)
         * heavy_use_factor                     (float)
         * moderate_use_factor                  (float)
         * fg_job_count                         (int)
         * bg_normal_job_count                  (int)
         * bg_moderate_job_count                (int)
         * bg_low_job_count                     (int)
         * bg_critical_job_count                (int)
         * </pre>
         *
         * <p>
         * Type: string
         * @hide
         * @see com.android.server.job.JobSchedulerService.Constants
         */
        public static final String JOB_SCHEDULER_CONSTANTS = "job_scheduler_constants";

        
ShortcutManager specific settings.
This is encoded as a key=value list, separated by commas. Ex:
"reset_interval_sec=86400,max_updates_per_interval=1"
The following keys are supported:

reset_interval_sec              (long)
max_updates_per_interval        (int)
max_icon_dimension_dp           (int, DP)
max_icon_dimension_dp_lowram    (int, DP)
max_shortcuts                   (int)
icon_quality                    (int, 0-100)
icon_format                     (String)




Type: string

See Also:
  • ConfigConstants
@hide
/**
         * ShortcutManager specific settings.
         * This is encoded as a key=value list, separated by commas. Ex:
         *
         * "reset_interval_sec=86400,max_updates_per_interval=1"
         *
         * The following keys are supported:
         *
         * <pre>
         * reset_interval_sec              (long)
         * max_updates_per_interval        (int)
         * max_icon_dimension_dp           (int, DP)
         * max_icon_dimension_dp_lowram    (int, DP)
         * max_shortcuts                   (int)
         * icon_quality                    (int, 0-100)
         * icon_format                     (String)
         * </pre>
         *
         * <p>
         * Type: string
         * @hide
         * @see com.android.server.pm.ShortcutService.ConfigConstants
         */
        public static final String SHORTCUT_MANAGER_CONSTANTS = "shortcut_manager_constants";

        
DevicePolicyManager specific settings.
This is encoded as a key=value list, separated by commas. Ex:

das_died_service_reconnect_backoff_sec       (long)
das_died_service_reconnect_backoff_increase  (float)
das_died_service_reconnect_max_backoff_sec   (long)




Type: string

@hide
see also com.android.server.devicepolicy.DevicePolicyConstants
/**
         * DevicePolicyManager specific settings.
         * This is encoded as a key=value list, separated by commas. Ex:
         *
         * <pre>
         * das_died_service_reconnect_backoff_sec       (long)
         * das_died_service_reconnect_backoff_increase  (float)
         * das_died_service_reconnect_max_backoff_sec   (long)
         * </pre>
         *
         * <p>
         * Type: string
         * @hide
         * see also com.android.server.devicepolicy.DevicePolicyConstants
         */
        public static final String DEVICE_POLICY_CONSTANTS = "device_policy_constants";

        
TextClassifier specific settings.
This is encoded as a key=value list, separated by commas. String[] types like
entity_list_default use ":" as delimiter for values. Ex:

smart_linkify_enabled                    (boolean)
system_textclassifier_enabled            (boolean)
model_dark_launch_enabled                (boolean)
smart_selection_enabled                  (boolean)
smart_text_share_enabled                 (boolean)
smart_linkify_enabled                    (boolean)
smart_select_animation_enabled           (boolean)
suggest_selection_max_range_length       (int)
classify_text_max_range_length           (int)
generate_links_max_text_length           (int)
generate_links_log_sample_rate           (int)
entity_list_default                      (String[])
entity_list_not_editable                 (String[])
entity_list_editable                     (String[])




Type: string

@hide
see also android.view.textclassifier.TextClassificationConstants
/**
         * TextClassifier specific settings.
         * This is encoded as a key=value list, separated by commas. String[] types like
         * entity_list_default use ":" as delimiter for values. Ex:
         *
         * <pre>
         * smart_linkify_enabled                    (boolean)
         * system_textclassifier_enabled            (boolean)
         * model_dark_launch_enabled                (boolean)
         * smart_selection_enabled                  (boolean)
         * smart_text_share_enabled                 (boolean)
         * smart_linkify_enabled                    (boolean)
         * smart_select_animation_enabled           (boolean)
         * suggest_selection_max_range_length       (int)
         * classify_text_max_range_length           (int)
         * generate_links_max_text_length           (int)
         * generate_links_log_sample_rate           (int)
         * entity_list_default                      (String[])
         * entity_list_not_editable                 (String[])
         * entity_list_editable                     (String[])
         * </pre>
         *
         * <p>
         * Type: string
         * @hide
         * see also android.view.textclassifier.TextClassificationConstants
         */
        public static final String TEXT_CLASSIFIER_CONSTANTS = "text_classifier_constants";

        
BatteryStats specific settings.
This is encoded as a key=value list, separated by commas. Ex: "foo=1,bar=true"
The following keys are supported:

track_cpu_times_by_proc_state (boolean)
track_cpu_active_cluster_time (boolean)
read_binary_cpu_time          (boolean)
proc_state_cpu_times_read_delay_ms (long)
external_stats_collection_rate_limit_ms (long)
battery_level_collection_delay_ms (long)




Type: string

@hide
see also com.android.internal.os.BatteryStatsImpl.Constants
/**
         * BatteryStats specific settings.
         * This is encoded as a key=value list, separated by commas. Ex: "foo=1,bar=true"
         *
         * The following keys are supported:
         * <pre>
         * track_cpu_times_by_proc_state (boolean)
         * track_cpu_active_cluster_time (boolean)
         * read_binary_cpu_time          (boolean)
         * proc_state_cpu_times_read_delay_ms (long)
         * external_stats_collection_rate_limit_ms (long)
         * battery_level_collection_delay_ms (long)
         * </pre>
         *
         * <p>
         * Type: string
         * @hide
         * see also com.android.internal.os.BatteryStatsImpl.Constants
         */
        public static final String BATTERY_STATS_CONSTANTS = "battery_stats_constants";

        
SyncManager specific settings.


Type: string

See Also:
  • SyncManagerConstants
@hide
/**
         * SyncManager specific settings.
         *
         * <p>
         * Type: string
         * @hide
         * @see com.android.server.content.SyncManagerConstants
         */
        public static final String SYNC_MANAGER_CONSTANTS = "sync_manager_constants";

        
Whether or not App Standby feature is enabled by system. This controls throttling of apps based on usage patterns and predictions. Platform will turn on this feature if both this flag and ADAPTIVE_BATTERY_MANAGEMENT_ENABLED is on. Type: int (0 for false, 1 for true) Default: 1 
See Also:
@hide
/**
         * Whether or not App Standby feature is enabled by system. This controls throttling of apps
         * based on usage patterns and predictions. Platform will turn on this feature if both this
         * flag and {@link #ADAPTIVE_BATTERY_MANAGEMENT_ENABLED} is on.
         * Type: int (0 for false, 1 for true)
         * Default: 1
         * @hide
         * @see #ADAPTIVE_BATTERY_MANAGEMENT_ENABLED
         */
        public static final String APP_STANDBY_ENABLED = "app_standby_enabled";

        
Whether or not adaptive battery feature is enabled by user. Platform will turn on this feature if both this flag and APP_STANDBY_ENABLED is on. Type: int (0 for false, 1 for true) Default: 1 
See Also:
@hide
/**
         * Whether or not adaptive battery feature is enabled by user. Platform will turn on this
         * feature if both this flag and {@link #APP_STANDBY_ENABLED} is on.
         * Type: int (0 for false, 1 for true)
         * Default: 1
         * @hide
         * @see #APP_STANDBY_ENABLED
         */
        public static final String ADAPTIVE_BATTERY_MANAGEMENT_ENABLED =
                "adaptive_battery_management_enabled";

        
Whether or not app auto restriction is enabled. When it is enabled, settings app will
auto restrict the app if it has bad behavior(e.g. hold wakelock for long time).
Type: boolean (0 for false, 1 for true)
Default: 1

@hide
/**
         * Whether or not app auto restriction is enabled. When it is enabled, settings app will
         * auto restrict the app if it has bad behavior(e.g. hold wakelock for long time).
         *
         * Type: boolean (0 for false, 1 for true)
         * Default: 1
         *
         * @hide
         */
        public static final String APP_AUTO_RESTRICTION_ENABLED =
                "app_auto_restriction_enabled";

        private static final Validator APP_AUTO_RESTRICTION_ENABLED_VALIDATOR =
                BOOLEAN_VALIDATOR;

        
Feature flag to enable or disable the Forced App Standby feature.
Type: int (0 for false, 1 for true)
Default: 1

@hide
/**
         * Feature flag to enable or disable the Forced App Standby feature.
         * Type: int (0 for false, 1 for true)
         * Default: 1
         * @hide
         */
        public static final String FORCED_APP_STANDBY_ENABLED = "forced_app_standby_enabled";

        
Whether or not to enable Forced App Standby on small battery devices.
Type: int (0 for false, 1 for true)
Default: 0

@hide
/**
         * Whether or not to enable Forced App Standby on small battery devices.
         * Type: int (0 for false, 1 for true)
         * Default: 0
         * @hide
         */
        public static final String FORCED_APP_STANDBY_FOR_SMALL_BATTERY_ENABLED
                = "forced_app_standby_for_small_battery_enabled";

        
Whether or not to enable the User Absent, Radios Off feature on small battery devices.
Type: int (0 for false, 1 for true)
Default: 0

@hide
/**
         * Whether or not to enable the User Absent, Radios Off feature on small battery devices.
         * Type: int (0 for false, 1 for true)
         * Default: 0
         * @hide
         */
        public static final String USER_ABSENT_RADIOS_OFF_FOR_SMALL_BATTERY_ENABLED
                = "user_absent_radios_off_for_small_battery_enabled";

        
Whether or not to turn on Wifi when proxy is disconnected.
Type: int (0 for false, 1 for true)
Default: 1

@hide
/**
         * Whether or not to turn on Wifi when proxy is disconnected.
         * Type: int (0 for false, 1 for true)
         * Default: 1
         * @hide
         */
        public static final String WIFI_ON_WHEN_PROXY_DISCONNECTED
                = "wifi_on_when_proxy_disconnected";

        
Time Only Mode specific settings.
This is encoded as a key=value list, separated by commas. Ex: "foo=1,bar=true"
The following keys are supported:

enabled                  (boolean)
disable_tilt_to_wake     (boolean)
disable_touch_to_wake    (boolean)


Type: string

@hide
/**
         * Time Only Mode specific settings.
         * This is encoded as a key=value list, separated by commas. Ex: "foo=1,bar=true"
         *
         * The following keys are supported:
         *
         * <pre>
         * enabled                  (boolean)
         * disable_tilt_to_wake     (boolean)
         * disable_touch_to_wake    (boolean)
         * </pre>
         * Type: string
         * @hide
         */
        public static final String TIME_ONLY_MODE_CONSTANTS
                = "time_only_mode_constants";

        
Whether of not to send keycode sleep for ungaze when Home is the foreground activity on
watch type devices.
Type: int (0 for false, 1 for true)
Default: 0

@hide
/**
         * Whether of not to send keycode sleep for ungaze when Home is the foreground activity on
         * watch type devices.
         * Type: int (0 for false, 1 for true)
         * Default: 0
         * @hide
         */
        public static final String UNGAZE_SLEEP_ENABLED = "ungaze_sleep_enabled";

        
Whether or not Network Watchlist feature is enabled.
Type: int (0 for false, 1 for true)
Default: 0

@hide
/**
         * Whether or not Network Watchlist feature is enabled.
         * Type: int (0 for false, 1 for true)
         * Default: 0
         * @hide
         */
        public static final String NETWORK_WATCHLIST_ENABLED = "network_watchlist_enabled";

        
Flag to keep background restricted profiles running after exiting. If disabled, the restricted profile can be put into stopped state as soon as the user leaves it. Type: int (0 for false, 1 for true) Overridden by the system based on device information. If null, the value specified by config_keepRestrictedProfilesInBackground is used. 
@hide
/**
         * Flag to keep background restricted profiles running after exiting. If disabled,
         * the restricted profile can be put into stopped state as soon as the user leaves it.
         * Type: int (0 for false, 1 for true)
         *
         * Overridden by the system based on device information. If null, the value specified
         * by {@code config_keepRestrictedProfilesInBackground} is used.
         *
         * @hide
         */
        public static final String KEEP_PROFILE_IN_BACKGROUND = "keep_profile_in_background";

        
Get the key that retrieves a bluetooth headset's priority.

@hide
/**
         * Get the key that retrieves a bluetooth headset's priority.
         * @hide
         */
        public static final String getBluetoothHeadsetPriorityKey(String address) {
            return BLUETOOTH_HEADSET_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
        }

        
Get the key that retrieves a bluetooth a2dp sink's priority.

@hide
/**
         * Get the key that retrieves a bluetooth a2dp sink's priority.
         * @hide
         */
        public static final String getBluetoothA2dpSinkPriorityKey(String address) {
            return BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
        }

        
Get the key that retrieves a bluetooth a2dp src's priority.

@hide
/**
         * Get the key that retrieves a bluetooth a2dp src's priority.
         * @hide
         */
        public static final String getBluetoothA2dpSrcPriorityKey(String address) {
            return BLUETOOTH_A2DP_SRC_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
        }

        
Get the key that retrieves a bluetooth a2dp device's ability to support optional codecs.

@hide
/**
         * Get the key that retrieves a bluetooth a2dp device's ability to support optional codecs.
         * @hide
         */
        public static final String getBluetoothA2dpSupportsOptionalCodecsKey(String address) {
            return BLUETOOTH_A2DP_SUPPORTS_OPTIONAL_CODECS_PREFIX +
                    address.toUpperCase(Locale.ROOT);
        }

        
Get the key that retrieves whether a bluetooth a2dp device should have optional codecs
enabled.

@hide
/**
         * Get the key that retrieves whether a bluetooth a2dp device should have optional codecs
         * enabled.
         * @hide
         */
        public static final String getBluetoothA2dpOptionalCodecsEnabledKey(String address) {
            return BLUETOOTH_A2DP_OPTIONAL_CODECS_ENABLED_PREFIX +
                    address.toUpperCase(Locale.ROOT);
        }

        
Get the key that retrieves a bluetooth Input Device's priority.

@hide
/**
         * Get the key that retrieves a bluetooth Input Device's priority.
         * @hide
         */
        public static final String getBluetoothHidHostPriorityKey(String address) {
            return BLUETOOTH_INPUT_DEVICE_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
        }

        
Get the key that retrieves a bluetooth pan client priority.

@hide
/**
         * Get the key that retrieves a bluetooth pan client priority.
         * @hide
         */
        public static final String getBluetoothPanPriorityKey(String address) {
            return BLUETOOTH_PAN_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
        }

        
Get the key that retrieves a bluetooth hearing aid priority.

@hide
/**
         * Get the key that retrieves a bluetooth hearing aid priority.
         * @hide
         */
        public static final String getBluetoothHearingAidPriorityKey(String address) {
            return BLUETOOTH_HEARING_AID_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
        }

        
Get the key that retrieves a bluetooth map priority.

@hide
/**
         * Get the key that retrieves a bluetooth map priority.
         * @hide
         */
        public static final String getBluetoothMapPriorityKey(String address) {
            return BLUETOOTH_MAP_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
        }

        
Get the key that retrieves a bluetooth map client priority.

@hide
/**
         * Get the key that retrieves a bluetooth map client priority.
         * @hide
         */
        public static final String getBluetoothMapClientPriorityKey(String address) {
            return BLUETOOTH_MAP_CLIENT_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
        }

        
Get the key that retrieves a bluetooth pbap client priority.

@hide
/**
         * Get the key that retrieves a bluetooth pbap client priority.
         * @hide
         */
        public static final String getBluetoothPbapClientPriorityKey(String address) {
            return BLUETOOTH_PBAP_CLIENT_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
        }

        
Get the key that retrieves a bluetooth sap priority.

@hide
/**
         * Get the key that retrieves a bluetooth sap priority.
         * @hide
         */
        public static final String getBluetoothSapPriorityKey(String address) {
            return BLUETOOTH_SAP_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
        }

        
Scaling factor for normal window animations. Setting to 0 will
disable window animations.

/**
         * Scaling factor for normal window animations. Setting to 0 will
         * disable window animations.
         */
        public static final String WINDOW_ANIMATION_SCALE = "window_animation_scale";

        
Scaling factor for activity transition animations. Setting to 0 will
disable window animations.

/**
         * Scaling factor for activity transition animations. Setting to 0 will
         * disable window animations.
         */
        public static final String TRANSITION_ANIMATION_SCALE = "transition_animation_scale";

        
Scaling factor for Animator-based animations. This affects both the
start delay and duration of all such animations. Setting to 0 will
cause animations to end immediately. The default value is 1.

/**
         * Scaling factor for Animator-based animations. This affects both the
         * start delay and duration of all such animations. Setting to 0 will
         * cause animations to end immediately. The default value is 1.
         */
        public static final String ANIMATOR_DURATION_SCALE = "animator_duration_scale";

        
Scaling factor for normal window animations. Setting to 0 will
disable window animations.

@hide
/**
         * Scaling factor for normal window animations. Setting to 0 will
         * disable window animations.
         *
         * @hide
         */
        public static final String FANCY_IME_ANIMATIONS = "fancy_ime_animations";

        
If 0, the compatibility mode is off for all applications.
If 1, older applications run under compatibility mode.
TODO: remove this settings before code freeze (bug/1907571)

@hide
/**
         * If 0, the compatibility mode is off for all applications.
         * If 1, older applications run under compatibility mode.
         * TODO: remove this settings before code freeze (bug/1907571)
         * @hide
         */
        public static final String COMPATIBILITY_MODE = "compatibility_mode";

        
CDMA only settings
Emergency Tone  0 = Off
                1 = Alert
                2 = Vibrate

@hide
/**
         * CDMA only settings
         * Emergency Tone  0 = Off
         *                 1 = Alert
         *                 2 = Vibrate
         * @hide
         */
        public static final String EMERGENCY_TONE = "emergency_tone";

        private static final Validator EMERGENCY_TONE_VALIDATOR =
                new SettingsValidators.DiscreteValueValidator(new String[] {"0", "1", "2"});

        
CDMA only settings
Whether the auto retry is enabled. The value is
boolean (1 or 0).

@hide
/**
         * CDMA only settings
         * Whether the auto retry is enabled. The value is
         * boolean (1 or 0).
         * @hide
         */
        public static final String CALL_AUTO_RETRY = "call_auto_retry";

        private static final Validator CALL_AUTO_RETRY_VALIDATOR = BOOLEAN_VALIDATOR;

        
A setting that can be read whether the emergency affordance is currently needed.
The value is a boolean (1 or 0).

@hide
/**
         * A setting that can be read whether the emergency affordance is currently needed.
         * The value is a boolean (1 or 0).
         * @hide
         */
        public static final String EMERGENCY_AFFORDANCE_NEEDED = "emergency_affordance_needed";

        
See RIL_PreferredNetworkType in ril.h

@hide
/**
         * See RIL_PreferredNetworkType in ril.h
         * @hide
         */
        public static final String PREFERRED_NETWORK_MODE =
                "preferred_network_mode";

        
Name of an application package to be debugged.

/**
         * Name of an application package to be debugged.
         */
        public static final String DEBUG_APP = "debug_app";

        
If 1, when launching DEBUG_APP it will wait for the debugger before
starting user code.  If 0, it will run normally.

/**
         * If 1, when launching DEBUG_APP it will wait for the debugger before
         * starting user code.  If 0, it will run normally.
         */
        public static final String WAIT_FOR_DEBUGGER = "wait_for_debugger";

        
Allow GPU debug layers?
0 = no
1 = yes

@hide
/**
         * Allow GPU debug layers?
         * 0 = no
         * 1 = yes
         * @hide
         */
        public static final String ENABLE_GPU_DEBUG_LAYERS = "enable_gpu_debug_layers";

        
App allowed to load GPU debug layers

@hide
/**
         * App allowed to load GPU debug layers
         * @hide
         */
        public static final String GPU_DEBUG_APP = "gpu_debug_app";

        
Ordered GPU debug layer list
i.e. ::...:

@hide
/**
         * Ordered GPU debug layer list
         * i.e. <layer1>:<layer2>:...:<layerN>
         * @hide
         */
        public static final String GPU_DEBUG_LAYERS = "gpu_debug_layers";

        
Control whether the process CPU usage meter should be shown.

Deprecated:This functionality is no longer available as of VERSION_CODES.N_MR1.
/**
         * Control whether the process CPU usage meter should be shown.
         *
         * @deprecated This functionality is no longer available as of
         * {@link android.os.Build.VERSION_CODES#N_MR1}.
         */
        @Deprecated
        public static final String SHOW_PROCESSES = "show_processes";

        
If 1 low power mode (aka battery saver) is enabled.

@hide
/**
         * If 1 low power mode (aka battery saver) is enabled.
         * @hide
         */
        @TestApi
        public static final String LOW_POWER_MODE = "low_power";

        
If 1, battery saver (LOW_POWER_MODE) will be re-activated after the device is unplugged from a charger or rebooted. 
@hide
/**
         * If 1, battery saver ({@link #LOW_POWER_MODE}) will be re-activated after the device
         * is unplugged from a charger or rebooted.
         * @hide
         */
        @TestApi
        public static final String LOW_POWER_MODE_STICKY = "low_power_sticky";

        
Battery level [1-100] at which low power mode automatically turns on.
If 0, it will not automatically turn on.

@hide
/**
         * Battery level [1-100] at which low power mode automatically turns on.
         * If 0, it will not automatically turn on.
         * @hide
         */
        public static final String LOW_POWER_MODE_TRIGGER_LEVEL = "low_power_trigger_level";

        private static final Validator LOW_POWER_MODE_TRIGGER_LEVEL_VALIDATOR =
                new SettingsValidators.InclusiveIntegerRangeValidator(0, 100);


        
The max value for LOW_POWER_MODE_TRIGGER_LEVEL. If this setting is not set or the value is 0, the default max will be used. 
@hide
/**
         * The max value for {@link #LOW_POWER_MODE_TRIGGER_LEVEL}. If this setting is not set
         * or the value is 0, the default max will be used.
         *
         * @hide
         */
        public static final String LOW_POWER_MODE_TRIGGER_LEVEL_MAX = "low_power_trigger_level_max";

        
See com.android.settingslib.fuelgauge.BatterySaverUtils.

@hide
/**
         * See com.android.settingslib.fuelgauge.BatterySaverUtils.
         * @hide
         */
        public static final String LOW_POWER_MODE_SUGGESTION_PARAMS =
                "low_power_mode_suggestion_params";

        
If not 0, the activity manager will aggressively finish activities and
processes as soon as they are no longer needed.  If 0, the normal
extended lifetime is used.

/**
         * If not 0, the activity manager will aggressively finish activities and
         * processes as soon as they are no longer needed.  If 0, the normal
         * extended lifetime is used.
         */
        public static final String ALWAYS_FINISH_ACTIVITIES = "always_finish_activities";

        
If nonzero, all system error dialogs will be hidden.  For example, the
crash and ANR dialogs will not be shown, and the system will just proceed
as if they had been accepted by the user.

@hide
/**
         * If nonzero, all system error dialogs will be hidden.  For example, the
         * crash and ANR dialogs will not be shown, and the system will just proceed
         * as if they had been accepted by the user.
         * @hide
         */
        public static final String HIDE_ERROR_DIALOGS = "hide_error_dialogs";

        
Use Dock audio output for media:
     0 = disabled
     1 = enabled

@hide
/**
         * Use Dock audio output for media:
         *      0 = disabled
         *      1 = enabled
         * @hide
         */
        public static final String DOCK_AUDIO_MEDIA_ENABLED = "dock_audio_media_enabled";

        private static final Validator DOCK_AUDIO_MEDIA_ENABLED_VALIDATOR = BOOLEAN_VALIDATOR;

        
The surround sound formats AC3, DTS or IEC61937 are
available for use if they are detected.
This is the default mode.
Note that AUTO is equivalent to ALWAYS for Android TVs and other
devices that have an S/PDIF output. This is because S/PDIF
is unidirectional and the TV cannot know if a decoder is
connected. So it assumes they are always available.

@hide
/**
         * The surround sound formats AC3, DTS or IEC61937 are
         * available for use if they are detected.
         * This is the default mode.
         *
         * Note that AUTO is equivalent to ALWAYS for Android TVs and other
         * devices that have an S/PDIF output. This is because S/PDIF
         * is unidirectional and the TV cannot know if a decoder is
         * connected. So it assumes they are always available.
         * @hide
         */
         public static final int ENCODED_SURROUND_OUTPUT_AUTO = 0;

        
AC3, DTS or IEC61937 are NEVER available, even if they
are detected by the hardware. Those formats will not be
reported.
An example use case would be an AVR reports that it is capable of
surround sound decoding but is broken. If NEVER is chosen
then apps must use PCM output instead of encoded output.

@hide
/**
         * AC3, DTS or IEC61937 are NEVER available, even if they
         * are detected by the hardware. Those formats will not be
         * reported.
         *
         * An example use case would be an AVR reports that it is capable of
         * surround sound decoding but is broken. If NEVER is chosen
         * then apps must use PCM output instead of encoded output.
         * @hide
         */
         public static final int ENCODED_SURROUND_OUTPUT_NEVER = 1;

        
AC3, DTS or IEC61937 are ALWAYS available, even if they
are not detected by the hardware. Those formats will be
reported as part of the HDMI output capability. Applications
are then free to use either PCM or encoded output.
An example use case would be a when TV was connected over
TOS-link to an AVR. But the TV could not see it because TOS-link
is unidirectional.

@hide
/**
         * AC3, DTS or IEC61937 are ALWAYS available, even if they
         * are not detected by the hardware. Those formats will be
         * reported as part of the HDMI output capability. Applications
         * are then free to use either PCM or encoded output.
         *
         * An example use case would be a when TV was connected over
         * TOS-link to an AVR. But the TV could not see it because TOS-link
         * is unidirectional.
         * @hide
         */
         public static final int ENCODED_SURROUND_OUTPUT_ALWAYS = 2;

        
Surround sound formats are available according to the choice
of user, even if they are not detected by the hardware. Those
formats will be reported as part of the HDMI output capability.
Applications are then free to use either PCM or encoded output.
An example use case would be an AVR that doesn't report a surround
format while the user knows the AVR does support it.

@hide
/**
         * Surround sound formats are available according to the choice
         * of user, even if they are not detected by the hardware. Those
         * formats will be reported as part of the HDMI output capability.
         * Applications are then free to use either PCM or encoded output.
         *
         * An example use case would be an AVR that doesn't report a surround
         * format while the user knows the AVR does support it.
         * @hide
         */
        public static final int ENCODED_SURROUND_OUTPUT_MANUAL = 3;

        
Set to ENCODED_SURROUND_OUTPUT_AUTO,
ENCODED_SURROUND_OUTPUT_NEVER,
ENCODED_SURROUND_OUTPUT_ALWAYS or
ENCODED_SURROUND_OUTPUT_MANUAL

@hide
/**
         * Set to ENCODED_SURROUND_OUTPUT_AUTO,
         * ENCODED_SURROUND_OUTPUT_NEVER,
         * ENCODED_SURROUND_OUTPUT_ALWAYS or
         * ENCODED_SURROUND_OUTPUT_MANUAL
         * @hide
         */
        public static final String ENCODED_SURROUND_OUTPUT = "encoded_surround_output";

        private static final Validator ENCODED_SURROUND_OUTPUT_VALIDATOR =
                new SettingsValidators.DiscreteValueValidator(new String[] {"0", "1", "2", "3"});

        
Surround sounds formats that are enabled when ENCODED_SURROUND_OUTPUT is set to
ENCODED_SURROUND_OUTPUT_MANUAL. Encoded as comma separated list. Allowed values
are the format constants defined in AudioFormat.java. Ex:
"5,6"

@hide
/**
         * Surround sounds formats that are enabled when ENCODED_SURROUND_OUTPUT is set to
         * ENCODED_SURROUND_OUTPUT_MANUAL. Encoded as comma separated list. Allowed values
         * are the format constants defined in AudioFormat.java. Ex:
         *
         * "5,6"
         *
         * @hide
         */
        public static final String ENCODED_SURROUND_OUTPUT_ENABLED_FORMATS =
                "encoded_surround_output_enabled_formats";

        private static final Validator ENCODED_SURROUND_OUTPUT_ENABLED_FORMATS_VALIDATOR =
                new Validator() {
            @Override
            public boolean validate(@Nullable String value) {
                try {
                    String[] surroundFormats = TextUtils.split(value, ",");
                    for (String format : surroundFormats) {
                        int audioFormat = Integer.valueOf(format);
                        boolean isSurroundFormat = false;
                        for (int sf : AudioFormat.SURROUND_SOUND_ENCODING) {
                            if (sf == audioFormat) {
                                isSurroundFormat = true;
                                break;
                            }
                        }
                        if (!isSurroundFormat) {
                            return false;
                        }
                    }
                    return true;
                } catch (NumberFormatException e) {
                    return false;
                }
            }
        };

        
Persisted safe headphone volume management state by AudioService

@hide
/**
         * Persisted safe headphone volume management state by AudioService
         * @hide
         */
        public static final String AUDIO_SAFE_VOLUME_STATE = "audio_safe_volume_state";

        
URL for tzinfo (time zone) updates

@hide
/**
         * URL for tzinfo (time zone) updates
         * @hide
         */
        public static final String TZINFO_UPDATE_CONTENT_URL = "tzinfo_content_url";

        
URL for tzinfo (time zone) update metadata

@hide
/**
         * URL for tzinfo (time zone) update metadata
         * @hide
         */
        public static final String TZINFO_UPDATE_METADATA_URL = "tzinfo_metadata_url";

        
URL for selinux (mandatory access control) updates

@hide
/**
         * URL for selinux (mandatory access control) updates
         * @hide
         */
        public static final String SELINUX_UPDATE_CONTENT_URL = "selinux_content_url";

        
URL for selinux (mandatory access control) update metadata

@hide
/**
         * URL for selinux (mandatory access control) update metadata
         * @hide
         */
        public static final String SELINUX_UPDATE_METADATA_URL = "selinux_metadata_url";

        
URL for sms short code updates

@hide
/**
         * URL for sms short code updates
         * @hide
         */
        public static final String SMS_SHORT_CODES_UPDATE_CONTENT_URL =
                "sms_short_codes_content_url";

        
URL for sms short code update metadata

@hide
/**
         * URL for sms short code update metadata
         * @hide
         */
        public static final String SMS_SHORT_CODES_UPDATE_METADATA_URL =
                "sms_short_codes_metadata_url";

        
URL for apn_db updates

@hide
/**
         * URL for apn_db updates
         * @hide
         */
        public static final String APN_DB_UPDATE_CONTENT_URL = "apn_db_content_url";

        
URL for apn_db update metadata

@hide
/**
         * URL for apn_db update metadata
         * @hide
         */
        public static final String APN_DB_UPDATE_METADATA_URL = "apn_db_metadata_url";

        
URL for cert pinlist updates

@hide
/**
         * URL for cert pinlist updates
         * @hide
         */
        public static final String CERT_PIN_UPDATE_CONTENT_URL = "cert_pin_content_url";

        
URL for cert pinlist updates

@hide
/**
         * URL for cert pinlist updates
         * @hide
         */
        public static final String CERT_PIN_UPDATE_METADATA_URL = "cert_pin_metadata_url";

        
URL for intent firewall updates

@hide
/**
         * URL for intent firewall updates
         * @hide
         */
        public static final String INTENT_FIREWALL_UPDATE_CONTENT_URL =
                "intent_firewall_content_url";

        
URL for intent firewall update metadata

@hide
/**
         * URL for intent firewall update metadata
         * @hide
         */
        public static final String INTENT_FIREWALL_UPDATE_METADATA_URL =
                "intent_firewall_metadata_url";

        
URL for lang id model updates

@hide
/**
         * URL for lang id model updates
         * @hide
         */
        public static final String LANG_ID_UPDATE_CONTENT_URL = "lang_id_content_url";

        
URL for lang id model update metadata

@hide
/**
         * URL for lang id model update metadata
         * @hide
         */
        public static final String LANG_ID_UPDATE_METADATA_URL = "lang_id_metadata_url";

        
URL for smart selection model updates

@hide
/**
         * URL for smart selection model updates
         * @hide
         */
        public static final String SMART_SELECTION_UPDATE_CONTENT_URL =
                "smart_selection_content_url";

        
URL for smart selection model update metadata

@hide
/**
         * URL for smart selection model update metadata
         * @hide
         */
        public static final String SMART_SELECTION_UPDATE_METADATA_URL =
                "smart_selection_metadata_url";

        
SELinux enforcement status. If 0, permissive; if 1, enforcing.

@hide
/**
         * SELinux enforcement status. If 0, permissive; if 1, enforcing.
         * @hide
         */
        public static final String SELINUX_STATUS = "selinux_status";

        
Developer setting to force RTL layout.

@hide
/**
         * Developer setting to force RTL layout.
         * @hide
         */
        public static final String DEVELOPMENT_FORCE_RTL = "debug.force_rtl";

        
Milliseconds after screen-off after which low battery sounds will be silenced.
If zero, battery sounds will always play.
Defaults to @integer/def_low_battery_sound_timeout in SettingsProvider.

@hide
/**
         * Milliseconds after screen-off after which low battery sounds will be silenced.
         *
         * If zero, battery sounds will always play.
         * Defaults to @integer/def_low_battery_sound_timeout in SettingsProvider.
         *
         * @hide
         */
        public static final String LOW_BATTERY_SOUND_TIMEOUT = "low_battery_sound_timeout";

        
Milliseconds to wait before bouncing Wi-Fi after settings is restored. Note that after the caller is done with this, they should call ContentResolver.delete to clean up any value that they may have written. 
@hide
/**
         * Milliseconds to wait before bouncing Wi-Fi after settings is restored. Note that after
         * the caller is done with this, they should call {@link ContentResolver#delete} to
         * clean up any value that they may have written.
         *
         * @hide
         */
        public static final String WIFI_BOUNCE_DELAY_OVERRIDE_MS = "wifi_bounce_delay_override_ms";

        
Defines global runtime overrides to window policy. See PolicyControl for value format. 
@hide
/**
         * Defines global runtime overrides to window policy.
         *
         * See {@link com.android.server.policy.PolicyControl} for value format.
         *
         * @hide
         */
        public static final String POLICY_CONTROL = "policy_control";

        
DisplayCutout emulation mode. 
@hide
/**
         * {@link android.view.DisplayCutout DisplayCutout} emulation mode.
         *
         * @hide
         */
        public static final String EMULATE_DISPLAY_CUTOUT = "emulate_display_cutout";

        
@hide
/** @hide */ public static final int EMULATE_DISPLAY_CUTOUT_OFF = 0;
        
@hide
/** @hide */ public static final int EMULATE_DISPLAY_CUTOUT_ON = 1;

        
A colon separated list of keys for Settings Slices.

@hide
/**
         * A colon separated list of keys for Settings Slices.
         *
         * @hide
         */
        public static final String BLOCKED_SLICES = "blocked_slices";

        
Defines global zen mode.  ZEN_MODE_OFF, ZEN_MODE_IMPORTANT_INTERRUPTIONS,
or ZEN_MODE_NO_INTERRUPTIONS.

@hide
/**
         * Defines global zen mode.  ZEN_MODE_OFF, ZEN_MODE_IMPORTANT_INTERRUPTIONS,
         * or ZEN_MODE_NO_INTERRUPTIONS.
         *
         * @hide
         */
        public static final String ZEN_MODE = "zen_mode";

        
@hide
/** @hide */ public static final int ZEN_MODE_OFF = 0;
        
@hide
/** @hide */ public static final int ZEN_MODE_IMPORTANT_INTERRUPTIONS = 1;
        
@hide
/** @hide */ public static final int ZEN_MODE_NO_INTERRUPTIONS = 2;
        
@hide
/** @hide */ public static final int ZEN_MODE_ALARMS = 3;

        
@hide
/** @hide */ public static String zenModeToString(int mode) {
            if (mode == ZEN_MODE_IMPORTANT_INTERRUPTIONS) return "ZEN_MODE_IMPORTANT_INTERRUPTIONS";
            if (mode == ZEN_MODE_ALARMS) return "ZEN_MODE_ALARMS";
            if (mode == ZEN_MODE_NO_INTERRUPTIONS) return "ZEN_MODE_NO_INTERRUPTIONS";
            return "ZEN_MODE_OFF";
        }

        
@hide
/** @hide */ public static boolean isValidZenMode(int value) {
            switch (value) {
                case Global.ZEN_MODE_OFF:
                case Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS:
                case Global.ZEN_MODE_ALARMS:
                case Global.ZEN_MODE_NO_INTERRUPTIONS:
                    return true;
                default:
                    return false;
            }
        }

        
Value of the ringer before entering zen mode.

@hide
/**
         * Value of the ringer before entering zen mode.
         *
         * @hide
         */
        public static final String ZEN_MODE_RINGER_LEVEL = "zen_mode_ringer_level";

        
Opaque value, changes when persisted zen mode configuration changes.

@hide
/**
         * Opaque value, changes when persisted zen mode configuration changes.
         *
         * @hide
         */
        public static final String ZEN_MODE_CONFIG_ETAG = "zen_mode_config_etag";

        
If 0, turning on dnd manually will last indefinitely.
Else if non-negative, turning on dnd manually will last for this many minutes.
Else (if negative), turning on dnd manually will surface a dialog that prompts
user to specify a duration.

@hide
/**
         * If 0, turning on dnd manually will last indefinitely.
         * Else if non-negative, turning on dnd manually will last for this many minutes.
         * Else (if negative), turning on dnd manually will surface a dialog that prompts
         * user to specify a duration.
         * @hide
         */
        public static final String ZEN_DURATION = "zen_duration";

        private static final Validator ZEN_DURATION_VALIDATOR = ANY_INTEGER_VALIDATOR;

        
@hide
/** @hide */ public static final int ZEN_DURATION_PROMPT = -1;
        
@hide
/** @hide */ public static final int ZEN_DURATION_FOREVER = 0;

        
Defines global heads up toggle.  One of HEADS_UP_OFF, HEADS_UP_ON.

@hide
/**
         * Defines global heads up toggle.  One of HEADS_UP_OFF, HEADS_UP_ON.
         *
         * @hide
         */
        public static final String HEADS_UP_NOTIFICATIONS_ENABLED =
                "heads_up_notifications_enabled";

        
@hide
/** @hide */ public static final int HEADS_UP_OFF = 0;
        
@hide
/** @hide */ public static final int HEADS_UP_ON = 1;

        
The name of the device

/**
         * The name of the device
         */
        public static final String DEVICE_NAME = "device_name";

        
Whether the NetworkScoringService has been first initialized.


Type: int (0 for false, 1 for true)

@hide
/**
         * Whether the NetworkScoringService has been first initialized.
         * <p>
         * Type: int (0 for false, 1 for true)
         * @hide
         */
        public static final String NETWORK_SCORING_PROVISIONED = "network_scoring_provisioned";

        
Whether the user wants to be prompted for password to decrypt the device on boot.
This only matters if the storage is encrypted.


Type: int (0 for false, 1 for true)

@hide
/**
         * Whether the user wants to be prompted for password to decrypt the device on boot.
         * This only matters if the storage is encrypted.
         * <p>
         * Type: int (0 for false, 1 for true)
         * @hide
         */
        public static final String REQUIRE_PASSWORD_TO_DECRYPT = "require_password_to_decrypt";

        
Whether the Volte is enabled. If this setting is not set then we use the Carrier Config value KEY_ENHANCED_4G_LTE_ON_BY_DEFAULT_BOOL.KEY_ENHANCED_4G_LTE_ON_BY_DEFAULT_BOOL. 

Type: int (0 for false, 1 for true)

@hide
Deprecated:Use SubscriptionManager.ENHANCED_4G_MODE_ENABLED instead.
/**
         * Whether the Volte is enabled. If this setting is not set then we use the Carrier Config
         * value {@link CarrierConfigManager#KEY_ENHANCED_4G_LTE_ON_BY_DEFAULT_BOOL}.
         * <p>
         * Type: int (0 for false, 1 for true)
         * @hide
         * @deprecated Use {@link android.telephony.SubscriptionManager#ENHANCED_4G_MODE_ENABLED}
         * instead.
         */
        @Deprecated
        public static final String ENHANCED_4G_MODE_ENABLED =
                SubscriptionManager.ENHANCED_4G_MODE_ENABLED;

        
Whether VT (Video Telephony over IMS) is enabled


Type: int (0 for false, 1 for true)

@hide
Deprecated:Use SubscriptionManager.VT_IMS_ENABLED instead.
/**
         * Whether VT (Video Telephony over IMS) is enabled
         * <p>
         * Type: int (0 for false, 1 for true)
         *
         * @hide
         * @deprecated Use {@link android.telephony.SubscriptionManager#VT_IMS_ENABLED} instead.
         */
        @Deprecated
        public static final String VT_IMS_ENABLED = SubscriptionManager.VT_IMS_ENABLED;

        
Whether WFC is enabled


Type: int (0 for false, 1 for true)

@hide
Deprecated:Use SubscriptionManager.WFC_IMS_ENABLED instead.
/**
         * Whether WFC is enabled
         * <p>
         * Type: int (0 for false, 1 for true)
         *
         * @hide
         * @deprecated Use {@link android.telephony.SubscriptionManager#WFC_IMS_ENABLED} instead.
         */
        @Deprecated
        public static final String WFC_IMS_ENABLED = SubscriptionManager.WFC_IMS_ENABLED;

        
WFC mode on home/non-roaming network.


Type: int - 2=Wi-Fi preferred, 1=Cellular preferred, 0=Wi-Fi only

@hide
Deprecated:Use SubscriptionManager.WFC_IMS_MODE instead.
/**
         * WFC mode on home/non-roaming network.
         * <p>
         * Type: int - 2=Wi-Fi preferred, 1=Cellular preferred, 0=Wi-Fi only
         *
         * @hide
         * @deprecated Use {@link android.telephony.SubscriptionManager#WFC_IMS_MODE} instead.
         */
        @Deprecated
        public static final String WFC_IMS_MODE = SubscriptionManager.WFC_IMS_MODE;

        
WFC mode on roaming network.

 Type: int - see WFC_IMS_MODE for values 
@hide
Deprecated:Use SubscriptionManager.WFC_IMS_ROAMING_MODE instead.
/**
         * WFC mode on roaming network.
         * <p>
         * Type: int - see {@link #WFC_IMS_MODE} for values
         *
         * @hide
         * @deprecated Use {@link android.telephony.SubscriptionManager#WFC_IMS_ROAMING_MODE}
         * instead.
         */
        @Deprecated
        public static final String WFC_IMS_ROAMING_MODE = SubscriptionManager.WFC_IMS_ROAMING_MODE;

        
Whether WFC roaming is enabled


Type: int (0 for false, 1 for true)

@hide
Deprecated:Use SubscriptionManager.WFC_IMS_ROAMING_ENABLED instead
/**
         * Whether WFC roaming is enabled
         * <p>
         * Type: int (0 for false, 1 for true)
         *
         * @hide
         * @deprecated Use {@link android.telephony.SubscriptionManager#WFC_IMS_ROAMING_ENABLED}
         * instead
         */
        @Deprecated
        public static final String WFC_IMS_ROAMING_ENABLED =
                SubscriptionManager.WFC_IMS_ROAMING_ENABLED;

        
Whether user can enable/disable LTE as a preferred network. A carrier might control
this via gservices, OMA-DM, carrier app, etc.


Type: int (0 for false, 1 for true)

@hide
/**
         * Whether user can enable/disable LTE as a preferred network. A carrier might control
         * this via gservices, OMA-DM, carrier app, etc.
         * <p>
         * Type: int (0 for false, 1 for true)
         * @hide
         */
        public static final String LTE_SERVICE_FORCED = "lte_service_forced";

        
Ephemeral app cookie max size in bytes.


Type: int

@hide
/**
         * Ephemeral app cookie max size in bytes.
         * <p>
         * Type: int
         * @hide
         */
        public static final String EPHEMERAL_COOKIE_MAX_SIZE_BYTES =
                "ephemeral_cookie_max_size_bytes";

        
Toggle to enable/disable the entire ephemeral feature. By default, ephemeral is
enabled. Set to zero to disable.


Type: int (0 for false, 1 for true)

@hide
/**
         * Toggle to enable/disable the entire ephemeral feature. By default, ephemeral is
         * enabled. Set to zero to disable.
         * <p>
         * Type: int (0 for false, 1 for true)
         *
         * @hide
         */
        public static final String ENABLE_EPHEMERAL_FEATURE = "enable_ephemeral_feature";

        
Toggle to enable/disable dexopt for instant applications. The default is for dexopt
to be disabled.


Type: int (0 to disable, 1 to enable)

@hide
/**
         * Toggle to enable/disable dexopt for instant applications. The default is for dexopt
         * to be disabled.
         * <p>
         * Type: int (0 to disable, 1 to enable)
         *
         * @hide
         */
        public static final String INSTANT_APP_DEXOPT_ENABLED = "instant_app_dexopt_enabled";

        
The min period for caching installed instant apps in milliseconds.


Type: long

@hide
/**
         * The min period for caching installed instant apps in milliseconds.
         * <p>
         * Type: long
         * @hide
         */
        public static final String INSTALLED_INSTANT_APP_MIN_CACHE_PERIOD =
                "installed_instant_app_min_cache_period";

        
The max period for caching installed instant apps in milliseconds.


Type: long

@hide
/**
         * The max period for caching installed instant apps in milliseconds.
         * <p>
         * Type: long
         * @hide
         */
        public static final String INSTALLED_INSTANT_APP_MAX_CACHE_PERIOD =
                "installed_instant_app_max_cache_period";

        
The min period for caching uninstalled instant apps in milliseconds.


Type: long

@hide
/**
         * The min period for caching uninstalled instant apps in milliseconds.
         * <p>
         * Type: long
         * @hide
         */
        public static final String UNINSTALLED_INSTANT_APP_MIN_CACHE_PERIOD =
                "uninstalled_instant_app_min_cache_period";

        
The max period for caching uninstalled instant apps in milliseconds.


Type: long

@hide
/**
         * The max period for caching uninstalled instant apps in milliseconds.
         * <p>
         * Type: long
         * @hide
         */
        public static final String UNINSTALLED_INSTANT_APP_MAX_CACHE_PERIOD =
                "uninstalled_instant_app_max_cache_period";

        
The min period for caching unused static shared libs in milliseconds.


Type: long

@hide
/**
         * The min period for caching unused static shared libs in milliseconds.
         * <p>
         * Type: long
         * @hide
         */
        public static final String UNUSED_STATIC_SHARED_LIB_MIN_CACHE_PERIOD =
                "unused_static_shared_lib_min_cache_period";

        
Allows switching users when system user is locked.


Type: int

@hide
/**
         * Allows switching users when system user is locked.
         * <p>
         * Type: int
         * @hide
         */
        public static final String ALLOW_USER_SWITCHING_WHEN_SYSTEM_USER_LOCKED =
                "allow_user_switching_when_system_user_locked";

        
Boot count since the device starts running API level 24.


Type: int

/**
         * Boot count since the device starts running API level 24.
         * <p>
         * Type: int
         */
        public static final String BOOT_COUNT = "boot_count";

        
Whether the safe boot is disallowed.

This setting should have the identical value as the corresponding user restriction.
The purpose of the setting is to make the restriction available in early boot stages
before the user restrictions are loaded.

@hide
/**
         * Whether the safe boot is disallowed.
         *
         * <p>This setting should have the identical value as the corresponding user restriction.
         * The purpose of the setting is to make the restriction available in early boot stages
         * before the user restrictions are loaded.
         * @hide
         */
        public static final String SAFE_BOOT_DISALLOWED = "safe_boot_disallowed";

        
Whether this device is currently in retail demo mode. If true, device
usage is severely limited.


Type: int (0 for false, 1 for true)

@hide
/**
         * Whether this device is currently in retail demo mode. If true, device
         * usage is severely limited.
         * <p>
         * Type: int (0 for false, 1 for true)
         * @hide
         */
        public static final String DEVICE_DEMO_MODE = "device_demo_mode";

        
Indicates the maximum time that an app is blocked for the network rules to get updated.
Type: long

@hide
/**
         * Indicates the maximum time that an app is blocked for the network rules to get updated.
         *
         * Type: long
         *
         * @hide
         */
        public static final String NETWORK_ACCESS_TIMEOUT_MS = "network_access_timeout_ms";

        
The reason for the settings database being downgraded. This is only for
troubleshooting purposes and its value should not be interpreted in any way.
Type: string

@hide
/**
         * The reason for the settings database being downgraded. This is only for
         * troubleshooting purposes and its value should not be interpreted in any way.
         *
         * Type: string
         *
         * @hide
         */
        public static final String DATABASE_DOWNGRADE_REASON = "database_downgrade_reason";

        
The build id of when the settings database was first created (or re-created due it
being missing).
Type: string

@hide
/**
         * The build id of when the settings database was first created (or re-created due it
         * being missing).
         *
         * Type: string
         *
         * @hide
         */
        public static final String DATABASE_CREATION_BUILDID = "database_creation_buildid";

        
Flag to toggle journal mode WAL on or off for the contacts database. WAL is enabled by
default. Set to 0 to disable.

@hide
/**
         * Flag to toggle journal mode WAL on or off for the contacts database. WAL is enabled by
         * default. Set to 0 to disable.
         *
         * @hide
         */
        public static final String CONTACTS_DATABASE_WAL_ENABLED = "contacts_database_wal_enabled";

        
Flag to enable the link to location permissions in location setting. Set to 0 to disable.

@hide
/**
         * Flag to enable the link to location permissions in location setting. Set to 0 to disable.
         *
         * @hide
         */
        public static final String LOCATION_SETTINGS_LINK_TO_PERMISSIONS_ENABLED =
                "location_settings_link_to_permissions_enabled";

        
Flag to set the waiting time for euicc factory reset inside System > Settings
Type: long

@hide
/**
         * Flag to set the waiting time for euicc factory reset inside System > Settings
         * Type: long
         *
         * @hide
         */
        public static final String EUICC_FACTORY_RESET_TIMEOUT_MILLIS =
                "euicc_factory_reset_timeout_millis";

        
Flag to set the timeout for when to refresh the storage settings cached data.
Type: long

@hide
/**
         * Flag to set the timeout for when to refresh the storage settings cached data.
         * Type: long
         *
         * @hide
         */
        public static final String STORAGE_SETTINGS_CLOBBER_THRESHOLD =
                "storage_settings_clobber_threshold";

        
If set to 1, Secure.LOCATION_MODE will be set to Secure.LOCATION_MODE_OFF temporarily for all users. 
@hide
/**
         * If set to 1, {@link Secure#LOCATION_MODE} will be set to {@link Secure#LOCATION_MODE_OFF}
         * temporarily for all users.
         *
         * @hide
         */
        @TestApi
        public static final String LOCATION_GLOBAL_KILL_SWITCH =
                "location_global_kill_switch";

        
If set to 1, SettingsProvider's restoreAnyVersion="true" attribute will be ignored
and restoring to lower version of platform API will be skipped.

@hide
/**
         * If set to 1, SettingsProvider's restoreAnyVersion="true" attribute will be ignored
         * and restoring to lower version of platform API will be skipped.
         *
         * @hide
         */
        public static final String OVERRIDE_SETTINGS_PROVIDER_RESTORE_ANY_VERSION =
                "override_settings_provider_restore_any_version";
        
Flag to toggle whether system services report attribution chains when they attribute battery use via a WorkSource. Type: int (0 to disable, 1 to enable) 
@hide
/**
         * Flag to toggle whether system services report attribution chains when they attribute
         * battery use via a {@code WorkSource}.
         *
         * Type: int (0 to disable, 1 to enable)
         *
         * @hide
         */
        public static final String CHAINED_BATTERY_ATTRIBUTION_ENABLED =
                "chained_battery_attribution_enabled";

        
The packages whitelisted to be run in autofill compatibility mode. The list of packages is ":" colon delimited, and each entry has the name of the package and an optional list of url bar resource ids (the list is delimited by brackets&mdash[ and ]&mdash and is also comma delimited). 
For example, a list with 3 packages p1, p2, and p3, where package p1 have one id (url_bar, p2 has none, and p3  have 2 ids url_foo and url_bas) would be p1[url_bar]:p2:p3[url_foo,url_bas] 
@hide
/**
         * The packages whitelisted to be run in autofill compatibility mode. The list
         * of packages is {@code ":"} colon delimited, and each entry has the name of the
         * package and an optional list of url bar resource ids (the list is delimited by
         * brackets&mdash{@code [} and {@code ]}&mdash and is also comma delimited).
         *
         * <p>For example, a list with 3 packages {@code p1}, {@code p2}, and {@code p3}, where
         * package {@code p1} have one id ({@code url_bar}, {@code p2} has none, and {@code p3 }
         * have 2 ids {@code url_foo} and {@code url_bas}) would be
         * {@code p1[url_bar]:p2:p3[url_foo,url_bas]}
         *
         * @hide
         */
        @SystemApi
        @TestApi
        public static final String AUTOFILL_COMPAT_MODE_ALLOWED_PACKAGES =
                "autofill_compat_mode_allowed_packages";

        
Exemptions to the hidden API blacklist.

@hide
/**
         * Exemptions to the hidden API blacklist.
         *
         * @hide
         */
        @TestApi
        public static final String HIDDEN_API_BLACKLIST_EXEMPTIONS =
                "hidden_api_blacklist_exemptions";

        
Sampling rate for hidden API access event logs, as an integer in the range 0 to 0x10000
inclusive.

@hide
/**
         * Sampling rate for hidden API access event logs, as an integer in the range 0 to 0x10000
         * inclusive.
         *
         * @hide
         */
        public static final String HIDDEN_API_ACCESS_LOG_SAMPLING_RATE =
                "hidden_api_access_log_sampling_rate";

        
Hidden API enforcement policy for apps targeting SDK versions prior to the latest version. Values correspond to @HiddenApiEnforcementPolicy 
@hide
/**
         * Hidden API enforcement policy for apps targeting SDK versions prior to the latest
         * version.
         *
         * Values correspond to @{@link
         * android.content.pm.ApplicationInfo.HiddenApiEnforcementPolicy}
         *
         * @hide
         */
        public static final String HIDDEN_API_POLICY_PRE_P_APPS =
                "hidden_api_policy_pre_p_apps";

        
Hidden API enforcement policy for apps targeting the current SDK version. Values correspond to @HiddenApiEnforcementPolicy 
@hide
/**
         * Hidden API enforcement policy for apps targeting the current SDK version.
         *
         * Values correspond to @{@link
         * android.content.pm.ApplicationInfo.HiddenApiEnforcementPolicy}
         *
         * @hide
         */
        public static final String HIDDEN_API_POLICY_P_APPS =
                "hidden_api_policy_p_apps";

        
Timeout for a single SoundTriggerDetectionService operation (in ms). 
@hide
/**
         * Timeout for a single {@link android.media.soundtrigger.SoundTriggerDetectionService}
         * operation (in ms).
         *
         * @hide
         */
        public static final String SOUND_TRIGGER_DETECTION_SERVICE_OP_TIMEOUT =
                "sound_trigger_detection_service_op_timeout";

        
Maximum number of SoundTriggerDetectionService operations per day. 
@hide
/**
         * Maximum number of {@link android.media.soundtrigger.SoundTriggerDetectionService}
         * operations per day.
         *
         * @hide
         */
        public static final String MAX_SOUND_TRIGGER_DETECTION_SERVICE_OPS_PER_DAY =
                "max_sound_trigger_detection_service_ops_per_day";

        
Settings to backup. This is here so that it's in the same place as the settings
keys and easy to update.
These keys may be mentioned in the SETTINGS_TO_BACKUP arrays in System
and Secure as well.  This is because those tables drive both backup and
restore, and restore needs to properly whitelist keys that used to live
in those namespaces.  The keys will only actually be backed up / restored
if they are also mentioned in this table (Global.SETTINGS_TO_BACKUP).
NOTE: Settings are backed up and restored in the order they appear
      in this array. If you have one setting depending on another,
      make sure that they are ordered appropriately.

@hide
/**
         * Settings to backup. This is here so that it's in the same place as the settings
         * keys and easy to update.
         *
         * These keys may be mentioned in the SETTINGS_TO_BACKUP arrays in System
         * and Secure as well.  This is because those tables drive both backup and
         * restore, and restore needs to properly whitelist keys that used to live
         * in those namespaces.  The keys will only actually be backed up / restored
         * if they are also mentioned in this table (Global.SETTINGS_TO_BACKUP).
         *
         * NOTE: Settings are backed up and restored in the order they appear
         *       in this array. If you have one setting depending on another,
         *       make sure that they are ordered appropriately.
         *
         * @hide
         */
        public static final String[] SETTINGS_TO_BACKUP = {
            BUGREPORT_IN_POWER_MENU,
            STAY_ON_WHILE_PLUGGED_IN,
            APP_AUTO_RESTRICTION_ENABLED,
            AUTO_TIME,
            AUTO_TIME_ZONE,
            POWER_SOUNDS_ENABLED,
            DOCK_SOUNDS_ENABLED,
            CHARGING_SOUNDS_ENABLED,
            USB_MASS_STORAGE_ENABLED,
            NETWORK_RECOMMENDATIONS_ENABLED,
            WIFI_WAKEUP_ENABLED,
            WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
            WIFI_CARRIER_NETWORKS_AVAILABLE_NOTIFICATION_ON,
            USE_OPEN_WIFI_PACKAGE,
            WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED,
            EMERGENCY_TONE,
            CALL_AUTO_RETRY,
            DOCK_AUDIO_MEDIA_ENABLED,
            ENCODED_SURROUND_OUTPUT,
            ENCODED_SURROUND_OUTPUT_ENABLED_FORMATS,
            LOW_POWER_MODE_TRIGGER_LEVEL,
            BLUETOOTH_ON,
            PRIVATE_DNS_MODE,
            PRIVATE_DNS_SPECIFIER,
            SOFT_AP_TIMEOUT_ENABLED,
            ZEN_DURATION,
            CHARGING_VIBRATION_ENABLED,
        };

        
All settings in SETTINGS_TO_BACKUP array *must* have a non-null validator, otherwise they won't be restored. 
@hide
/**
         * All settings in {@link SETTINGS_TO_BACKUP} array *must* have a non-null validator,
         * otherwise they won't be restored.
         *
         * @hide
         */
        public static final Map<String, Validator> VALIDATORS = new ArrayMap<>();
        static {
            VALIDATORS.put(BUGREPORT_IN_POWER_MENU, BUGREPORT_IN_POWER_MENU_VALIDATOR);
            VALIDATORS.put(STAY_ON_WHILE_PLUGGED_IN, STAY_ON_WHILE_PLUGGED_IN_VALIDATOR);
            VALIDATORS.put(AUTO_TIME, AUTO_TIME_VALIDATOR);
            VALIDATORS.put(AUTO_TIME_ZONE, AUTO_TIME_ZONE_VALIDATOR);
            VALIDATORS.put(POWER_SOUNDS_ENABLED, POWER_SOUNDS_ENABLED_VALIDATOR);
            VALIDATORS.put(DOCK_SOUNDS_ENABLED, DOCK_SOUNDS_ENABLED_VALIDATOR);
            VALIDATORS.put(CHARGING_SOUNDS_ENABLED, CHARGING_SOUNDS_ENABLED_VALIDATOR);
            VALIDATORS.put(USB_MASS_STORAGE_ENABLED, USB_MASS_STORAGE_ENABLED_VALIDATOR);
            VALIDATORS.put(NETWORK_RECOMMENDATIONS_ENABLED,
                    NETWORK_RECOMMENDATIONS_ENABLED_VALIDATOR);
            VALIDATORS.put(WIFI_WAKEUP_ENABLED, WIFI_WAKEUP_ENABLED_VALIDATOR);
            VALIDATORS.put(WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
                    WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR);
            VALIDATORS.put(USE_OPEN_WIFI_PACKAGE, USE_OPEN_WIFI_PACKAGE_VALIDATOR);
            VALIDATORS.put(WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED,
                    WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED_VALIDATOR);
            VALIDATORS.put(EMERGENCY_TONE, EMERGENCY_TONE_VALIDATOR);
            VALIDATORS.put(CALL_AUTO_RETRY, CALL_AUTO_RETRY_VALIDATOR);
            VALIDATORS.put(DOCK_AUDIO_MEDIA_ENABLED, DOCK_AUDIO_MEDIA_ENABLED_VALIDATOR);
            VALIDATORS.put(ENCODED_SURROUND_OUTPUT, ENCODED_SURROUND_OUTPUT_VALIDATOR);
            VALIDATORS.put(ENCODED_SURROUND_OUTPUT_ENABLED_FORMATS,
                    ENCODED_SURROUND_OUTPUT_ENABLED_FORMATS_VALIDATOR);
            VALIDATORS.put(LOW_POWER_MODE_TRIGGER_LEVEL, LOW_POWER_MODE_TRIGGER_LEVEL_VALIDATOR);
            VALIDATORS.put(LOW_POWER_MODE_TRIGGER_LEVEL_MAX,
                    LOW_POWER_MODE_TRIGGER_LEVEL_VALIDATOR);
            VALIDATORS.put(BLUETOOTH_ON, BLUETOOTH_ON_VALIDATOR);
            VALIDATORS.put(PRIVATE_DNS_MODE, PRIVATE_DNS_MODE_VALIDATOR);
            VALIDATORS.put(PRIVATE_DNS_SPECIFIER, PRIVATE_DNS_SPECIFIER_VALIDATOR);
            VALIDATORS.put(SOFT_AP_TIMEOUT_ENABLED, SOFT_AP_TIMEOUT_ENABLED_VALIDATOR);
            VALIDATORS.put(WIFI_CARRIER_NETWORKS_AVAILABLE_NOTIFICATION_ON,
                    WIFI_CARRIER_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR);
            VALIDATORS.put(APP_AUTO_RESTRICTION_ENABLED, APP_AUTO_RESTRICTION_ENABLED_VALIDATOR);
            VALIDATORS.put(ZEN_DURATION, ZEN_DURATION_VALIDATOR);
            VALIDATORS.put(CHARGING_VIBRATION_ENABLED, CHARGING_VIBRATION_ENABLED_VALIDATOR);
        }

        
Global settings that shouldn't be persisted.

@hide
/**
         * Global settings that shouldn't be persisted.
         *
         * @hide
         */
        public static final String[] TRANSIENT_SETTINGS = {
                LOCATION_GLOBAL_KILL_SWITCH,
        };

        
Keys we no longer back up under the current schema, but want to continue to process when restoring historical backup datasets. All settings in LEGACY_RESTORE_SETTINGS array *must* have a non-null validator, otherwise they won't be restored. 
@hide
/**
         * Keys we no longer back up under the current schema, but want to continue to
         * process when restoring historical backup datasets.
         *
         * All settings in {@link LEGACY_RESTORE_SETTINGS} array *must* have a non-null validator,
         * otherwise they won't be restored.
         *
         * @hide
         */
        public static final String[] LEGACY_RESTORE_SETTINGS = {
        };

        private static final ContentProviderHolder sProviderHolder =
                new ContentProviderHolder(CONTENT_URI);

        // Populated lazily, guarded by class object:
        private static final NameValueCache sNameValueCache = new NameValueCache(
                    CONTENT_URI,
                    CALL_METHOD_GET_GLOBAL,
                    CALL_METHOD_PUT_GLOBAL,
                    sProviderHolder);

        // Certain settings have been moved from global to the per-user secure namespace
        private static final HashSet<String> MOVED_TO_SECURE;
        static {
            MOVED_TO_SECURE = new HashSet<>(1);
            MOVED_TO_SECURE.add(Settings.Global.INSTALL_NON_MARKET_APPS);
        }

        
@hide
/** @hide */
        public static void getMovedToSecureSettings(Set<String> outKeySet) {
            outKeySet.addAll(MOVED_TO_SECURE);
        }

        
@hide
/** @hide */
        public static void clearProviderForTest() {
            sProviderHolder.clearProviderForTest();
            sNameValueCache.clearGenerationTrackerForTest();
        }

        
Look up a name in the database.

Params:
  • resolver – to access the database with
  • name – to look up in the table
Returns:the corresponding value, or null if not present
/**
         * Look up a name in the database.
         * @param resolver to access the database with
         * @param name to look up in the table
         * @return the corresponding value, or null if not present
         */
        public static String getString(ContentResolver resolver, String name) {
            return getStringForUser(resolver, name, resolver.getUserId());
        }

        
@hide
/** @hide */
        public static String getStringForUser(ContentResolver resolver, String name,
                int userHandle) {
            if (MOVED_TO_SECURE.contains(name)) {
                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Global"
                        + " to android.provider.Settings.Secure, returning read-only value.");
                return Secure.getStringForUser(resolver, name, userHandle);
            }
            return sNameValueCache.getStringForUser(resolver, name, userHandle);
        }

        
Store a name/value pair into the database.

Params:
  • resolver – to access the database with
  • name – to store
  • value – to associate with the name
Returns:true if the value was set, false on database errors
/**
         * Store a name/value pair into the database.
         * @param resolver to access the database with
         * @param name to store
         * @param value to associate with the name
         * @return true if the value was set, false on database errors
         */
        public static boolean putString(ContentResolver resolver,
                String name, String value) {
            return putStringForUser(resolver, name, value, null, false, resolver.getUserId());
        }

        
Store a name/value pair into the database.

 The method takes an optional tag to associate with the setting which can be used to clear only settings made by your package and associated with this tag by passing the tag to resetToDefaults(ContentResolver, String). Anyone can override the current tag. Also if another package changes the setting then the tag will be set to the one specified in the set call which can be null. Also any of the settings setters that do not take a tag as an argument effectively clears the tag. 

For example, if you set settings A and B with tags T1 and T2 and
another app changes setting A (potentially to the same value), it
can assign to it a tag T3 (note that now the package that changed
the setting is not yours). Now if you reset your changes for T1 and
T2 only setting B will be reset and A not (as it was changed by
another package) but since A did not change you are in the desired
initial state. Now if the other app changes the value of A (assuming
you registered an observer in the beginning) you would detect that
the setting was changed by another app and handle this appropriately
(ignore, set back to some value, etc).


Also the method takes an argument whether to make the value the
default for this setting. If the system already specified a default
value, then the one passed in here will not
be set as the default.



Params:
  • resolver – to access the database with.
  • name – to store.
  • value – to associate with the name.
  • tag – to associated with the setting.
  • makeDefault – whether to make the value the default one.
See Also:
Returns:true if the value was set, false on database errors.
@hide
/**
         * Store a name/value pair into the database.
         * <p>
         * The method takes an optional tag to associate with the setting
         * which can be used to clear only settings made by your package and
         * associated with this tag by passing the tag to {@link
         * #resetToDefaults(ContentResolver, String)}. Anyone can override
         * the current tag. Also if another package changes the setting
         * then the tag will be set to the one specified in the set call
         * which can be null. Also any of the settings setters that do not
         * take a tag as an argument effectively clears the tag.
         * </p><p>
         * For example, if you set settings A and B with tags T1 and T2 and
         * another app changes setting A (potentially to the same value), it
         * can assign to it a tag T3 (note that now the package that changed
         * the setting is not yours). Now if you reset your changes for T1 and
         * T2 only setting B will be reset and A not (as it was changed by
         * another package) but since A did not change you are in the desired
         * initial state. Now if the other app changes the value of A (assuming
         * you registered an observer in the beginning) you would detect that
         * the setting was changed by another app and handle this appropriately
         * (ignore, set back to some value, etc).
         * </p><p>
         * Also the method takes an argument whether to make the value the
         * default for this setting. If the system already specified a default
         * value, then the one passed in here will <strong>not</strong>
         * be set as the default.
         * </p>
         *
         * @param resolver to access the database with.
         * @param name to store.
         * @param value to associate with the name.
         * @param tag to associated with the setting.
         * @param makeDefault whether to make the value the default one.
         * @return true if the value was set, false on database errors.
         *
         * @see #resetToDefaults(ContentResolver, String)
         *
         * @hide
         */
        @SystemApi
        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
        public static boolean putString(@NonNull ContentResolver resolver,
                @NonNull String name, @Nullable String value, @Nullable String tag,
                boolean makeDefault) {
            return putStringForUser(resolver, name, value, tag, makeDefault,
                    resolver.getUserId());
        }

        
Reset the settings to their defaults. This would reset only
settings set by the caller's package. Think of it of a way to undo your own
changes to the secure settings. Passing in the optional tag will reset only
settings changed by your package and associated with this tag.

Params:
  • resolver – Handle to the content resolver.
  • tag – Optional tag which should be associated with the settings to reset.
See Also:
@hide
/**
         * Reset the settings to their defaults. This would reset <strong>only</strong>
         * settings set by the caller's package. Think of it of a way to undo your own
         * changes to the secure settings. Passing in the optional tag will reset only
         * settings changed by your package and associated with this tag.
         *
         * @param resolver Handle to the content resolver.
         * @param tag Optional tag which should be associated with the settings to reset.
         *
         * @see #putString(ContentResolver, String, String, String, boolean)
         *
         * @hide
         */
        @SystemApi
        @RequiresPermission(Manifest.permission.WRITE_SECURE_SETTINGS)
        public static void resetToDefaults(@NonNull ContentResolver resolver,
                @Nullable String tag) {
            resetToDefaultsAsUser(resolver, tag, RESET_MODE_PACKAGE_DEFAULTS,
                    resolver.getUserId());
        }

        
Reset the settings to their defaults for a given user with a specific mode. The optional tag argument is valid only for Settings.RESET_MODE_PACKAGE_DEFAULTS allowing resetting the settings made by a package and associated with the tag. 
Params:
  • resolver – Handle to the content resolver.
  • tag – Optional tag which should be associated with the settings to reset.
  • mode – The reset mode.
  • userHandle – The user for which to reset to defaults.
See Also:
@hide
/**
         * Reset the settings to their defaults for a given user with a specific mode. The
         * optional tag argument is valid only for {@link #RESET_MODE_PACKAGE_DEFAULTS}
         * allowing resetting the settings made by a package and associated with the tag.
         *
         * @param resolver Handle to the content resolver.
         * @param tag Optional tag which should be associated with the settings to reset.
         * @param mode The reset mode.
         * @param userHandle The user for which to reset to defaults.
         *
         * @see #RESET_MODE_PACKAGE_DEFAULTS
         * @see #RESET_MODE_UNTRUSTED_DEFAULTS
         * @see #RESET_MODE_UNTRUSTED_CHANGES
         * @see #RESET_MODE_TRUSTED_DEFAULTS
         *
         * @hide
         */
        public static void resetToDefaultsAsUser(@NonNull ContentResolver resolver,
                @Nullable String tag, @ResetMode int mode, @IntRange(from = 0) int userHandle) {
            try {
                Bundle arg = new Bundle();
                arg.putInt(CALL_METHOD_USER_KEY, userHandle);
                if (tag != null) {
                    arg.putString(CALL_METHOD_TAG_KEY, tag);
                }
                arg.putInt(CALL_METHOD_RESET_MODE_KEY, mode);
                IContentProvider cp = sProviderHolder.getProvider(resolver);
                cp.call(resolver.getPackageName(), CALL_METHOD_RESET_GLOBAL, null, arg);
            } catch (RemoteException e) {
                Log.w(TAG, "Can't reset do defaults for " + CONTENT_URI, e);
            }
        }

        
@hide
/** @hide */
        public static boolean putStringForUser(ContentResolver resolver,
                String name, String value, int userHandle) {
            return putStringForUser(resolver, name, value, null, false, userHandle);
        }

        
@hide
/** @hide */
        public static boolean putStringForUser(@NonNull ContentResolver resolver,
                @NonNull String name, @Nullable String value, @Nullable String tag,
                boolean makeDefault, @UserIdInt int userHandle) {
            if (LOCAL_LOGV) {
                Log.v(TAG, "Global.putString(name=" + name + ", value=" + value
                        + " for " + userHandle);
            }
            // Global and Secure have the same access policy so we can forward writes
            if (MOVED_TO_SECURE.contains(name)) {
                Log.w(TAG, "Setting " + name + " has moved from android.provider.Settings.Global"
                        + " to android.provider.Settings.Secure, value is unchanged.");
                return Secure.putStringForUser(resolver, name, value, tag,
                        makeDefault, userHandle);
            }
            return sNameValueCache.putStringForUser(resolver, name, value, tag,
                    makeDefault, userHandle);
        }

        
Construct the content URI for a particular name/value pair,
useful for monitoring changes with a ContentObserver.

Params:
  • name – to look up in the table
Returns:the corresponding content URI, or null if not present
/**
         * Construct the content URI for a particular name/value pair,
         * useful for monitoring changes with a ContentObserver.
         * @param name to look up in the table
         * @return the corresponding content URI, or null if not present
         */
        public static Uri getUriFor(String name) {
            return getUriFor(CONTENT_URI, name);
        }

        
Convenience function for retrieving a single secure settings value
as an integer.  Note that internally setting values are always
stored as strings; this function converts the string to an integer
for you.  The default value will be returned if the setting is
not defined or not an integer.

Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
  • def – Value to return if the setting is not defined.
Returns:The setting's current value, or 'def' if it is not defined
or not a valid integer.
/**
         * Convenience function for retrieving a single secure settings value
         * as an integer.  Note that internally setting values are always
         * stored as strings; this function converts the string to an integer
         * for you.  The default value will be returned if the setting is
         * not defined or not an integer.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         * @param def Value to return if the setting is not defined.
         *
         * @return The setting's current value, or 'def' if it is not defined
         * or not a valid integer.
         */
        public static int getInt(ContentResolver cr, String name, int def) {
            String v = getString(cr, name);
            try {
                return v != null ? Integer.parseInt(v) : def;
            } catch (NumberFormatException e) {
                return def;
            }
        }

        
Convenience function for retrieving a single secure settings value
as an integer.  Note that internally setting values are always
stored as strings; this function converts the string to an integer
for you.

 This version does not take a default value. If the setting has not been set, or the string value is not a number, it throws SettingNotFoundException. 
Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
Throws:
  • SettingNotFoundException – Thrown if a setting by the given
name can't be found or the setting value is not an integer.
Returns:The setting's current value.
/**
         * Convenience function for retrieving a single secure settings value
         * as an integer.  Note that internally setting values are always
         * stored as strings; this function converts the string to an integer
         * for you.
         * <p>
         * This version does not take a default value.  If the setting has not
         * been set, or the string value is not a number,
         * it throws {@link SettingNotFoundException}.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         *
         * @throws SettingNotFoundException Thrown if a setting by the given
         * name can't be found or the setting value is not an integer.
         *
         * @return The setting's current value.
         */
        public static int getInt(ContentResolver cr, String name)
                throws SettingNotFoundException {
            String v = getString(cr, name);
            try {
                return Integer.parseInt(v);
            } catch (NumberFormatException e) {
                throw new SettingNotFoundException(name);
            }
        }

        
Convenience function for updating a single settings value as an
integer. This will either create a new entry in the table if the
given name does not exist, or modify the value of the existing row
with that name.  Note that internally setting values are always
stored as strings, so this function converts the given value to a
string before storing it.

Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to modify.
  • value – The new value for the setting.
Returns:true if the value was set, false on database errors
/**
         * Convenience function for updating a single settings value as an
         * integer. This will either create a new entry in the table if the
         * given name does not exist, or modify the value of the existing row
         * with that name.  Note that internally setting values are always
         * stored as strings, so this function converts the given value to a
         * string before storing it.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to modify.
         * @param value The new value for the setting.
         * @return true if the value was set, false on database errors
         */
        public static boolean putInt(ContentResolver cr, String name, int value) {
            return putString(cr, name, Integer.toString(value));
        }

        
Convenience function for retrieving a single secure settings value as a long. Note that internally setting values are always stored as strings; this function converts the string to a long for you. The default value will be returned if the setting is not defined or not a long. 
Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
  • def – Value to return if the setting is not defined.
Returns:The setting's current value, or 'def' if it is not defined or not a valid long.
/**
         * Convenience function for retrieving a single secure settings value
         * as a {@code long}.  Note that internally setting values are always
         * stored as strings; this function converts the string to a {@code long}
         * for you.  The default value will be returned if the setting is
         * not defined or not a {@code long}.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         * @param def Value to return if the setting is not defined.
         *
         * @return The setting's current value, or 'def' if it is not defined
         * or not a valid {@code long}.
         */
        public static long getLong(ContentResolver cr, String name, long def) {
            String valString = getString(cr, name);
            long value;
            try {
                value = valString != null ? Long.parseLong(valString) : def;
            } catch (NumberFormatException e) {
                value = def;
            }
            return value;
        }

        
Convenience function for retrieving a single secure settings value as a long. Note that internally setting values are always stored as strings; this function converts the string to a long for you. 
 This version does not take a default value. If the setting has not been set, or the string value is not a number, it throws SettingNotFoundException. 
Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
Throws:
  • SettingNotFoundException – Thrown if a setting by the given
name can't be found or the setting value is not an integer.
Returns:The setting's current value.
/**
         * Convenience function for retrieving a single secure settings value
         * as a {@code long}.  Note that internally setting values are always
         * stored as strings; this function converts the string to a {@code long}
         * for you.
         * <p>
         * This version does not take a default value.  If the setting has not
         * been set, or the string value is not a number,
         * it throws {@link SettingNotFoundException}.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         *
         * @return The setting's current value.
         * @throws SettingNotFoundException Thrown if a setting by the given
         * name can't be found or the setting value is not an integer.
         */
        public static long getLong(ContentResolver cr, String name)
                throws SettingNotFoundException {
            String valString = getString(cr, name);
            try {
                return Long.parseLong(valString);
            } catch (NumberFormatException e) {
                throw new SettingNotFoundException(name);
            }
        }

        
Convenience function for updating a secure settings value as a long
integer. This will either create a new entry in the table if the
given name does not exist, or modify the value of the existing row
with that name.  Note that internally setting values are always
stored as strings, so this function converts the given value to a
string before storing it.

Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to modify.
  • value – The new value for the setting.
Returns:true if the value was set, false on database errors
/**
         * Convenience function for updating a secure settings value as a long
         * integer. This will either create a new entry in the table if the
         * given name does not exist, or modify the value of the existing row
         * with that name.  Note that internally setting values are always
         * stored as strings, so this function converts the given value to a
         * string before storing it.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to modify.
         * @param value The new value for the setting.
         * @return true if the value was set, false on database errors
         */
        public static boolean putLong(ContentResolver cr, String name, long value) {
            return putString(cr, name, Long.toString(value));
        }

        
Convenience function for retrieving a single secure settings value
as a floating point number.  Note that internally setting values are
always stored as strings; this function converts the string to an
float for you. The default value will be returned if the setting
is not defined or not a valid float.

Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
  • def – Value to return if the setting is not defined.
Returns:The setting's current value, or 'def' if it is not defined
or not a valid float.
/**
         * Convenience function for retrieving a single secure settings value
         * as a floating point number.  Note that internally setting values are
         * always stored as strings; this function converts the string to an
         * float for you. The default value will be returned if the setting
         * is not defined or not a valid float.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         * @param def Value to return if the setting is not defined.
         *
         * @return The setting's current value, or 'def' if it is not defined
         * or not a valid float.
         */
        public static float getFloat(ContentResolver cr, String name, float def) {
            String v = getString(cr, name);
            try {
                return v != null ? Float.parseFloat(v) : def;
            } catch (NumberFormatException e) {
                return def;
            }
        }

        
Convenience function for retrieving a single secure settings value
as a float.  Note that internally setting values are always
stored as strings; this function converts the string to a float
for you.

 This version does not take a default value. If the setting has not been set, or the string value is not a number, it throws SettingNotFoundException. 
Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to retrieve.
Throws:
Returns:The setting's current value.
/**
         * Convenience function for retrieving a single secure settings value
         * as a float.  Note that internally setting values are always
         * stored as strings; this function converts the string to a float
         * for you.
         * <p>
         * This version does not take a default value.  If the setting has not
         * been set, or the string value is not a number,
         * it throws {@link SettingNotFoundException}.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to retrieve.
         *
         * @throws SettingNotFoundException Thrown if a setting by the given
         * name can't be found or the setting value is not a float.
         *
         * @return The setting's current value.
         */
        public static float getFloat(ContentResolver cr, String name)
                throws SettingNotFoundException {
            String v = getString(cr, name);
            if (v == null) {
                throw new SettingNotFoundException(name);
            }
            try {
                return Float.parseFloat(v);
            } catch (NumberFormatException e) {
                throw new SettingNotFoundException(name);
            }
        }

        
Convenience function for updating a single settings value as a
floating point number. This will either create a new entry in the
table if the given name does not exist, or modify the value of the
existing row with that name.  Note that internally setting values
are always stored as strings, so this function converts the given
value to a string before storing it.

Params:
  • cr – The ContentResolver to access.
  • name – The name of the setting to modify.
  • value – The new value for the setting.
Returns:true if the value was set, false on database errors
/**
         * Convenience function for updating a single settings value as a
         * floating point number. This will either create a new entry in the
         * table if the given name does not exist, or modify the value of the
         * existing row with that name.  Note that internally setting values
         * are always stored as strings, so this function converts the given
         * value to a string before storing it.
         *
         * @param cr The ContentResolver to access.
         * @param name The name of the setting to modify.
         * @param value The new value for the setting.
         * @return true if the value was set, false on database errors
         */
        public static boolean putFloat(ContentResolver cr, String name, float value) {
            return putString(cr, name, Float.toString(value));
        }

        
Subscription to be used for voice call on a multi sim device. The supported values
are 0 = SUB1, 1 = SUB2 and etc.

@hide
/**
          * Subscription to be used for voice call on a multi sim device. The supported values
          * are 0 = SUB1, 1 = SUB2 and etc.
          * @hide
          */
        public static final String MULTI_SIM_VOICE_CALL_SUBSCRIPTION = "multi_sim_voice_call";

        
Used to provide option to user to select subscription during dial.
The supported values are 0 = disable or 1 = enable prompt.

@hide
/**
          * Used to provide option to user to select subscription during dial.
          * The supported values are 0 = disable or 1 = enable prompt.
          * @hide
          */
        public static final String MULTI_SIM_VOICE_PROMPT = "multi_sim_voice_prompt";

        
Subscription to be used for data call on a multi sim device. The supported values
are 0 = SUB1, 1 = SUB2 and etc.

@hide
/**
          * Subscription to be used for data call on a multi sim device. The supported values
          * are 0 = SUB1, 1 = SUB2 and etc.
          * @hide
          */
        public static final String MULTI_SIM_DATA_CALL_SUBSCRIPTION = "multi_sim_data_call";

        
Subscription to be used for SMS on a multi sim device. The supported values
are 0 = SUB1, 1 = SUB2 and etc.

@hide
/**
          * Subscription to be used for SMS on a multi sim device. The supported values
          * are 0 = SUB1, 1 = SUB2 and etc.
          * @hide
          */
        public static final String MULTI_SIM_SMS_SUBSCRIPTION = "multi_sim_sms";

        
Used to provide option to user to select subscription during send SMS.
The value 1 - enable, 0 - disable

@hide
/**
          * Used to provide option to user to select subscription during send SMS.
          * The value 1 - enable, 0 - disable
          * @hide
          */
        public static final String MULTI_SIM_SMS_PROMPT = "multi_sim_sms_prompt";

        
User preferred subscriptions setting.
This holds the details of the user selected subscription from the card and
the activation status. Each settings string have the comma separated values
iccId,appType,appId,activationStatus,3gppIndex,3gpp2Index

@hide
/** User preferred subscriptions setting.
          * This holds the details of the user selected subscription from the card and
          * the activation status. Each settings string have the comma separated values
          * iccId,appType,appId,activationStatus,3gppIndex,3gpp2Index
          * @hide
         */
        public static final String[] MULTI_SIM_USER_PREFERRED_SUBS = {"user_preferred_sub1",
                "user_preferred_sub2","user_preferred_sub3"};

        
Whether to enable new contacts aggregator or not.
The value 1 - enable, 0 - disable

@hide
/**
         * Whether to enable new contacts aggregator or not.
         * The value 1 - enable, 0 - disable
         * @hide
         */
        public static final String NEW_CONTACT_AGGREGATOR = "new_contact_aggregator";

        
Whether to enable contacts metadata syncing or not
The value 1 - enable, 0 - disable

@removed
/**
         * Whether to enable contacts metadata syncing or not
         * The value 1 - enable, 0 - disable
         *
         * @removed
         */
        @Deprecated
        public static final String CONTACT_METADATA_SYNC = "contact_metadata_sync";

        
Whether to enable contacts metadata syncing or not
The value 1 - enable, 0 - disable

/**
         * Whether to enable contacts metadata syncing or not
         * The value 1 - enable, 0 - disable
         */
        public static final String CONTACT_METADATA_SYNC_ENABLED = "contact_metadata_sync_enabled";

        
Whether to enable cellular on boot.
The value 1 - enable, 0 - disable

@hide
/**
         * Whether to enable cellular on boot.
         * The value 1 - enable, 0 - disable
         * @hide
         */
        public static final String ENABLE_CELLULAR_ON_BOOT = "enable_cellular_on_boot";

        
The maximum allowed notification enqueue rate in Hertz.
Should be a float, and includes updates only.

@hide
/**
         * The maximum allowed notification enqueue rate in Hertz.
         *
         * Should be a float, and includes updates only.
         * @hide
         */
        public static final String MAX_NOTIFICATION_ENQUEUE_RATE = "max_notification_enqueue_rate";

        
Displays toasts when an app posts a notification that does not specify a valid channel.
The value 1 - enable, 0 - disable

@hide
/**
         * Displays toasts when an app posts a notification that does not specify a valid channel.
         *
         * The value 1 - enable, 0 - disable
         * @hide
         */
        public static final String SHOW_NOTIFICATION_CHANNEL_WARNINGS =
                "show_notification_channel_warnings";

        
Whether cell is enabled/disabled

@hide
/**
         * Whether cell is enabled/disabled
         * @hide
         */
        public static final String CELL_ON = "cell_on";

        
Global settings which can be accessed by instant apps.

@hide
/**
         * Global settings which can be accessed by instant apps.
         * @hide
         */
        public static final Set<String> INSTANT_APP_SETTINGS = new ArraySet<>();
        static {
            INSTANT_APP_SETTINGS.add(WAIT_FOR_DEBUGGER);
            INSTANT_APP_SETTINGS.add(DEVICE_PROVISIONED);
            INSTANT_APP_SETTINGS.add(DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES);
            INSTANT_APP_SETTINGS.add(DEVELOPMENT_FORCE_RTL);
            INSTANT_APP_SETTINGS.add(EPHEMERAL_COOKIE_MAX_SIZE_BYTES);
            INSTANT_APP_SETTINGS.add(AIRPLANE_MODE_ON);
            INSTANT_APP_SETTINGS.add(WINDOW_ANIMATION_SCALE);
            INSTANT_APP_SETTINGS.add(TRANSITION_ANIMATION_SCALE);
            INSTANT_APP_SETTINGS.add(ANIMATOR_DURATION_SCALE);
            INSTANT_APP_SETTINGS.add(DEBUG_VIEW_ATTRIBUTES);
            INSTANT_APP_SETTINGS.add(WTF_IS_FATAL);
            INSTANT_APP_SETTINGS.add(SEND_ACTION_APP_ERROR);
            INSTANT_APP_SETTINGS.add(ZEN_MODE);
        }

        
Whether to show the high temperature warning notification.

@hide
/**
         * Whether to show the high temperature warning notification.
         * @hide
         */
        public static final String SHOW_TEMPERATURE_WARNING = "show_temperature_warning";

        
Temperature at which the high temperature warning notification should be shown.

@hide
/**
         * Temperature at which the high temperature warning notification should be shown.
         * @hide
         */
        public static final String WARNING_TEMPERATURE = "warning_temperature";

        
Whether the diskstats logging task is enabled/disabled.

@hide
/**
         * Whether the diskstats logging task is enabled/disabled.
         * @hide
         */
        public static final String ENABLE_DISKSTATS_LOGGING = "enable_diskstats_logging";

        
Whether the cache quota calculation task is enabled/disabled.

@hide
/**
         * Whether the cache quota calculation task is enabled/disabled.
         * @hide
         */
        public static final String ENABLE_CACHE_QUOTA_CALCULATION =
                "enable_cache_quota_calculation";

        
Whether the Deletion Helper no threshold toggle is available.

@hide
/**
         * Whether the Deletion Helper no threshold toggle is available.
         * @hide
         */
        public static final String ENABLE_DELETION_HELPER_NO_THRESHOLD_TOGGLE =
                "enable_deletion_helper_no_threshold_toggle";

        
The list of snooze options for notifications
This is encoded as a key=value list, separated by commas. Ex:
"default=60,options_array=15:30:60:120"
The following keys are supported:

default               (int)
options_array         (int[])


All delays in integer minutes. Array order is respected.
Options will be used in order up to the maximum allowed by the UI.

@hide
/**
         * The list of snooze options for notifications
         * This is encoded as a key=value list, separated by commas. Ex:
         *
         * "default=60,options_array=15:30:60:120"
         *
         * The following keys are supported:
         *
         * <pre>
         * default               (int)
         * options_array         (int[])
         * </pre>
         *
         * All delays in integer minutes. Array order is respected.
         * Options will be used in order up to the maximum allowed by the UI.
         * @hide
         */
        public static final String NOTIFICATION_SNOOZE_OPTIONS =
                "notification_snooze_options";

        
Settings key for the ratio of notification dismissals to notification views - one of the
criteria for showing the notification blocking helper.

The value is a float ranging from 0.0 to 1.0 (the closer to 0.0, the more intrusive
the blocking helper will be).

@hide
/**
         * Settings key for the ratio of notification dismissals to notification views - one of the
         * criteria for showing the notification blocking helper.
         *
         * <p>The value is a float ranging from 0.0 to 1.0 (the closer to 0.0, the more intrusive
         * the blocking helper will be).
         *
         * @hide
         */
        public static final String BLOCKING_HELPER_DISMISS_TO_VIEW_RATIO_LIMIT =
                "blocking_helper_dismiss_to_view_ratio";

        
Settings key for the longest streak of dismissals  - one of the criteria for showing the
notification blocking helper.

The value is an integer greater than 0.

@hide
/**
         * Settings key for the longest streak of dismissals  - one of the criteria for showing the
         * notification blocking helper.
         *
         * <p>The value is an integer greater than 0.
         *
         * @hide
         */
        public static final String BLOCKING_HELPER_STREAK_LIMIT = "blocking_helper_streak_limit";

        
Configuration flags for SQLite Compatibility WAL. Encoded as a key-value list, separated
by commas. E.g.: compatibility_wal_supported=true, wal_syncmode=OFF
Supported keys:
compatibility_wal_supported      (boolean)
wal_syncmode       (String)
truncate_size      (int)

@hide
/**
         * Configuration flags for SQLite Compatibility WAL. Encoded as a key-value list, separated
         * by commas. E.g.: compatibility_wal_supported=true, wal_syncmode=OFF
         *
         * Supported keys:
         * compatibility_wal_supported      (boolean)
         * wal_syncmode       (String)
         * truncate_size      (int)
         *
         * @hide
         */
        public static final String SQLITE_COMPATIBILITY_WAL_FLAGS =
                "sqlite_compatibility_wal_flags";

        
Enable GNSS Raw Measurements Full Tracking?
0 = no
1 = yes

@hide
/**
         * Enable GNSS Raw Measurements Full Tracking?
         * 0 = no
         * 1 = yes
         * @hide
         */
        public static final String ENABLE_GNSS_RAW_MEAS_FULL_TRACKING =
                "enable_gnss_raw_meas_full_tracking";

        
Whether the notification should be ongoing (persistent) when a carrier app install is
required.
The value is a boolean (1 or 0).

@hide
/**
         * Whether the notification should be ongoing (persistent) when a carrier app install is
         * required.
         *
         * The value is a boolean (1 or 0).
         * @hide
         */
        @SystemApi
        public static final String INSTALL_CARRIER_APP_NOTIFICATION_PERSISTENT =
                "install_carrier_app_notification_persistent";

        
The amount of time (ms) to hide the install carrier app notification after the user has
ignored it. After this time passes, the notification will be shown again
The value is a long

@hide
/**
         * The amount of time (ms) to hide the install carrier app notification after the user has
         * ignored it. After this time passes, the notification will be shown again
         *
         * The value is a long
         * @hide
         */
        @SystemApi
        public static final String INSTALL_CARRIER_APP_NOTIFICATION_SLEEP_MILLIS =
                "install_carrier_app_notification_sleep_millis";

        
Whether we've enabled zram on this device. Takes effect on
reboot. The value "1" enables zram; "0" disables it, and
everything else is unspecified.

@hide
/**
         * Whether we've enabled zram on this device. Takes effect on
         * reboot. The value "1" enables zram; "0" disables it, and
         * everything else is unspecified.
         * @hide
         */
        public static final String ZRAM_ENABLED =
                "zram_enabled";

        
Whether we have enable CPU frequency scaling for this device.
For Wear, default is disable.
The value is "1" for enable, "0" for disable.

@hide
/**
         * Whether we have enable CPU frequency scaling for this device.
         * For Wear, default is disable.
         *
         * The value is "1" for enable, "0" for disable.
         * @hide
         */
        public static final String CPU_SCALING_ENABLED =
                "cpu_frequency_scaling_enabled";

        
Configuration flags for smart replies in notifications.
This is encoded as a key=value list, separated by commas. Ex:
"enabled=1,max_squeeze_remeasure_count=3"
The following keys are supported:

enabled                         (boolean)
requires_targeting_p            (boolean)
max_squeeze_remeasure_attempts  (int)



See Also:
  • SmartReplyConstants
@hide
/**
         * Configuration flags for smart replies in notifications.
         * This is encoded as a key=value list, separated by commas. Ex:
         *
         * "enabled=1,max_squeeze_remeasure_count=3"
         *
         * The following keys are supported:
         *
         * <pre>
         * enabled                         (boolean)
         * requires_targeting_p            (boolean)
         * max_squeeze_remeasure_attempts  (int)
         * </pre>
         * @see com.android.systemui.statusbar.policy.SmartReplyConstants
         * @hide
         */
        public static final String SMART_REPLIES_IN_NOTIFICATIONS_FLAGS =
                "smart_replies_in_notifications_flags";

        
If nonzero, crashes in foreground processes will bring up a dialog.
Otherwise, the process will be silently killed.

@hide
/**
         * If nonzero, crashes in foreground processes will bring up a dialog.
         * Otherwise, the process will be silently killed.
         * @hide
         */
        public static final String SHOW_FIRST_CRASH_DIALOG = "show_first_crash_dialog";

        
If nonzero, crash dialogs will show an option to restart the app.

@hide
/**
         * If nonzero, crash dialogs will show an option to restart the app.
         * @hide
         */
        public static final String SHOW_RESTART_IN_CRASH_DIALOG = "show_restart_in_crash_dialog";

        
If nonzero, crash dialogs will show an option to mute all future crash dialogs for
this app.

@hide
/**
         * If nonzero, crash dialogs will show an option to mute all future crash dialogs for
         * this app.
         * @hide
         */
        public static final String SHOW_MUTE_IN_CRASH_DIALOG = "show_mute_in_crash_dialog";

        
If nonzero, will show the zen upgrade notification when the user toggles DND on/off.

@hide
/**
         * If nonzero, will show the zen upgrade notification when the user toggles DND on/off.
         * @hide
         */
        public static final String SHOW_ZEN_UPGRADE_NOTIFICATION = "show_zen_upgrade_notification";

        
If nonzero, will show the zen update settings suggestion.

@hide
/**
         * If nonzero, will show the zen update settings suggestion.
         * @hide
         */
        public static final String SHOW_ZEN_SETTINGS_SUGGESTION = "show_zen_settings_suggestion";

        
If nonzero, zen has not been updated to reflect new changes.

@hide
/**
         * If nonzero, zen has not been updated to reflect new changes.
         * @hide
         */
        public static final String ZEN_SETTINGS_UPDATED = "zen_settings_updated";

        
If nonzero, zen setting suggestion has beem viewed by user

@hide
/**
         * If nonzero, zen setting suggestion has beem viewed by user
         * @hide
         */
        public static final String ZEN_SETTINGS_SUGGESTION_VIEWED =
                "zen_settings_suggestion_viewed";

        
Backup and restore agent timeout parameters.
These parameters are represented by a comma-delimited key-value list.
The following strings are supported as keys:

    kv_backup_agent_timeout_millis         (long)
    full_backup_agent_timeout_millis       (long)
    shared_backup_agent_timeout_millis     (long)
    restore_agent_timeout_millis           (long)
    restore_agent_finished_timeout_millis  (long)


They map to milliseconds represented as longs.
Ex: "kv_backup_agent_timeout_millis=30000,full_backup_agent_timeout_millis=300000"

@hide
/**
         * Backup and restore agent timeout parameters.
         * These parameters are represented by a comma-delimited key-value list.
         *
         * The following strings are supported as keys:
         * <pre>
         *     kv_backup_agent_timeout_millis         (long)
         *     full_backup_agent_timeout_millis       (long)
         *     shared_backup_agent_timeout_millis     (long)
         *     restore_agent_timeout_millis           (long)
         *     restore_agent_finished_timeout_millis  (long)
         * </pre>
         *
         * They map to milliseconds represented as longs.
         *
         * Ex: "kv_backup_agent_timeout_millis=30000,full_backup_agent_timeout_millis=300000"
         *
         * @hide
         */
        public static final String BACKUP_AGENT_TIMEOUT_PARAMETERS =
                "backup_agent_timeout_parameters";

        
Whether we have enabled swapping on this device. For Wear, default is
enabled.
The value is "1" for enable, "0" for disable.

@hide
/**
         * Whether we have enabled swapping on this device. For Wear, default is
         * enabled.
         *
         * The value is "1" for enable, "0" for disable.
         * @hide
         */
         public static final String SWAP_ENABLED = "swap_enabled";

        
Blacklist of GNSS satellites.
This is a list of integers separated by commas to represent pairs of (constellation,
svid). Thus, the number of integers should be even.
E.g.: "3,0,5,24" denotes (constellation=3, svid=0) and (constellation=5, svid=24) are
blacklisted. Note that svid=0 denotes all svids in the
constellation are blacklisted.

@hide
/**
         * Blacklist of GNSS satellites.
         *
         * This is a list of integers separated by commas to represent pairs of (constellation,
         * svid). Thus, the number of integers should be even.
         *
         * E.g.: "3,0,5,24" denotes (constellation=3, svid=0) and (constellation=5, svid=24) are
         * blacklisted. Note that svid=0 denotes all svids in the
         * constellation are blacklisted.
         *
         * @hide
         */
        public static final String GNSS_SATELLITE_BLACKLIST = "gnss_satellite_blacklist";

        
Duration of updates in millisecond for GNSS location request from HAL to framework.
If zero, the GNSS location request feature is disabled.
The value is a non-negative long.

@hide
/**
         * Duration of updates in millisecond for GNSS location request from HAL to framework.
         *
         * If zero, the GNSS location request feature is disabled.
         *
         * The value is a non-negative long.
         *
         * @hide
         */
        public static final String GNSS_HAL_LOCATION_REQUEST_DURATION_MILLIS =
                "gnss_hal_location_request_duration_millis";
    }

    
User-defined bookmarks and shortcuts.  The target of each bookmark is an
Intent URL, allowing it to be either a web page or a particular
application activity.

@hide
/**
     * User-defined bookmarks and shortcuts.  The target of each bookmark is an
     * Intent URL, allowing it to be either a web page or a particular
     * application activity.
     *
     * @hide
     */
    public static final class Bookmarks implements BaseColumns
    {
        private static final String TAG = "Bookmarks";

        
The content:// style URL for this table

/**
         * The content:// style URL for this table
         */
        public static final Uri CONTENT_URI =
            Uri.parse("content://" + AUTHORITY + "/bookmarks");

        
The row ID.

Type: INTEGER


/**
         * The row ID.
         * <p>Type: INTEGER</p>
         */
        public static final String ID = "_id";

        
Descriptive name of the bookmark that can be displayed to the user. If this is empty, the title should be resolved at display time (use getTitle(Context, Cursor) any time you want to display the title of a bookmark.) 

Type: TEXT



/**
         * Descriptive name of the bookmark that can be displayed to the user.
         * If this is empty, the title should be resolved at display time (use
         * {@link #getTitle(Context, Cursor)} any time you want to display the
         * title of a bookmark.)
         * <P>
         * Type: TEXT
         * </P>
         */
        public static final String TITLE = "title";

        
Arbitrary string (displayed to the user) that allows bookmarks to be organized into categories. There are some special names for standard folders, which all start with '@'. The label displayed for the folder changes with the locale (via getLabelForFolder) but the folder name does not change so you can consistently query for the folder regardless of the current locale. 
Type: TEXT


/**
         * Arbitrary string (displayed to the user) that allows bookmarks to be
         * organized into categories.  There are some special names for
         * standard folders, which all start with '@'.  The label displayed for
         * the folder changes with the locale (via {@link #getLabelForFolder}) but
         * the folder name does not change so you can consistently query for
         * the folder regardless of the current locale.
         *
         * <P>Type: TEXT</P>
         *
         */
        public static final String FOLDER = "folder";

        
The Intent URL of the bookmark, describing what it points to. This value is given to Intent.getIntent to create an Intent that can be launched. 
Type: TEXT


/**
         * The Intent URL of the bookmark, describing what it points to.  This
         * value is given to {@link android.content.Intent#getIntent} to create
         * an Intent that can be launched.
         * <P>Type: TEXT</P>
         */
        public static final String INTENT = "intent";

        
Optional shortcut character associated with this bookmark.

Type: INTEGER


/**
         * Optional shortcut character associated with this bookmark.
         * <P>Type: INTEGER</P>
         */
        public static final String SHORTCUT = "shortcut";

        
The order in which the bookmark should be displayed

Type: INTEGER


/**
         * The order in which the bookmark should be displayed
         * <P>Type: INTEGER</P>
         */
        public static final String ORDERING = "ordering";

        private static final String[] sIntentProjection = { INTENT };
        private static final String[] sShortcutProjection = { ID, SHORTCUT };
        private static final String sShortcutSelection = SHORTCUT + "=?";

        
Convenience function to retrieve the bookmarked Intent for a
particular shortcut key.

Params:
  • cr – The ContentResolver to query.
  • shortcut – The shortcut key.
Returns:Intent The bookmarked URL, or null if there is no bookmark
        matching the given shortcut.
/**
         * Convenience function to retrieve the bookmarked Intent for a
         * particular shortcut key.
         *
         * @param cr The ContentResolver to query.
         * @param shortcut The shortcut key.
         *
         * @return Intent The bookmarked URL, or null if there is no bookmark
         *         matching the given shortcut.
         */
        public static Intent getIntentForShortcut(ContentResolver cr, char shortcut)
        {
            Intent intent = null;

            Cursor c = cr.query(CONTENT_URI,
                    sIntentProjection, sShortcutSelection,
                    new String[] { String.valueOf((int) shortcut) }, ORDERING);
            // Keep trying until we find a valid shortcut
            try {
                while (intent == null && c.moveToNext()) {
                    try {
                        String intentURI = c.getString(c.getColumnIndexOrThrow(INTENT));
                        intent = Intent.parseUri(intentURI, 0);
                    } catch (java.net.URISyntaxException e) {
                        // The stored URL is bad...  ignore it.
                    } catch (IllegalArgumentException e) {
                        // Column not found
                        Log.w(TAG, "Intent column not found", e);
                    }
                }
            } finally {
                if (c != null) c.close();
            }

            return intent;
        }

        
Add a new bookmark to the system.

Params:
  • cr – The ContentResolver to query.
  • intent – The desired target of the bookmark.
  • title – Bookmark title that is shown to the user; null if none
           or it should be resolved to the intent's title.
  • folder – Folder in which to place the bookmark; null if none.
  • shortcut – Shortcut that will invoke the bookmark; 0 if none. If
           this is non-zero and there is an existing bookmark entry
           with this same shortcut, then that existing shortcut is
           cleared (the bookmark is not removed).
Returns:The unique content URL for the new bookmark entry.
/**
         * Add a new bookmark to the system.
         *
         * @param cr The ContentResolver to query.
         * @param intent The desired target of the bookmark.
         * @param title Bookmark title that is shown to the user; null if none
         *            or it should be resolved to the intent's title.
         * @param folder Folder in which to place the bookmark; null if none.
         * @param shortcut Shortcut that will invoke the bookmark; 0 if none. If
         *            this is non-zero and there is an existing bookmark entry
         *            with this same shortcut, then that existing shortcut is
         *            cleared (the bookmark is not removed).
         * @return The unique content URL for the new bookmark entry.
         */
        public static Uri add(ContentResolver cr,
                                           Intent intent,
                                           String title,
                                           String folder,
                                           char shortcut,
                                           int ordering)
        {
            // If a shortcut is supplied, and it is already defined for
            // another bookmark, then remove the old definition.
            if (shortcut != 0) {
                cr.delete(CONTENT_URI, sShortcutSelection,
                        new String[] { String.valueOf((int) shortcut) });
            }

            ContentValues values = new ContentValues();
            if (title != null) values.put(TITLE, title);
            if (folder != null) values.put(FOLDER, folder);
            values.put(INTENT, intent.toUri(0));
            if (shortcut != 0) values.put(SHORTCUT, (int) shortcut);
            values.put(ORDERING, ordering);
            return cr.insert(CONTENT_URI, values);
        }

        
Return the folder name as it should be displayed to the user.  This
takes care of localizing special folders.

Params:
  • r – Resources object for current locale; only need access to
         system resources.
  • folder – The value found in the FOLDER column.
Returns:CharSequence The label for this folder that should be shown
        to the user.
/**
         * Return the folder name as it should be displayed to the user.  This
         * takes care of localizing special folders.
         *
         * @param r Resources object for current locale; only need access to
         *          system resources.
         * @param folder The value found in the {@link #FOLDER} column.
         *
         * @return CharSequence The label for this folder that should be shown
         *         to the user.
         */
        public static CharSequence getLabelForFolder(Resources r, String folder) {
            return folder;
        }

        
Return the title as it should be displayed to the user. This takes
care of localizing bookmarks that point to activities.

Params:
  • context – A context.
  • cursor – A cursor pointing to the row whose title should be returned. The cursor must contain at least the TITLE and INTENT columns.
Returns:A title that is localized and can be displayed to the user,
        or the empty string if one could not be found.
/**
         * Return the title as it should be displayed to the user. This takes
         * care of localizing bookmarks that point to activities.
         *
         * @param context A context.
         * @param cursor A cursor pointing to the row whose title should be
         *        returned. The cursor must contain at least the {@link #TITLE}
         *        and {@link #INTENT} columns.
         * @return A title that is localized and can be displayed to the user,
         *         or the empty string if one could not be found.
         */
        public static CharSequence getTitle(Context context, Cursor cursor) {
            int titleColumn = cursor.getColumnIndex(TITLE);
            int intentColumn = cursor.getColumnIndex(INTENT);
            if (titleColumn == -1 || intentColumn == -1) {
                throw new IllegalArgumentException(
                        "The cursor must contain the TITLE and INTENT columns.");
            }

            String title = cursor.getString(titleColumn);
            if (!TextUtils.isEmpty(title)) {
                return title;
            }

            String intentUri = cursor.getString(intentColumn);
            if (TextUtils.isEmpty(intentUri)) {
                return "";
            }

            Intent intent;
            try {
                intent = Intent.parseUri(intentUri, 0);
            } catch (URISyntaxException e) {
                return "";
            }

            PackageManager packageManager = context.getPackageManager();
            ResolveInfo info = packageManager.resolveActivity(intent, 0);
            return info != null ? info.loadLabel(packageManager) : "";
        }
    }

    
Returns the device ID that we should use when connecting to the mobile gtalk server.
This is a string like "android-0x1242", where the hex string is the Android ID obtained
from the GoogleLoginService.

Params:
  • androidId – The Android ID for this device.
Returns:The device ID that should be used when connecting to the mobile gtalk server.
@hide
/**
     * Returns the device ID that we should use when connecting to the mobile gtalk server.
     * This is a string like "android-0x1242", where the hex string is the Android ID obtained
     * from the GoogleLoginService.
     *
     * @param androidId The Android ID for this device.
     * @return The device ID that should be used when connecting to the mobile gtalk server.
     * @hide
     */
    public static String getGTalkDeviceId(long androidId) {
        return "android-" + Long.toHexString(androidId);
    }

    private static final String[] PM_WRITE_SETTINGS = {
        android.Manifest.permission.WRITE_SETTINGS
    };
    private static final String[] PM_CHANGE_NETWORK_STATE = {
        android.Manifest.permission.CHANGE_NETWORK_STATE,
        android.Manifest.permission.WRITE_SETTINGS
    };
    private static final String[] PM_SYSTEM_ALERT_WINDOW = {
        android.Manifest.permission.SYSTEM_ALERT_WINDOW
    };

    
Performs a strict and comprehensive check of whether a calling package is allowed to
write/modify system settings, as the condition differs for pre-M, M+, and
privileged/preinstalled apps. If the provided uid does not match the
callingPackage, a negative result will be returned.

@hide
/**
     * Performs a strict and comprehensive check of whether a calling package is allowed to
     * write/modify system settings, as the condition differs for pre-M, M+, and
     * privileged/preinstalled apps. If the provided uid does not match the
     * callingPackage, a negative result will be returned.
     * @hide
     */
    public static boolean isCallingPackageAllowedToWriteSettings(Context context, int uid,
            String callingPackage, boolean throwException) {
        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
                PM_WRITE_SETTINGS, false);
    }

    
Performs a strict and comprehensive check of whether a calling package is allowed to
write/modify system settings, as the condition differs for pre-M, M+, and
privileged/preinstalled apps. If the provided uid does not match the
callingPackage, a negative result will be returned. The caller is expected to have
the WRITE_SETTINGS permission declared.
Note: if the check is successful, the operation of this app will be updated to the
current time.

@hide
/**
     * Performs a strict and comprehensive check of whether a calling package is allowed to
     * write/modify system settings, as the condition differs for pre-M, M+, and
     * privileged/preinstalled apps. If the provided uid does not match the
     * callingPackage, a negative result will be returned. The caller is expected to have
     * the WRITE_SETTINGS permission declared.
     *
     * Note: if the check is successful, the operation of this app will be updated to the
     * current time.
     * @hide
     */
    public static boolean checkAndNoteWriteSettingsOperation(Context context, int uid,
            String callingPackage, boolean throwException) {
        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
                PM_WRITE_SETTINGS, true);
    }

    
Performs a strict and comprehensive check of whether a calling package is allowed to
change the state of network, as the condition differs for pre-M, M+, and
privileged/preinstalled apps. The caller is expected to have either the
CHANGE_NETWORK_STATE or the WRITE_SETTINGS permission declared. Either of these
permissions allow changing network state; WRITE_SETTINGS is a runtime permission and
can be revoked, but (except in M, excluding M MRs), CHANGE_NETWORK_STATE is a normal
permission and cannot be revoked. See http://b/23597341
Note: if the check succeeds because the application holds WRITE_SETTINGS, the operation
of this app will be updated to the current time.

@hide
/**
     * Performs a strict and comprehensive check of whether a calling package is allowed to
     * change the state of network, as the condition differs for pre-M, M+, and
     * privileged/preinstalled apps. The caller is expected to have either the
     * CHANGE_NETWORK_STATE or the WRITE_SETTINGS permission declared. Either of these
     * permissions allow changing network state; WRITE_SETTINGS is a runtime permission and
     * can be revoked, but (except in M, excluding M MRs), CHANGE_NETWORK_STATE is a normal
     * permission and cannot be revoked. See http://b/23597341
     *
     * Note: if the check succeeds because the application holds WRITE_SETTINGS, the operation
     * of this app will be updated to the current time.
     * @hide
     */
    public static boolean checkAndNoteChangeNetworkStateOperation(Context context, int uid,
            String callingPackage, boolean throwException) {
        if (context.checkCallingOrSelfPermission(android.Manifest.permission.CHANGE_NETWORK_STATE)
                == PackageManager.PERMISSION_GRANTED) {
            return true;
        }
        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
                callingPackage, throwException, AppOpsManager.OP_WRITE_SETTINGS,
                PM_CHANGE_NETWORK_STATE, true);
    }

    
Performs a strict and comprehensive check of whether a calling package is allowed to
draw on top of other apps, as the conditions differs for pre-M, M+, and
privileged/preinstalled apps. If the provided uid does not match the callingPackage,
a negative result will be returned.

@hide
/**
     * Performs a strict and comprehensive check of whether a calling package is allowed to
     * draw on top of other apps, as the conditions differs for pre-M, M+, and
     * privileged/preinstalled apps. If the provided uid does not match the callingPackage,
     * a negative result will be returned.
     * @hide
     */
    public static boolean isCallingPackageAllowedToDrawOverlays(Context context, int uid,
            String callingPackage, boolean throwException) {
        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
                callingPackage, throwException, AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
                PM_SYSTEM_ALERT_WINDOW, false);
    }

    
Performs a strict and comprehensive check of whether a calling package is allowed to
draw on top of other apps, as the conditions differs for pre-M, M+, and
privileged/preinstalled apps. If the provided uid does not match the callingPackage,
a negative result will be returned.
Note: if the check is successful, the operation of this app will be updated to the
current time.

@hide
/**
     * Performs a strict and comprehensive check of whether a calling package is allowed to
     * draw on top of other apps, as the conditions differs for pre-M, M+, and
     * privileged/preinstalled apps. If the provided uid does not match the callingPackage,
     * a negative result will be returned.
     *
     * Note: if the check is successful, the operation of this app will be updated to the
     * current time.
     * @hide
     */
    public static boolean checkAndNoteDrawOverlaysOperation(Context context, int uid, String
            callingPackage, boolean throwException) {
        return isCallingPackageAllowedToPerformAppOpsProtectedOperation(context, uid,
                callingPackage, throwException, AppOpsManager.OP_SYSTEM_ALERT_WINDOW,
                PM_SYSTEM_ALERT_WINDOW, true);
    }

    
Helper method to perform a general and comprehensive check of whether an operation that is
protected by appops can be performed by a caller or not. e.g. OP_SYSTEM_ALERT_WINDOW and
OP_WRITE_SETTINGS

@hide
/**
     * Helper method to perform a general and comprehensive check of whether an operation that is
     * protected by appops can be performed by a caller or not. e.g. OP_SYSTEM_ALERT_WINDOW and
     * OP_WRITE_SETTINGS
     * @hide
     */
    public static boolean isCallingPackageAllowedToPerformAppOpsProtectedOperation(Context context,
            int uid, String callingPackage, boolean throwException, int appOpsOpCode, String[]
            permissions, boolean makeNote) {
        if (callingPackage == null) {
            return false;
        }

        AppOpsManager appOpsMgr = (AppOpsManager)context.getSystemService(Context.APP_OPS_SERVICE);
        int mode = AppOpsManager.MODE_DEFAULT;
        if (makeNote) {
            mode = appOpsMgr.noteOpNoThrow(appOpsOpCode, uid, callingPackage);
        } else {
            mode = appOpsMgr.checkOpNoThrow(appOpsOpCode, uid, callingPackage);
        }

        switch (mode) {
            case AppOpsManager.MODE_ALLOWED:
                return true;

            case AppOpsManager.MODE_DEFAULT:
                // this is the default operating mode after an app's installation
                // In this case we will check all associated static permission to see
                // if it is granted during install time.
                for (String permission : permissions) {
                    if (context.checkCallingOrSelfPermission(permission) == PackageManager
                            .PERMISSION_GRANTED) {
                        // if either of the permissions are granted, we will allow it
                        return true;
                    }
                }

            default:
                // this is for all other cases trickled down here...
                if (!throwException) {
                    return false;
                }
        }

        // prepare string to throw SecurityException
        StringBuilder exceptionMessage = new StringBuilder();
        exceptionMessage.append(callingPackage);
        exceptionMessage.append(" was not granted ");
        if (permissions.length > 1) {
            exceptionMessage.append(" either of these permissions: ");
        } else {
            exceptionMessage.append(" this permission: ");
        }
        for (int i = 0; i < permissions.length; i++) {
            exceptionMessage.append(permissions[i]);
            exceptionMessage.append((i == permissions.length - 1) ? "." : ", ");
        }

        throw new SecurityException(exceptionMessage.toString());
    }

    
Retrieves a correponding package name for a given uid. It will query all
packages that are associated with the given uid, but it will return only
the zeroth result.
Note: If package could not be found, a null is returned.

@hide
/**
     * Retrieves a correponding package name for a given uid. It will query all
     * packages that are associated with the given uid, but it will return only
     * the zeroth result.
     * Note: If package could not be found, a null is returned.
     * @hide
     */
    public static String getPackageNameForUid(Context context, int uid) {
        String[] packages = context.getPackageManager().getPackagesForUid(uid);
        if (packages == null) {
            return null;
        }
        return packages[0];
    }
}