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.content;

import android.app.ActivityManager;
import android.app.ActivityThread;
import android.app.IActivityManager;
import android.app.QueuedWork;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;
import android.util.Slog;


Base class for code that receives and handles broadcast intents sent by Context.sendBroadcast(Intent). 
You can either dynamically register an instance of this class with Context.registerReceiver() or statically declare an implementation with the <receiver> tag in your AndroidManifest.xml.



Developer Guides


For more information about using BroadcastReceiver, read the
Broadcasts developer guide.


/**
 * Base class for code that receives and handles broadcast intents sent by
 * {@link android.content.Context#sendBroadcast(Intent)}.
 *
 * <p>You can either dynamically register an instance of this class with
 * {@link Context#registerReceiver Context.registerReceiver()}
 * or statically declare an implementation with the
 * {@link android.R.styleable#AndroidManifestReceiver &lt;receiver&gt;}
 * tag in your <code>AndroidManifest.xml</code>.
 *
 * <div class="special reference">
 * <h3>Developer Guides</h3>
 * <p>For more information about using BroadcastReceiver, read the
 * <a href="{@docRoot}guide/components/broadcasts.html">Broadcasts</a> developer guide.</p></div>
 *
 */
public abstract class BroadcastReceiver {
    private PendingResult mPendingResult;
    private boolean mDebugUnregister;

    
State for a result that is pending for a broadcast receiver. Returned by goAsync() while in BroadcastReceiver.onReceive(). This allows you to return from onReceive() without having the broadcast terminate; you must call finish() once you are done with the broadcast. This allows you to process the broadcast off of the main thread of your app. 
Note on threading: the state inside of this class is not itself thread-safe, however you can use it from any thread if you properly sure that you do not have races. Typically this means you will hand the entire object to another thread, which will be solely responsible for setting any results and finally calling finish(). 
/**
     * State for a result that is pending for a broadcast receiver.  Returned
     * by {@link BroadcastReceiver#goAsync() goAsync()}
     * while in {@link BroadcastReceiver#onReceive BroadcastReceiver.onReceive()}.
     * This allows you to return from onReceive() without having the broadcast
     * terminate; you must call {@link #finish()} once you are done with the
     * broadcast.  This allows you to process the broadcast off of the main
     * thread of your app.
     *
     * <p>Note on threading: the state inside of this class is not itself
     * thread-safe, however you can use it from any thread if you properly
     * sure that you do not have races.  Typically this means you will hand
     * the entire object to another thread, which will be solely responsible
     * for setting any results and finally calling {@link #finish()}.
     */
    public static class PendingResult {
        
@hide
/** @hide */
        public static final int TYPE_COMPONENT = 0;
        
@hide
/** @hide */
        public static final int TYPE_REGISTERED = 1;
        
@hide
/** @hide */
        public static final int TYPE_UNREGISTERED = 2;

        final int mType;
        final boolean mOrderedHint;
        final boolean mInitialStickyHint;
        final IBinder mToken;
        final int mSendingUser;
        final int mFlags;

        int mResultCode;
        String mResultData;
        Bundle mResultExtras;
        boolean mAbortBroadcast;
        boolean mFinished;

        
@hide
/** @hide */
        public PendingResult(int resultCode, String resultData, Bundle resultExtras, int type,
                boolean ordered, boolean sticky, IBinder token, int userId, int flags) {
            mResultCode = resultCode;
            mResultData = resultData;
            mResultExtras = resultExtras;
            mType = type;
            mOrderedHint = ordered;
            mInitialStickyHint = sticky;
            mToken = token;
            mSendingUser = userId;
            mFlags = flags;
        }

        
Version of 
BroadcastReceiver.setResultCode(int) for asynchronous broadcast handling. 
/**
         * Version of {@link BroadcastReceiver#setResultCode(int)
         * BroadcastReceiver.setResultCode(int)} for
         * asynchronous broadcast handling.
         */
        public final void setResultCode(int code) {
            checkSynchronousHint();
            mResultCode = code;
        }

        
Version of 
BroadcastReceiver.getResultCode() for asynchronous broadcast handling. 
/**
         * Version of {@link BroadcastReceiver#getResultCode()
         * BroadcastReceiver.getResultCode()} for
         * asynchronous broadcast handling.
         */
        public final int getResultCode() {
            return mResultCode;
        }

        
Version of 
BroadcastReceiver.setResultData(String) for asynchronous broadcast handling. 
/**
         * Version of {@link BroadcastReceiver#setResultData(String)
         * BroadcastReceiver.setResultData(String)} for
         * asynchronous broadcast handling.
         */
        public final void setResultData(String data) {
            checkSynchronousHint();
            mResultData = data;
        }

        
Version of 
BroadcastReceiver.getResultData() for asynchronous broadcast handling. 
/**
         * Version of {@link BroadcastReceiver#getResultData()
         * BroadcastReceiver.getResultData()} for
         * asynchronous broadcast handling.
         */
        public final String getResultData() {
            return mResultData;
        }

        
Version of 
BroadcastReceiver.setResultExtras(Bundle) for asynchronous broadcast handling. 
/**
         * Version of {@link BroadcastReceiver#setResultExtras(Bundle)
         * BroadcastReceiver.setResultExtras(Bundle)} for
         * asynchronous broadcast handling.
         */
        public final void setResultExtras(Bundle extras) {
            checkSynchronousHint();
            mResultExtras = extras;
        }

        
Version of 
BroadcastReceiver.getResultExtras(boolean) for asynchronous broadcast handling. 
/**
         * Version of {@link BroadcastReceiver#getResultExtras(boolean)
         * BroadcastReceiver.getResultExtras(boolean)} for
         * asynchronous broadcast handling.
         */
        public final Bundle getResultExtras(boolean makeMap) {
            Bundle e = mResultExtras;
            if (!makeMap) return e;
            if (e == null) mResultExtras = e = new Bundle();
            return e;
        }

        
Version of 
BroadcastReceiver.setResult(int, String, Bundle) for asynchronous broadcast handling. 
/**
         * Version of {@link BroadcastReceiver#setResult(int, String, Bundle)
         * BroadcastReceiver.setResult(int, String, Bundle)} for
         * asynchronous broadcast handling.
         */
        public final void setResult(int code, String data, Bundle extras) {
            checkSynchronousHint();
            mResultCode = code;
            mResultData = data;
            mResultExtras = extras;
        }

        
Version of 
BroadcastReceiver.getAbortBroadcast() for asynchronous broadcast handling. 
/**
         * Version of {@link BroadcastReceiver#getAbortBroadcast()
         * BroadcastReceiver.getAbortBroadcast()} for
         * asynchronous broadcast handling.
         */
        public final boolean getAbortBroadcast() {
            return mAbortBroadcast;
        }

        
Version of 
BroadcastReceiver.abortBroadcast() for asynchronous broadcast handling. 
/**
         * Version of {@link BroadcastReceiver#abortBroadcast()
         * BroadcastReceiver.abortBroadcast()} for
         * asynchronous broadcast handling.
         */
        public final void abortBroadcast() {
            checkSynchronousHint();
            mAbortBroadcast = true;
        }

        
Version of 
BroadcastReceiver.clearAbortBroadcast() for asynchronous broadcast handling. 
/**
         * Version of {@link BroadcastReceiver#clearAbortBroadcast()
         * BroadcastReceiver.clearAbortBroadcast()} for
         * asynchronous broadcast handling.
         */
        public final void clearAbortBroadcast() {
            mAbortBroadcast = false;
        }

        
Finish the broadcast.  The current result will be sent and the
next broadcast will proceed.

/**
         * Finish the broadcast.  The current result will be sent and the
         * next broadcast will proceed.
         */
        public final void finish() {
            if (mType == TYPE_COMPONENT) {
                final IActivityManager mgr = ActivityManager.getService();
                if (QueuedWork.hasPendingWork()) {
                    // If this is a broadcast component, we need to make sure any
                    // queued work is complete before telling AM we are done, so
                    // we don't have our process killed before that.  We now know
                    // there is pending work; put another piece of work at the end
                    // of the list to finish the broadcast, so we don't block this
                    // thread (which may be the main thread) to have it finished.
                    //
                    // Note that we don't need to use QueuedWork.addFinisher() with the
                    // runnable, since we know the AM is waiting for us until the
                    // executor gets to it.
                    QueuedWork.queue(new Runnable() {
                        @Override public void run() {
                            if (ActivityThread.DEBUG_BROADCAST) Slog.i(ActivityThread.TAG,
                                    "Finishing broadcast after work to component " + mToken);
                            sendFinished(mgr);
                        }
                    }, false);
                } else {
                    if (ActivityThread.DEBUG_BROADCAST) Slog.i(ActivityThread.TAG,
                            "Finishing broadcast to component " + mToken);
                    sendFinished(mgr);
                }
            } else if (mOrderedHint && mType != TYPE_UNREGISTERED) {
                if (ActivityThread.DEBUG_BROADCAST) Slog.i(ActivityThread.TAG,
                        "Finishing broadcast to " + mToken);
                final IActivityManager mgr = ActivityManager.getService();
                sendFinished(mgr);
            }
        }

        
@hide
/** @hide */
        public void setExtrasClassLoader(ClassLoader cl) {
            if (mResultExtras != null) {
                mResultExtras.setClassLoader(cl);
            }
        }

        
@hide
/** @hide */
        public void sendFinished(IActivityManager am) {
            synchronized (this) {
                if (mFinished) {
                    throw new IllegalStateException("Broadcast already finished");
                }
                mFinished = true;

                try {
                    if (mResultExtras != null) {
                        mResultExtras.setAllowFds(false);
                    }
                    if (mOrderedHint) {
                        am.finishReceiver(mToken, mResultCode, mResultData, mResultExtras,
                                mAbortBroadcast, mFlags);
                    } else {
                        // This broadcast was sent to a component; it is not ordered,
                        // but we still need to tell the activity manager we are done.
                        am.finishReceiver(mToken, 0, null, null, false, mFlags);
                    }
                } catch (RemoteException ex) {
                }
            }
        }

        
@hide
/** @hide */
        public int getSendingUserId() {
            return mSendingUser;
        }

        void checkSynchronousHint() {
            // Note that we don't assert when receiving the initial sticky value,
            // since that may have come from an ordered broadcast.  We'll catch
            // them later when the real broadcast happens again.
            if (mOrderedHint || mInitialStickyHint) {
                return;
            }
            RuntimeException e = new RuntimeException(
                    "BroadcastReceiver trying to return result during a non-ordered broadcast");
            e.fillInStackTrace();
            Log.e("BroadcastReceiver", e.getMessage(), e);
        }
    }

    public BroadcastReceiver() {
    }

    
This method is called when the BroadcastReceiver is receiving an Intent broadcast. During this time you can use the other methods on BroadcastReceiver to view/modify the current result values. This method is always called within the main thread of its process, unless you explicitly asked for it to be scheduled on a different thread using Context.registerReceiver(BroadcastReceiver, IntentFilter, String, Handler). When it runs on the main thread you should never perform long-running operations in it (there is a timeout of 10 seconds that the system allows before considering the receiver to be blocked and a candidate to be killed). You cannot launch a popup dialog in your implementation of onReceive(). 
If this BroadcastReceiver was launched through a <receiver> tag,
then the object is no longer alive after returning from this
function. This means you should not perform any operations that return a result to you asynchronously. If you need to perform any follow up background work, schedule a JobService with JobScheduler. If you wish to interact with a service that is already running and previously bound using bindService(), you can use peekService. 
The Intent filters used in Context.registerReceiver and in application manifests are not guaranteed to be exclusive. They are hints to the operating system about how to find suitable recipients. It is possible for senders to force delivery to specific recipients, bypassing filter resolution. For this reason, onReceive() implementations should respond only to known actions, ignoring any unexpected Intents that they may receive. 
Params:
  • context – The Context in which the receiver is running.
  • intent – The Intent being received.
/**
     * This method is called when the BroadcastReceiver is receiving an Intent
     * broadcast.  During this time you can use the other methods on
     * BroadcastReceiver to view/modify the current result values.  This method
     * is always called within the main thread of its process, unless you
     * explicitly asked for it to be scheduled on a different thread using
     * {@link android.content.Context#registerReceiver(BroadcastReceiver,
     * IntentFilter, String, android.os.Handler)}. When it runs on the main
     * thread you should
     * never perform long-running operations in it (there is a timeout of
     * 10 seconds that the system allows before considering the receiver to
     * be blocked and a candidate to be killed). You cannot launch a popup dialog
     * in your implementation of onReceive().
     *
     * <p><b>If this BroadcastReceiver was launched through a &lt;receiver&gt; tag,
     * then the object is no longer alive after returning from this
     * function.</b> This means you should not perform any operations that
     * return a result to you asynchronously. If you need to perform any follow up
     * background work, schedule a {@link android.app.job.JobService} with
     * {@link android.app.job.JobScheduler}.
     *
     * If you wish to interact with a service that is already running and previously
     * bound using {@link android.content.Context#bindService(Intent, ServiceConnection, int) bindService()},
     * you can use {@link #peekService}.
     *
     * <p>The Intent filters used in {@link android.content.Context#registerReceiver}
     * and in application manifests are <em>not</em> guaranteed to be exclusive. They
     * are hints to the operating system about how to find suitable recipients. It is
     * possible for senders to force delivery to specific recipients, bypassing filter
     * resolution.  For this reason, {@link #onReceive(Context, Intent) onReceive()}
     * implementations should respond only to known actions, ignoring any unexpected
     * Intents that they may receive.
     *
     * @param context The Context in which the receiver is running.
     * @param intent The Intent being received.
     */
    public abstract void onReceive(Context context, Intent intent);

    
This can be called by an application in onReceive to allow it to keep the broadcast active after returning from that function. This does not change the expectation of being relatively
responsive to the broadcast, but does allow
the implementation to move work related to it over to another thread
to avoid glitching the main UI thread due to disk IO.

As a general rule, broadcast receivers are allowed to run for up to 10 seconds before they system will consider them non-responsive and ANR the app. Since these usually execute on the app's main thread, they are already bound by the ~5 second time limit of various operations that can happen there (not to mention just avoiding UI jank), so the receive limit is generally not of concern. However, once you use goAsync, though able to be off the main thread, the broadcast execution limit still applies, and that includes the time spent between calling this method and ultimately PendingResult.finish().


If you are taking advantage of this method to have more time to execute, it is useful to know that the available time can be longer in certain situations. In particular, if the broadcast you are receiving is not a foreground broadcast (that is, the sender has not used Intent.FLAG_RECEIVER_FOREGROUND), then more time is allowed for the receivers to run, allowing them to execute for 30 seconds or even a bit more. This is something that receivers should rarely take advantage of (long work should be punted to another system facility such as JobScheduler, Service, or see especially JobIntentService), but can be useful in certain rare cases where it is necessary to do some work as soon as the broadcast is delivered. Keep in mind that the work you do here will block further broadcasts until it completes, so taking advantage of this at all excessively can be counter-productive and cause later events to be received more slowly.


Returns:Returns a PendingResult representing the result of the active broadcast. The BroadcastRecord itself is no longer active; all data and other interaction must go through PendingResult APIs. The PendingResult.finish() method must be called once processing of the broadcast is done.
/**
     * This can be called by an application in {@link #onReceive} to allow
     * it to keep the broadcast active after returning from that function.
     * This does <em>not</em> change the expectation of being relatively
     * responsive to the broadcast, but does allow
     * the implementation to move work related to it over to another thread
     * to avoid glitching the main UI thread due to disk IO.
     *
     * <p>As a general rule, broadcast receivers are allowed to run for up to 10 seconds
     * before they system will consider them non-responsive and ANR the app.  Since these usually
     * execute on the app's main thread, they are already bound by the ~5 second time limit
     * of various operations that can happen there (not to mention just avoiding UI jank), so
     * the receive limit is generally not of concern.  However, once you use {@code goAsync}, though
     * able to be off the main thread, the broadcast execution limit still applies, and that
     * includes the time spent between calling this method and ultimately
     * {@link PendingResult#finish() PendingResult.finish()}.</p>
     *
     * <p>If you are taking advantage of this method to have more time to execute, it is useful
     * to know that the available time can be longer in certain situations.  In particular, if
     * the broadcast you are receiving is not a foreground broadcast (that is, the sender has not
     * used {@link Intent#FLAG_RECEIVER_FOREGROUND}), then more time is allowed for the receivers
     * to run, allowing them to execute for 30 seconds or even a bit more.  This is something that
     * receivers should rarely take advantage of (long work should be punted to another system
     * facility such as {@link android.app.job.JobScheduler}, {@link android.app.Service}, or
     * see especially {@link android.support.v4.app.JobIntentService}), but can be useful in
     * certain rare cases where it is necessary to do some work as soon as the broadcast is
     * delivered.  Keep in mind that the work you do here will block further broadcasts until
     * it completes, so taking advantage of this at all excessively can be counter-productive
     * and cause later events to be received more slowly.</p>
     *
     * @return Returns a {@link PendingResult} representing the result of
     * the active broadcast.  The BroadcastRecord itself is no longer active;
     * all data and other interaction must go through {@link PendingResult}
     * APIs.  The {@link PendingResult#finish PendingResult.finish()} method
     * must be called once processing of the broadcast is done.
     */
    public final PendingResult goAsync() {
        PendingResult res = mPendingResult;
        mPendingResult = null;
        return res;
    }

    
Provide a binder to an already-bound service. This method is synchronous and will not start the target service if it is not present, so it is safe to call from onReceive. For peekService() to return a non null IBinder interface the service must have published it before. In other words some component must have called Context.bindService(Intent, ServiceConnection, int) on it. 
Params:
/**
     * Provide a binder to an already-bound service.  This method is synchronous
     * and will not start the target service if it is not present, so it is safe
     * to call from {@link #onReceive}.
     *
     * For peekService() to return a non null {@link android.os.IBinder} interface
     * the service must have published it before. In other words some component
     * must have called {@link android.content.Context#bindService(Intent, ServiceConnection, int)} on it.
     *
     * @param myContext The Context that had been passed to {@link #onReceive(Context, Intent)}
     * @param service Identifies the already-bound service you wish to use. See
     * {@link android.content.Context#bindService(Intent, ServiceConnection, int)}
     * for more information.
     */
    public IBinder peekService(Context myContext, Intent service) {
        IActivityManager am = ActivityManager.getService();
        IBinder binder = null;
        try {
            service.prepareToLeaveProcess(myContext);
            binder = am.peekService(service, service.resolveTypeIfNeeded(
                    myContext.getContentResolver()), myContext.getOpPackageName());
        } catch (RemoteException e) {
        }
        return binder;
    }

    
Change the current result code of this broadcast; only works with broadcasts sent through 
Context.sendOrderedBroadcast. Often uses the Activity Activity.RESULT_CANCELED and Activity.RESULT_OK constants, though the actual meaning of this value is ultimately up to the broadcaster. 
This method does not work with non-ordered broadcasts such as those sent with 
Context.sendBroadcast


Params:
  • code – The new result code.
See Also:
/**
     * Change the current result code of this broadcast; only works with
     * broadcasts sent through
     * {@link Context#sendOrderedBroadcast(Intent, String)
     * Context.sendOrderedBroadcast}.  Often uses the
     * Activity {@link android.app.Activity#RESULT_CANCELED} and
     * {@link android.app.Activity#RESULT_OK} constants, though the
     * actual meaning of this value is ultimately up to the broadcaster.
     *
     * <p class="note">This method does not work with non-ordered broadcasts such
     * as those sent with {@link Context#sendBroadcast(Intent)
     * Context.sendBroadcast}</p>
     *
     * @param code The new result code.
     *
     * @see #setResult(int, String, Bundle)
     */
    public final void setResultCode(int code) {
        checkSynchronousHint();
        mPendingResult.mResultCode = code;
    }

    
Retrieve the current result code, as set by the previous receiver.

Returns:int The current result code.
/**
     * Retrieve the current result code, as set by the previous receiver.
     *
     * @return int The current result code.
     */
    public final int getResultCode() {
        return mPendingResult != null ? mPendingResult.mResultCode : 0;
    }

    
Change the current result data of this broadcast; only works with broadcasts sent through 
Context.sendOrderedBroadcast. This is an arbitrary string whose interpretation is up to the broadcaster. 
This method does not work with non-ordered broadcasts such as those sent with 
Context.sendBroadcast


Params:
  • data – The new result data; may be null.
See Also:
/**
     * Change the current result data of this broadcast; only works with
     * broadcasts sent through
     * {@link Context#sendOrderedBroadcast(Intent, String)
     * Context.sendOrderedBroadcast}.  This is an arbitrary
     * string whose interpretation is up to the broadcaster.
     *
     * <p><strong>This method does not work with non-ordered broadcasts such
     * as those sent with {@link Context#sendBroadcast(Intent)
     * Context.sendBroadcast}</strong></p>
     *
     * @param data The new result data; may be null.
     *
     * @see #setResult(int, String, Bundle)
     */
    public final void setResultData(String data) {
        checkSynchronousHint();
        mPendingResult.mResultData = data;
    }

    
Retrieve the current result data, as set by the previous receiver.
Often this is null.

Returns:String The current result data; may be null.
/**
     * Retrieve the current result data, as set by the previous receiver.
     * Often this is null.
     *
     * @return String The current result data; may be null.
     */
    public final String getResultData() {
        return mPendingResult != null ? mPendingResult.mResultData : null;
    }

    
Change the current result extras of this broadcast; only works with broadcasts sent through 
Context.sendOrderedBroadcast. This is a Bundle holding arbitrary data, whose interpretation is up to the broadcaster. Can be set to null. Calling this method completely replaces the current map (if any). 
This method does not work with non-ordered broadcasts such as those sent with 
Context.sendBroadcast


Params:
  • extras – The new extra data map; may be null.
See Also:
/**
     * Change the current result extras of this broadcast; only works with
     * broadcasts sent through
     * {@link Context#sendOrderedBroadcast(Intent, String)
     * Context.sendOrderedBroadcast}.  This is a Bundle
     * holding arbitrary data, whose interpretation is up to the
     * broadcaster.  Can be set to null.  Calling this method completely
     * replaces the current map (if any).
     *
     * <p><strong>This method does not work with non-ordered broadcasts such
     * as those sent with {@link Context#sendBroadcast(Intent)
     * Context.sendBroadcast}</strong></p>
     *
     * @param extras The new extra data map; may be null.
     *
     * @see #setResult(int, String, Bundle)
     */
    public final void setResultExtras(Bundle extras) {
        checkSynchronousHint();
        mPendingResult.mResultExtras = extras;
    }

    
Retrieve the current result extra data, as set by the previous receiver.
Any changes you make to the returned Map will be propagated to the next
receiver.

Params:
  • makeMap – If true then a new empty Map will be made for you if the
               current Map is null; if false you should be prepared to
               receive a null Map.
Returns:Map The current extras map.
/**
     * Retrieve the current result extra data, as set by the previous receiver.
     * Any changes you make to the returned Map will be propagated to the next
     * receiver.
     *
     * @param makeMap If true then a new empty Map will be made for you if the
     *                current Map is null; if false you should be prepared to
     *                receive a null Map.
     *
     * @return Map The current extras map.
     */
    public final Bundle getResultExtras(boolean makeMap) {
        if (mPendingResult == null) {
            return null;
        }
        Bundle e = mPendingResult.mResultExtras;
        if (!makeMap) return e;
        if (e == null) mPendingResult.mResultExtras = e = new Bundle();
        return e;
    }

    
Change all of the result data returned from this broadcasts; only works with broadcasts sent through 
Context.sendOrderedBroadcast. All current result data is replaced by the value given to this method. 
This method does not work with non-ordered broadcasts such as those sent with 
Context.sendBroadcast


Params:
  • code – The new result code. Often uses the Activity Activity.RESULT_CANCELED and Activity.RESULT_OK constants, though the actual meaning of this value is ultimately up to the broadcaster.
  • data – The new result data.  This is an arbitrary
string whose interpretation is up to the broadcaster; may be null.
  • extras – The new extra data map.  This is a Bundle
holding arbitrary data, whose interpretation is up to the
broadcaster.  Can be set to null.  This completely
replaces the current map (if any).
/**
     * Change all of the result data returned from this broadcasts; only works
     * with broadcasts sent through
     * {@link Context#sendOrderedBroadcast(Intent, String)
     * Context.sendOrderedBroadcast}.  All current result data is replaced
     * by the value given to this method.
     *
     * <p><strong>This method does not work with non-ordered broadcasts such
     * as those sent with {@link Context#sendBroadcast(Intent)
     * Context.sendBroadcast}</strong></p>
     *
     * @param code The new result code.  Often uses the
     * Activity {@link android.app.Activity#RESULT_CANCELED} and
     * {@link android.app.Activity#RESULT_OK} constants, though the
     * actual meaning of this value is ultimately up to the broadcaster.
     * @param data The new result data.  This is an arbitrary
     * string whose interpretation is up to the broadcaster; may be null.
     * @param extras The new extra data map.  This is a Bundle
     * holding arbitrary data, whose interpretation is up to the
     * broadcaster.  Can be set to null.  This completely
     * replaces the current map (if any).
     */
    public final void setResult(int code, String data, Bundle extras) {
        checkSynchronousHint();
        mPendingResult.mResultCode = code;
        mPendingResult.mResultData = data;
        mPendingResult.mResultExtras = extras;
    }

    
Returns the flag indicating whether or not this receiver should
abort the current broadcast.

Returns:True if the broadcast should be aborted.
/**
     * Returns the flag indicating whether or not this receiver should
     * abort the current broadcast.
     *
     * @return True if the broadcast should be aborted.
     */
    public final boolean getAbortBroadcast() {
        return mPendingResult != null ? mPendingResult.mAbortBroadcast : false;
    }

    
Sets the flag indicating that this receiver should abort the current broadcast; only works with broadcasts sent through 
Context.sendOrderedBroadcast. This will prevent any other broadcast receivers from receiving the broadcast. It will still call onReceive of the BroadcastReceiver that the caller of 
Context.sendOrderedBroadcast passed in. 
This method does not work with non-ordered broadcasts such as those sent with 
Context.sendBroadcast


/**
     * Sets the flag indicating that this receiver should abort the
     * current broadcast; only works with broadcasts sent through
     * {@link Context#sendOrderedBroadcast(Intent, String)
     * Context.sendOrderedBroadcast}.  This will prevent
     * any other broadcast receivers from receiving the broadcast. It will still
     * call {@link #onReceive} of the BroadcastReceiver that the caller of
     * {@link Context#sendOrderedBroadcast(Intent, String)
     * Context.sendOrderedBroadcast} passed in.
     *
     * <p><strong>This method does not work with non-ordered broadcasts such
     * as those sent with {@link Context#sendBroadcast(Intent)
     * Context.sendBroadcast}</strong></p>
     */
    public final void abortBroadcast() {
        checkSynchronousHint();
        mPendingResult.mAbortBroadcast = true;
    }

    
Clears the flag indicating that this receiver should abort the current
broadcast.

/**
     * Clears the flag indicating that this receiver should abort the current
     * broadcast.
     */
    public final void clearAbortBroadcast() {
        if (mPendingResult != null) {
            mPendingResult.mAbortBroadcast = false;
        }
    }

    
Returns true if the receiver is currently processing an ordered
broadcast.

/**
     * Returns true if the receiver is currently processing an ordered
     * broadcast.
     */
    public final boolean isOrderedBroadcast() {
        return mPendingResult != null ? mPendingResult.mOrderedHint : false;
    }

    
Returns true if the receiver is currently processing the initial
value of a sticky broadcast -- that is, the value that was last
broadcast and is currently held in the sticky cache, so this is
not directly the result of a broadcast right now.

/**
     * Returns true if the receiver is currently processing the initial
     * value of a sticky broadcast -- that is, the value that was last
     * broadcast and is currently held in the sticky cache, so this is
     * not directly the result of a broadcast right now.
     */
    public final boolean isInitialStickyBroadcast() {
        return mPendingResult != null ? mPendingResult.mInitialStickyHint : false;
    }

    
For internal use, sets the hint about whether this BroadcastReceiver is
running in ordered mode.

/**
     * For internal use, sets the hint about whether this BroadcastReceiver is
     * running in ordered mode.
     */
    public final void setOrderedHint(boolean isOrdered) {
        // Accidentally left in the SDK.
    }

    
For internal use to set the result data that is active. @hide

/**
     * For internal use to set the result data that is active. @hide
     */
    public final void setPendingResult(PendingResult result) {
        mPendingResult = result;
    }

    
For internal use to set the result data that is active. @hide

/**
     * For internal use to set the result data that is active. @hide
     */
    public final PendingResult getPendingResult() {
        return mPendingResult;
    }

    
@hide
/** @hide */
    public int getSendingUserId() {
        return mPendingResult.mSendingUser;
    }

    
Control inclusion of debugging help for mismatched calls to 
Context.registerReceiver(). If called with true, before given to registerReceiver(), then the callstack of the following 
Context.unregisterReceiver() call is retained, to be printed if a later incorrect unregister call is made. Note that doing this requires retaining information about the BroadcastReceiver for the lifetime of the app, resulting in a leak -- this should only be used for debugging. 
/**
     * Control inclusion of debugging help for mismatched
     * calls to {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)
     * Context.registerReceiver()}.
     * If called with true, before given to registerReceiver(), then the
     * callstack of the following {@link Context#unregisterReceiver(BroadcastReceiver)
     * Context.unregisterReceiver()} call is retained, to be printed if a later
     * incorrect unregister call is made.  Note that doing this requires retaining
     * information about the BroadcastReceiver for the lifetime of the app,
     * resulting in a leak -- this should only be used for debugging.
     */
    public final void setDebugUnregister(boolean debug) {
        mDebugUnregister = debug;
    }

    
Return the last value given to setDebugUnregister. 
/**
     * Return the last value given to {@link #setDebugUnregister}.
     */
    public final boolean getDebugUnregister() {
        return mDebugUnregister;
    }

    void checkSynchronousHint() {
        if (mPendingResult == null) {
            throw new IllegalStateException("Call while result is not pending");
        }

        // Note that we don't assert when receiving the initial sticky value,
        // since that may have come from an ordered broadcast.  We'll catch
        // them later when the real broadcast happens again.
        if (mPendingResult.mOrderedHint || mPendingResult.mInitialStickyHint) {
            return;
        }
        RuntimeException e = new RuntimeException(
                "BroadcastReceiver trying to return result during a non-ordered broadcast");
        e.fillInStackTrace();
        Log.e("BroadcastReceiver", e.getMessage(), e);
    }
}