https://source.android.com/ 
/*
 * Copyright (C) 2010 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.widget;

import android.annotation.AttrRes;
import android.annotation.ColorInt;
import android.annotation.DrawableRes;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.annotation.StyleRes;
import android.annotation.TestApi;
import android.annotation.Widget;
import android.content.Context;
import android.content.res.Configuration;
import android.content.res.TypedArray;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.icu.util.Calendar;
import android.icu.util.TimeZone;
import android.util.AttributeSet;
import android.util.Log;

import com.android.internal.R;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;


This class is a calendar widget for displaying and selecting dates. The
range of dates supported by this calendar is configurable.


The exact appearance and interaction model of this widget may vary between
OS versions and themes (e.g. Holo versus Material), but in general a user
can select a date by tapping on it and can scroll or fling the calendar to a
desired date.

@attrref android.R.styleable#CalendarView_showWeekNumber
@attrref android.R.styleable#CalendarView_firstDayOfWeek
@attrref android.R.styleable#CalendarView_minDate
@attrref android.R.styleable#CalendarView_maxDate
@attrref android.R.styleable#CalendarView_shownWeekCount
@attrref android.R.styleable#CalendarView_selectedWeekBackgroundColor
@attrref android.R.styleable#CalendarView_focusedMonthDateColor
@attrref android.R.styleable#CalendarView_unfocusedMonthDateColor
@attrref android.R.styleable#CalendarView_weekNumberColor
@attrref android.R.styleable#CalendarView_weekSeparatorLineColor
@attrref android.R.styleable#CalendarView_selectedDateVerticalBar
@attrref android.R.styleable#CalendarView_weekDayTextAppearance
@attrref android.R.styleable#CalendarView_dateTextAppearance
/**
 * This class is a calendar widget for displaying and selecting dates. The
 * range of dates supported by this calendar is configurable.
 * <p>
 * The exact appearance and interaction model of this widget may vary between
 * OS versions and themes (e.g. Holo versus Material), but in general a user
 * can select a date by tapping on it and can scroll or fling the calendar to a
 * desired date.
 *
 * @attr ref android.R.styleable#CalendarView_showWeekNumber
 * @attr ref android.R.styleable#CalendarView_firstDayOfWeek
 * @attr ref android.R.styleable#CalendarView_minDate
 * @attr ref android.R.styleable#CalendarView_maxDate
 * @attr ref android.R.styleable#CalendarView_shownWeekCount
 * @attr ref android.R.styleable#CalendarView_selectedWeekBackgroundColor
 * @attr ref android.R.styleable#CalendarView_focusedMonthDateColor
 * @attr ref android.R.styleable#CalendarView_unfocusedMonthDateColor
 * @attr ref android.R.styleable#CalendarView_weekNumberColor
 * @attr ref android.R.styleable#CalendarView_weekSeparatorLineColor
 * @attr ref android.R.styleable#CalendarView_selectedDateVerticalBar
 * @attr ref android.R.styleable#CalendarView_weekDayTextAppearance
 * @attr ref android.R.styleable#CalendarView_dateTextAppearance
 */
@Widget
public class CalendarView extends FrameLayout {
    private static final String LOG_TAG = "CalendarView";

    private static final int MODE_HOLO = 0;
    private static final int MODE_MATERIAL = 1;

    private final CalendarViewDelegate mDelegate;

    
The callback used to indicate the user changes the date.

/**
     * The callback used to indicate the user changes the date.
     */
    public interface OnDateChangeListener {

        
Called upon change of the selected day.

Params:
  • view – The view associated with this listener.
  • year – The year that was set.
  • month – The month that was set [0-11].
  • dayOfMonth – The day of the month that was set.
/**
         * Called upon change of the selected day.
         *
         * @param view The view associated with this listener.
         * @param year The year that was set.
         * @param month The month that was set [0-11].
         * @param dayOfMonth The day of the month that was set.
         */
        void onSelectedDayChange(@NonNull CalendarView view, int year, int month, int dayOfMonth);
    }

    public CalendarView(@NonNull Context context) {
        this(context, null);
    }

    public CalendarView(@NonNull Context context, @Nullable AttributeSet attrs) {
        this(context, attrs, R.attr.calendarViewStyle);
    }

    public CalendarView(@NonNull Context context, @Nullable AttributeSet attrs,
            @AttrRes int defStyleAttr) {
        this(context, attrs, defStyleAttr, 0);
    }

    public CalendarView(@NonNull Context context, @Nullable AttributeSet attrs,
            @AttrRes int defStyleAttr, @StyleRes int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);

        final TypedArray a = context.obtainStyledAttributes(
                attrs, R.styleable.CalendarView, defStyleAttr, defStyleRes);
        final int mode = a.getInt(R.styleable.CalendarView_calendarViewMode, MODE_HOLO);
        a.recycle();

        switch (mode) {
            case MODE_HOLO:
                mDelegate = new CalendarViewLegacyDelegate(
                        this, context, attrs, defStyleAttr, defStyleRes);
                break;
            case MODE_MATERIAL:
                mDelegate = new CalendarViewMaterialDelegate(
                        this, context, attrs, defStyleAttr, defStyleRes);
                break;
            default:
                throw new IllegalArgumentException("invalid calendarViewMode attribute");
        }
    }

    
Sets the number of weeks to be shown.

Params:
  • count – The shown week count.
@attrref android.R.styleable#CalendarView_shownWeekCount
Deprecated:No longer used by Material-style CalendarView.
/**
     * Sets the number of weeks to be shown.
     *
     * @param count The shown week count.
     *
     * @attr ref android.R.styleable#CalendarView_shownWeekCount
     * @deprecated No longer used by Material-style CalendarView.
     */
    @Deprecated
    public void setShownWeekCount(int count) {
        mDelegate.setShownWeekCount(count);
    }

    
Gets the number of weeks to be shown.

Returns:The shown week count.
@attrref android.R.styleable#CalendarView_shownWeekCount
Deprecated:No longer used by Material-style CalendarView.
/**
     * Gets the number of weeks to be shown.
     *
     * @return The shown week count.
     *
     * @attr ref android.R.styleable#CalendarView_shownWeekCount
     * @deprecated No longer used by Material-style CalendarView.
     */
    @Deprecated
    public int getShownWeekCount() {
        return mDelegate.getShownWeekCount();
    }

    
Sets the background color for the selected week.

Params:
  • color – The week background color.
@attrref android.R.styleable#CalendarView_selectedWeekBackgroundColor
Deprecated:No longer used by Material-style CalendarView.
/**
     * Sets the background color for the selected week.
     *
     * @param color The week background color.
     *
     * @attr ref android.R.styleable#CalendarView_selectedWeekBackgroundColor
     * @deprecated No longer used by Material-style CalendarView.
     */
    @Deprecated
    public void setSelectedWeekBackgroundColor(@ColorInt int color) {
        mDelegate.setSelectedWeekBackgroundColor(color);
    }

    
Gets the background color for the selected week.

Returns:The week background color.
@attrref android.R.styleable#CalendarView_selectedWeekBackgroundColor
Deprecated:No longer used by Material-style CalendarView.
/**
     * Gets the background color for the selected week.
     *
     * @return The week background color.
     *
     * @attr ref android.R.styleable#CalendarView_selectedWeekBackgroundColor
     * @deprecated No longer used by Material-style CalendarView.
     */
    @ColorInt
    @Deprecated
    public int getSelectedWeekBackgroundColor() {
        return mDelegate.getSelectedWeekBackgroundColor();
    }

    
Sets the color for the dates of the focused month.

Params:
  • color – The focused month date color.
@attrref android.R.styleable#CalendarView_focusedMonthDateColor
Deprecated:No longer used by Material-style CalendarView.
/**
     * Sets the color for the dates of the focused month.
     *
     * @param color The focused month date color.
     *
     * @attr ref android.R.styleable#CalendarView_focusedMonthDateColor
     * @deprecated No longer used by Material-style CalendarView.
     */
    @Deprecated
    public void setFocusedMonthDateColor(@ColorInt int color) {
        mDelegate.setFocusedMonthDateColor(color);
    }

    
Gets the color for the dates in the focused month.

Returns:The focused month date color.
@attrref android.R.styleable#CalendarView_focusedMonthDateColor
Deprecated:No longer used by Material-style CalendarView.
/**
     * Gets the color for the dates in the focused month.
     *
     * @return The focused month date color.
     *
     * @attr ref android.R.styleable#CalendarView_focusedMonthDateColor
     * @deprecated No longer used by Material-style CalendarView.
     */
    @ColorInt
    @Deprecated
    public int getFocusedMonthDateColor() {
        return mDelegate.getFocusedMonthDateColor();
    }

    
Sets the color for the dates of a not focused month.

Params:
  • color – A not focused month date color.
@attrref android.R.styleable#CalendarView_unfocusedMonthDateColor
Deprecated:No longer used by Material-style CalendarView.
/**
     * Sets the color for the dates of a not focused month.
     *
     * @param color A not focused month date color.
     *
     * @attr ref android.R.styleable#CalendarView_unfocusedMonthDateColor
     * @deprecated No longer used by Material-style CalendarView.
     */
    @Deprecated
    public void setUnfocusedMonthDateColor(@ColorInt int color) {
        mDelegate.setUnfocusedMonthDateColor(color);
    }

    
Gets the color for the dates in a not focused month.

Returns:A not focused month date color.
@attrref android.R.styleable#CalendarView_unfocusedMonthDateColor
Deprecated:No longer used by Material-style CalendarView.
/**
     * Gets the color for the dates in a not focused month.
     *
     * @return A not focused month date color.
     *
     * @attr ref android.R.styleable#CalendarView_unfocusedMonthDateColor
     * @deprecated No longer used by Material-style CalendarView.
     */
    @ColorInt
    @Deprecated
    public int getUnfocusedMonthDateColor() {
        return mDelegate.getUnfocusedMonthDateColor();
    }

    
Sets the color for the week numbers.

Params:
  • color – The week number color.
@attrref android.R.styleable#CalendarView_weekNumberColor
Deprecated:No longer used by Material-style CalendarView.
/**
     * Sets the color for the week numbers.
     *
     * @param color The week number color.
     *
     * @attr ref android.R.styleable#CalendarView_weekNumberColor
     * @deprecated No longer used by Material-style CalendarView.
     */
    @Deprecated
    public void setWeekNumberColor(@ColorInt int color) {
        mDelegate.setWeekNumberColor(color);
    }

    
Gets the color for the week numbers.

Returns:The week number color.
@attrref android.R.styleable#CalendarView_weekNumberColor
Deprecated:No longer used by Material-style CalendarView.
/**
     * Gets the color for the week numbers.
     *
     * @return The week number color.
     *
     * @attr ref android.R.styleable#CalendarView_weekNumberColor
     * @deprecated No longer used by Material-style CalendarView.
     */
    @ColorInt
    @Deprecated
    public int getWeekNumberColor() {
        return mDelegate.getWeekNumberColor();
    }

    
Sets the color for the separator line between weeks.

Params:
  • color – The week separator color.
@attrref android.R.styleable#CalendarView_weekSeparatorLineColor
Deprecated:No longer used by Material-style CalendarView.
/**
     * Sets the color for the separator line between weeks.
     *
     * @param color The week separator color.
     *
     * @attr ref android.R.styleable#CalendarView_weekSeparatorLineColor
     * @deprecated No longer used by Material-style CalendarView.
     */
    @Deprecated
    public void setWeekSeparatorLineColor(@ColorInt int color) {
        mDelegate.setWeekSeparatorLineColor(color);
    }

    
Gets the color for the separator line between weeks.

Returns:The week separator color.
@attrref android.R.styleable#CalendarView_weekSeparatorLineColor
Deprecated:No longer used by Material-style CalendarView.
/**
     * Gets the color for the separator line between weeks.
     *
     * @return The week separator color.
     *
     * @attr ref android.R.styleable#CalendarView_weekSeparatorLineColor
     * @deprecated No longer used by Material-style CalendarView.
     */
    @ColorInt
    @Deprecated
    public int getWeekSeparatorLineColor() {
        return mDelegate.getWeekSeparatorLineColor();
    }

    
Sets the drawable for the vertical bar shown at the beginning and at
the end of the selected date.

Params:
  • resourceId – The vertical bar drawable resource id.
@attrref android.R.styleable#CalendarView_selectedDateVerticalBar
Deprecated:No longer used by Material-style CalendarView.
/**
     * Sets the drawable for the vertical bar shown at the beginning and at
     * the end of the selected date.
     *
     * @param resourceId The vertical bar drawable resource id.
     *
     * @attr ref android.R.styleable#CalendarView_selectedDateVerticalBar
     * @deprecated No longer used by Material-style CalendarView.
     */
    @Deprecated
    public void setSelectedDateVerticalBar(@DrawableRes int resourceId) {
        mDelegate.setSelectedDateVerticalBar(resourceId);
    }

    
Sets the drawable for the vertical bar shown at the beginning and at
the end of the selected date.

Params:
  • drawable – The vertical bar drawable.
@attrref android.R.styleable#CalendarView_selectedDateVerticalBar
Deprecated:No longer used by Material-style CalendarView.
/**
     * Sets the drawable for the vertical bar shown at the beginning and at
     * the end of the selected date.
     *
     * @param drawable The vertical bar drawable.
     *
     * @attr ref android.R.styleable#CalendarView_selectedDateVerticalBar
     * @deprecated No longer used by Material-style CalendarView.
     */
    @Deprecated
    public void setSelectedDateVerticalBar(Drawable drawable) {
        mDelegate.setSelectedDateVerticalBar(drawable);
    }

    
Gets the drawable for the vertical bar shown at the beginning and at
the end of the selected date.

Returns:The vertical bar drawable.
Deprecated:No longer used by Material-style CalendarView.
/**
     * Gets the drawable for the vertical bar shown at the beginning and at
     * the end of the selected date.
     *
     * @return The vertical bar drawable.
     * @deprecated No longer used by Material-style CalendarView.
     */
    @Deprecated
    public Drawable getSelectedDateVerticalBar() {
        return mDelegate.getSelectedDateVerticalBar();
    }

    
Sets the text appearance for the week day abbreviation of the calendar header.

Params:
  • resourceId – The text appearance resource id.
@attrref android.R.styleable#CalendarView_weekDayTextAppearance
/**
     * Sets the text appearance for the week day abbreviation of the calendar header.
     *
     * @param resourceId The text appearance resource id.
     *
     * @attr ref android.R.styleable#CalendarView_weekDayTextAppearance
     */
    public void setWeekDayTextAppearance(@StyleRes int resourceId) {
        mDelegate.setWeekDayTextAppearance(resourceId);
    }

    
Gets the text appearance for the week day abbreviation of the calendar header.

Returns:The text appearance resource id.
@attrref android.R.styleable#CalendarView_weekDayTextAppearance
/**
     * Gets the text appearance for the week day abbreviation of the calendar header.
     *
     * @return The text appearance resource id.
     *
     * @attr ref android.R.styleable#CalendarView_weekDayTextAppearance
     */
    public @StyleRes int getWeekDayTextAppearance() {
        return mDelegate.getWeekDayTextAppearance();
    }

    
Sets the text appearance for the calendar dates.

Params:
  • resourceId – The text appearance resource id.
@attrref android.R.styleable#CalendarView_dateTextAppearance
/**
     * Sets the text appearance for the calendar dates.
     *
     * @param resourceId The text appearance resource id.
     *
     * @attr ref android.R.styleable#CalendarView_dateTextAppearance
     */
    public void setDateTextAppearance(@StyleRes int resourceId) {
        mDelegate.setDateTextAppearance(resourceId);
    }

    
Gets the text appearance for the calendar dates.

Returns:The text appearance resource id.
@attrref android.R.styleable#CalendarView_dateTextAppearance
/**
     * Gets the text appearance for the calendar dates.
     *
     * @return The text appearance resource id.
     *
     * @attr ref android.R.styleable#CalendarView_dateTextAppearance
     */
    public @StyleRes int getDateTextAppearance() {
        return mDelegate.getDateTextAppearance();
    }

    
Gets the minimal date supported by this CalendarView in milliseconds since January 1, 1970 00:00:00 in getDefault.getDefault() time zone. 

Note: The default minimal date is 01/01/1900.



Returns:The minimal supported date.
@attrref android.R.styleable#CalendarView_minDate
/**
     * Gets the minimal date supported by this {@link CalendarView} in milliseconds
     * since January 1, 1970 00:00:00 in {@link TimeZone#getDefault()} time
     * zone.
     * <p>
     * Note: The default minimal date is 01/01/1900.
     * <p>
     *
     * @return The minimal supported date.
     *
     * @attr ref android.R.styleable#CalendarView_minDate
     */
    public long getMinDate() {
        return mDelegate.getMinDate();
    }

    
Sets the minimal date supported by this CalendarView in milliseconds since January 1, 1970 00:00:00 in getDefault.getDefault() time zone. 
Params:
  • minDate – The minimal supported date.
@attrref android.R.styleable#CalendarView_minDate
/**
     * Sets the minimal date supported by this {@link CalendarView} in milliseconds
     * since January 1, 1970 00:00:00 in {@link TimeZone#getDefault()} time
     * zone.
     *
     * @param minDate The minimal supported date.
     *
     * @attr ref android.R.styleable#CalendarView_minDate
     */
    public void setMinDate(long minDate) {
        mDelegate.setMinDate(minDate);
    }

    
Gets the maximal date supported by this CalendarView in milliseconds since January 1, 1970 00:00:00 in getDefault.getDefault() time zone. 

Note: The default maximal date is 01/01/2100.



Returns:The maximal supported date.
@attrref android.R.styleable#CalendarView_maxDate
/**
     * Gets the maximal date supported by this {@link CalendarView} in milliseconds
     * since January 1, 1970 00:00:00 in {@link TimeZone#getDefault()} time
     * zone.
     * <p>
     * Note: The default maximal date is 01/01/2100.
     * <p>
     *
     * @return The maximal supported date.
     *
     * @attr ref android.R.styleable#CalendarView_maxDate
     */
    public long getMaxDate() {
        return mDelegate.getMaxDate();
    }

    
Sets the maximal date supported by this CalendarView in milliseconds since January 1, 1970 00:00:00 in getDefault.getDefault() time zone. 
Params:
  • maxDate – The maximal supported date.
@attrref android.R.styleable#CalendarView_maxDate
/**
     * Sets the maximal date supported by this {@link CalendarView} in milliseconds
     * since January 1, 1970 00:00:00 in {@link TimeZone#getDefault()} time
     * zone.
     *
     * @param maxDate The maximal supported date.
     *
     * @attr ref android.R.styleable#CalendarView_maxDate
     */
    public void setMaxDate(long maxDate) {
        mDelegate.setMaxDate(maxDate);
    }

    
Sets whether to show the week number.

Params:
  • showWeekNumber – True to show the week number.
Deprecated:No longer used by Material-style CalendarView.
@attrref android.R.styleable#CalendarView_showWeekNumber
/**
     * Sets whether to show the week number.
     *
     * @param showWeekNumber True to show the week number.
     * @deprecated No longer used by Material-style CalendarView.
     *
     * @attr ref android.R.styleable#CalendarView_showWeekNumber
     */
    @Deprecated
    public void setShowWeekNumber(boolean showWeekNumber) {
        mDelegate.setShowWeekNumber(showWeekNumber);
    }

    
Gets whether to show the week number.

Returns:True if showing the week number.
Deprecated:No longer used by Material-style CalendarView.
@attrref android.R.styleable#CalendarView_showWeekNumber
/**
     * Gets whether to show the week number.
     *
     * @return True if showing the week number.
     * @deprecated No longer used by Material-style CalendarView.
     *
     * @attr ref android.R.styleable#CalendarView_showWeekNumber
     */
    @Deprecated
    public boolean getShowWeekNumber() {
        return mDelegate.getShowWeekNumber();
    }

    
Gets the first day of week.

See Also:
  • MONDAY.MONDAY
  • TUESDAY.TUESDAY
  • WEDNESDAY.WEDNESDAY
  • THURSDAY.THURSDAY
  • FRIDAY.FRIDAY
  • SATURDAY.SATURDAY
  • SUNDAY.SUNDAY
Returns:The first day of the week conforming to the CalendarView APIs.
@attrref android.R.styleable#CalendarView_firstDayOfWeek
/**
     * Gets the first day of week.
     *
     * @return The first day of the week conforming to the {@link CalendarView}
     *         APIs.
     * @see Calendar#MONDAY
     * @see Calendar#TUESDAY
     * @see Calendar#WEDNESDAY
     * @see Calendar#THURSDAY
     * @see Calendar#FRIDAY
     * @see Calendar#SATURDAY
     * @see Calendar#SUNDAY
     *
     * @attr ref android.R.styleable#CalendarView_firstDayOfWeek
     */
    public int getFirstDayOfWeek() {
        return mDelegate.getFirstDayOfWeek();
    }

    
Sets the first day of week.

Params:
  • firstDayOfWeek – The first day of the week conforming to the CalendarView APIs.
See Also:
  • MONDAY.MONDAY
  • TUESDAY.TUESDAY
  • WEDNESDAY.WEDNESDAY
  • THURSDAY.THURSDAY
  • FRIDAY.FRIDAY
  • SATURDAY.SATURDAY
  • SUNDAY.SUNDAY
@attrref android.R.styleable#CalendarView_firstDayOfWeek
/**
     * Sets the first day of week.
     *
     * @param firstDayOfWeek The first day of the week conforming to the
     *            {@link CalendarView} APIs.
     * @see Calendar#MONDAY
     * @see Calendar#TUESDAY
     * @see Calendar#WEDNESDAY
     * @see Calendar#THURSDAY
     * @see Calendar#FRIDAY
     * @see Calendar#SATURDAY
     * @see Calendar#SUNDAY
     *
     * @attr ref android.R.styleable#CalendarView_firstDayOfWeek
     */
    public void setFirstDayOfWeek(int firstDayOfWeek) {
        mDelegate.setFirstDayOfWeek(firstDayOfWeek);
    }

    
Sets the listener to be notified upon selected date change.

Params:
  • listener – The listener to be notified.
/**
     * Sets the listener to be notified upon selected date change.
     *
     * @param listener The listener to be notified.
     */
    public void setOnDateChangeListener(OnDateChangeListener listener) {
        mDelegate.setOnDateChangeListener(listener);
    }

    
Gets the selected date in milliseconds since January 1, 1970 00:00:00 in getDefault.getDefault() time zone. 
Returns:The selected date.
/**
     * Gets the selected date in milliseconds since January 1, 1970 00:00:00 in
     * {@link TimeZone#getDefault()} time zone.
     *
     * @return The selected date.
     */
    public long getDate() {
        return mDelegate.getDate();
    }

    
Sets the selected date in milliseconds since January 1, 1970 00:00:00 in getDefault.getDefault() time zone. 
Params:
  • date – The selected date.
Throws:
See Also:
/**
     * Sets the selected date in milliseconds since January 1, 1970 00:00:00 in
     * {@link TimeZone#getDefault()} time zone.
     *
     * @param date The selected date.
     *
     * @throws IllegalArgumentException of the provided date is before the
     *        minimal or after the maximal date.
     *
     * @see #setDate(long, boolean, boolean)
     * @see #setMinDate(long)
     * @see #setMaxDate(long)
     */
    public void setDate(long date) {
        mDelegate.setDate(date);
    }

    
Sets the selected date in milliseconds since January 1, 1970 00:00:00 in getDefault.getDefault() time zone. 
Params:
  • date – The date.
  • animate – Whether to animate the scroll to the current date.
  • center – Whether to center the current date even if it is already visible.
Throws:
See Also:
/**
     * Sets the selected date in milliseconds since January 1, 1970 00:00:00 in
     * {@link TimeZone#getDefault()} time zone.
     *
     * @param date The date.
     * @param animate Whether to animate the scroll to the current date.
     * @param center Whether to center the current date even if it is already visible.
     *
     * @throws IllegalArgumentException of the provided date is before the
     *        minimal or after the maximal date.
     *
     * @see #setMinDate(long)
     * @see #setMaxDate(long)
     */
    public void setDate(long date, boolean animate, boolean center) {
        mDelegate.setDate(date, animate, center);
    }

    
Retrieves the screen bounds for the specific date in the coordinate system of this view. If the passed date is being currently displayed, this method returns true and the caller can query the fields of the passed Rect object. Otherwise the method returns false and does not touch the passed Rect object. 
@hide
/**
     * Retrieves the screen bounds for the specific date in the coordinate system of this
     * view. If the passed date is being currently displayed, this method returns true and
     * the caller can query the fields of the passed {@link Rect} object. Otherwise the
     * method returns false and does not touch the passed {@link Rect} object.
     *
     * @hide
     */
    @TestApi
    public boolean getBoundsForDate(long date, Rect outBounds) {
        return mDelegate.getBoundsForDate(date, outBounds);
    }

    @Override
    protected void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        mDelegate.onConfigurationChanged(newConfig);
    }

    @Override
    public CharSequence getAccessibilityClassName() {
        return CalendarView.class.getName();
    }

    
A delegate interface that defined the public API of the CalendarView. Allows different
CalendarView implementations. This would need to be implemented by the CalendarView delegates
for the real behavior.

/**
     * A delegate interface that defined the public API of the CalendarView. Allows different
     * CalendarView implementations. This would need to be implemented by the CalendarView delegates
     * for the real behavior.
     */
    private interface CalendarViewDelegate {
        void setShownWeekCount(int count);
        int getShownWeekCount();

        void setSelectedWeekBackgroundColor(@ColorInt int color);
        @ColorInt int getSelectedWeekBackgroundColor();

        void setFocusedMonthDateColor(@ColorInt int color);
        @ColorInt int getFocusedMonthDateColor();

        void setUnfocusedMonthDateColor(@ColorInt int color);
        @ColorInt int getUnfocusedMonthDateColor();

        void setWeekNumberColor(@ColorInt int color);
        @ColorInt int getWeekNumberColor();

        void setWeekSeparatorLineColor(@ColorInt int color);
        @ColorInt int getWeekSeparatorLineColor();

        void setSelectedDateVerticalBar(@DrawableRes int resourceId);
        void setSelectedDateVerticalBar(Drawable drawable);
        Drawable getSelectedDateVerticalBar();

        void setWeekDayTextAppearance(@StyleRes int resourceId);
        @StyleRes int getWeekDayTextAppearance();

        void setDateTextAppearance(@StyleRes int resourceId);
        @StyleRes int getDateTextAppearance();

        void setMinDate(long minDate);
        long getMinDate();

        void setMaxDate(long maxDate);
        long getMaxDate();

        void setShowWeekNumber(boolean showWeekNumber);
        boolean getShowWeekNumber();

        void setFirstDayOfWeek(int firstDayOfWeek);
        int getFirstDayOfWeek();

        void setDate(long date);
        void setDate(long date, boolean animate, boolean center);
        long getDate();

        boolean getBoundsForDate(long date, Rect outBounds);

        void setOnDateChangeListener(OnDateChangeListener listener);

        void onConfigurationChanged(Configuration newConfig);
    }

    
An abstract class which can be used as a start for CalendarView implementations

/**
     * An abstract class which can be used as a start for CalendarView implementations
     */
    abstract static class AbstractCalendarViewDelegate implements CalendarViewDelegate {
        
The default minimal date. 
/** The default minimal date. */
        protected static final String DEFAULT_MIN_DATE = "01/01/1900";

        
The default maximal date. 
/** The default maximal date. */
        protected static final String DEFAULT_MAX_DATE = "01/01/2100";

        protected CalendarView mDelegator;
        protected Context mContext;
        protected Locale mCurrentLocale;

        AbstractCalendarViewDelegate(CalendarView delegator, Context context) {
            mDelegator = delegator;
            mContext = context;

            // Initialization based on locale
            setCurrentLocale(Locale.getDefault());
        }

        protected void setCurrentLocale(Locale locale) {
            if (locale.equals(mCurrentLocale)) {
                return;
            }
            mCurrentLocale = locale;
        }

        @Override
        public void setShownWeekCount(int count) {
            // Deprecated.
        }

        @Override
        public int getShownWeekCount() {
            // Deprecated.
            return 0;
        }

        @Override
        public void setSelectedWeekBackgroundColor(@ColorInt int color) {
            // Deprecated.
        }

        @ColorInt
        @Override
        public int getSelectedWeekBackgroundColor() {
            return 0;
        }

        @Override
        public void setFocusedMonthDateColor(@ColorInt int color) {
            // Deprecated.
        }

        @ColorInt
        @Override
        public int getFocusedMonthDateColor() {
            return 0;
        }

        @Override
        public void setUnfocusedMonthDateColor(@ColorInt int color) {
            // Deprecated.
        }

        @ColorInt
        @Override
        public int getUnfocusedMonthDateColor() {
            return 0;
        }

        @Override
        public void setWeekNumberColor(@ColorInt int color) {
            // Deprecated.
        }

        @ColorInt
        @Override
        public int getWeekNumberColor() {
            // Deprecated.
            return 0;
        }

        @Override
        public void setWeekSeparatorLineColor(@ColorInt int color) {
            // Deprecated.
        }

        @ColorInt
        @Override
        public int getWeekSeparatorLineColor() {
            // Deprecated.
            return 0;
        }

        @Override
        public void setSelectedDateVerticalBar(@DrawableRes int resId) {
            // Deprecated.
        }

        @Override
        public void setSelectedDateVerticalBar(Drawable drawable) {
            // Deprecated.
        }

        @Override
        public Drawable getSelectedDateVerticalBar() {
            // Deprecated.
            return null;
        }

        @Override
        public void setShowWeekNumber(boolean showWeekNumber) {
            // Deprecated.
        }

        @Override
        public boolean getShowWeekNumber() {
            // Deprecated.
            return false;
        }

        @Override
        public void onConfigurationChanged(Configuration newConfig) {
            // Nothing to do here, configuration changes are already propagated
            // by ViewGroup.
        }
    }

    
String for parsing dates. 
/** String for parsing dates. */
    private static final String DATE_FORMAT = "MM/dd/yyyy";

    
Date format for parsing dates. 
/** Date format for parsing dates. */
    private static final DateFormat DATE_FORMATTER = new SimpleDateFormat(DATE_FORMAT);

    
Utility method for the date format used by CalendarView's min/max date.

@hideUse only as directed. For internal use only.
/**
     * Utility method for the date format used by CalendarView's min/max date.
     *
     * @hide Use only as directed. For internal use only.
     */
    public static boolean parseDate(String date, Calendar outDate) {
        if (date == null || date.isEmpty()) {
            return false;
        }

        try {
            final Date parsedDate = DATE_FORMATTER.parse(date);
            outDate.setTime(parsedDate);
            return true;
        } catch (ParseException e) {
            Log.w(LOG_TAG, "Date: " + date + " not in format: " + DATE_FORMAT);
            return false;
        }
    }
}