实例介绍
【实例简介】
【实例截图】
【实例截图】
【核心代码】
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1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 | /* * 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 * * * 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 net.simonvt.calendarview;import android.app.Service;import android.content.Context;import android.content.res.Configuration;import android.content.res.TypedArray;import android.database.DataSetObserver;import android.graphics.Canvas;import android.graphics.Paint;import android.graphics.Paint.Align;import android.graphics.Paint.Style;import android.graphics.Rect;import android.graphics.drawable.Drawable;import android.os.Build;import android.text.TextUtils;import android.text.format.DateUtils;import android.util.AttributeSet;import android.util.DisplayMetrics;import android.util.Log;import android.util.TypedValue;import android.view.GestureDetector;import android.view.LayoutInflater;import android.view.MotionEvent;import android.view.View;import android.view.ViewGroup;import android.view.accessibility.AccessibilityEvent;import android.view.accessibility.AccessibilityNodeInfo;import android.widget.AbsListView;import android.widget.AbsListView.OnScrollListener;import android.widget.BaseAdapter;import android.widget.FrameLayout;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;import java.text.ParseException;import java.text.SimpleDateFormat;import java.util.Calendar;import java.util.Locale;import java.util.TimeZone;/** * This class is a calendar widget for displaying and selecting dates. The range * of dates supported by this calendar is configurable. A user can select a date * by taping on it and can scroll and 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 *///@Widgetpublic class CalendarView extends FrameLayout { /** * Tag for logging. */ private static final String LOG_TAG = CalendarView.class.getSimpleName(); /** * Default value whether to show week number. */ private static final boolean DEFAULT_SHOW_WEEK_NUMBER = true; /** * The number of milliseconds in a day.e */ private static final long MILLIS_IN_DAY = 86400000L; /** * The number of day in a week. */ private static final int DAYS_PER_WEEK = 7; /** * The number of milliseconds in a week. */ private static final long MILLIS_IN_WEEK = DAYS_PER_WEEK * MILLIS_IN_DAY; /** * Affects when the month selection will change while scrolling upe */ private static final int SCROLL_HYST_WEEKS = 2; /** * How long the GoTo fling animation should last. */ private static final int GOTO_SCROLL_DURATION = 1000; /** * The duration of the adjustment upon a user scroll in milliseconds. */ private static final int ADJUSTMENT_SCROLL_DURATION = 500; /** * How long to wait after receiving an onScrollStateChanged notification * before acting on it. */ private static final int SCROLL_CHANGE_DELAY = 40; /** * String for parsing dates. */ private static final String DATE_FORMAT = "MM/dd/yyyy"; /** * The default minimal date. */ private static final String DEFAULT_MIN_DATE = "01/01/1900"; /** * The default maximal date. */ private static final String DEFAULT_MAX_DATE = "01/01/2100"; private static final int DEFAULT_SHOWN_WEEK_COUNT = 6; private static final int DEFAULT_DATE_TEXT_SIZE = 14; private static final int UNSCALED_SELECTED_DATE_VERTICAL_BAR_WIDTH = 6; private static final int UNSCALED_WEEK_MIN_VISIBLE_HEIGHT = 12; private static final int UNSCALED_LIST_SCROLL_TOP_OFFSET = 2; private static final int UNSCALED_BOTTOM_BUFFER = 20; private static final int UNSCALED_WEEK_SEPARATOR_LINE_WIDTH = 1; private static final int DEFAULT_WEEK_DAY_TEXT_APPEARANCE_RES_ID = -1; private final int mWeekSeperatorLineWidth; private int mDateTextSize; private Drawable mSelectedDateVerticalBar; private final int mSelectedDateVerticalBarWidth; private int mSelectedWeekBackgroundColor; private int mFocusedMonthDateColor; private int mUnfocusedMonthDateColor; private int mWeekSeparatorLineColor; private int mWeekNumberColor; private int mWeekDayTextAppearanceResId; private int mDateTextAppearanceResId; /** * The top offset of the weeks list. */ private int mListScrollTopOffset = 2; /** * The visible height of a week view. */ private int mWeekMinVisibleHeight = 12; /** * The visible height of a week view. */ private int mBottomBuffer = 20; /** * The number of shown weeks. */ private int mShownWeekCount; /** * Flag whether to show the week number. */ private boolean mShowWeekNumber; /** * The number of day per week to be shown. */ private int mDaysPerWeek = 7; /** * The friction of the week list while flinging. */ private float mFriction = .05f; /** * Scale for adjusting velocity of the week list while flinging. */ private float mVelocityScale = 0.333f; /** * The adapter for the weeks list. */ private WeeksAdapter mAdapter; /** * The weeks list. */ private ListView mListView; /** * The name of the month to display. */ private TextView mMonthName; /** * The header with week day names. */ private ViewGroup mDayNamesHeader; /** * Cached labels for the week names header. */ private String[] mDayLabels; /** * The first day of the week. */ private int mFirstDayOfWeek; /** * Which month should be displayed/highlighted [0-11]. */ private int mCurrentMonthDisplayed; /** * Used for tracking during a scroll. */ private long mPreviousScrollPosition; /** * Used for tracking which direction the view is scrolling. */ private boolean mIsScrollingUp = false; /** * The previous scroll state of the weeks ListView. */ private int mPreviousScrollState = OnScrollListener.SCROLL_STATE_IDLE; /** * The current scroll state of the weeks ListView. */ private int mCurrentScrollState = OnScrollListener.SCROLL_STATE_IDLE; /** * Listener for changes in the selected day. */ private OnDateChangeListener mOnDateChangeListener; /** * Command for adjusting the position after a scroll/fling. */ private ScrollStateRunnable mScrollStateChangedRunnable = new ScrollStateRunnable(); /** * Temporary instance to avoid multiple instantiations. */ private Calendar mTempDate; /** * The first day of the focused month. */ private Calendar mFirstDayOfMonth; /** * The start date of the range supported by this picker. */ private Calendar mMinDate; /** * The end date of the range supported by this picker. */ private Calendar mMaxDate; /** * Date format for parsing dates. */ private final java.text.DateFormat mDateFormat = new SimpleDateFormat(DATE_FORMAT); /** * The current locale. */ private Locale mCurrentLocale; /** * The callback used to indicate the user changes the date. */ public interface OnDateChangeListener { /** * 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. */ public void onSelectedDayChange(CalendarView view, int year, int month, int dayOfMonth); } public CalendarView(Context context) { this(context, null); } public CalendarView(Context context, AttributeSet attrs) { this(context, attrs, 0); } public CalendarView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, 0); // initialization based on locale setCurrentLocale(Locale.getDefault()); TypedArray attributesArray = context.obtainStyledAttributes(attrs, R.styleable.CalendarView, R.attr.calendarViewStyle, 0); mShowWeekNumber = attributesArray.getBoolean(R.styleable.CalendarView_cv_showWeekNumber, DEFAULT_SHOW_WEEK_NUMBER); mFirstDayOfWeek = attributesArray.getInt(R.styleable.CalendarView_cv_firstDayOfWeek, //LocaleData.get(Locale.getDefault()).firstDayOfWeek); Calendar.getInstance().getFirstDayOfWeek()); String minDate = attributesArray.getString(R.styleable.CalendarView_cv_minDate); if (TextUtils.isEmpty(minDate) || !parseDate(minDate, mMinDate)) { parseDate(DEFAULT_MIN_DATE, mMinDate); } String maxDate = attributesArray.getString(R.styleable.CalendarView_cv_maxDate); if (TextUtils.isEmpty(maxDate) || !parseDate(maxDate, mMaxDate)) { parseDate(DEFAULT_MAX_DATE, mMaxDate); } if (mMaxDate.before(mMinDate)) { throw new IllegalArgumentException("Max date cannot be before min date."); } mShownWeekCount = attributesArray.getInt(R.styleable.CalendarView_cv_shownWeekCount, DEFAULT_SHOWN_WEEK_COUNT); mSelectedWeekBackgroundColor = attributesArray.getColor( R.styleable.CalendarView_cv_selectedWeekBackgroundColor, 0); mFocusedMonthDateColor = attributesArray.getColor( R.styleable.CalendarView_cv_focusedMonthDateColor, 0); mUnfocusedMonthDateColor = attributesArray.getColor( R.styleable.CalendarView_cv_unfocusedMonthDateColor, 0); mWeekSeparatorLineColor = attributesArray.getColor( R.styleable.CalendarView_cv_weekSeparatorLineColor, 0); mWeekNumberColor = attributesArray.getColor(R.styleable.CalendarView_cv_weekNumberColor, 0); mSelectedDateVerticalBar = attributesArray.getDrawable( R.styleable.CalendarView_cv_selectedDateVerticalBar); mDateTextAppearanceResId = attributesArray.getResourceId( R.styleable.CalendarView_cv_dateTextAppearance, android.R.style.TextAppearance_Small); updateDateTextSize(); mWeekDayTextAppearanceResId = attributesArray.getResourceId( R.styleable.CalendarView_cv_weekDayTextAppearance, DEFAULT_WEEK_DAY_TEXT_APPEARANCE_RES_ID); final Drawable horizontalDivider = attributesArray.getDrawable(R.styleable.CalendarView_cv_dividerHorizontal); attributesArray.recycle(); DisplayMetrics displayMetrics = getResources().getDisplayMetrics(); mWeekMinVisibleHeight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, UNSCALED_WEEK_MIN_VISIBLE_HEIGHT, displayMetrics); mListScrollTopOffset = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, UNSCALED_LIST_SCROLL_TOP_OFFSET, displayMetrics); mBottomBuffer = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, UNSCALED_BOTTOM_BUFFER, displayMetrics); mSelectedDateVerticalBarWidth = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, UNSCALED_SELECTED_DATE_VERTICAL_BAR_WIDTH, displayMetrics); mWeekSeperatorLineWidth = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, UNSCALED_WEEK_SEPARATOR_LINE_WIDTH, displayMetrics); LayoutInflater layoutInflater = (LayoutInflater) context .getSystemService(Service.LAYOUT_INFLATER_SERVICE); View content = layoutInflater.inflate(R.layout.calendar_view, null, false); addView(content); mListView = (ListView) findViewById(android.R.id.list); mDayNamesHeader = (ViewGroup) content.findViewById(R.id.cv_day_names); mMonthName = (TextView) content.findViewById(R.id.cv_month_name); ((ImageView) findViewById(R.id.cv_divider)).setImageDrawable(horizontalDivider); setUpHeader(); setUpListView(); setUpAdapter(); // go to today or whichever is close to today min or max date mTempDate.setTimeInMillis(System.currentTimeMillis()); if (mTempDate.before(mMinDate)) { goTo(mMinDate, false, true, true); } else if (mMaxDate.before(mTempDate)) { goTo(mMaxDate, false, true, true); } else { goTo(mTempDate, false, true, true); } invalidate(); } /** * Sets the number of weeks to be shown. * * @param count The shown week count. * * @attr ref android.R.styleable#CalendarView_shownWeekCount */ public void setShownWeekCount(int count) { if (mShownWeekCount != count) { mShownWeekCount = count; invalidate(); } } /** * Gets the number of weeks to be shown. * * @return The shown week count. * * @attr ref android.R.styleable#CalendarView_shownWeekCount */ public int getShownWeekCount() { return mShownWeekCount; } /** * Sets the background color for the selected week. * * @param color The week background color. * * @attr ref android.R.styleable#CalendarView_selectedWeekBackgroundColor */ public void setSelectedWeekBackgroundColor(int color) { if (mSelectedWeekBackgroundColor != color) { mSelectedWeekBackgroundColor = color; final int childCount = mListView.getChildCount(); for (int i = 0; i < childCount; i ) { WeekView weekView = (WeekView) mListView.getChildAt(i); if (weekView.mHasSelectedDay) { weekView.invalidate(); } } } } /** * Gets the background color for the selected week. * * @return The week background color. * * @attr ref android.R.styleable#CalendarView_selectedWeekBackgroundColor */ public int getSelectedWeekBackgroundColor() { return mSelectedWeekBackgroundColor; } /** * Sets the color for the dates of the focused month. * * @param color The focused month date color. * * @attr ref android.R.styleable#CalendarView_focusedMonthDateColor */ public void setFocusedMonthDateColor(int color) { if (mFocusedMonthDateColor != color) { mFocusedMonthDateColor = color; final int childCount = mListView.getChildCount(); for (int i = 0; i < childCount; i ) { WeekView weekView = (WeekView) mListView.getChildAt(i); if (weekView.mHasFocusedDay) { weekView.invalidate(); } } } } /** * Gets the color for the dates in the focused month. * * @return The focused month date color. * * @attr ref android.R.styleable#CalendarView_focusedMonthDateColor */ public int getFocusedMonthDateColor() { return mFocusedMonthDateColor; } /** * 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 */ public void setUnfocusedMonthDateColor(int color) { if (mUnfocusedMonthDateColor != color) { mUnfocusedMonthDateColor = color; final int childCount = mListView.getChildCount(); for (int i = 0; i < childCount; i ) { WeekView weekView = (WeekView) mListView.getChildAt(i); if (weekView.mHasUnfocusedDay) { weekView.invalidate(); } } } } /** * 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 */ public int getUnfocusedMonthDateColor() { return mFocusedMonthDateColor; } /** * Sets the color for the week numbers. * * @param color The week number color. * * @attr ref android.R.styleable#CalendarView_weekNumberColor */ public void setWeekNumberColor(int color) { if (mWeekNumberColor != color) { mWeekNumberColor = color; if (mShowWeekNumber) { invalidateAllWeekViews(); } } } /** * Gets the color for the week numbers. * * @return The week number color. * * @attr ref android.R.styleable#CalendarView_weekNumberColor */ public int getWeekNumberColor() { return mWeekNumberColor; } /** * Sets the color for the separator line between weeks. * * @param color The week separator color. * * @attr ref android.R.styleable#CalendarView_weekSeparatorLineColor */ public void setWeekSeparatorLineColor(int color) { if (mWeekSeparatorLineColor != color) { mWeekSeparatorLineColor = color; invalidateAllWeekViews(); } } /** * Gets the color for the separator line between weeks. * * @return The week separator color. * * @attr ref android.R.styleable#CalendarView_weekSeparatorLineColor */ public int getWeekSeparatorLineColor() { return mWeekSeparatorLineColor; } /** * 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 */ public void setSelectedDateVerticalBar(int resourceId) { Drawable drawable = getResources().getDrawable(resourceId); setSelectedDateVerticalBar(drawable); } /** * 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 */ public void setSelectedDateVerticalBar(Drawable drawable) { if (mSelectedDateVerticalBar != drawable) { mSelectedDateVerticalBar = drawable; final int childCount = mListView.getChildCount(); for (int i = 0; i < childCount; i ) { WeekView weekView = (WeekView) mListView.getChildAt(i); if (weekView.mHasSelectedDay) { weekView.invalidate(); } } } } /** * Gets the drawable for the vertical bar shown at the beginning and at * the end of the selected date. * * @return The vertical bar drawable. */ public Drawable getSelectedDateVerticalBar() { return mSelectedDateVerticalBar; } /** * 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(int resourceId) { if (mWeekDayTextAppearanceResId != resourceId) { mWeekDayTextAppearanceResId = resourceId; setUpHeader(); } } /** * 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 int getWeekDayTextAppearance() { return mWeekDayTextAppearanceResId; } /** * 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(int resourceId) { if (mDateTextAppearanceResId != resourceId) { mDateTextAppearanceResId = resourceId; updateDateTextSize(); invalidateAllWeekViews(); } } /** * Gets the text appearance for the calendar dates. * * @return The text appearance resource id. * * @attr ref android.R.styleable#CalendarView_dateTextAppearance */ public int getDateTextAppearance() { return mDateTextAppearanceResId; } @Override public void setEnabled(boolean enabled) { mListView.setEnabled(enabled); } @Override public boolean isEnabled() { return mListView.isEnabled(); } @Override protected void onConfigurationChanged(Configuration newConfig) { super.onConfigurationChanged(newConfig); setCurrentLocale(newConfig.locale); } @Override public void onInitializeAccessibilityEvent(AccessibilityEvent event) { super.onInitializeAccessibilityEvent(event); event.setClassName(CalendarView.class.getName()); } @Override public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { super.onInitializeAccessibilityNodeInfo(info); info.setClassName(CalendarView.class.getName()); } /** * 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 mMinDate.getTimeInMillis(); } /** * 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) { mTempDate.setTimeInMillis(minDate); if (isSameDate(mTempDate, mMinDate)) { return; } mMinDate.setTimeInMillis(minDate); // make sure the current date is not earlier than // the new min date since the latter is used for // calculating the indices in the adapter thus // avoiding out of bounds error Calendar date = mAdapter.mSelectedDate; if (date.before(mMinDate)) { mAdapter.setSelectedDay(mMinDate); } // reinitialize the adapter since its range depends on min date mAdapter.init(); if (date.before(mMinDate)) { setDate(mTempDate.getTimeInMillis()); } else { // we go to the current date to force the ListView to query its // adapter for the shown views since we have changed the adapter // range and the base from which the later calculates item indices // note that calling setDate will not work since the date is the same goTo(date, false, true, false); } } /** * 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 mMaxDate.getTimeInMillis(); } /** * 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) { mTempDate.setTimeInMillis(maxDate); if (isSameDate(mTempDate, mMaxDate)) { return; } mMaxDate.setTimeInMillis(maxDate); // reinitialize the adapter since its range depends on max date mAdapter.init(); Calendar date = mAdapter.mSelectedDate; if (date.after(mMaxDate)) { setDate(mMaxDate.getTimeInMillis()); } else { // we go to the current date to force the ListView to query its // adapter for the shown views since we have changed the adapter // range and the base from which the later calculates item indices // note that calling setDate will not work since the date is the same goTo(date, false, true, false); } } /** * Sets whether to show the week number. * * @param showWeekNumber True to show the week number. * * @attr ref android.R.styleable#CalendarView_showWeekNumber */ public void setShowWeekNumber(boolean showWeekNumber) { if (mShowWeekNumber == showWeekNumber) { return; } mShowWeekNumber = showWeekNumber; mAdapter.notifyDataSetChanged(); setUpHeader(); } /** * Gets whether to show the week number. * * @return True if showing the week number. * * @attr ref android.R.styleable#CalendarView_showWeekNumber */ public boolean getShowWeekNumber() { return mShowWeekNumber; } /** * 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 mFirstDayOfWeek; } /** * 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) { if (mFirstDayOfWeek == firstDayOfWeek) { return; } mFirstDayOfWeek = firstDayOfWeek; mAdapter.init(); mAdapter.notifyDataSetChanged(); setUpHeader(); } /** * Sets the listener to be notified upon selected date change. * * @param listener The listener to be notified. */ public void setOnDateChangeListener(OnDateChangeListener listener) { mOnDateChangeListener = listener; } /** * 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 mAdapter.mSelectedDate.getTimeInMillis(); } /** * 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) { setDate(date, false, false); } /** * 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) { mTempDate.setTimeInMillis(date); if (isSameDate(mTempDate, mAdapter.mSelectedDate)) { return; } goTo(mTempDate, animate, true, center); } private void updateDateTextSize() { TypedArray dateTextAppearance = getContext().obtainStyledAttributes( mDateTextAppearanceResId, R.styleable.TextAppearanceCompatStyleable); mDateTextSize = dateTextAppearance.getDimensionPixelSize( R.styleable.TextAppearanceCompatStyleable_android_textSize, DEFAULT_DATE_TEXT_SIZE); dateTextAppearance.recycle(); } /** * Invalidates all week views. */ private void invalidateAllWeekViews() { final int childCount = mListView.getChildCount(); for (int i = 0; i < childCount; i ) { View view = mListView.getChildAt(i); view.invalidate(); } } /** * Sets the current locale. * * @param locale The current locale. */ private void setCurrentLocale(Locale locale) { if (locale.equals(mCurrentLocale)) { return; } mCurrentLocale = locale; mTempDate = getCalendarForLocale(mTempDate, locale); mFirstDayOfMonth = getCalendarForLocale(mFirstDayOfMonth, locale); mMinDate = getCalendarForLocale(mMinDate, locale); mMaxDate = getCalendarForLocale(mMaxDate, locale); } /** * Gets a calendar for locale bootstrapped with the value of a given calendar. * * @param oldCalendar The old calendar. * @param locale The locale. */ private Calendar getCalendarForLocale(Calendar oldCalendar, Locale locale) { if (oldCalendar == null) { return Calendar.getInstance(locale); } else { final long currentTimeMillis = oldCalendar.getTimeInMillis(); Calendar newCalendar = Calendar.getInstance(locale); newCalendar.setTimeInMillis(currentTimeMillis); return newCalendar; } } /** * @return True if the <code>firstDate</code> is the same as the <code> * secondDate</code>. */ private boolean isSameDate(Calendar firstDate, Calendar secondDate) { return (firstDate.get(Calendar.DAY_OF_YEAR) == secondDate.get(Calendar.DAY_OF_YEAR) && firstDate.get(Calendar.YEAR) == secondDate.get(Calendar.YEAR)); } /** * Creates a new adapter if necessary and sets up its parameters. */ private void setUpAdapter() { if (mAdapter == null) { mAdapter = new WeeksAdapter(getContext()); mAdapter.registerDataSetObserver(new DataSetObserver() { @Override public void onChanged() { if (mOnDateChangeListener != null) { Calendar selectedDay = mAdapter.getSelectedDay(); mOnDateChangeListener.onSelectedDayChange(CalendarView.this, selectedDay.get(Calendar.YEAR), selectedDay.get(Calendar.MONTH), selectedDay.get(Calendar.DAY_OF_MONTH)); } } }); mListView.setAdapter(mAdapter); } // refresh the view with the new parameters mAdapter.notifyDataSetChanged(); } /** * Sets up the strings to be used by the header. */ private void setUpHeader() { mDayLabels = new String[mDaysPerWeek]; for (int i = mFirstDayOfWeek, count = mFirstDayOfWeek mDaysPerWeek; i < count; i ) { int calendarDay = (i > Calendar.SATURDAY) ? i - Calendar.SATURDAY : i; mDayLabels[i - mFirstDayOfWeek] = DateUtils.getDayOfWeekString(calendarDay, DateUtils.LENGTH_SHORTEST); } TextView label = (TextView) mDayNamesHeader.getChildAt(0); if (mShowWeekNumber) { label.setVisibility(View.VISIBLE); } else { label.setVisibility(View.GONE); } for (int i = 1, count = mDayNamesHeader.getChildCount(); i < count; i ) { label = (TextView) mDayNamesHeader.getChildAt(i); if (mWeekDayTextAppearanceResId > -1) { label.setTextAppearance(getContext(), mWeekDayTextAppearanceResId); } if (i < mDaysPerWeek 1) { label.setText(mDayLabels[i - 1]); label.setVisibility(View.VISIBLE); } else { label.setVisibility(View.GONE); } } mDayNamesHeader.invalidate(); } /** * Sets all the required fields for the list view. */ private void setUpListView() { // Configure the listview mListView.setDivider(null); mListView.setItemsCanFocus(true); mListView.setVerticalScrollBarEnabled(false); mListView.setOnScrollListener(new OnScrollListener() { public void onScrollStateChanged(AbsListView view, int scrollState) { CalendarView.this.onScrollStateChanged(view, scrollState); } public void onScroll( AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { CalendarView.this.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount); } }); // Make the scrolling behavior nicer if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { mListView.setFriction(mFriction); mListView.setVelocityScale(mVelocityScale); } } /** * This moves to the specified time in the view. If the time is not already * in range it will move the list so that the first of the month containing * the time is at the top of the view. If the new time is already in view * the list will not be scrolled unless forceScroll is true. This time may * optionally be highlighted as selected as well. * * @param date The time to move to. * @param animate Whether to scroll to the given time or just redraw at the * new location. * @param setSelected Whether to set the given time as selected. * @param forceScroll Whether to recenter even if the time is already * visible. * * @throws IllegalArgumentException of the provided date is before the * range start of after the range end. */ private void goTo(Calendar date, boolean animate, boolean setSelected, boolean forceScroll) { if (date.before(mMinDate) || date.after(mMaxDate)) { throw new IllegalArgumentException("Time not between " mMinDate.getTime() " and " mMaxDate.getTime()); } // Find the first and last entirely visible weeks int firstFullyVisiblePosition = mListView.getFirstVisiblePosition(); View firstChild = mListView.getChildAt(0); if (firstChild != null && firstChild.getTop() < 0) { firstFullyVisiblePosition ; } int lastFullyVisiblePosition = firstFullyVisiblePosition mShownWeekCount - 1; if (firstChild != null && firstChild.getTop() > mBottomBuffer) { lastFullyVisiblePosition--; } if (setSelected) { mAdapter.setSelectedDay(date); } // Get the week we're going to int position = getWeeksSinceMinDate(date); // Check if the selected day is now outside of our visible range // and if so scroll to the month that contains it if (position < firstFullyVisiblePosition || position > lastFullyVisiblePosition || forceScroll) { mFirstDayOfMonth.setTimeInMillis(date.getTimeInMillis()); mFirstDayOfMonth.set(Calendar.DAY_OF_MONTH, 1); setMonthDisplayed(mFirstDayOfMonth); // the earliest time we can scroll to is the min date if (mFirstDayOfMonth.before(mMinDate)) { position = 0; } else { position = getWeeksSinceMinDate(mFirstDayOfMonth); } mPreviousScrollState = OnScrollListener.SCROLL_STATE_FLING; if (animate) { mListView.smoothScrollToPositionFromTop(position, mListScrollTopOffset, GOTO_SCROLL_DURATION); } else { mListView.setSelectionFromTop(position, mListScrollTopOffset); // Perform any after scroll operations that are needed onScrollStateChanged(mListView, OnScrollListener.SCROLL_STATE_IDLE); } } else if (setSelected) { // Otherwise just set the selection setMonthDisplayed(date); } } /** * Parses the given <code>date</code> and in case of success sets * the result to the <code>outDate</code>. * * @return True if the date was parsed. */ private boolean parseDate(String date, Calendar outDate) { try { outDate.setTime(mDateFormat.parse(date)); return true; } catch (ParseException e) { Log.w(LOG_TAG, "Date: " date " not in format: " DATE_FORMAT); return false; } } /** * Called when a <code>view</code> transitions to a new <code>scrollState * </code>. */ private void onScrollStateChanged(AbsListView view, int scrollState) { mScrollStateChangedRunnable.doScrollStateChange(view, scrollState); } /** * Updates the title and selected month if the <code>view</code> has moved to a new * month. */ private void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { WeekView child = (WeekView) view.getChildAt(0); if (child == null) { return; } // Figure out where we are long currScroll = view.getFirstVisiblePosition() * child.getHeight() - child.getBottom(); // If we have moved since our last call update the direction if (currScroll < mPreviousScrollPosition) { mIsScrollingUp = true; } else if (currScroll > mPreviousScrollPosition) { mIsScrollingUp = false; } else { return; } // Use some hysteresis for checking which month to highlight. This // causes the month to transition when two full weeks of a month are // visible when scrolling up, and when the first day in a month reaches // the top of the screen when scrolling down. int offset = child.getBottom() < mWeekMinVisibleHeight ? 1 : 0; if (mIsScrollingUp) { child = (WeekView) view.getChildAt(SCROLL_HYST_WEEKS offset); } else if (offset != 0) { child = (WeekView) view.getChildAt(offset); } // Find out which month we're moving into int month; if (mIsScrollingUp) { month = child.getMonthOfFirstWeekDay(); } else { month = child.getMonthOfLastWeekDay(); } // And how it relates to our current highlighted month int monthDiff; if (mCurrentMonthDisplayed == 11 && month == 0) { monthDiff = 1; } else if (mCurrentMonthDisplayed == 0 && month == 11) { monthDiff = -1; } else { monthDiff = month - mCurrentMonthDisplayed; } // Only switch months if we're scrolling away from the currently // selected month if ((!mIsScrollingUp && monthDiff > 0) || (mIsScrollingUp && monthDiff < 0)) { Calendar firstDay = child.getFirstDay(); if (mIsScrollingUp) { firstDay.add(Calendar.DAY_OF_MONTH, -DAYS_PER_WEEK); } else { firstDay.add(Calendar.DAY_OF_MONTH, DAYS_PER_WEEK); } setMonthDisplayed(firstDay); } mPreviousScrollPosition = currScroll; mPreviousScrollState = mCurrentScrollState; } /** * Sets the month displayed at the top of this view based on time. Override * to add custom events when the title is changed. * * @param calendar A day in the new focus month. */ private void setMonthDisplayed(Calendar calendar) { final int newMonthDisplayed = calendar.get(Calendar.MONTH); if (mCurrentMonthDisplayed != newMonthDisplayed) { mCurrentMonthDisplayed = newMonthDisplayed; mAdapter.setFocusMonth(mCurrentMonthDisplayed); final int flags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_NO_MONTH_DAY | DateUtils.FORMAT_SHOW_YEAR; final long millis = calendar.getTimeInMillis(); String newMonthName = DateUtils.formatDateRange(getContext(), millis, millis, flags); mMonthName.setText(newMonthName); mMonthName.invalidate(); } } /** * @return Returns the number of weeks between the current <code>date</code> * and the <code>mMinDate</code>. */ private int getWeeksSinceMinDate(Calendar date) { if (date.before(mMinDate)) { throw new IllegalArgumentException("fromDate: " mMinDate.getTime() " does not precede toDate: " date.getTime()); } long endTimeMillis = date.getTimeInMillis() date.getTimeZone().getOffset(date.getTimeInMillis()); long startTimeMillis = mMinDate.getTimeInMillis() mMinDate.getTimeZone().getOffset(mMinDate.getTimeInMillis()); long dayOffsetMillis = (mMinDate.get(Calendar.DAY_OF_WEEK) - mFirstDayOfWeek) * MILLIS_IN_DAY; return (int) ((endTimeMillis - startTimeMillis dayOffsetMillis) / MILLIS_IN_WEEK); } /** * Command responsible for acting upon scroll state changes. */ private class ScrollStateRunnable implements Runnable { private AbsListView mView; private int mNewState; /** * Sets up the runnable with a short delay in case the scroll state * immediately changes again. * * @param view The list view that changed state * @param scrollState The new state it changed to */ public void doScrollStateChange(AbsListView view, int scrollState) { mView = view; mNewState = scrollState; removeCallbacks(this); postDelayed(this, SCROLL_CHANGE_DELAY); } public void run() { mCurrentScrollState = mNewState; // Fix the position after a scroll or a fling ends if (mNewState == OnScrollListener.SCROLL_STATE_IDLE && mPreviousScrollState != OnScrollListener.SCROLL_STATE_IDLE) { View child = mView.getChildAt(0); if (child == null) { // The view is no longer visible, just return return; } int dist = child.getBottom() - mListScrollTopOffset; if (dist > mListScrollTopOffset) { if (mIsScrollingUp) { mView.smoothScrollBy(dist - child.getHeight(), ADJUSTMENT_SCROLL_DURATION); } else { mView.smoothScrollBy(dist, ADJUSTMENT_SCROLL_DURATION); } } } mPreviousScrollState = mNewState; } } /** * <p> * This is a specialized adapter for creating a list of weeks with * selectable days. It can be configured to display the week number, start * the week on a given day, show a reduced number of days, or display an * arbitrary number of weeks at a time. * </p> */ private class WeeksAdapter extends BaseAdapter implements OnTouchListener { private int mSelectedWeek; private GestureDetector mGestureDetector; private int mFocusedMonth; private final Calendar mSelectedDate = Calendar.getInstance(); private int mTotalWeekCount; public WeeksAdapter(Context context) { mGestureDetector = new GestureDetector(getContext(), new CalendarGestureListener()); init(); } /** * Set up the gesture detector and selected time */ private void init() { mSelectedWeek = getWeeksSinceMinDate(mSelectedDate); mTotalWeekCount = getWeeksSinceMinDate(mMaxDate); if (mMinDate.get(Calendar.DAY_OF_WEEK) != mFirstDayOfWeek || mMaxDate.get(Calendar.DAY_OF_WEEK) != mFirstDayOfWeek) { mTotalWeekCount ; } } /** * Updates the selected day and related parameters. * * @param selectedDay The time to highlight */ public void setSelectedDay(Calendar selectedDay) { if (selectedDay.get(Calendar.DAY_OF_YEAR) == mSelectedDate.get(Calendar.DAY_OF_YEAR) && selectedDay.get(Calendar.YEAR) == mSelectedDate.get(Calendar.YEAR)) { return; } mSelectedDate.setTimeInMillis(selectedDay.getTimeInMillis()); mSelectedWeek = getWeeksSinceMinDate(mSelectedDate); mFocusedMonth = mSelectedDate.get(Calendar.MONTH); notifyDataSetChanged(); } /** * @return The selected day of month. */ public Calendar getSelectedDay() { return mSelectedDate; } @Override public int getCount() { return mTotalWeekCount; } @Override public Object getItem(int position) { return null; } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { WeekView weekView = null; if (convertView != null) { weekView = (WeekView) convertView; } else { weekView = new WeekView(getContext()); android.widget.AbsListView.LayoutParams params = new android.widget.AbsListView.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT); weekView.setLayoutParams(params); weekView.setClickable(true); weekView.setOnTouchListener(this); } int selectedWeekDay = (mSelectedWeek == position) ? mSelectedDate.get( Calendar.DAY_OF_WEEK) : -1; weekView.init(position, selectedWeekDay, mFocusedMonth); return weekView; } /** * Changes which month is in focus and updates the view. * * @param month The month to show as in focus [0-11] */ public void setFocusMonth(int month) { if (mFocusedMonth == month) { return; } mFocusedMonth = month; notifyDataSetChanged(); } @Override public boolean onTouch(View v, MotionEvent event) { if (mListView.isEnabled() && mGestureDetector.onTouchEvent(event)) { WeekView weekView = (WeekView) v; // if we cannot find a day for the given location we are done if (!weekView.getDayFromLocation(event.getX(), mTempDate)) { return true; } // it is possible that the touched day is outside the valid range // we draw whole weeks but range end can fall not on the week end if (mTempDate.before(mMinDate) || mTempDate.after(mMaxDate)) { return true; } onDateTapped(mTempDate); return true; } return false; } /** * Maintains the same hour/min/sec but moves the day to the tapped day. * * @param day The day that was tapped */ private void onDateTapped(Calendar day) { setSelectedDay(day); setMonthDisplayed(day); } /** * This is here so we can identify single tap events and set the * selected day correctly */ class CalendarGestureListener extends GestureDetector.SimpleOnGestureListener { @Override public boolean onSingleTapUp(MotionEvent e) { return true; } } } /** * <p> * This is a dynamic view for drawing a single week. It can be configured to * display the week number, start the week on a given day, or show a reduced * number of days. It is intended for use as a single view within a * ListView. See {@link WeeksAdapter} for usage. * </p> */ private class WeekView extends View { private final Rect mTempRect = new Rect(); private final Paint mDrawPaint = new Paint(); private final Paint mMonthNumDrawPaint = new Paint(); // Cache the number strings so we don't have to recompute them each time private String[] mDayNumbers; // Quick lookup for checking which days are in the focus month private boolean[] mFocusDay; // Whether this view has a focused day. private boolean mHasFocusedDay; // Whether this view has only focused days. private boolean mHasUnfocusedDay; // The first day displayed by this item private Calendar mFirstDay; // The month of the first day in this week private int mMonthOfFirstWeekDay = -1; // The month of the last day in this week private int mLastWeekDayMonth = -1; // The position of this week, equivalent to weeks since the week of Jan // 1st, 1900 private int mWeek = -1; // Quick reference to the width of this view, matches parent private int mWidth; // The height this view should draw at in pixels, set by height param private int mHeight; // If this view contains the selected day private boolean mHasSelectedDay = false; // Which day is selected [0-6] or -1 if no day is selected private int mSelectedDay = -1; // The number of days a spot for week number if it is displayed private int mNumCells; // The left edge of the selected day private int mSelectedLeft = -1; // The right edge of the selected day private int mSelectedRight = -1; public WeekView(Context context) { super(context); // Sets up any standard paints that will be used initilaizePaints(); } /** * Initializes this week view. * * @param weekNumber The number of the week this view represents. The * week number is a zero based index of the weeks since * {@link CalendarView#getMinDate()}. * @param selectedWeekDay The selected day of the week from 0 to 6, -1 if no * selected day. * @param focusedMonth The month that is currently in focus i.e. * highlighted. */ public void init(int weekNumber, int selectedWeekDay, int focusedMonth) { mSelectedDay = selectedWeekDay; mHasSelectedDay = mSelectedDay != -1; mNumCells = mShowWeekNumber ? mDaysPerWeek 1 : mDaysPerWeek; mWeek = weekNumber; mTempDate.setTimeInMillis(mMinDate.getTimeInMillis()); mTempDate.add(Calendar.WEEK_OF_YEAR, mWeek); mTempDate.setFirstDayOfWeek(mFirstDayOfWeek); // Allocate space for caching the day numbers and focus values mDayNumbers = new String[mNumCells]; mFocusDay = new boolean[mNumCells]; // If we're showing the week number calculate it based on Monday int i = 0; if (mShowWeekNumber) { mDayNumbers[0] = String.format(Locale.getDefault(), "%d", mTempDate.get(Calendar.WEEK_OF_YEAR)); i ; } // Now adjust our starting day based on the start day of the week int diff = mFirstDayOfWeek - mTempDate.get(Calendar.DAY_OF_WEEK); mTempDate.add(Calendar.DAY_OF_MONTH, diff); mFirstDay = (Calendar) mTempDate.clone(); mMonthOfFirstWeekDay = mTempDate.get(Calendar.MONTH); mHasUnfocusedDay = true; for (; i < mNumCells; i ) { final boolean isFocusedDay = (mTempDate.get(Calendar.MONTH) == focusedMonth); mFocusDay[i] = isFocusedDay; mHasFocusedDay |= isFocusedDay; mHasUnfocusedDay &= !isFocusedDay; // do not draw dates outside the valid range to avoid user confusion if (mTempDate.before(mMinDate) || mTempDate.after(mMaxDate)) { mDayNumbers[i] = ""; } else { mDayNumbers[i] = String.format(Locale.getDefault(), "%d", mTempDate.get(Calendar.DAY_OF_MONTH)); } mTempDate.add(Calendar.DAY_OF_MONTH, 1); } // We do one extra add at the end of the loop, if that pushed us to // new month undo it if (mTempDate.get(Calendar.DAY_OF_MONTH) == 1) { mTempDate.add(Calendar.DAY_OF_MONTH, -1); } mLastWeekDayMonth = mTempDate.get(Calendar.MONTH); updateSelectionPositions(); } /** * Initialize the paint instances. */ private void initilaizePaints() { mDrawPaint.setFakeBoldText(false); mDrawPaint.setAntiAlias(true); mDrawPaint.setStyle(Style.FILL); mMonthNumDrawPaint.setFakeBoldText(true); mMonthNumDrawPaint.setAntiAlias(true); mMonthNumDrawPaint.setStyle(Style.FILL); mMonthNumDrawPaint.setTextAlign(Align.CENTER); mMonthNumDrawPaint.setTextSize(mDateTextSize); } /** * Returns the month of the first day in this week. * * @return The month the first day of this view is in. */ public int getMonthOfFirstWeekDay() { return mMonthOfFirstWeekDay; } /** * Returns the month of the last day in this week * * @return The month the last day of this view is in */ public int getMonthOfLastWeekDay() { return mLastWeekDayMonth; } /** * Returns the first day in this view. * * @return The first day in the view. */ public Calendar getFirstDay() { return mFirstDay; } /** * Calculates the day that the given x position is in, accounting for * week number. * * @param x The x position of the touch event. * @return True if a day was found for the given location. */ public boolean getDayFromLocation(float x, Calendar outCalendar) { final boolean isLayoutRtl = isLayoutRtl(); int start; int end; if (isLayoutRtl) { start = 0; end = mShowWeekNumber ? mWidth - mWidth / mNumCells : mWidth; } else { start = mShowWeekNumber ? mWidth / mNumCells : 0; end = mWidth; } if (x < start || x > end) { outCalendar.clear(); return false; } // Selection is (x - start) / (pixels/day) which is (x - start) * day / pixels int dayPosition = (int) ((x - start) * mDaysPerWeek / (end - start)); if (isLayoutRtl) { dayPosition = mDaysPerWeek - 1 - dayPosition; } outCalendar.setTimeInMillis(mFirstDay.getTimeInMillis()); outCalendar.add(Calendar.DAY_OF_MONTH, dayPosition); return true; } @Override protected void onDraw(Canvas canvas) { drawBackground(canvas); drawWeekNumbersAndDates(canvas); drawWeekSeparators(canvas); drawSelectedDateVerticalBars(canvas); } /** * This draws the selection highlight if a day is selected in this week. * * @param canvas The canvas to draw on */ private void drawBackground(Canvas canvas) { if (!mHasSelectedDay) { return; } mDrawPaint.setColor(mSelectedWeekBackgroundColor); mTempRect.top = mWeekSeperatorLineWidth; mTempRect.bottom = mHeight; final boolean isLayoutRtl = isLayoutRtl(); if (isLayoutRtl) { mTempRect.left = 0; mTempRect.right = mSelectedLeft - 2; } else { mTempRect.left = mShowWeekNumber ? mWidth / mNumCells : 0; mTempRect.right = mSelectedLeft - 2; } canvas.drawRect(mTempRect, mDrawPaint); if (isLayoutRtl) { mTempRect.left = mSelectedRight 3; mTempRect.right = mShowWeekNumber ? mWidth - mWidth / mNumCells : mWidth; } else { mTempRect.left = mSelectedRight 3; mTempRect.right = mWidth; } canvas.drawRect(mTempRect, mDrawPaint); } /** * Draws the week and month day numbers for this week. * * @param canvas The canvas to draw on */ private void drawWeekNumbersAndDates(Canvas canvas) { final float textHeight = mDrawPaint.getTextSize(); final int y = (int) ((mHeight textHeight) / 2) - mWeekSeperatorLineWidth; final int nDays = mNumCells; final int divisor = 2 * nDays; mDrawPaint.setTextAlign(Align.CENTER); mDrawPaint.setTextSize(mDateTextSize); int i = 0; if (isLayoutRtl()) { for (; i < nDays - 1; i ) { mMonthNumDrawPaint.setColor(mFocusDay[i] ? mFocusedMonthDateColor : mUnfocusedMonthDateColor); int x = (2 * i 1) * mWidth / divisor; canvas.drawText(mDayNumbers[nDays - 1 - i], x, y, mMonthNumDrawPaint); } if (mShowWeekNumber) { mDrawPaint.setColor(mWeekNumberColor); int x = mWidth - mWidth / divisor; canvas.drawText(mDayNumbers[0], x, y, mDrawPaint); } } else { if (mShowWeekNumber) { mDrawPaint.setColor(mWeekNumberColor); int x = mWidth / divisor; canvas.drawText(mDayNumbers[0], x, y, mDrawPaint); i ; } for (; i < nDays; i ) { mMonthNumDrawPaint.setColor(mFocusDay[i] ? mFocusedMonthDateColor : mUnfocusedMonthDateColor); int x = (2 * i 1) * mWidth / divisor; canvas.drawText(mDayNumbers[i], x, y, mMonthNumDrawPaint); } } } /** * Draws a horizontal line for separating the weeks. * * @param canvas The canvas to draw on. */ private void drawWeekSeparators(Canvas canvas) { // If it is the topmost fully visible child do not draw separator line int firstFullyVisiblePosition = mListView.getFirstVisiblePosition(); if (mListView.getChildAt(0).getTop() < 0) { firstFullyVisiblePosition ; } if (firstFullyVisiblePosition == mWeek) { return; } mDrawPaint.setColor(mWeekSeparatorLineColor); mDrawPaint.setStrokeWidth(mWeekSeperatorLineWidth); float startX; float stopX; if (isLayoutRtl()) { startX = 0; stopX = mShowWeekNumber ? mWidth - mWidth / mNumCells : mWidth; } else { startX = mShowWeekNumber ? mWidth / mNumCells : 0; stopX = mWidth; } canvas.drawLine(startX, 0, stopX, 0, mDrawPaint); } /** * Draws the selected date bars if this week has a selected day. * * @param canvas The canvas to draw on */ private void drawSelectedDateVerticalBars(Canvas canvas) { if (!mHasSelectedDay) { return; } mSelectedDateVerticalBar.setBounds(mSelectedLeft - mSelectedDateVerticalBarWidth / 2, mWeekSeperatorLineWidth, mSelectedLeft mSelectedDateVerticalBarWidth / 2, mHeight); mSelectedDateVerticalBar.draw(canvas); mSelectedDateVerticalBar.setBounds(mSelectedRight - mSelectedDateVerticalBarWidth / 2, mWeekSeperatorLineWidth, mSelectedRight mSelectedDateVerticalBarWidth / 2, mHeight); mSelectedDateVerticalBar.draw(canvas); } @Override protected void onSizeChanged(int w, int h, int oldw, int oldh) { mWidth = w; updateSelectionPositions(); } /** * This calculates the positions for the selected day lines. */ private void updateSelectionPositions() { if (mHasSelectedDay) { final boolean isLayoutRtl = isLayoutRtl(); int selectedPosition = mSelectedDay - mFirstDayOfWeek; if (selectedPosition < 0) { selectedPosition = 7; } if (mShowWeekNumber && !isLayoutRtl) { selectedPosition ; } if (isLayoutRtl) { mSelectedLeft = (mDaysPerWeek - 1 - selectedPosition) * mWidth / mNumCells; } else { mSelectedLeft = selectedPosition * mWidth / mNumCells; } mSelectedRight = mSelectedLeft mWidth / mNumCells; } } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { mHeight = (mListView.getHeight() - mListView.getPaddingTop() - mListView .getPaddingBottom()) / mShownWeekCount; setMeasuredDimension(MeasureSpec.getSize(widthMeasureSpec), mHeight); } } private boolean isLayoutRtl() { // No API17 in maven central.. //if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) { // return getLayoutDirection() == LAYOUT_DIRECTION_RTL; //} return false; }} |
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