Java tutorial
/* * Copyright (C) 2013 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 com.jarklee.materialdatetimepicker.date; import android.animation.ObjectAnimator; import android.app.Activity; import android.app.Dialog; import android.content.Context; import android.content.DialogInterface; import android.content.res.Configuration; import android.content.res.Resources; import android.graphics.Color; import android.os.Build; import android.os.Bundle; import android.support.annotation.ColorInt; import android.support.annotation.NonNull; import android.support.annotation.StringRes; import android.support.v4.app.DialogFragment; import android.support.v4.content.ContextCompat; import android.text.format.DateUtils; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.view.Window; import android.view.WindowManager; import android.view.animation.AlphaAnimation; import android.view.animation.Animation; import android.widget.Button; import android.widget.LinearLayout; import android.widget.TextView; import com.jarklee.materialdatetimepicker.HapticFeedbackController; import com.jarklee.materialdatetimepicker.R; import com.jarklee.materialdatetimepicker.TypefaceHelper; import com.jarklee.materialdatetimepicker.Utils; import java.text.SimpleDateFormat; import java.util.Arrays; import java.util.Calendar; import java.util.HashSet; import java.util.Locale; /** * Dialog allowing users to select a date. */ public class DatePickerDialog extends DialogFragment implements OnClickListener, DatePickerController { private static final int UNINITIALIZED = -1; private static final int MONTH_AND_DAY_VIEW = 0; private static final int YEAR_VIEW = 1; private static final String KEY_SELECTED_YEAR = "year"; private static final String KEY_SELECTED_MONTH = "month"; private static final String KEY_SELECTED_DAY = "day"; private static final String KEY_LIST_POSITION = "list_position"; private static final String KEY_WEEK_START = "week_start"; private static final String KEY_YEAR_START = "year_start"; private static final String KEY_YEAR_END = "year_end"; private static final String KEY_CURRENT_VIEW = "current_view"; private static final String KEY_LIST_POSITION_OFFSET = "list_position_offset"; private static final String KEY_MIN_DATE = "min_date"; private static final String KEY_MAX_DATE = "max_date"; private static final String KEY_HIGHLIGHTED_DAYS = "highlighted_days"; private static final String KEY_SELECTABLE_DAYS = "selectable_days"; private static final String KEY_DISABLED_DAYS = "disabled_days"; private static final String KEY_THEME_DARK = "theme_dark"; private static final String KEY_THEME_DARK_CHANGED = "theme_dark_changed"; private static final String KEY_ACCENT = "accent"; private static final String KEY_VIBRATE = "vibrate"; private static final String KEY_DISMISS = "dismiss"; private static final String KEY_AUTO_DISMISS = "auto_dismiss"; private static final String KEY_DEFAULT_VIEW = "default_view"; private static final String KEY_TITLE = "title"; private static final String KEY_OK_RESID = "ok_resid"; private static final String KEY_OK_STRING = "ok_string"; private static final String KEY_CANCEL_RESID = "cancel_resid"; private static final String KEY_CANCEL_STRING = "cancel_string"; private static final int DEFAULT_START_YEAR = 1900; private static final int DEFAULT_END_YEAR = 2100; private static final int ANIMATION_DURATION = 300; private static final int ANIMATION_DELAY = 500; static { DatePickerSetting.getInstance().updateLocale(Locale.getDefault()); } public static SimpleDateFormat YEAR_FORMAT; public static SimpleDateFormat DAY_FORMAT; private final Calendar mCalendar = trimToMidnight(Calendar.getInstance()); private OnDateSetListener mCallBack; private HashSet<OnDateChangedListener> mListeners = new HashSet<>(); private DialogInterface.OnCancelListener mOnCancelListener; private DialogInterface.OnDismissListener mOnDismissListener; private AccessibleDateAnimator mAnimator; private TextView mDayOfWeekView; private LinearLayout mMonthAndDayView; private TextView mSelectedMonthTextView; private TextView mSelectedDayTextView; private TextView mYearView; private DayPickerView mDayPickerView; private YearPickerView mYearPickerView; private Button mOkButton; private Button mCancelButton; private int mCurrentView = UNINITIALIZED; private int mWeekStart = mCalendar.getFirstDayOfWeek(); private int mMinYear = DEFAULT_START_YEAR; private int mMaxYear = DEFAULT_END_YEAR; private String mTitle; private Calendar mMinDate; private Calendar mMaxDate; private Calendar[] highlightedDays; private Calendar[] selectableDays; private Calendar[] disabledDays; private boolean mThemeDark = false; private boolean mThemeDarkChanged = false; private int mAccentColor = -1; private boolean mVibrate = true; private boolean mDismissOnPause = false; private boolean mAutoDismiss = false; private int mDefaultView = MONTH_AND_DAY_VIEW; private int mOkResid = android.R.string.ok; private String mOkString; private int mCancelResid = android.R.string.cancel; private String mCancelString; private HapticFeedbackController mHapticFeedbackController; private boolean mDelayAnimation = true; // Accessibility strings. private String mDayPickerDescription; private String mSelectDay; private String mYearPickerDescription; private String mSelectYear; /** * The callback used to indicate the user is done filling in the date. */ public interface OnDateSetListener { /** * @param view The view associated with this listener. * @param year The year that was set. * @param monthOfYear The month that was set (0-11) for compatibility * with {@link java.util.Calendar}. * @param dayOfMonth The day of the month that was set. */ void onDateSet(DatePickerDialog view, int year, int monthOfYear, int dayOfMonth); } /** * The callback used to notify other date picker components of a change in selected date. */ public interface OnDateChangedListener { void onDateChanged(); } public DatePickerDialog() { // Empty constructor required for dialog fragment. } /** * @param callBack How the parent is notified that the date is set. * @param year The initial year of the dialog. * @param monthOfYear The initial month of the dialog. * @param dayOfMonth The initial day of the dialog. */ public static DatePickerDialog newInstance(OnDateSetListener callBack, int year, int monthOfYear, int dayOfMonth) { DatePickerDialog ret = new DatePickerDialog(); ret.initialize(callBack, year, monthOfYear, dayOfMonth); return ret; } public void initialize(OnDateSetListener callBack, int year, int monthOfYear, int dayOfMonth) { mCallBack = callBack; mCalendar.set(Calendar.YEAR, year); mCalendar.set(Calendar.MONTH, monthOfYear); mCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); final Activity activity = getActivity(); activity.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN); mCurrentView = UNINITIALIZED; if (savedInstanceState != null) { mCalendar.set(Calendar.YEAR, savedInstanceState.getInt(KEY_SELECTED_YEAR)); mCalendar.set(Calendar.MONTH, savedInstanceState.getInt(KEY_SELECTED_MONTH)); mCalendar.set(Calendar.DAY_OF_MONTH, savedInstanceState.getInt(KEY_SELECTED_DAY)); mDefaultView = savedInstanceState.getInt(KEY_DEFAULT_VIEW); } } @Override public void onSaveInstanceState(@NonNull Bundle outState) { super.onSaveInstanceState(outState); outState.putInt(KEY_SELECTED_YEAR, mCalendar.get(Calendar.YEAR)); outState.putInt(KEY_SELECTED_MONTH, mCalendar.get(Calendar.MONTH)); outState.putInt(KEY_SELECTED_DAY, mCalendar.get(Calendar.DAY_OF_MONTH)); outState.putInt(KEY_WEEK_START, mWeekStart); outState.putInt(KEY_YEAR_START, mMinYear); outState.putInt(KEY_YEAR_END, mMaxYear); outState.putInt(KEY_CURRENT_VIEW, mCurrentView); int listPosition = -1; if (mCurrentView == MONTH_AND_DAY_VIEW) { listPosition = mDayPickerView.getMostVisiblePosition(); } else if (mCurrentView == YEAR_VIEW) { listPosition = mYearPickerView.getFirstVisiblePosition(); outState.putInt(KEY_LIST_POSITION_OFFSET, mYearPickerView.getFirstPositionOffset()); } outState.putInt(KEY_LIST_POSITION, listPosition); outState.putSerializable(KEY_MIN_DATE, mMinDate); outState.putSerializable(KEY_MAX_DATE, mMaxDate); outState.putSerializable(KEY_HIGHLIGHTED_DAYS, highlightedDays); outState.putSerializable(KEY_SELECTABLE_DAYS, selectableDays); outState.putSerializable(KEY_DISABLED_DAYS, disabledDays); outState.putBoolean(KEY_THEME_DARK, mThemeDark); outState.putBoolean(KEY_THEME_DARK_CHANGED, mThemeDarkChanged); outState.putInt(KEY_ACCENT, mAccentColor); outState.putBoolean(KEY_VIBRATE, mVibrate); outState.putBoolean(KEY_DISMISS, mDismissOnPause); outState.putBoolean(KEY_AUTO_DISMISS, mAutoDismiss); outState.putInt(KEY_DEFAULT_VIEW, mDefaultView); outState.putString(KEY_TITLE, mTitle); outState.putInt(KEY_OK_RESID, mOkResid); outState.putString(KEY_OK_STRING, mOkString); outState.putInt(KEY_CANCEL_RESID, mCancelResid); outState.putString(KEY_CANCEL_STRING, mCancelString); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // All options have been set at this point: round the initial selection if necessary setToNearestDate(mCalendar); View view = inflater.inflate(R.layout.mdtp_date_picker_dialog, container, false); mDayOfWeekView = (TextView) view.findViewById(R.id.date_picker_header); mMonthAndDayView = (LinearLayout) view.findViewById(R.id.date_picker_month_and_day); mMonthAndDayView.setOnClickListener(this); mSelectedMonthTextView = (TextView) view.findViewById(R.id.date_picker_month); mSelectedDayTextView = (TextView) view.findViewById(R.id.date_picker_day); mYearView = (TextView) view.findViewById(R.id.date_picker_year); mYearView.setOnClickListener(this); int listPosition = -1; int listPositionOffset = 0; int currentView = mDefaultView; if (savedInstanceState != null) { mWeekStart = savedInstanceState.getInt(KEY_WEEK_START); mMinYear = savedInstanceState.getInt(KEY_YEAR_START); mMaxYear = savedInstanceState.getInt(KEY_YEAR_END); currentView = savedInstanceState.getInt(KEY_CURRENT_VIEW); listPosition = savedInstanceState.getInt(KEY_LIST_POSITION); listPositionOffset = savedInstanceState.getInt(KEY_LIST_POSITION_OFFSET); mMinDate = (Calendar) savedInstanceState.getSerializable(KEY_MIN_DATE); mMaxDate = (Calendar) savedInstanceState.getSerializable(KEY_MAX_DATE); highlightedDays = (Calendar[]) savedInstanceState.getSerializable(KEY_HIGHLIGHTED_DAYS); selectableDays = (Calendar[]) savedInstanceState.getSerializable(KEY_SELECTABLE_DAYS); disabledDays = (Calendar[]) savedInstanceState.getSerializable(KEY_DISABLED_DAYS); mThemeDark = savedInstanceState.getBoolean(KEY_THEME_DARK); mThemeDarkChanged = savedInstanceState.getBoolean(KEY_THEME_DARK_CHANGED); mAccentColor = savedInstanceState.getInt(KEY_ACCENT); mVibrate = savedInstanceState.getBoolean(KEY_VIBRATE); mDismissOnPause = savedInstanceState.getBoolean(KEY_DISMISS); mAutoDismiss = savedInstanceState.getBoolean(KEY_AUTO_DISMISS); mTitle = savedInstanceState.getString(KEY_TITLE); mOkResid = savedInstanceState.getInt(KEY_OK_RESID); mOkString = savedInstanceState.getString(KEY_OK_STRING); mCancelResid = savedInstanceState.getInt(KEY_CANCEL_RESID); mCancelString = savedInstanceState.getString(KEY_CANCEL_STRING); } final Activity activity = getActivity(); mDayPickerView = new SimpleDayPickerView(activity, this); mYearPickerView = new YearPickerView(activity, this); // if theme mode has not been set by java code, check if it is specified in Style.xml if (!mThemeDarkChanged) { mThemeDark = Utils.isDarkTheme(activity, mThemeDark); } Resources res = getResources(); mDayPickerDescription = res.getString(R.string.mdtp_day_picker_description); mSelectDay = res.getString(R.string.mdtp_select_day); mYearPickerDescription = res.getString(R.string.mdtp_year_picker_description); mSelectYear = res.getString(R.string.mdtp_select_year); int bgColorResource = mThemeDark ? R.color.mdtp_date_picker_view_animator_dark_theme : R.color.mdtp_date_picker_view_animator; view.setBackgroundColor(ContextCompat.getColor(activity, bgColorResource)); mAnimator = (AccessibleDateAnimator) view.findViewById(R.id.animator); mAnimator.addView(mDayPickerView); mAnimator.addView(mYearPickerView); mAnimator.setDateMillis(mCalendar.getTimeInMillis()); // TODO: Replace with animation decided upon by the design team. Animation animation = new AlphaAnimation(0.0f, 1.0f); animation.setDuration(ANIMATION_DURATION); mAnimator.setInAnimation(animation); // TODO: Replace with animation decided upon by the design team. Animation animation2 = new AlphaAnimation(1.0f, 0.0f); animation2.setDuration(ANIMATION_DURATION); mAnimator.setOutAnimation(animation2); mOkButton = (Button) view.findViewById(R.id.ok); mOkButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { tryVibrate(); notifyOnDateListener(); dismiss(); } }); mOkButton.setTypeface(TypefaceHelper.get(activity, "Roboto-Medium")); if (mOkString != null) mOkButton.setText(mOkString); else mOkButton.setText(Utils.getStringFromLocale(getContext(), mOkResid, getLocale())); mCancelButton = (Button) view.findViewById(R.id.cancel); mCancelButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { tryVibrate(); if (getDialog() != null) getDialog().cancel(); } }); mCancelButton.setTypeface(TypefaceHelper.get(activity, "Roboto-Medium")); if (mCancelString != null) mCancelButton.setText(mCancelString); else mCancelButton.setText(Utils.getStringFromLocale(getContext(), mCancelResid, getLocale())); mCancelButton.setVisibility(isCancelable() ? View.VISIBLE : View.GONE); // If an accent color has not been set manually, get it from the context if (mAccentColor == -1) { mAccentColor = Utils.getAccentColorFromThemeIfAvailable(getActivity()); } if (mDayOfWeekView != null) mDayOfWeekView.setBackgroundColor(Utils.darkenColor(mAccentColor)); view.findViewById(R.id.day_picker_selected_date_layout).setBackgroundColor(mAccentColor); mOkButton.setTextColor(mAccentColor); mCancelButton.setTextColor(mAccentColor); if (getDialog() == null) { view.findViewById(R.id.done_background).setVisibility(View.GONE); } updateDisplay(false); setCurrentView(currentView); if (listPosition != -1) { if (currentView == MONTH_AND_DAY_VIEW) { mDayPickerView.postSetSelection(listPosition); } else if (currentView == YEAR_VIEW) { mYearPickerView.postSetSelectionFromTop(listPosition, listPositionOffset); } } mHapticFeedbackController = new HapticFeedbackController(activity); return view; } @Override public void onConfigurationChanged(final Configuration newConfig) { super.onConfigurationChanged(newConfig); ViewGroup viewGroup = (ViewGroup) getView(); if (viewGroup != null) { viewGroup.removeAllViewsInLayout(); View view = onCreateView(getActivity().getLayoutInflater(), viewGroup, null); viewGroup.addView(view); } } @Override public Dialog onCreateDialog(Bundle savedInstanceState) { Dialog dialog = super.onCreateDialog(savedInstanceState); dialog.requestWindowFeature(Window.FEATURE_NO_TITLE); return dialog; } @Override public void onResume() { super.onResume(); mHapticFeedbackController.start(); } @Override public void onPause() { super.onPause(); mHapticFeedbackController.stop(); if (mDismissOnPause) dismiss(); } @Override public void onCancel(DialogInterface dialog) { super.onCancel(dialog); if (mOnCancelListener != null) mOnCancelListener.onCancel(dialog); } @Override public void onDismiss(DialogInterface dialog) { super.onDismiss(dialog); if (mOnDismissListener != null) mOnDismissListener.onDismiss(dialog); } private void setCurrentView(final int viewIndex) { long millis = mCalendar.getTimeInMillis(); ObjectAnimator pulseAnimator = null; switch (viewIndex) { case MONTH_AND_DAY_VIEW: if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { pulseAnimator = Utils.getPulseAnimator(mMonthAndDayView, 0.9f, 1.05f); if (mDelayAnimation) { pulseAnimator.setStartDelay(ANIMATION_DELAY); mDelayAnimation = false; } } else { pulseAnimator = null; } mDayPickerView.onDateChanged(); if (mCurrentView != viewIndex) { mMonthAndDayView.setSelected(true); mYearView.setSelected(false); mAnimator.setDisplayedChild(MONTH_AND_DAY_VIEW); mCurrentView = viewIndex; } if (pulseAnimator != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { pulseAnimator.start(); } int flags = DateUtils.FORMAT_SHOW_DATE; String dayString = DateUtils.formatDateTime(getActivity(), millis, flags); mAnimator.setContentDescription(mDayPickerDescription + ": " + dayString); Utils.tryAccessibilityAnnounce(mAnimator, mSelectDay); break; case YEAR_VIEW: if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { pulseAnimator = Utils.getPulseAnimator(mYearView, 0.85f, 1.1f); if (mDelayAnimation) { pulseAnimator.setStartDelay(ANIMATION_DELAY); mDelayAnimation = false; } } else { pulseAnimator = null; } mYearPickerView.onDateChanged(); if (mCurrentView != viewIndex) { mMonthAndDayView.setSelected(false); mYearView.setSelected(true); mAnimator.setDisplayedChild(YEAR_VIEW); mCurrentView = viewIndex; } if (pulseAnimator != null && Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { pulseAnimator.start(); } CharSequence yearString = YEAR_FORMAT.format(millis); mAnimator.setContentDescription(mYearPickerDescription + ": " + yearString); Utils.tryAccessibilityAnnounce(mAnimator, mSelectYear); break; } } private void updateDisplay(boolean announce) { if (mDayOfWeekView != null) { if (mTitle != null) mDayOfWeekView.setText(mTitle.toUpperCase(getLocale())); else { mDayOfWeekView.setText(mCalendar.getDisplayName(Calendar.DAY_OF_WEEK, Calendar.LONG, getLocale()) .toUpperCase(getLocale())); } } mSelectedMonthTextView.setText( mCalendar.getDisplayName(Calendar.MONTH, Calendar.SHORT, getLocale()).toUpperCase(getLocale())); mSelectedDayTextView.setText(DAY_FORMAT.format(mCalendar.getTime())); mYearView.setText(YEAR_FORMAT.format(mCalendar.getTime())); // Accessibility. long millis = mCalendar.getTimeInMillis(); mAnimator.setDateMillis(millis); int flags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_NO_YEAR; String monthAndDayText = DateUtils.formatDateTime(getActivity(), millis, flags); mMonthAndDayView.setContentDescription(monthAndDayText); if (announce) { flags = DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR; String fullDateText = DateUtils.formatDateTime(getActivity(), millis, flags); Utils.tryAccessibilityAnnounce(mAnimator, fullDateText); } } /** * Set user custom locale * * @param locale user locale */ public void setLocale(Locale locale) { if (!DatePickerSetting.getInstance().updateLocale(locale) || !isVisible()) { return; } Context context = getContext(); if (context != null) { if (mOkButton != null) { if (mOkString != null) { mOkButton.setText(mOkString); } else { mOkButton.setText(Utils.getStringFromLocale(getContext(), mOkResid, getLocale())); } } if (mCancelButton != null) { if (mCancelString != null) { mCancelButton.setText(mCancelString); } else { mCancelButton.setText(Utils.getStringFromLocale(getContext(), mCancelResid, getLocale())); } } } updateDisplay(false); } public Locale getLocale() { return DatePickerSetting.getInstance().getLocale(); } /** * Set whether the device should vibrate when touching fields * * @param vibrate true if the device should vibrate when touching a field */ public void vibrate(boolean vibrate) { mVibrate = vibrate; } /** * Set whether the picker should dismiss itself when being paused or whether it should try to survive an orientation change * * @param dismissOnPause true if the dialog should dismiss itself when it's pausing */ public void dismissOnPause(boolean dismissOnPause) { mDismissOnPause = dismissOnPause; } /** * Set whether the picker should dismiss itself when a day is selected * * @param autoDismiss true if the dialog should dismiss itself when a day is selected */ @SuppressWarnings("unused") public void autoDismiss(boolean autoDismiss) { mAutoDismiss = autoDismiss; } /** * Set whether the dark theme should be used * * @param themeDark true if the dark theme should be used, false if the default theme should be used */ public void setThemeDark(boolean themeDark) { mThemeDark = themeDark; mThemeDarkChanged = true; } /** * Returns true when the dark theme should be used * * @return true if the dark theme should be used, false if the default theme should be used */ @Override public boolean isThemeDark() { return mThemeDark; } /** * Set the accent color of this dialog * * @param color the accent color you want */ @SuppressWarnings("unused") public void setAccentColor(String color) { mAccentColor = Color.parseColor(color); } /** * Set the accent color of this dialog * * @param color the accent color you want */ public void setAccentColor(@ColorInt int color) { mAccentColor = Color.argb(255, Color.red(color), Color.green(color), Color.blue(color)); } /** * Get the accent color of this dialog * * @return accent color */ @Override public int getAccentColor() { return mAccentColor; } /** * Set whether the year picker of the month and day picker is shown first * * @param yearPicker boolean */ public void showYearPickerFirst(boolean yearPicker) { mDefaultView = yearPicker ? YEAR_VIEW : MONTH_AND_DAY_VIEW; } @SuppressWarnings("unused") public void setFirstDayOfWeek(int startOfWeek) { if (startOfWeek < Calendar.SUNDAY || startOfWeek > Calendar.SATURDAY) { throw new IllegalArgumentException("Value must be between Calendar.SUNDAY and " + "Calendar.SATURDAY"); } mWeekStart = startOfWeek; if (mDayPickerView != null) { mDayPickerView.onChange(); } } @SuppressWarnings("unused") public void setYearRange(int startYear, int endYear) { if (endYear < startYear) { throw new IllegalArgumentException("Year end must be larger than or equal to year start"); } mMinYear = startYear; mMaxYear = endYear; if (mDayPickerView != null) { mDayPickerView.onChange(); } } /** * Sets the minimal date supported by this DatePicker. Dates before (but not including) the * specified date will be disallowed from being selected. * * @param calendar a Calendar object set to the year, month, day desired as the mindate. */ @SuppressWarnings("unused") public void setMinDate(Calendar calendar) { mMinDate = trimToMidnight(calendar); if (mDayPickerView != null) { mDayPickerView.onChange(); } } /** * @return The minimal date supported by this DatePicker. Null if it has not been set. */ @SuppressWarnings("unused") public Calendar getMinDate() { return mMinDate; } /** * Sets the minimal date supported by this DatePicker. Dates after (but not including) the * specified date will be disallowed from being selected. * * @param calendar a Calendar object set to the year, month, day desired as the maxdate. */ @SuppressWarnings("unused") public void setMaxDate(Calendar calendar) { mMaxDate = trimToMidnight(calendar); if (mDayPickerView != null) { mDayPickerView.onChange(); } } /** * @return The maximal date supported by this DatePicker. Null if it has not been set. */ @SuppressWarnings("unused") public Calendar getMaxDate() { return mMaxDate; } /** * Sets an array of dates which should be highlighted when the picker is drawn * * @param highlightedDays an Array of Calendar objects containing the dates to be highlighted */ @SuppressWarnings("unused") public void setHighlightedDays(Calendar[] highlightedDays) { Arrays.sort(highlightedDays); for (Calendar highlightedDay : highlightedDays) trimToMidnight(highlightedDay); this.highlightedDays = highlightedDays; if (mDayPickerView != null) mDayPickerView.onChange(); } /** * @return The list of dates, as Calendar Objects, which should be highlighted. null is no dates should be highlighted */ @Override public Calendar[] getHighlightedDays() { return highlightedDays; } /** * Sets a list of days which are the only valid selections. * Setting this value will take precedence over using setMinDate() and setMaxDate() * * @param selectableDays an Array of Calendar Objects containing the selectable dates */ @SuppressWarnings("unused") public void setSelectableDays(Calendar[] selectableDays) { Arrays.sort(selectableDays); for (Calendar selectableDay : selectableDays) trimToMidnight(selectableDay); this.selectableDays = selectableDays; if (mDayPickerView != null) mDayPickerView.onChange(); } /** * @return an Array of Calendar objects containing the list with selectable items. null if no restriction is set */ @SuppressWarnings("unused") public Calendar[] getSelectableDays() { return selectableDays; } /** * Sets a list of days that are not selectable in the picker * Setting this value will take precedence over using setMinDate() and setMaxDate(), but stacks with setSelectableDays() * * @param disabledDays an Array of Calendar Objects containing the disabled dates */ @SuppressWarnings("unused") public void setDisabledDays(Calendar[] disabledDays) { Arrays.sort(disabledDays); for (Calendar disabledDay : disabledDays) trimToMidnight(disabledDay); this.disabledDays = disabledDays; if (mDayPickerView != null) mDayPickerView.onChange(); } /** * @return an Array of Calendar objects containing the list of days that are not selectable. null if no restriction is set */ @SuppressWarnings("unused") public Calendar[] getDisabledDays() { return disabledDays; } /** * Set a title to be displayed instead of the weekday * * @param title String - The title to be displayed */ public void setTitle(String title) { mTitle = title; } /** * Set the label for the Ok button (max 12 characters) * * @param okString A literal String to be used as the Ok button label */ @SuppressWarnings("unused") public void setOkText(String okString) { mOkString = okString; } /** * Set the label for the Ok button (max 12 characters) * * @param okResid A resource ID to be used as the Ok button label */ @SuppressWarnings("unused") public void setOkText(@StringRes int okResid) { mOkString = null; mOkResid = okResid; } /** * Set the label for the Cancel button (max 12 characters) * * @param cancelString A literal String to be used as the Cancel button label */ @SuppressWarnings("unused") public void setCancelText(String cancelString) { mCancelString = cancelString; } /** * Set the label for the Cancel button (max 12 characters) * * @param cancelResid A resource ID to be used as the Cancel button label */ @SuppressWarnings("unused") public void setCancelText(@StringRes int cancelResid) { mCancelString = null; mCancelResid = cancelResid; } @SuppressWarnings("unused") public void setOnDateSetListener(OnDateSetListener listener) { mCallBack = listener; } @SuppressWarnings("unused") public void setOnCancelListener(DialogInterface.OnCancelListener onCancelListener) { mOnCancelListener = onCancelListener; } @SuppressWarnings("unused") public void setOnDismissListener(DialogInterface.OnDismissListener onDismissListener) { mOnDismissListener = onDismissListener; } // If the newly selected month / year does not contain the currently selected day number, // change the selected day number to the last day of the selected month or year. // e.g. Switching from Mar to Apr when Mar 31 is selected -> Apr 30 // e.g. Switching from 2012 to 2013 when Feb 29, 2012 is selected -> Feb 28, 2013 private void adjustDayInMonthIfNeeded(Calendar calendar) { int day = calendar.get(Calendar.DAY_OF_MONTH); int daysInMonth = calendar.getActualMaximum(Calendar.DAY_OF_MONTH); if (day > daysInMonth) { calendar.set(Calendar.DAY_OF_MONTH, daysInMonth); } setToNearestDate(calendar); } @Override public void onClick(View v) { tryVibrate(); if (v.getId() == R.id.date_picker_year) { setCurrentView(YEAR_VIEW); } else if (v.getId() == R.id.date_picker_month_and_day) { setCurrentView(MONTH_AND_DAY_VIEW); } } @Override public void onYearSelected(int year) { mCalendar.set(Calendar.YEAR, year); adjustDayInMonthIfNeeded(mCalendar); updatePickers(); setCurrentView(MONTH_AND_DAY_VIEW); updateDisplay(true); } @Override public void onDayOfMonthSelected(int year, int month, int day) { mCalendar.set(Calendar.YEAR, year); mCalendar.set(Calendar.MONTH, month); mCalendar.set(Calendar.DAY_OF_MONTH, day); updatePickers(); updateDisplay(true); if (mAutoDismiss) { notifyOnDateListener(); dismiss(); } } private void updatePickers() { for (OnDateChangedListener listener : mListeners) listener.onDateChanged(); } @Override public MonthAdapter.CalendarDay getSelectedDay() { return new MonthAdapter.CalendarDay(mCalendar); } @Override public Calendar getStartDate() { if (selectableDays != null) return selectableDays[0]; if (mMinDate != null) return mMinDate; Calendar output = Calendar.getInstance(); output.set(Calendar.YEAR, mMinYear); output.set(Calendar.DAY_OF_MONTH, 1); output.set(Calendar.MONTH, Calendar.JANUARY); return output; } @Override public Calendar getEndDate() { if (selectableDays != null) return selectableDays[selectableDays.length - 1]; if (mMaxDate != null) return mMaxDate; Calendar output = Calendar.getInstance(); output.set(Calendar.YEAR, mMaxYear); output.set(Calendar.DAY_OF_MONTH, 31); output.set(Calendar.MONTH, Calendar.DECEMBER); return output; } @Override public int getMinYear() { if (selectableDays != null) return selectableDays[0].get(Calendar.YEAR); // Ensure no years can be selected outside of the given minimum date return mMinDate != null && mMinDate.get(Calendar.YEAR) > mMinYear ? mMinDate.get(Calendar.YEAR) : mMinYear; } @Override public int getMaxYear() { if (selectableDays != null) return selectableDays[selectableDays.length - 1].get(Calendar.YEAR); // Ensure no years can be selected outside of the given maximum date return mMaxDate != null && mMaxDate.get(Calendar.YEAR) < mMaxYear ? mMaxDate.get(Calendar.YEAR) : mMaxYear; } /** * @return true if the specified year/month/day are within the selectable days or the range set by minDate and maxDate. * If one or either have not been set, they are considered as Integer.MIN_VALUE and * Integer.MAX_VALUE. */ @Override public boolean isOutOfRange(int year, int month, int day) { return isDisabled(year, month, day) || !isSelectable(year, month, day); } @SuppressWarnings("unused") public boolean isOutOfRange(Calendar calendar) { return isOutOfRange(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH)); } private boolean isDisabled(int year, int month, int day) { return containsDate(disabledDays, year, month, day) || isBeforeMin(year, month, day) || isAfterMax(year, month, day); } private boolean isDisabled(Calendar c) { return isDisabled(c.get(Calendar.YEAR), c.get(Calendar.MONTH), c.get(Calendar.DAY_OF_MONTH)); } private boolean isSelectable(int year, int month, int day) { return selectableDays == null || containsDate(selectableDays, year, month, day); } /** * Checks whether the given data is contained in an array of dates * * @param dates Calendar[] which contents we want to search * @param year the year as an int * @param month the month as an int * @param day the day as an int * @return true if the data is present in the array */ private boolean containsDate(Calendar[] dates, int year, int month, int day) { if (dates == null) return false; for (Calendar c : dates) { if (year < c.get(Calendar.YEAR)) break; if (year > c.get(Calendar.YEAR)) continue; if (month < c.get(Calendar.MONTH)) break; if (month > c.get(Calendar.MONTH)) continue; if (day < c.get(Calendar.DAY_OF_MONTH)) break; if (day > c.get(Calendar.DAY_OF_MONTH)) continue; return true; } return false; } private boolean isBeforeMin(int year, int month, int day) { if (mMinDate == null) { return false; } if (year < mMinDate.get(Calendar.YEAR)) { return true; } else if (year > mMinDate.get(Calendar.YEAR)) { return false; } if (month < mMinDate.get(Calendar.MONTH)) { return true; } else if (month > mMinDate.get(Calendar.MONTH)) { return false; } if (day < mMinDate.get(Calendar.DAY_OF_MONTH)) { return true; } else { return false; } } private boolean isBeforeMin(Calendar calendar) { return isBeforeMin(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH)); } private boolean isAfterMax(int year, int month, int day) { if (mMaxDate == null) { return false; } if (year > mMaxDate.get(Calendar.YEAR)) { return true; } else if (year < mMaxDate.get(Calendar.YEAR)) { return false; } if (month > mMaxDate.get(Calendar.MONTH)) { return true; } else if (month < mMaxDate.get(Calendar.MONTH)) { return false; } if (day > mMaxDate.get(Calendar.DAY_OF_MONTH)) { return true; } else { return false; } } private boolean isAfterMax(Calendar calendar) { return isAfterMax(calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH)); } private void setToNearestDate(Calendar calendar) { if (selectableDays != null) { long distance = Long.MAX_VALUE; Calendar currentBest = calendar; for (Calendar c : selectableDays) { long newDistance = Math.abs(calendar.getTimeInMillis() - c.getTimeInMillis()); if (newDistance < distance && !isDisabled(c)) { distance = newDistance; currentBest = c; } else break; } calendar.setTimeInMillis(currentBest.getTimeInMillis()); return; } if (disabledDays != null) { Calendar forwardDate = (Calendar) calendar.clone(); Calendar backwardDate = (Calendar) calendar.clone(); while (isDisabled(forwardDate) && isDisabled(backwardDate)) { forwardDate.add(Calendar.DAY_OF_MONTH, 1); backwardDate.add(Calendar.DAY_OF_MONTH, -1); } if (!isDisabled(backwardDate)) { calendar.setTimeInMillis(backwardDate.getTimeInMillis()); return; } if (!isDisabled(forwardDate)) { calendar.setTimeInMillis(forwardDate.getTimeInMillis()); return; } } if (isBeforeMin(calendar)) { calendar.setTimeInMillis(mMinDate.getTimeInMillis()); return; } if (isAfterMax(calendar)) { calendar.setTimeInMillis(mMaxDate.getTimeInMillis()); return; } } /** * Trims off all time information, effectively setting it to midnight * Makes it easier to compare at just the day level * * @param calendar The Calendar object to trim * @return The trimmed Calendar object */ private Calendar trimToMidnight(Calendar calendar) { calendar.set(Calendar.HOUR_OF_DAY, 0); calendar.set(Calendar.MINUTE, 0); calendar.set(Calendar.SECOND, 0); calendar.set(Calendar.MILLISECOND, 0); return calendar; } @Override public int getFirstDayOfWeek() { return mWeekStart; } @Override public void registerOnDateChangedListener(OnDateChangedListener listener) { mListeners.add(listener); } @Override public void unregisterOnDateChangedListener(OnDateChangedListener listener) { mListeners.remove(listener); } @Override public void tryVibrate() { if (mVibrate) mHapticFeedbackController.tryVibrate(); } public void notifyOnDateListener() { if (mCallBack != null) { mCallBack.onDateSet(DatePickerDialog.this, mCalendar.get(Calendar.YEAR), mCalendar.get(Calendar.MONTH), mCalendar.get(Calendar.DAY_OF_MONTH)); } } }