1 /* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.contacts.datepicker; 18 19 // This is a fork of the standard Android DatePicker that additionally allows toggling the year 20 // on/off. 21 22 import android.app.AlertDialog; 23 import android.content.Context; 24 import android.content.DialogInterface; 25 import android.content.DialogInterface.OnClickListener; 26 import android.os.Bundle; 27 import android.view.LayoutInflater; 28 import android.view.View; 29 30 import com.android.contacts.R; 31 import com.android.contacts.common.util.DateUtils; 32 import com.android.contacts.datepicker.DatePicker.OnDateChangedListener; 33 34 import java.text.DateFormat; 35 import java.util.Calendar; 36 37 /** 38 * A simple dialog containing an {@link DatePicker}. 39 * 40 * <p>See the <a href="{@docRoot}resources/tutorials/views/hello-datepicker.html">Date Picker 41 * tutorial</a>.</p> 42 */ 43 public class DatePickerDialog extends AlertDialog implements OnClickListener, 44 OnDateChangedListener { 45 46 /** Magic year that represents "no year" */ 47 public static int NO_YEAR = DatePicker.NO_YEAR; 48 49 private static final String YEAR = "year"; 50 private static final String MONTH = "month"; 51 private static final String DAY = "day"; 52 private static final String YEAR_OPTIONAL = "year_optional"; 53 54 private final DatePicker mDatePicker; 55 private final OnDateSetListener mCallBack; 56 private final DateFormat mTitleDateFormat; 57 private final DateFormat mTitleNoYearDateFormat; 58 59 private int mInitialYear; 60 private int mInitialMonth; 61 private int mInitialDay; 62 63 /** 64 * The callback used to indicate the user is done filling in the date. 65 */ 66 public interface OnDateSetListener { 67 /** 68 * @param view The view associated with this listener. 69 * @param year The year that was set or {@link DatePickerDialog#NO_YEAR} if the user has 70 * not specified a year 71 * @param monthOfYear The month that was set (0-11) for compatibility 72 * with {@link java.util.Calendar}. 73 * @param dayOfMonth The day of the month that was set. 74 */ 75 void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth); 76 } 77 78 /** 79 * @param context The context the dialog is to run in. 80 * @param callBack How the parent is notified that the date is set. 81 * @param year The initial year of the dialog 82 * @param monthOfYear The initial month of the dialog. 83 * @param dayOfMonth The initial day of the dialog. 84 */ 85 public DatePickerDialog(Context context, 86 OnDateSetListener callBack, 87 int year, 88 int monthOfYear, 89 int dayOfMonth) { 90 this(context, callBack, year, monthOfYear, dayOfMonth, false); 91 } 92 93 /** 94 * @param context The context the dialog is to run in. 95 * @param callBack How the parent is notified that the date is set. 96 * @param year The initial year of the dialog or {@link DatePickerDialog#NO_YEAR} if no year 97 * has been specified 98 * @param monthOfYear The initial month of the dialog. 99 * @param dayOfMonth The initial day of the dialog. 100 * @param yearOptional Whether the year can be toggled by the user 101 */ 102 public DatePickerDialog(Context context, 103 OnDateSetListener callBack, 104 int year, 105 int monthOfYear, 106 int dayOfMonth, 107 boolean yearOptional) { 108 // Don't pass a theme id. Instead use the default alert dialog theme. 109 this(context, /* themeId = */ -1, callBack, year, monthOfYear, dayOfMonth, 110 yearOptional); 111 } 112 113 /** 114 * @param context The context the dialog is to run in. 115 * @param theme the theme to apply to this dialog 116 * @param callBack How the parent is notified that the date is set. 117 * @param year The initial year of the dialog or {@link DatePickerDialog#NO_YEAR} if no year 118 * has been specified 119 * @param monthOfYear The initial month of the dialog. 120 * @param dayOfMonth The initial day of the dialog. 121 */ 122 public DatePickerDialog(Context context, 123 int theme, 124 OnDateSetListener callBack, 125 int year, 126 int monthOfYear, 127 int dayOfMonth) { 128 this(context, theme, callBack, year, monthOfYear, dayOfMonth, false); 129 } 130 131 /** 132 * @param context The context the dialog is to run in. 133 * @param theme the theme to apply to this dialog 134 * @param callBack How the parent is notified that the date is set. 135 * @param year The initial year of the dialog or {@link DatePickerDialog#NO_YEAR} if no 136 * year has been specified. 137 * @param monthOfYear The initial month of the dialog. 138 * @param dayOfMonth The initial day of the dialog. 139 * @param yearOptional Whether the year can be toggled by the user 140 */ 141 public DatePickerDialog(Context context, 142 int theme, 143 OnDateSetListener callBack, 144 int year, 145 int monthOfYear, 146 int dayOfMonth, 147 boolean yearOptional) { 148 super(context, theme); 149 150 mCallBack = callBack; 151 mInitialYear = year; 152 mInitialMonth = monthOfYear; 153 mInitialDay = dayOfMonth; 154 155 mTitleDateFormat = DateFormat.getDateInstance(DateFormat.FULL); 156 mTitleNoYearDateFormat = DateUtils.getLocalizedDateFormatWithoutYear(getContext()); 157 updateTitle(mInitialYear, mInitialMonth, mInitialDay); 158 159 setButton(BUTTON_POSITIVE, context.getText(R.string.date_time_set), 160 this); 161 setButton(BUTTON_NEGATIVE, context.getText(android.R.string.cancel), 162 (OnClickListener) null); 163 164 LayoutInflater inflater = 165 (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 166 View view = inflater.inflate(R.layout.date_picker_dialog, null); 167 setView(view); 168 mDatePicker = (DatePicker) view.findViewById(R.id.datePicker); 169 mDatePicker.init(mInitialYear, mInitialMonth, mInitialDay, yearOptional, this); 170 } 171 172 @Override 173 public void onClick(DialogInterface dialog, int which) { 174 if (mCallBack != null) { 175 mDatePicker.clearFocus(); 176 mCallBack.onDateSet(mDatePicker, mDatePicker.getYear(), 177 mDatePicker.getMonth(), mDatePicker.getDayOfMonth()); 178 } 179 } 180 181 @Override 182 public void onDateChanged(DatePicker view, int year, int month, int day) { 183 updateTitle(year, month, day); 184 } 185 186 public void updateDate(int year, int monthOfYear, int dayOfMonth) { 187 mInitialYear = year; 188 mInitialMonth = monthOfYear; 189 mInitialDay = dayOfMonth; 190 mDatePicker.updateDate(year, monthOfYear, dayOfMonth); 191 } 192 193 private void updateTitle(int year, int month, int day) { 194 final Calendar calendar = Calendar.getInstance(); 195 calendar.set(Calendar.YEAR, year); 196 calendar.set(Calendar.MONTH, month); 197 calendar.set(Calendar.DAY_OF_MONTH, day); 198 final DateFormat dateFormat = 199 year == NO_YEAR ? mTitleNoYearDateFormat : mTitleDateFormat; 200 setTitle(dateFormat.format(calendar.getTime())); 201 } 202 203 @Override 204 public Bundle onSaveInstanceState() { 205 Bundle state = super.onSaveInstanceState(); 206 state.putInt(YEAR, mDatePicker.getYear()); 207 state.putInt(MONTH, mDatePicker.getMonth()); 208 state.putInt(DAY, mDatePicker.getDayOfMonth()); 209 state.putBoolean(YEAR_OPTIONAL, mDatePicker.isYearOptional()); 210 return state; 211 } 212 213 @Override 214 public void onRestoreInstanceState(Bundle savedInstanceState) { 215 super.onRestoreInstanceState(savedInstanceState); 216 int year = savedInstanceState.getInt(YEAR); 217 int month = savedInstanceState.getInt(MONTH); 218 int day = savedInstanceState.getInt(DAY); 219 boolean yearOptional = savedInstanceState.getBoolean(YEAR_OPTIONAL); 220 mDatePicker.init(year, month, day, yearOptional, this); 221 updateTitle(year, month, day); 222 } 223 } 224
