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.datepicker.DatePicker.OnDateChangedListener; 32 import com.android.contacts.util.DateUtils; 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 or {@link DatePickerDialog#NO_YEAR} if no year 82 * has been specified 83 * @param monthOfYear The initial month of the dialog. 84 * @param dayOfMonth The initial day of the dialog. 85 * @param yearOptional Whether the year can be toggled by the user 86 */ 87 public DatePickerDialog(Context context, 88 OnDateSetListener callBack, 89 int year, 90 int monthOfYear, 91 int dayOfMonth, 92 boolean yearOptional) { 93 // Don't pass a theme id. Instead use the default alert dialog theme. 94 this(context, /* themeId = */ 0, callBack, year, monthOfYear, dayOfMonth, 95 yearOptional); 96 } 97 98 /** 99 * @param context The context the dialog is to run in. 100 * @param theme the theme to apply to this dialog 101 * @param callBack How the parent is notified that the date is set. 102 * @param year The initial year of the dialog or {@link DatePickerDialog#NO_YEAR} if no 103 * year has been specified. 104 * @param monthOfYear The initial month of the dialog. 105 * @param dayOfMonth The initial day of the dialog. 106 * @param yearOptional Whether the year can be toggled by the user 107 */ 108 public DatePickerDialog(Context context, 109 int theme, 110 OnDateSetListener callBack, 111 int year, 112 int monthOfYear, 113 int dayOfMonth, 114 boolean yearOptional) { 115 super(context, theme); 116 117 mCallBack = callBack; 118 mInitialYear = year; 119 mInitialMonth = monthOfYear; 120 mInitialDay = dayOfMonth; 121 122 mTitleDateFormat = DateFormat.getDateInstance(DateFormat.FULL); 123 mTitleNoYearDateFormat = DateUtils.getLocalizedDateFormatWithoutYear(getContext()); 124 updateTitle(mInitialYear, mInitialMonth, mInitialDay); 125 126 setButton(BUTTON_POSITIVE, context.getText(R.string.date_time_set), 127 this); 128 setButton(BUTTON_NEGATIVE, context.getText(android.R.string.cancel), 129 (OnClickListener) null); 130 131 LayoutInflater inflater = 132 (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 133 View view = inflater.inflate(R.layout.date_picker_dialog, null); 134 setView(view); 135 mDatePicker = (DatePicker) view.findViewById(R.id.datePicker); 136 mDatePicker.init(mInitialYear, mInitialMonth, mInitialDay, yearOptional, this); 137 } 138 139 @Override 140 public void onClick(DialogInterface dialog, int which) { 141 if (mCallBack != null) { 142 mDatePicker.clearFocus(); 143 mCallBack.onDateSet(mDatePicker, mDatePicker.getYear(), 144 mDatePicker.getMonth(), mDatePicker.getDayOfMonth()); 145 } 146 } 147 148 @Override 149 public void onDateChanged(DatePicker view, int year, int month, int day) { 150 updateTitle(year, month, day); 151 } 152 153 private void updateTitle(int year, int month, int day) { 154 final Calendar calendar = Calendar.getInstance(); 155 calendar.set(Calendar.YEAR, year); 156 calendar.set(Calendar.MONTH, month); 157 calendar.set(Calendar.DAY_OF_MONTH, day); 158 final DateFormat dateFormat = 159 year == NO_YEAR ? mTitleNoYearDateFormat : mTitleDateFormat; 160 setTitle(dateFormat.format(calendar.getTime())); 161 } 162 163 @Override 164 public Bundle onSaveInstanceState() { 165 Bundle state = super.onSaveInstanceState(); 166 state.putInt(YEAR, mDatePicker.getYear()); 167 state.putInt(MONTH, mDatePicker.getMonth()); 168 state.putInt(DAY, mDatePicker.getDayOfMonth()); 169 state.putBoolean(YEAR_OPTIONAL, mDatePicker.isYearOptional()); 170 return state; 171 } 172 173 @Override 174 public void onRestoreInstanceState(Bundle savedInstanceState) { 175 super.onRestoreInstanceState(savedInstanceState); 176 int year = savedInstanceState.getInt(YEAR); 177 int month = savedInstanceState.getInt(MONTH); 178 int day = savedInstanceState.getInt(DAY); 179 boolean yearOptional = savedInstanceState.getBoolean(YEAR_OPTIONAL); 180 mDatePicker.init(year, month, day, yearOptional, this); 181 updateTitle(year, month, day); 182 } 183 } 184
