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 android.app; 18 19 import android.content.Context; 20 import android.content.DialogInterface; 21 import android.content.DialogInterface.OnClickListener; 22 import android.os.Bundle; 23 import android.text.format.DateFormat; 24 import android.view.LayoutInflater; 25 import android.view.View; 26 import android.widget.TimePicker; 27 import android.widget.TimePicker.OnTimeChangedListener; 28 29 import com.android.internal.R; 30 31 import java.util.Calendar; 32 33 /** 34 * A dialog that prompts the user for the time of day using a {@link TimePicker}. 35 * 36 * <p>See the <a href="{@docRoot}resources/tutorials/views/hello-timepicker.html">Time Picker 37 * tutorial</a>.</p> 38 */ 39 public class TimePickerDialog extends AlertDialog implements OnClickListener, 40 OnTimeChangedListener { 41 42 /** 43 * The callback interface used to indicate the user is done filling in 44 * the time (they clicked on the 'Set' button). 45 */ 46 public interface OnTimeSetListener { 47 48 /** 49 * @param view The view associated with this listener. 50 * @param hourOfDay The hour that was set. 51 * @param minute The minute that was set. 52 */ 53 void onTimeSet(TimePicker view, int hourOfDay, int minute); 54 } 55 56 private static final String HOUR = "hour"; 57 private static final String MINUTE = "minute"; 58 private static final String IS_24_HOUR = "is24hour"; 59 60 private final TimePicker mTimePicker; 61 private final OnTimeSetListener mCallback; 62 private final Calendar mCalendar; 63 private final java.text.DateFormat mDateFormat; 64 65 int mInitialHourOfDay; 66 int mInitialMinute; 67 boolean mIs24HourView; 68 69 /** 70 * @param context Parent. 71 * @param callBack How parent is notified. 72 * @param hourOfDay The initial hour. 73 * @param minute The initial minute. 74 * @param is24HourView Whether this is a 24 hour view, or AM/PM. 75 */ 76 public TimePickerDialog(Context context, 77 OnTimeSetListener callBack, 78 int hourOfDay, int minute, boolean is24HourView) { 79 this(context, com.android.internal.R.style.Theme_Dialog_Alert, 80 callBack, hourOfDay, minute, is24HourView); 81 } 82 83 /** 84 * @param context Parent. 85 * @param theme the theme to apply to this dialog 86 * @param callBack How parent is notified. 87 * @param hourOfDay The initial hour. 88 * @param minute The initial minute. 89 * @param is24HourView Whether this is a 24 hour view, or AM/PM. 90 */ 91 public TimePickerDialog(Context context, 92 int theme, 93 OnTimeSetListener callBack, 94 int hourOfDay, int minute, boolean is24HourView) { 95 super(context, theme); 96 mCallback = callBack; 97 mInitialHourOfDay = hourOfDay; 98 mInitialMinute = minute; 99 mIs24HourView = is24HourView; 100 101 mDateFormat = DateFormat.getTimeFormat(context); 102 mCalendar = Calendar.getInstance(); 103 updateTitle(mInitialHourOfDay, mInitialMinute); 104 105 setButton(context.getText(R.string.date_time_set), this); 106 setButton2(context.getText(R.string.cancel), (OnClickListener) null); 107 setIcon(R.drawable.ic_dialog_time); 108 109 LayoutInflater inflater = 110 (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 111 View view = inflater.inflate(R.layout.time_picker_dialog, null); 112 setView(view); 113 mTimePicker = (TimePicker) view.findViewById(R.id.timePicker); 114 115 // initialize state 116 mTimePicker.setCurrentHour(mInitialHourOfDay); 117 mTimePicker.setCurrentMinute(mInitialMinute); 118 mTimePicker.setIs24HourView(mIs24HourView); 119 mTimePicker.setOnTimeChangedListener(this); 120 } 121 122 public void onClick(DialogInterface dialog, int which) { 123 if (mCallback != null) { 124 mTimePicker.clearFocus(); 125 mCallback.onTimeSet(mTimePicker, mTimePicker.getCurrentHour(), 126 mTimePicker.getCurrentMinute()); 127 } 128 } 129 130 public void onTimeChanged(TimePicker view, int hourOfDay, int minute) { 131 updateTitle(hourOfDay, minute); 132 } 133 134 public void updateTime(int hourOfDay, int minutOfHour) { 135 mTimePicker.setCurrentHour(hourOfDay); 136 mTimePicker.setCurrentMinute(minutOfHour); 137 } 138 139 private void updateTitle(int hour, int minute) { 140 mCalendar.set(Calendar.HOUR_OF_DAY, hour); 141 mCalendar.set(Calendar.MINUTE, minute); 142 setTitle(mDateFormat.format(mCalendar.getTime())); 143 } 144 145 @Override 146 public Bundle onSaveInstanceState() { 147 Bundle state = super.onSaveInstanceState(); 148 state.putInt(HOUR, mTimePicker.getCurrentHour()); 149 state.putInt(MINUTE, mTimePicker.getCurrentMinute()); 150 state.putBoolean(IS_24_HOUR, mTimePicker.is24HourView()); 151 return state; 152 } 153 154 @Override 155 public void onRestoreInstanceState(Bundle savedInstanceState) { 156 super.onRestoreInstanceState(savedInstanceState); 157 int hour = savedInstanceState.getInt(HOUR); 158 int minute = savedInstanceState.getInt(MINUTE); 159 mTimePicker.setCurrentHour(hour); 160 mTimePicker.setCurrentMinute(minute); 161 mTimePicker.setIs24HourView(savedInstanceState.getBoolean(IS_24_HOUR)); 162 mTimePicker.setOnTimeChangedListener(this); 163 updateTitle(hour, minute); 164 } 165 } 166