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