1 /* 2 * Copyright (C) 2016 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.settings.datetime; 18 19 import android.app.Activity; 20 import android.app.AlarmManager; 21 import android.app.TimePickerDialog; 22 import android.content.Context; 23 import android.support.v7.preference.Preference; 24 import android.text.TextUtils; 25 import android.text.format.DateFormat; 26 import android.widget.TimePicker; 27 28 import com.android.settings.core.PreferenceControllerMixin; 29 import com.android.settingslib.core.AbstractPreferenceController; 30 31 import java.util.Calendar; 32 33 public class TimePreferenceController extends AbstractPreferenceController 34 implements PreferenceControllerMixin, TimePickerDialog.OnTimeSetListener { 35 36 public interface TimePreferenceHost extends UpdateTimeAndDateCallback { 37 void showTimePicker(); 38 } 39 40 public static final int DIALOG_TIMEPICKER = 1; 41 42 private static final String KEY_TIME = "time"; 43 44 private final AutoTimePreferenceController mAutoTimePreferenceController; 45 private final TimePreferenceHost mHost; 46 47 48 public TimePreferenceController(Context context, 49 TimePreferenceHost callback, 50 AutoTimePreferenceController autoTimePreferenceController) { 51 super(context); 52 mHost = callback; 53 mAutoTimePreferenceController = autoTimePreferenceController; 54 } 55 56 @Override 57 public boolean isAvailable() { 58 return true; 59 } 60 61 @Override 62 public void updateState(Preference preference) { 63 final Calendar now = Calendar.getInstance(); 64 preference.setSummary(DateFormat.getTimeFormat(mContext).format(now.getTime())); 65 preference.setEnabled(!mAutoTimePreferenceController.isEnabled()); 66 } 67 68 @Override 69 public boolean handlePreferenceTreeClick(Preference preference) { 70 if (!TextUtils.equals(KEY_TIME, preference.getKey())) { 71 return false; 72 } 73 mHost.showTimePicker(); 74 return true; 75 } 76 77 @Override 78 public String getPreferenceKey() { 79 return KEY_TIME; 80 } 81 82 @Override 83 public void onTimeSet(TimePicker view, int hourOfDay, int minute) { 84 if (mContext != null) { 85 setTime(hourOfDay, minute); 86 mHost.updateTimeAndDateDisplay(mContext); 87 } 88 // We don't need to call timeUpdated() here because the TIME_CHANGED 89 // broadcast is sent by the AlarmManager as a side effect of setting the 90 // SystemClock time. 91 } 92 93 public TimePickerDialog buildTimePicker(Activity activity) { 94 final Calendar calendar = Calendar.getInstance(); 95 return new TimePickerDialog( 96 activity, 97 this, 98 calendar.get(Calendar.HOUR_OF_DAY), 99 calendar.get(Calendar.MINUTE), 100 DateFormat.is24HourFormat(activity)); 101 } 102 103 void setTime(int hourOfDay, int minute) { 104 Calendar c = Calendar.getInstance(); 105 106 c.set(Calendar.HOUR_OF_DAY, hourOfDay); 107 c.set(Calendar.MINUTE, minute); 108 c.set(Calendar.SECOND, 0); 109 c.set(Calendar.MILLISECOND, 0); 110 long when = Math.max(c.getTimeInMillis(), TimePreferenceHost.MIN_DATE); 111 112 if (when / 1000 < Integer.MAX_VALUE) { 113 ((AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE)).setTime(when); 114 } 115 } 116 } 117