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