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.RestrictedPreference; 30 import com.android.settingslib.core.AbstractPreferenceController; 31 32 import java.util.Calendar; 33 34 public class TimePreferenceController extends AbstractPreferenceController 35 implements PreferenceControllerMixin, TimePickerDialog.OnTimeSetListener { 36 37 public interface TimePreferenceHost extends UpdateTimeAndDateCallback { showTimePicker()38 void showTimePicker(); 39 } 40 41 public static final int DIALOG_TIMEPICKER = 1; 42 43 private static final String KEY_TIME = "time"; 44 45 private final AutoTimePreferenceController mAutoTimePreferenceController; 46 private final TimePreferenceHost mHost; 47 48 TimePreferenceController(Context context, TimePreferenceHost callback, AutoTimePreferenceController autoTimePreferenceController)49 public TimePreferenceController(Context context, 50 TimePreferenceHost callback, 51 AutoTimePreferenceController autoTimePreferenceController) { 52 super(context); 53 mHost = callback; 54 mAutoTimePreferenceController = autoTimePreferenceController; 55 } 56 57 @Override isAvailable()58 public boolean isAvailable() { 59 return true; 60 } 61 62 @Override updateState(Preference preference)63 public void updateState(Preference preference) { 64 if (!(preference instanceof RestrictedPreference)) { 65 return; 66 } 67 final Calendar now = Calendar.getInstance(); 68 preference.setSummary(DateFormat.getTimeFormat(mContext).format(now.getTime())); 69 if (!((RestrictedPreference) preference).isDisabledByAdmin()) { 70 preference.setEnabled(!mAutoTimePreferenceController.isEnabled()); 71 } 72 } 73 74 @Override handlePreferenceTreeClick(Preference preference)75 public boolean handlePreferenceTreeClick(Preference preference) { 76 if (!TextUtils.equals(KEY_TIME, preference.getKey())) { 77 return false; 78 } 79 mHost.showTimePicker(); 80 return true; 81 } 82 83 @Override getPreferenceKey()84 public String getPreferenceKey() { 85 return KEY_TIME; 86 } 87 88 @Override onTimeSet(TimePicker view, int hourOfDay, int minute)89 public void onTimeSet(TimePicker view, int hourOfDay, int minute) { 90 if (mContext != null) { 91 setTime(hourOfDay, minute); 92 mHost.updateTimeAndDateDisplay(mContext); 93 } 94 // We don't need to call timeUpdated() here because the TIME_CHANGED 95 // broadcast is sent by the AlarmManager as a side effect of setting the 96 // SystemClock time. 97 } 98 buildTimePicker(Activity activity)99 public TimePickerDialog buildTimePicker(Activity activity) { 100 final Calendar calendar = Calendar.getInstance(); 101 return new TimePickerDialog( 102 activity, 103 this, 104 calendar.get(Calendar.HOUR_OF_DAY), 105 calendar.get(Calendar.MINUTE), 106 DateFormat.is24HourFormat(activity)); 107 } 108 setTime(int hourOfDay, int minute)109 void setTime(int hourOfDay, int minute) { 110 Calendar c = Calendar.getInstance(); 111 112 c.set(Calendar.HOUR_OF_DAY, hourOfDay); 113 c.set(Calendar.MINUTE, minute); 114 c.set(Calendar.SECOND, 0); 115 c.set(Calendar.MILLISECOND, 0); 116 long when = Math.max(c.getTimeInMillis(), TimePreferenceHost.MIN_DATE); 117 118 if (when / 1000 < Integer.MAX_VALUE) { 119 ((AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE)).setTime(when); 120 } 121 } 122 } 123