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.text.TextUtils; 24 import android.text.format.DateFormat; 25 import android.widget.TimePicker; 26 27 import androidx.preference.Preference; 28 29 import com.android.settings.core.PreferenceControllerMixin; 30 import com.android.settingslib.RestrictedPreference; 31 import com.android.settingslib.core.AbstractPreferenceController; 32 33 import java.util.Calendar; 34 35 public class TimePreferenceController extends AbstractPreferenceController 36 implements PreferenceControllerMixin, TimePickerDialog.OnTimeSetListener { 37 38 public interface TimePreferenceHost extends UpdateTimeAndDateCallback { showTimePicker()39 void showTimePicker(); 40 } 41 42 public static final int DIALOG_TIMEPICKER = 1; 43 44 private static final String KEY_TIME = "time"; 45 46 private final AutoTimePreferenceController mAutoTimePreferenceController; 47 private final TimePreferenceHost mHost; 48 49 TimePreferenceController(Context context, TimePreferenceHost callback, AutoTimePreferenceController autoTimePreferenceController)50 public TimePreferenceController(Context context, 51 TimePreferenceHost callback, 52 AutoTimePreferenceController autoTimePreferenceController) { 53 super(context); 54 mHost = callback; 55 mAutoTimePreferenceController = autoTimePreferenceController; 56 } 57 58 @Override isAvailable()59 public boolean isAvailable() { 60 return true; 61 } 62 63 @Override updateState(Preference preference)64 public void updateState(Preference preference) { 65 if (!(preference instanceof RestrictedPreference)) { 66 return; 67 } 68 final Calendar now = Calendar.getInstance(); 69 preference.setSummary(DateFormat.getTimeFormat(mContext).format(now.getTime())); 70 if (!((RestrictedPreference) preference).isDisabledByAdmin()) { 71 preference.setEnabled(!mAutoTimePreferenceController.isEnabled()); 72 } 73 } 74 75 @Override handlePreferenceTreeClick(Preference preference)76 public boolean handlePreferenceTreeClick(Preference preference) { 77 if (!TextUtils.equals(KEY_TIME, preference.getKey())) { 78 return false; 79 } 80 mHost.showTimePicker(); 81 return true; 82 } 83 84 @Override getPreferenceKey()85 public String getPreferenceKey() { 86 return KEY_TIME; 87 } 88 89 @Override onTimeSet(TimePicker view, int hourOfDay, int minute)90 public void onTimeSet(TimePicker view, int hourOfDay, int minute) { 91 if (mContext != null) { 92 setTime(hourOfDay, minute); 93 mHost.updateTimeAndDateDisplay(mContext); 94 } 95 // We don't need to call timeUpdated() here because the TIME_CHANGED 96 // broadcast is sent by the AlarmManager as a side effect of setting the 97 // SystemClock time. 98 } 99 buildTimePicker(Activity activity)100 public TimePickerDialog buildTimePicker(Activity activity) { 101 final Calendar calendar = Calendar.getInstance(); 102 return new TimePickerDialog( 103 activity, 104 this, 105 calendar.get(Calendar.HOUR_OF_DAY), 106 calendar.get(Calendar.MINUTE), 107 DateFormat.is24HourFormat(activity)); 108 } 109 setTime(int hourOfDay, int minute)110 void setTime(int hourOfDay, int minute) { 111 Calendar c = Calendar.getInstance(); 112 113 c.set(Calendar.HOUR_OF_DAY, hourOfDay); 114 c.set(Calendar.MINUTE, minute); 115 c.set(Calendar.SECOND, 0); 116 c.set(Calendar.MILLISECOND, 0); 117 long when = Math.max(c.getTimeInMillis(), TimePreferenceHost.MIN_DATE); 118 119 if (when / 1000 < Integer.MAX_VALUE) { 120 ((AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE)).setTime(when); 121 } 122 } 123 } 124