1/* 2 * Copyright (C) 2014 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 17package com.android.systemui.statusbar.policy; 18 19import android.app.AlarmManager; 20import android.content.BroadcastReceiver; 21import android.content.Context; 22import android.content.Intent; 23import android.content.IntentFilter; 24import android.os.UserHandle; 25 26import com.android.systemui.statusbar.policy.NextAlarmController.NextAlarmChangeCallback; 27 28import java.io.FileDescriptor; 29import java.io.PrintWriter; 30import java.util.ArrayList; 31 32public class NextAlarmControllerImpl extends BroadcastReceiver 33 implements NextAlarmController { 34 35 private final ArrayList<NextAlarmChangeCallback> mChangeCallbacks = new ArrayList<>(); 36 37 private AlarmManager mAlarmManager; 38 private AlarmManager.AlarmClockInfo mNextAlarm; 39 40 public NextAlarmControllerImpl(Context context) { 41 mAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 42 IntentFilter filter = new IntentFilter(); 43 filter.addAction(Intent.ACTION_USER_SWITCHED); 44 filter.addAction(AlarmManager.ACTION_NEXT_ALARM_CLOCK_CHANGED); 45 context.registerReceiverAsUser(this, UserHandle.ALL, filter, null, null); 46 updateNextAlarm(); 47 } 48 49 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 50 pw.println("NextAlarmController state:"); 51 pw.print(" mNextAlarm="); pw.println(mNextAlarm); 52 } 53 54 public void addCallback(NextAlarmChangeCallback cb) { 55 mChangeCallbacks.add(cb); 56 cb.onNextAlarmChanged(mNextAlarm); 57 } 58 59 public void removeCallback(NextAlarmChangeCallback cb) { 60 mChangeCallbacks.remove(cb); 61 } 62 63 public void onReceive(Context context, Intent intent) { 64 final String action = intent.getAction(); 65 if (action.equals(Intent.ACTION_USER_SWITCHED) 66 || action.equals(AlarmManager.ACTION_NEXT_ALARM_CLOCK_CHANGED)) { 67 updateNextAlarm(); 68 } 69 } 70 71 private void updateNextAlarm() { 72 mNextAlarm = mAlarmManager.getNextAlarmClock(UserHandle.USER_CURRENT); 73 fireNextAlarmChanged(); 74 } 75 76 private void fireNextAlarmChanged() { 77 int n = mChangeCallbacks.size(); 78 for (int i = 0; i < n; i++) { 79 mChangeCallbacks.get(i).onNextAlarmChanged(mNextAlarm); 80 } 81 } 82} 83