CalendarReceiver.java revision 83512315d187baad2c9dc3ed686cc23676c9f463 
1/*
2** Copyright 2006, 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** See the License for the specific language governing permissions and
13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14** limitations under the License.
15*/
16
17package com.android.providers.calendar;
18
19import android.content.BroadcastReceiver;
20import android.content.ContentResolver;
21import android.content.Context;
22import android.content.Intent;
23
24/**
25 * This IntentReceiver executes when the boot completes and ensures that
26 * the Calendar provider has started and then initializes the alarm
27 * scheduler for the Calendar provider.  This needs to be done after
28 * the boot completes because the alarm manager may not have been started
29 * yet.
30 */
31public class CalendarReceiver extends BroadcastReceiver {
32
33    static final String SCHEDULE = "com.android.providers.calendar.SCHEDULE_ALARM";
34
35    @Override
36    public void onReceive(Context context, Intent intent) {
37        String action = intent.getAction();
38        ContentResolver cr = context.getContentResolver();
39        if (action.equals(SCHEDULE)) {
40            cr.update(CalendarProvider2.SCHEDULE_ALARM_URI, null /* values */, null /* where */,
41                    null /* selectionArgs */);
42        } else if (action.equals(Intent.ACTION_BOOT_COMPLETED)) {
43            // Remove alarms from the CalendarAlerts table that have been marked
44            // as "scheduled" but not fired yet.  We do this because the
45            // AlarmManagerService loses all information about alarms when the
46            // power turns off but we store the information in a database table
47            // that persists across reboots. See the documentation for
48            // scheduleNextAlarmLocked() for more information.
49            cr.update(CalendarProvider2.SCHEDULE_ALARM_REMOVE_URI,
50                    null /* values */, null /* where */, null /* selectionArgs */);
51        }
52    }
53}
54