作者:徐建祥(netpirate@gmail.com)
日期:2010/01/06
网址:http://www.anymobile.org
1/ set a alarm clock
1.1 update alarms.db
1.2 update com.android.alarmclock_preferences.xml
1.3 update Settings.System.NEXT_ALARM_FORMATTED for status bar
1.4 set Kernel RTC alarm or send a message if no driver
flow:
com.android.alarmclock.AlarmClock.onCreate() -> SetAlarm.onPreferenceTreeClick() -> SetAlarm.saveAlarm() ->
Alarm.setAlarm() -> Alarm.setNextAlert() -> Alarm.enableAlert(ALARM_ALERT_ACTION)/saveNextAlarm(Settings.System.NEXT_ALARM_FORMATTED) ->
android.app.AlarmManager.set() -> AlarmManagerService.set() -> AlarmManagerService.setRepeating -> AlarmManagerService.setLocked() ->
android.app.IAlarmManager.set() -> RTC.save()// /dev/alarms
2/ play a clarm clock
flow:
RTC (WAKEUP) -> AlarmReceiver.onReceive(ALARM_ALERT_ACTION) -> AlarmAlert.onCreate() ->
AlarmAlertWakeLock.acquire()/KeyguardManager.newKeyguardLock().disableKeyguard() ->
AlarmKlaxon.postPlay() -> AlarmKlaxon.KillerCallback().onKilled() -> AlarmAlert.dismiss() ->
AlarmAlertWakeLock.release()/KeyguardManager.newKeyguardLock().reenableKeyguard()
some description:
/**
* Days of week coded as single int, convenient for DB storage:
*
* 0x00: no day
* 0x01: Monday
* 0x02: Tuesday
* 0x04: Wednesday
* 0x08: Thursday
* 0x10: Friday
* 0x20: Saturday
* 0x40: Sunday
*/
/**
* Alarm type
*
* ELAPSED_REALTIME Alarm time in time since boot, including sleep, This alarm does not wake the device up.
* ELAPSED_REALTIME_WAKEUP Alarm time in time since boot, including sleep, This alarm will wake up the device when it goes off.
* RTC Alarm time in wall clock time in UTC, This alarm does not wake the device up.
* RTC_WAKEUP Alarm time in wall clock time in UTC, This alarm will wake up the device when it goes off.
*/
db example:
# cat /data/data/com.android.alarmclock/shared_prefs/com.android.alarmclock_preferences.xml
1 <?xml version='1.0' encoding='utf-8' standalone='yes' ?>
2 <map>
3 <string name="label">警报</string>
4 <boolean name="vibrate" value="true" />
5 <boolean name="on" value="true" />
6 </map>
# sqlite3 /data/data/com.android.alarmclock/databases/alarms.db
SQLite version 3.5.9
Enter ".help" for instructions
sqlite> .tables
alarms android_metadata
sqlite> .schema alarms
CREATE TABLE alarms (_id INTEGER PRIMARY KEY,hour INTEGER, minutes INTEGER, daysofweek INTEGER, alarmtime INTEGER, enabled INTEGER, vibrate INTEGER, message TEXT, alert TEXT);
sqlite> select * from alarms;
1|7|0|127|0|0|1||
2|8|30|31|1262766600000|1|1|警报|content://media/internal/audio/media/21
3|9|0|0|0|0|1||
posted on 2010-01-06 17:27
Xu Jianxiang 阅读(3927)
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