Android:为什么在系统重启后警报通知会停止

时间:2011-08-14 11:05:49

标签: android android-manifest broadcastreceiver alarmmanager android-alarms

我正在开发一个Android应用程序,它应该每天发出五次警报:
- 每天的时间不恒定 - 警报发出后,我将安排下一次警报。

我的问题是:警报通知工作1天然后停止,并且当设备重新启动两次通知不起作用时,我现在不知道如果还有其他方法可以做到这一点,任何帮助都将是非常感激!

代码: 我有这个功能来调用广播接收器

public static void Start_Notifying(Context context){             
    Calendar cal = Calendar.getInstance();
    cal.setTimeInMillis(System.currentTimeMillis());
    cal.add(Calendar.HOUR_OF_DAY,hour);
    cal.add(Calendar.MINUTE, min);      
    Intent intent = new Intent(context,  OnetimeAlarmReceiver.class);
    intent.setAction("START_NOTIFYING");
    PendingIntent pendingIntent = PendingIntent.getBroadcast(context, notify.REQUEST_CODE, intent,0);
    AlarmManager alarmManager = (AlarmManager) context.getSystemService(ALARM_SERVICE);
    alarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis() , pendingIntent); 
    SaveAlarmManager(alarmManager, pendingIntent);

}

oneTimeAlarmReciever的代码

public void onReceive(Context context, Intent intent) {     
    main_menu.con = context;                
    Notification notifyDetails;
    NotificationManager nm = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);
    notifyDetails = new Notification(R.drawable.icon,s1,System.currentTimeMillis());
    PendingIntent pendingIntent = PendingIntent.getActivity(context, REQUEST_CODE, new Intent(context, prayertimes.class), 0);
    notifyDetails.setLatestEventInfo(context,s2+ notify.prayName , s3, pendingIntent);
    notifyDetails.sound=Uri.parse(PlaySound());
    nm.notify(NOTIFICATION_ID, notifyDetails);                          
    main_menu.notify_me();
}

notify_me()的代码

static void notify_me() {               
    hour =pTime.num1;
    min =pTime.num2;                
    Start_Notifying(con);
}

在清单文件中

<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"></uses-permission>

<receiver class =".OnetimeAlarmReceiver" android:name="OnetimeAlarmReceiver">
    <intent-filter>
        <action android:name="START_NOTIFYING" />
        <action android:name="android.intent.action.BOOT_COMPLETED"> </action>
        <data android:mimeType="audio/ogg" />
    </intent-filter>
</receiver>

1 个答案:

答案 0 :(得分:25)

  

为什么警报通知在系统重启后停止

因为警报计划在重新启动时被清除。如果您希望在重新启动后再次启动警报,则需要实现响应BroadcastReceiver广播的RECEIVE_BOOT_COMPLETEDmy WakefulIntentService repo中的demo/项目证明了这一点。