Android:为什么系统重启后警报通知停止

Question

我正在开发一个应该每天发出五次警报的 android 应用程序:
- 每天的时间不是固定的
- 闹钟响起后，我会安排下一次闹钟。

我的问题是:警报通知工作 1 天然后停止，而且当设备重新启动两次时通知不起作用，我现在不知道是否有其他方法可以做到这一点，任何帮助都会非常感激!

代码: 我有调用广播接收器的功能

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 list 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>

Answer 1

why did the Alarm notification stop after system reboot

因为警报计划在重新启动时被清除。如果您想让闹钟在重启后再次响起，您将需要实现一个响应 RECEIVE_BOOT_COMPLETED 广播的 BroadcastReceiver。 my WakefulIntentService repo 中的demo/ 项目证明了这一点。