来自服务的AlarmManager

Question

我有一个后台服务启动和AlaramManager。 我已经在AlarmManager触发时记录并看到它只在应用程序没有活动运行时触发，并且唯一运行的是后台服务.. 那是为什么？

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    if (app.isApplicationInitilized())
    {
        //stopAlarmManager();
        server.start();
        startAlarmManager();            
    }
    return START_NOT_STICKY;
}


public void startAlarmManager()
{       
    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() + (10*1000), 10*1000, alarmPendingIntent);
}

private void setAlarmManager() {
    alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
    Intent intent = new Intent(this, AlarmManagerReceiver.class);       
    alarmPendingIntent = PendingIntent.getBroadcast(this, 8258, intent, PendingIntent.FLAG_CANCEL_CURRENT);

}