在刷掉应用程序时,Android服务会被杀死

Question

我有一个Android Service类,其代码如下:

public class LoginService extends Service {
BroadcastReceiver wifiStateChangeReciever;

@Override
public IBinder onBind(Intent arg0) {
    return null;
}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    Log.i("AndroidLearning", "Service onStartCommand Started.");
    return Service.START_STICKY;
}

@Override
public void onCreate() {
    super.onCreate();
    Log.i("AndroidLearning", "Service Started.");

    final IntentFilter intentFilter = new IntentFilter();
    // intentFilter.addAction("android.net.wifi.WIFI_STATE_CHANGED");
    intentFilter.addAction("android.net.wifi.STATE_CHANGE");
    wifiStateChangeReciever = new WifiStateChangeReciever();
    this.registerReceiver(wifiStateChangeReciever, intentFilter, null, null);

    Log.i("AndroidLearning", "Reciever Registered.");
}

@Override
public void onDestroy() {
    Log.i("AndroidLearning", "Service Destroyed.");
    this.unregisterReceiver(wifiStateChangeReciever);
}

@Override
public void onTaskRemoved(Intent rootIntent) {
    Log.w("AndroidLearning", "On Task Remove: FLAG_STOP_WITH_TASK - "
            + ServiceInfo.FLAG_STOP_WITH_TASK);
    this.unregisterReceiver(wifiStateChangeReciever);
    Intent restartServiceIntent = new Intent(getApplicationContext(),
    this.getClass()); restartServiceIntent.setPackage(getPackageName());
    PendingIntent restartServicePendingIntent = PendingIntent.getService(
            getApplicationContext(), 1, restartServiceIntent, PendingIntent.FLAG_ONE_SHOT); 
    AlarmManager alarmService = (AlarmManager)this.getSystemService(Context.ALARM_SERVICE);
    alarmService.setExact(AlarmManager.ELAPSED_REALTIME_WAKEUP,
            SystemClock.elapsedRealtime() + 1000, restartServicePendingIntent); 
    Log.w("AndroidLearning", "End on task removed");
    super.onTaskRemoved(rootIntent);

}
}

它注册了一个BroadcastReciever.启动此服务的Activity具有以下代码:

Intent intent = new Intent(this, LoginService.class);
startService(intent);

但是,每当从任务列表(最近)中删除活动时,服务也会停止.我过来骑了解onTaskRemoved它,但它似乎仍然没有工作,AlarmManager永远不会启动pendingIntent.我尝试使用这两种方法:set并且setExact用于AlarmManager.

我还尝试将以下选项添加到<service>标记中

android:stopWithTask="false"
android:process=":remote"

但无济于事.

我在这做错了什么？谢谢您的帮助.

Answer 1

我终于找到了自己问题的答案.这似乎是我在手机(Mi UI)上运行的特定Android风格的问题.每个应用程序都有一个单独的设置,是否需要重新启动.

除非配置了此设置,否则任何更改权限和设置警报的数量都无济于事.