Question

我正在使用带有通知的前台服务。我通过调用stopForeground和stopService在主要活动的onDestroy方法中删除该服务。问题是，当我从最近的应用程序中删除我的应用程序以杀死它时，调试会话仍在运行，而当我重新启动该应用程序时，MyApplication的onCreate方法将扩展为Application类而不调用。

我在这里看到答案 https://stackoverflow.com/a/53334788/10069542

<service
android:enabled="true"
android:name=".ExampleService"
android:exported="false"
android:stopWithTask="true" />

当我编写android：stopWithTask =“ true”时，它在android OS版本9及更低版本中可以正常工作，但在android OS版本10中则无法正常工作。当我编写android：stopWithTask =“ false”时很奇怪，它在android OS版本10中可以正常工作，但在其他任何版本上均不工作。

package com.example.myapplication;
import android.app.Notification;
import android.app.NotificationChannel;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.drawable.BitmapDrawable;
import android.os.IBinder;
import android.util.Log;

public class MyService extends Service {
private final String  VIDEO_SERVICE_CHANNEL = 
"VIDEO_SERVICE_CHANNEL";
public static final String TAG = "v_call";

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

@Override
public void onCreate() {
    super.onCreate();
    Log.i(TAG, "MyService onCreate()");
    startForeground(1, getMyNotification("Riaz"));
}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
    Log.i(TAG, "MyService onStartCommand()");
    return START_NOT_STICKY;
}

@Override
public void onTaskRemoved(Intent rootIntent) {
    super.onTaskRemoved(rootIntent);
    Log.i(TAG, "MyService onTaskRemoved()");
    this.stopSelf();
}

@Override
public void onDestroy() {
    super.onDestroy();
    Log.i(TAG, "MyService onDestroy()");
    this.stopSelf();
}

@Override
public void onLowMemory() {
    super.onLowMemory();
    Log.i(TAG, "onLowMemory()");
}

private Notification getMyNotification(String userName){
    NotificationManager notificationManager = (NotificationManager) getApplicationContext().getSystemService(Context.NOTIFICATION_SERVICE);
    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
        NotificationChannel mChannel = new NotificationChannel(VIDEO_SERVICE_CHANNEL, getApplicationContext().getString(R.string.room_notification_channel_title), NotificationManager.IMPORTANCE_LOW);
        if (notificationManager != null) {
            notificationManager.createNotificationChannel(mChannel);
        }
    }
    Intent intent = new Intent(this, MainActivity.class);
    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    CharSequence title = getApplicationContext().getString(R.string.room_notification_title);
    PendingIntent contentIntent = PendingIntent.getActivity(this,
            0,intent , 0);



    return new Notification.Builder(this,VIDEO_SERVICE_CHANNEL)
            .setContentTitle(title)
            .setSmallIcon(R.mipmap.ic_launcher)
            .setContentIntent(contentIntent).build();
}}

活动代码

public class MainActivity extends AppCompatActivity {
Intent mServiceIntent;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
}

@Override
protected void onStart() {
    super.onStart();
    Log.i(MyService.TAG, "MainActivity onStart()");
    mServiceIntent = new Intent(MainActivity.this, MyService.class);
    startVideoService();
}

@Override
protected void onDestroy() {
    super.onDestroy();
    Log.i(MyService.TAG, "MainActivity onDestroy()");
    stopService(mServiceIntent);
}

private void startVideoService() {
    Log.i(MyService.TAG, "startVideoService()");

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        startForegroundService(mServiceIntent);
    } else {
        startService(mServiceIntent);
    }

}}

请问有什么想法吗？

预先感谢

Answer 1

@覆盖 public void onTaskRemoved(Intent rootIntent) {

    Intent intentz = new Intent(this, MapService.class);
    stopService(intentz);

    super.onTaskRemoved(rootIntent);
}

Answer 2

我遇到了同样的问题，通过这种方式解决了...

@Override
public void onTaskRemoved(Intent rootIntent) {
   
   Intent intentz = new Intent(this, MapService.class);
   
   stopService(intentz);

   super.onTaskRemoved(rootIntent);
}

应用终止后如何停止前台服务？

2 个答案: