java - 安卓:java.lang.IllegalArgumentException:服务未注册

Question

我有启动服务并绑定(bind)它的 Activity 。但是我希望即使 Activity 关闭我的服务也能运行，所以我需要解除绑定(bind)。当我尝试这样做时(调用我的函数 disconnectFromService)，我总是得到这个异常。

服务已成功绑定(bind)，我可以与其通信。只有在绑定(bind)时我才尝试解除绑定(bind)服务。

我想，我尝试从相同的上下文绑定(bind)和解除绑定(bind)服务 - 这个 - 调用绑定(bind)和解除绑定(bind)来自 MainActivity 函数。

主要 Activity :

public class MainActivity extends AppCompatActivity {

private boolean bounded;
private SturkoPlayerService sturkoService;

...

//Connection
...
private ServiceConnection connection = new ServiceConnection() {
    @Override
    public void onServiceConnected(ComponentName name, IBinder service) {
        SturkoPlayerService.LocalBinder mBinder = (SturkoPlayerService.LocalBinder) service;
        sturkoService = mBinder.getService();
        bound = true;
        ...
        Log.d(DEBUG_S, "Service bind: " + (bounded && sturkoService!=null)); //Binding successful           
    }

    @Override
    public void onServiceDisconnected(ComponentName name) {
        bound = false;
        sturkoService = null;
    }
};
...


//Binding in MainActivity code
...
Intent startingIntent = new Intent(this, SturkoPlayerService.class);
startingIntent.setAction(SturkoPlayerService.PLAYER_START);
bindService(startingIntent, connection, Context.BIND_AUTO_CREATE);
...

//Unbinding
private void disconnectFromService() {
    if (sturkoService != null && bound) {
        ...
        this.unbindService(connection);
    }
}
...
}

服务:

public class SturkoPlayerService extends Service {
...
    public class LocalBinder extends Binder {
        public SturkoPlayerService getService() {
            return SturkoPlayerService.this;
        }
    }
...
}

编辑 1: 日志

04-14 11:57:51.873 2890-2890 D/sturkoPlayer: START
04-14 11:57:51.873 2890-2890 D/sturkoPlayer: Service bind: true
04-14 11:58:01.406 2890-2890 W/System.err: java.lang.IllegalArgumentException: Service not registered: ....MainActivity$1@4221e2d8
04-14 11:58:01.521 2890-2890 W/System.err:     at android.app.LoadedApk.forgetServiceDispatcher(LoadedApk.java:947)
04-14 11:58:01.521 2890-2890 W/System.err:     at android.app.ContextImpl.unbindService(ContextImpl.java:1277)
04-14 11:58:01.522 2890-2890 W/System.err:     at android.content.ContextWrapper.unbindService(ContextWrapper.java:405)
04-14 11:58:01.522 2890-2890 W/System.err:     at ...MainActivity.disconnectFromService(MainActivity.java:122)
04-14 11:58:01.522 2890-2890 W/System.err:     at ...MainActivity.onStop(MainActivity.java:132)
04-14 11:58:01.522 2890-2890 W/System.err:     at android.app.Instrumentation.callActivityOnStop(Instrumentation.java:1210)
04-14 11:58:01.522 2890-2890 W/System.err:     at android.app.Activity.performStop(Activity.java:5158)
04-14 11:58:01.523 2890-2890 W/System.err:     at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:3397)
04-14 11:58:01.523 2890-2890 W/System.err:     at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:3456)
04-14 11:58:01.525 2890-2890 W/System.err:     at android.app.ActivityThread.access$1200(ActivityThread.java:149)
04-14 11:58:01.526 2890-2890 W/System.err:     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1353)
04-14 11:58:01.527 2890-2890 W/System.err:     at android.os.Handler.dispatchMessage(Handler.java:99)
04-14 11:58:01.527 2890-2890 W/System.err:     at android.os.Looper.loop(Looper.java:153)
04-14 11:58:01.527 2890-2890 W/System.err:     at android.app.ActivityThread.main(ActivityThread.java:4987)
04-14 11:58:01.528 2890-2890 W/System.err:     at java.lang.reflect.Method.invokeNative(Native Method)
04-14 11:58:01.528 2890-2890 W/System.err:     at java.lang.reflect.Method.invoke(Method.java:511)
04-14 11:58:01.529 2890-2890 W/System.err:     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:821)
04-14 11:58:01.531 2890-2890 W/System.err:     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584)
04-14 11:58:01.541 2890-2890 W/System.err:     at dalvik.system.NativeStart.main(Native Method)

Edit2:在 list 中，在 Activity 中

<service
    android:name=".Service.SturkoPlayerService"
    android:enabled="true"
    android:exported="true"></service>

解决方案:

问题是，从 finish() 和 onStop() 调用了“disconnectFromService()”函数。所以它被调用了两次，当 Activity 即将结束时。

从 onStop() 中移除调用后，不再抛出异常。

不幸的是，这个错误只是我的愚蠢。

Answer 1

解决方案

问题是，disconnectFromService() 函数是从 finish() 和 onStop() 调用的。所以它被调用了两次，当 Activity 即将结束时。

从 onStop() 中移除调用后，不再抛出异常。

不幸的是，这个错误只是我的愚蠢。