OnServiceConnected没有被调用

Question

我认为Can't get service object (onServiceConnected never called)，onServiceConnected not getting called , getting a null pointer exception和onServiceConnected never called after bindService method并没有找到答案。

这里是我的代码

@Override 
    public void onStart() { 
     super.onStart(); 
     Context context = getApplicationContext(); 
     Intent intent = new Intent(context, PodService.class); 
     context.bindService(intent, mPodServiceConn, Context.BIND_AUTO_CREATE); 

    } 




    private ServiceConnection mPodServiceConn = new ServiceConnection() { 
       @Override 
       public void onServiceConnected(ComponentName className, IBinder service) { 
        Log.e(TAG, "Pod: Service Connected"); 
        mPodService = IPodService.Stub.asInterface(service); //here i am getting NullPointerException 
       } 
     } 

和我的服务类包含什么，只有这么多，我已经展示了它吼叫

public class PodService extends Service { 
@Override 
    public IBinder onBind(Intent intent) { 
     // TODO Auto-generated method stub 
     Log.d("bound", "bound"); 
     return null; 
    } 

static class PodSeviceStub extends IPodService.Stub { 

//here i implemented unimplemented methods 

    } 
} 

但lolcat我得到只有“bound”从消息onBind（）函数，但不打印“Pod: Service Connected”，表示服务已成功启动。 和lolcat我得到NullPointerException，也在清单文件中提到。

Answer 1

我重写了服务类，以便onBind（）返回IBinder作为以下代码。

public class PodService extends Service { 
@Override 
    public IBinder onBind(Intent intent) { 

     Log.d("bound", "bound"); 
     return mBinder; // returns IBinder object 
    } 

    private final IBinder mBinder = new PodSeviceStub(this); 

static class PodSeviceStub extends IPodService.Stub { 

     WeakReference<PodService> mService; 

     public PodSeviceStub(PodService service) {// added a constructor for Stub here 
      mService = new WeakReference<PodService>(service); 
     } 
//here i implemented unimplemented methods 

    } 
} 

现在它工作。