我已经提到了下列问题,但找不到答案:
Can't get service object (onServiceConnected never called)
onServiceConnected not getting called , getting a null pointer exception
onServiceConnected never called after bindService method
这是我的代码:
@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
}
}
我的服务类没有包含任何内容,只有这么多,我已经在下面展示了
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
}
}
但在lolcat中,我只从onbind()函数获取“
bound
”消息,而不打印“Pod: Service Connected
”,这意味着服务已成功启动。在lolcat中,我得到了
NullPointerException
并且在manifest文件中也提到了它。 最佳答案
我重写了服务类,以便onbind()以如下方式返回ibinder。
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
}
}
现在它开始工作了。
关于android - OnServiceConnected没有被调用,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/14936225/