ResultReceiver從服務到活動

Question

我有一個服務在後臺運行，從一個活動開始，沒有活動就開始工作。使用ResultReceiver，我可以與活動進行通信，但只要活動處於活動狀態即可。一旦下降並重新開始，就沒有任何通信返回到活動。我錯了什麼？

 // Activity 
      public void onReceiveResult(int resultCode, Bundle resultData) { 
      String test = resultData.getString("Event"); 
     } 
     public MyResultReceiver mReceiver; 

     @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     mReceiver = new MyResultReceiver(new Handler()); 
     mReceiver.setReceiver(this); 


     Intent i=new Intent(this, AppService.class); 

     i.putExtra(AppService.TIME, spinner_time.getSelectedItemPosition()); 

     startService(i); 


     // Service 

     public class AppService extends Service { 

      public static final String TIME="TIME"; 

      int time_loud; 

      Notification note; 
      Intent i; 

      private boolean flag_silencemode = false; 


      @Override 
      public int onStartCommand(Intent intent, int flags, int startId) { 


      time_loud = intent.getIntExtra(TIME, 0); 
      resultReceiver = intent.getParcelableExtra(RESULT_RECEIVER); 
      resultData = new Bundle(); 

      resultData.putString("Event", "ysfgsdfgsdfg"); 
      resultReceiver.send(55, resultData); 

      play(time_loud); 

      return(START_NOT_STICKY); 
      } 


    @SuppressLint("ParcelCreator") 
    public class MyResultReceiver extends ResultReceiver { 

     private Receiver mReceiver; 

     public MyResultReceiver(Handler handler) { 
      super(handler); 
     } 

     public void setReceiver(Receiver receiver) { 
      mReceiver = receiver; 
     } 

     public interface Receiver { 
      void onReceiveResult(int resultCode, Bundle resultData); 
     } 

     @Override 
     protected void onReceiveResult(int resultCode, Bundle resultData) { 
      if (mReceiver != null) { 
       mReceiver.onReceiveResult(resultCode, resultData); 
      } 
     } 
    } 

Answer 1

爲簡單起見，使用本地廣播經理，註冊並在活動註銷它的onResume，在onPause生命週期