發送消息給android設備，它將消息發送回Android Wear，但收到消息時從不會觸發

Question

我正在爲Android設備編寫一個應用程序，它與設備進行通信並返回到設備。這是佩戴onclick的代碼。

message1Button.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      Wearable.MessageApi.sendMessage(apiClient, remoteNodeId, MESSAGE1_PATH, null).setResultCallback(new ResultCallback<MessageApi.SendMessageResult>() { 
       @Override 
       public void onResult(MessageApi.SendMessageResult sendMessageResult) { 
        Intent intent = new Intent(getApplicationContext(), ConfirmationActivity.class); 
        if (sendMessageResult.getStatus().isSuccess()) { 

         intent.putExtra(ConfirmationActivity.EXTRA_ANIMATION_TYPE, ConfirmationActivity.SUCCESS_ANIMATION); 
         intent.putExtra(ConfirmationActivity.EXTRA_MESSAGE, getString(R.string.message1_sent)); 
        } else { 
         intent.putExtra(ConfirmationActivity.EXTRA_ANIMATION_TYPE, ConfirmationActivity.FAILURE_ANIMATION); 
         intent.putExtra(ConfirmationActivity.EXTRA_MESSAGE, getString(R.string.error_message1)); 
        } 
        startActivity(intent); 
       } 
      }); 

以下是用於在手持式設備上接收到的代碼。

public void onMessageReceived(MessageEvent messageEvent) { 
      if (messageEvent.getPath().equals(MESSAGE1_PATH)) { 
       handler.post(new Runnable() { 
        @Override 
        public void run() { 
         receivedMessagesEditText.append("\n" + getString(R.string.received_message1)); 
         String serverURL = "A Working URL"; 
         try { 
          ArrayList<String> list=new ArrayList<String>(); 
          list.add(0,serverURL); 
          list.add(1,"SELECT DISTINCT ACCOUNTNO FROM CUSTOMR_WISE_WALLET_POINTS ORDER BY ACCOUNTNO"); 
          jsonContent= new LongOperation().execute(list).get(); 
         } catch (InterruptedException e) { 
          Log.e("Error",e.getMessage()); 
          e.printStackTrace(); 
         } catch (ExecutionException e) { 
          e.printStackTrace(); 
         } 

         Log.d("Value of json",jsonContent); 

        } 
       }); 
       Wearable.MessageApi.sendMessage(apiClient, remoteNodeId, MESSAGE4_PATH, jsonContent.getBytes()).setResultCallback(new ResultCallback<MessageApi.SendMessageResult>() { 
        @Override 
        public void onResult(MessageApi.SendMessageResult sendMessageResult) { 
         if (sendMessageResult.getStatus().isSuccess()) 
          Toast.makeText(getApplication(), "Message 4 sent", Toast.LENGTH_SHORT).show(); 
         else 
          Toast.makeText(getApplication(), getString(R.string.error_message1), Toast.LENGTH_SHORT).show(); 
        } 
       }); 
      } else if (messageEvent.getPath().equals(MESSAGE2_PATH)) { 
       handler.post(new Runnable() { 
        @Override 
        public void run() { 
         receivedMessagesEditText.append("\n" + getString(R.string.received_message2)); 
        } 
       }); 
      } 
     } 

的手持設備，示出了多士 「發送消息4」。但關於磨損的消息監聽器從未被觸發。其代碼是。

messageListener = new MessageApi.MessageListener() { 
     @Override 
     public void onMessageReceived(final MessageEvent messageEvent) { 
      Log.d("Inside","On message recieved"); 
      if (messageEvent.getPath().equals(MESSAGE1_PATH)) { 
       handler.post(new Runnable() { 
        @Override 
        public void run() { 
         receivedMessagesEditText.append("\n" + getString(R.string.received_message1)); 
         /*COde to send another request*/ 
         Wearable.MessageApi.sendMessage(apiClient, remoteNodeId, MESSAGE3_PATH, "Hello".getBytes()).setResultCallback(new ResultCallback<MessageApi.SendMessageResult>() { 
          @Override 
          public void onResult(MessageApi.SendMessageResult sendMessageResult) { 
           Intent intent = new Intent(getApplicationContext(), ConfirmationActivity.class); 
           if (sendMessageResult.getStatus().isSuccess()) { 
            intent.putExtra(ConfirmationActivity.EXTRA_ANIMATION_TYPE, ConfirmationActivity.SUCCESS_ANIMATION); 
            intent.putExtra(ConfirmationActivity.EXTRA_MESSAGE, "Message 3 sent"); 
           } else { 
            intent.putExtra(ConfirmationActivity.EXTRA_ANIMATION_TYPE, ConfirmationActivity.FAILURE_ANIMATION); 
            intent.putExtra(ConfirmationActivity.EXTRA_MESSAGE, getString(R.string.error_message2)); 
           } 
           startActivity(intent); 
          } 
         }); 


        } 
       }); 
      } else if (messageEvent.getPath().equals(MESSAGE2_PATH)) { 
       handler.post(new Runnable() { 
        @Override 
        public void run() { 
         receivedMessagesEditText.append("\n" + getString(R.string.received_message2)); 
        } 
       }); 
      } 
      else if(messageEvent.getPath().equals(MESSAGE4_PATH)){ 

       handler.post(new Runnable() { 
        @Override 
        public void run() { 
         receivedMessagesEditText.append("\n" + getString(R.string.received_message1)); 
         /*COde to send another request*/ 

         // String jsonInString=new String(messageEvent.getData()); 
         Log.d("Inside Message 4","Inside"); 
         String[] items = new String[]{"Select User", "2", "three"}; 
         ArrayAdapter<String> adapter = new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_spinner_dropdown_item, items); 
         dropdown.setAdapter(adapter); 
         message2Button.setEnabled(true); 

        } 
       }); 

      } 
     } 
    }; 

總而言之，我可以發送消息，並在handhled上觸發messagerecieved。消息從手持設備成功發送，但在messagelistener範圍內調用時，收到的on消息不會在磨損時觸發。我檢查了應用程序Id，它們是相同的。我還測試了通過使用button2從手持設備觸發的磨損信息。它工作正常。在此先感謝

Answer 1

MessageApi不保證即使返回成功的結果代碼也會收到消息。檢查文檔here。

注意：成功的結果代碼不保證傳遞消息。如果您的應用需要數據可靠性，請使用DataItem對象或ChannelApi類在設備之間發送數據。