GCM intent.getExtras - 如何只顯示特定的數據？

使用支持GCM的應用程序，我可以接收消息。但是格式顯示爲消息：Bundle [{message = test，android.support.content.wakelock = 3，collapse_key = do_not_collapes，from = 3423423}]GCM intent.getExtras - 如何只顯示特定的數據？

如何指定只顯示消息數據密鑰對？意圖

protected void onHandleIntent(Intent intent) { 
     Bundle extras = intent.getExtras(); 
     GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this); 
     // The getMessageType() intent parameter must be the intent you received 
     // in your BroadcastReceiver. 
     String messageType = gcm.getMessageType(intent); 

     if (!extras.isEmpty()) { // has effect of unparcelling Bundle 
      /* 
      * Filter messages based on message type. Since it is likely that GCM will be 
      * extended in the future with new message types, just ignore any message types you're 
      * not interested in, or that you don't recognize. 
      */ 
      if (GoogleCloudMessaging.MESSAGE_TYPE_SEND_ERROR.equals(messageType)) { 
       sendNotification("Send error: " + extras.toString()); 
      } else if (GoogleCloudMessaging.MESSAGE_TYPE_DELETED.equals(messageType)) { 
       sendNotification("Deleted messages on server: " + extras.toString()); 
      // If it's a regular GCM message, do some work. 
      } else if (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE.equals(messageType)) { 
       // This loop represents the service doing some work. 
       for (int i = 0; i < 5; i++) { 
        Log.i(TAG, "Working... " + (i + 1) 
          + "/5 @ " + SystemClock.elapsedRealtime()); 
        try { 
         Thread.sleep(5000); 
        } catch (InterruptedException e) { 
        } 
       } 
       Log.i(TAG, "Completed work @ " + SystemClock.elapsedRealtime()); 
       // Post notification of received message. 
       sendNotification("Message: " + extras.toString()); 
       Log.i(TAG, "Message: " + extras.toString()); 
      } 
     } 
     // Release the wake lock provided by the WakefulBroadcastReceiver. 
     GcmBroadcastReceiver.completeWakefulIntent(intent); 
    }

來源

2013-09-26 Gary

extras

GCM接收的消息是Bundle。 Bundle is a Java class，方法like getString()用於通過密鑰訪問各個數據段，很像HashMap。如果您只想要message，請致電getString("message")，電話extras。

來源

2013-09-26 12:20:40 CommonsWare

這是它，謝謝所需的關鍵。 – Gary

它是一個json字符串，你可以解析並獲得唯一的「消息」鍵。

來源

2013-09-26 12:48:14 Swetank

服務器發送JSON字符串時，該JSON字符串中的名稱/值對將轉換爲GCM客戶端代碼所看到的「Bundle」中的條目。 – CommonsWare

是內部GCMIntentService類可以解析內部方法所需的鍵 @覆蓋 \t保護無效的onMessage（上下文範圍內，意圖意圖）{ \t \t Log.i（TAG，「接收消息」）; \t \t String message = intent.getExtras（）。getString（「BUY」）; \t \t \t \t displayMessage（context，message）; \t \t //通知用戶 \t \t generateNotification（context，message）; \t} – Swetank

是內部GCMIntentService類，你可以分析內部方法

@Override 
    protected void onMessage(Context context, Intent intent) { 
     Log.i(TAG, "Received message"); 
     String message = intent.getExtras().getString("BUY"); 

     displayMessage(context, message); 
     // notifies user 
     generateNotification(context, message); 
    }

來源

2013-09-27 06:00:14 Swetank

GCM intent.getExtras - 如何只顯示特定的數據？

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