如何在可見時更新通知添加新信息？

我的應用程序接收來自GCM的消息。如何在可見時更新通知添加新信息？

我已經正確配置了一個服務和一個broadcastreceiver。然後，當一條消息正在提交時，我會顯示一條通知。我有不同類型的消息通知。這運行良好。

好吧，現在我需要在收到新消息時更新通知，比如Whatsapp。

例如，當Whatsapp從聯繫人收到一條消息時，顯示文本消息「Hello world！」但是當從同一聯繫人收到另一個聯繫人時，更改通知信息，顯示「兩條新消息」。如果收到來自其他聯繫人的消息，通知會顯示「3條2條聊天消息」以及類似的消息。

我需要做兩種類型的消息，但不是全部。然後，我需要知道哪些通知正在顯示actionBar，然後更新而不是其他人。我想創建一個所有通知顯示的bucle，分析它們，並檢查是否有人顯示我的具體類型，以前創建一個新的。

如何從notificationManager或StatusActionBar中獲取信息以更改它？如何檢查Actionbar上顯示的通知是否具有相同類型的通知？

謝謝。

GCMIntentService.java

此服務分析來自GCM消息（notificationType）一個「額外」的值。製作一個開關盒，併爲通知中的節目製作數據。

有一個顯示通知的方法。我已經在showNotification方法上提出了一些意見，以說明我需要什麼。

public class GCMIntentService extends IntentService { 

private String TAG = this.getClass().getSimpleName(); 

private SQLiteDatabase localDB; 

private SharedPreferences localSettings; 

public GCMIntentService() { 
    super(StaticValues.GOOGLE_PROJECT_NUMBER); 
} 

@Override 
protected void onHandleIntent(Intent intent) { 

    Bundle extras = intent.getExtras(); 
    int gcmNotificationType; 
    String gcmMess; 
    long gcmUserIDFrom; 
    long gcmUserIDTo; 
    String gcmUserFromCode; 
    String gcmEventShortDescription; 

    boolean showNotification = false; 

    GoogleCloudMessaging gcm = GoogleCloudMessaging.getInstance(this); 

    String messageType = gcm.getMessageType(intent); 

    if (!extras.isEmpty()) { 

     if (GoogleCloudMessaging.MESSAGE_TYPE_MESSAGE.equals(messageType)) {       

      // Hay notificaciones de varios tipos así que las catalogamos y hacemos cosas diferentes en función del tipo 
      // Hay que recuperar los settings para saber qué notificaciones se tratan y cuáles no. 

      if (extras.getString("notificationType") != null) { 

       gcmNotificationType = Integer.valueOf(extras.getString("notificationType")); 
       gcmMess = extras.getString("message"); 
       gcmEventShortDescription = extras.getString("eventShortDescription"); 
       gcmUserFromCode = getString(R.string.app_name); 

       Log.d(TAG, "NotificationType: " + gcmNotificationType); 

       localSettings = getSharedPreferences(StaticValues.PREFS, 0); 

       switch (gcmNotificationType) { 

        case StaticValues.NOTIFICATION_MESSAGE_SINGLE: 

         Log.d(TAG, "Message received from " + extras.getString("userFromCode")); 

         localDB = PassObjects.getLocalDB(); 

         gcmUserFromCode = extras.getString("userFromCode"); 
         gcmUserIDFrom = Long.valueOf(extras.getString("userIDFrom")); 
         gcmUserIDTo = Long.valueOf(extras.getString("userIDTo")); 

         String inDate; 
         inDate = FormatValidators.convertTimeStampToString(); 

         GenericMessageMethods.addMessages(gcmUserIDFrom, gcmUserIDTo, gcmMess, inDate, getApplicationContext(), localDB, false); 

         // Sólo llamo a la cola de broadcast de la pantalla 
         // si el mensaje es para el perfil en uso 

         if (gcmUserIDTo == PassObjects.getLOG_INFO_LAST_USER_ID()) { 

          Intent chatIntent = new Intent("com.example.JourneyApp.journeyActivities.LocalMessagesActivity"); 
          chatIntent.putExtra("userIDFrom",extras.getString("userIDFrom")); 
          chatIntent.putExtra("userIDTo", extras.getString("userIDTo")); 
          chatIntent.putExtra("message", extras.getString("message")); 
          chatIntent.putExtra("messageDate", inDate); 

          sendBroadcast(chatIntent); 
         } 

         if (localSettings.getBoolean("TMP_NOTIFY_MESSAGES_FLAG",true)) { 

          if (localSettings.getBoolean("NOTIFY_MESSAGES_FLAG",true)) { 

           showNotification = true; 

          } else { 

           Log.d(TAG, "Notifications desactivated: " 
            + "MessagesFlag: " + localSettings.getBoolean("NOTIFY_MESSAGES_FLAG",true)); 
          } 
         } else { 

          Log.d(TAG, "Notifications TEMPORALLY desactivated. " + 
            " Processing messages with LocalMessagesActivity running"); 
         } 

         break; 

        case StaticValues.NOTIFICATION_MESSAGE_ON_EVENT_ALL_ON_LINE: 

         Log.d(TAG, "Message received on event " + gcmEventShortDescription + " from " + extras.getString("userFromCode")); 

         gcmUserFromCode = extras.getString("userFromCode") + " " + getString(R.string.GCM_ON_EVENT) + " " + gcmEventShortDescription; 

         Intent foroIntent = new Intent("com.example.JourneyApp.journeyActivities.ForoMessagesActivity"); 

         foroIntent.putExtra("userIDFrom",extras.getString("userIDFrom")); 
         foroIntent.putExtra("eventID", extras.getString("eventID")); 
         foroIntent.putExtra("message", extras.getString("message")); 
         foroIntent.putExtra("userFromCode", extras.getString("userFromCode")); 

         sendBroadcast(foroIntent); 

         if (localSettings.getBoolean("TMP_NOTIFY_EVENT_MESSAGES_FLAG",true)) { 

          if (localSettings.getBoolean("NOTIFY_EVENT_MESSAGES_FLAG",true)) { 

           showNotification = true; 

          } else { 

           Log.d(TAG, "Notifications desactivated: " 
             + "EventMessagesFlag: " + localSettings.getBoolean("NOTIFY_EVENT_MESSAGES_FLAG",true)); 
          } 

         } else { 

          Log.d(TAG, "Notifications TEMPORALLY desactivated: " + 
            " Processing messages with ForoMessagesActivity running"); 

         } 
         break; 

        case StaticValues.NOTIFICATION_NEW_EVENT: 

         Log.d(TAG, getString(R.string.GCM_new_event_created) + " " + gcmEventShortDescription); 

         if (localSettings.getInt("NOTIFY_NEW_EVENTS_TYPE_ID",StaticValues.NOTIFICATION_ALWAYS) != StaticValues.NOTIFICATION_NEVER) { 

          if (localSettings.getInt("NOTIFY_NEW_EVENTS_TYPE_ID",StaticValues.NOTIFICATION_ALWAYS) == StaticValues.NOTIFICATION_ONLY_MY_INTEREST) { 

           if (PassObjects.getLOG_INFO_LAST_USER_ID() > 0) { 

            ArrayList<Integer> arrayLikesProfileLogged = PassObjects.getLOG_INFO_USER_LIKES(); 
            ArrayList<Integer> arrayLikesOnEvent = new ArrayList<Integer>(); 

            // Los extras están en String. Lo paso a un String[], lo recorro, parseo a int 
            // y añado al array. Recorro el del evento y en cuanto encuentro uno coincidente, 
            // salgo y muestro notificación 

            String extrasEventLikesString = extras.getString("eventLikes"); 

            Log.d(TAG, "EventLikes: (string) " + extrasEventLikesString); 

            String[] auxS = extrasEventLikesString.replace(" ", "").split(","); 

            for (int i = 0; i < auxS.length; i++) { 

             arrayLikesOnEvent.add(Integer.parseInt(auxS[i])); 

            } 

            Log.d(TAG, "EventLikes: (ArrayList<Integer>) " + arrayLikesOnEvent.toString()); 

            for (int x:arrayLikesOnEvent) { 

             if (arrayLikesProfileLogged.contains(x)) { 

              gcmMess = getString(R.string.mess_new_event_created); 
              showNotification = true; 
              break; 
             } 
            } 

           } else { 

            Log.d(TAG, "Notification is: " + localSettings.getInt("NOTIFY_NEW_EVENTS_TYPE_ID",StaticValues.NOTIFICATION_ALWAYS) + " but user not logged"); 

           } 

          } else { 

           gcmMess = getString(R.string.mess_new_event_created); 
           showNotification = true; 

          } 

         } else { 

          Log.d(TAG, "Notifications desactivated: " 
            + "Notify new events type: " + localSettings.getInt("NOTIFY_NEW_EVENTS_TYPE_ID", StaticValues.NOTIFICATION_ALWAYS)); 

         } 
         break; 

        case StaticValues.NOTIFICATION_NEW_USER: 

         Log.d(TAG, "New user created: " + extras.getString("userFromCode")); 

         if (localSettings.getInt("NOTIFY_NEW_USERS_TYPE_ID", StaticValues.NOTIFICATION_ALWAYS) != StaticValues.NOTIFICATION_NEVER) { 

          if (localSettings.getInt("NOTIFY_NEW_USERS_TYPE_ID", StaticValues.NOTIFICATION_ALWAYS) == StaticValues.NOTIFICATION_ONLY_MY_INTEREST) { 

           if (PassObjects.getLOG_INFO_LAST_USER_ID() > 0) { 

            ArrayList<Integer> arrayLikesProfileLogged = PassObjects.getLOG_INFO_USER_LIKES(); 
            ArrayList<Integer> arrayLikesOnUser = new ArrayList<Integer>(); 

            // Los extras están en String. Lo paso a un String[], lo recorro, parseo a int 
            // y añado al array. Recorro el del evento y en cuanto encuentro uno coincidente, 
            // salgo y muestro notificación 

            String extrasUserLikesString = extras.getString("userLikes"); 

            Log.d(TAG, "UserLikes: (string) " + extrasUserLikesString); 

            String[] auxS = extrasUserLikesString.replace(" ", "").split(","); 

            for (int i = 0; i < auxS.length; i++) { 

             arrayLikesOnUser.add(Integer.parseInt(auxS[i])); 

            } 

            Log.d(TAG, "UserLikes: (ArrayList<Integer>): " + arrayLikesOnUser.toString()); 

            for (int x:arrayLikesOnUser) { 

             if (arrayLikesProfileLogged.contains(x)) { 

              gcmMess = getString(R.string.mess_profile_created_part1); 
              showNotification = true; 
              break; 
             } 
            } 

           } else { 

            Log.d(TAG, "Notification is: " + localSettings.getInt("NOTIFY_NEW_USERS_TYPE_ID", StaticValues.NOTIFICATION_ALWAYS) + " but user not logged"); 

           } 

          } else { 

           gcmMess = getString(R.string.mess_profile_created_part1); 
           showNotification = true; 

          } 

         } else { 

          Log.d(TAG, "Notifications desactivated: " 
            + "Notify new uers type: " + localSettings.getInt("NOTIFY_NEW_USERS_TYPE_ID", StaticValues.NOTIFICATION_ALWAYS)); 

         } 
         break; 

        case StaticValues.NOTIFICATION_CHANGE_EVENT: 

         Log.d(TAG, "Changes on event: " + gcmEventShortDescription); 

         gcmMess = getString(R.string.GCM_changes_on_event) + " " + gcmEventShortDescription; 
         showNotification = true; 

         break; 

        case StaticValues.NOTIFICATION_LINK_EVENT: 

         Log.d(TAG, "Linked user from event: " + gcmEventShortDescription); 

         if (localSettings.getBoolean("NOTIFY_EVENT_LINK_FLAG", true)) { 

          gcmMess = getString(R.string.mess_linked) + " " + getString(R.string.GCM_ON_EVENT) + " " + gcmEventShortDescription; 
          showNotification = true; 

         } else { 

          Log.d(TAG, "Notifications desactivated: " 
            + "Notify link event: " + localSettings.getBoolean("NOTIFY_EVENT_LINK_FLAG", true)); 

         } 
         break; 

        case StaticValues.NOTIFICATION_UNLINK_EVENT: 

         Log.d(TAG, "Unlinked user from event: " + gcmEventShortDescription); 

         if (localSettings.getBoolean("NOTIFY_EVENT_UNLINK_FLAG", true)) { 

          gcmMess = getString(R.string.mess_unlinked) + " " + getString(R.string.GCM_ON_EVENT) + " " + gcmEventShortDescription; 
          showNotification = true; 

         } else { 

          Log.d(TAG, "Notifications desactivated: " 
            + "Notify unlink event: " + localSettings.getBoolean("NOTIFY_EVENT_UNLINK_FLAG", true)); 

         } 
         break; 

        case StaticValues.NOTIFICATION_EVENT_CAPACITY_FULL: 

         Log.d(TAG, "Capacity full on event: " + gcmEventShortDescription); 

         if (localSettings.getBoolean("NOTIFY_EVENT_CAPACITY_FULL_FLAG", true)) { 

          gcmMess = getString(R.string.GCM_event_capacity_completed) + " " + gcmEventShortDescription; 
          showNotification = true; 

         } else { 

          Log.d(TAG, "Notifications desactivated: " 
            + "Notify event capacity full: " + localSettings.getBoolean("NOTIFY_EVENT_CAPACITY_FULL_FLAG", true)); 
         } 

         break; 

        case StaticValues.NOTIFICATION_EVENT_WILL_BEGIN_AT: 

         Log.d(TAG, "Begin notification on event: " + gcmEventShortDescription); 

         gcmMess = getString(R.string.GCM_event_will_begin_part_1) + " " + gcmEventShortDescription + " " + getString(R.string.GCM_event_will_begin_part_2); 
         showNotification = true; 

         break; 

        case StaticValues.NOTIFICATION_EVENT_CANCELLED: 

         Log.d(TAG, "Cancel event: " + gcmEventShortDescription); 

         gcmMess = getString(R.string.GCM_event_canceled) + " " + gcmEventShortDescription; 
         showNotification = true; 

         break; 

        default: 

         Log.d(TAG, "Notification not in case"); 

         break; 


       }  //END Switch 

       if (showNotification) { 

        showNotification(gcmNotificationType, gcmMess, gcmUserFromCode); 
       } 

      } else { 

       Log.d(TAG, "Cannot find <notificationType> label on extras"); 
       Log.d(TAG, "Extras.size(): " + extras.size() + ", extrasToString " + extras.toString()); 

      } 

     } else { 

      Log.d(TAG, "Other GCM message type received"); 
     } 

    } else { 

     Log.d(TAG, "Extras are empty"); 
    }  

    GCMBroadcastReceiver.completeWakefulIntent(intent); 
} 

private void showNotification(int nType, String mMessage, String mTitle) { 

    NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE); 

      // I would like to analyze ActionBar data or NotificationManager data 
      // Something like... 

      // for (x:CurrentVisibleNotifications) {   // Which will be this object? 

      //  int currentId = x.getId(); 
      //  int currentNumber = x.getNumber();  // This is a property of notification 

      //  if (currentId == nType) { 

      //   mMessage = currentNumber++ + " new messages"; 

      //  } 

      // } 


    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(this)     

     .setSmallIcon(R.drawable.journey_icon_orange)     
     .setContentTitle(mTitle)     
     .setContentText(mMessage) 
     .setTicker(getString(R.string.app_name)) 
     .setAutoCancel(true) 
     ; 

    // Intent notIntent = new Intent(this, MainActivity.class);  
    // PendingIntent contIntent = PendingIntent.getActivity(this, 0, notIntent, 0);   
    // mBuilder.setContentIntent(contIntent);   
    mNotificationManager.notify(nType, mBuilder.build()); 
}

來源

2014-10-08 Carlos

對於更新視圖時您的應用程序收到PushNotification你需要LocalBroadCastManager

http://developer.android.com/reference/android/support/v4/content/LocalBroadcastManager.html

在服務「GCMIntentService」，在方法的onMessage你需要添加nextCode：

Intent intent = new Intent("Reload"); 
     // You can also include some extra data. 
     intent.putExtra("message", "Reload"); 
     LocalBroadcastManager.getInstance(getApplicationContext()) 
       .sendBroadcast(intent);

用這種方法註冊一個新的廣播消息。

在您需要添加下一個類的更新

現在：在onCreate方法：

LocalBroadcastManager.getInstance(getApplicationContext()) 
      .registerReceiver(mMessageReceiver, 
        new IntentFilter("Reload"));

，你需要添加下一個方法之前：

private BroadcastReceiver mMessageReceiver = new BroadcastReceiver() { 
    @Override 
    public void onReceive(Context context, Intent intent) { 
     // Get extra data included in the Intent 
     String message = intent.getStringExtra("message"); 
     if (message.equalsIgnoreCase("Reload")) { 
      //Actions...for reload a listView, TextView, etc... 

     } 
    } 
};

的重要添加的onDestroy方法：

@Override 
public void onDestroy() { 
    // Unregister since the activity is about to be closed. 
    LocalBroadcastManager.getInstance(getApplicationContext()) 
      .unregisterReceiver(mMessageReceiver); 
    super.onDestroy(); 
}

.... PD：Sorry for my English ...

來源

2014-10-08 18:28:30 indiefr

這不能解決我的問題。 – Carlos 2014-10-09 09:17:59

一年後：D沒有關於它的消息嗎？我有同樣的「問題」.. – deveLost 2015-09-24 11:20:49

如何在可見時更新通知添加新信息？

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