public static void removeMessageListener(GCMMessageReceived listener) { MessageCallbackEvent -= listener; }
public static void removeMessageListener (GCMMessageReceived listener) { MessageCallbackEvent -= listener; }
public static void addMessageListener(GCMMessageReceived listener) { MessageCallbackEvent += listener; }
public static void addMessageListener (GCMMessageReceived listener) { MessageCallbackEvent += listener; }