protected void handleSetCamera(Command command)
        {
            Logger.d("handleSetCamera");

            try
            {
                List <String> camerName = JsonParser.Deserialization <List <String> >(command);
                if (camerName.Count > 0)
                {
                    String oldCamera = NGUIHelper.setCamera(camerName[0]);
                }
                else
                {
                    command.status  = ResponseStatus.UN_KNOW_ERROR;
                    command.sendObj = "need camera name ";
                }
            }
            catch (System.Exception ex)
            {
                Logger.w(ex.Message + " " + ex.StackTrace);
                Logger.e("***************************" + ex.Message + " " + ex.StackTrace);
                command.status  = ResponseStatus.UN_KNOW_ERROR;
                command.sendObj = ex.Message + " " + ex.StackTrace;
            }
            CommandDispatcher.SendCommand(command);
        }