public void JoinGroup()
        {
            string code = JoingGroupInputField.GetComponent <Text>().text;

            if (code.Trim() == "")
            {
                uiManagerScript.HideJoinGroupForm();
                return;
            }
            uiManagerScript.LoadingJoin();
            StartCoroutine(JoinGroupRequest(code, FriendListContent, GroupButtonPrefab, GroupCallback));
        }