void OnTexDrag(GameObject go, Vector2 delta, Vector2 pointer_pos)
        {
            if (null == m_cur_normal_item_view)
            {
                return;
            }

            Vector2 localPos;

            if (RectTransformUtility.ScreenPointToLocalPointInRectangle(CurViewLogic().Transform, pointer_pos, FrameMgr.Instance.UICamera, out localPos))
            {
                m_cur_normal_item_view.SetPos(localPos);
            }
        }