public void RemoveDrag(EasyTouch.DragHandler handler) { if (handler != null && this.m_DragList.Contains(handler)) { this.m_DragList.Remove(handler); } }
public void RegisterDrag(EasyTouch.DragHandler handler) { if (handler != null && !this.m_DragList.Contains(handler)) { this.m_DragList.Add(handler); } }