UGUI源码之EventInterfaces汇总

UGUI中一共17个事件接口，这些接口都继承之IEventSystemHandler

------------------------事件接口-------------------

-------件接口基类-----
    public interface IEventSystemHandler
    {
    
    }

----------所有事件都继承之基础事件接口------------
    按照功能划分
    1 触发点相关的事件
    public interface IPointerEnterHandler : IEventSystemHandler
    {
        void OnPointerEnter(PointerEventData eventData);
    }
    public interface IPointerExitHandler : IEventSystemHandler
    {
        void OnPointerExit(PointerEventData eventData);
    }

    public interface IPointerDownHandler : IEventSystemHandler
    {
        void OnPointerDown(PointerEventData eventData);
    }

    public interface IPointerUpHandler : IEventSystemHandler
    {
        void OnPointerUp(PointerEventData eventData);
    }

    public interface IPointerClickHandler : IEventSystemHandler
    {
        void OnPointerClick(PointerEventData eventData);
    }


    2 拖动相关的事件
    public interface IBeginDragHandler : IEventSystemHandler
    {
        void OnBeginDrag(PointerEventData eventData);
    }

    public interface IInitializePotentialDragHandler : IEventSystemHandler
    {
        void OnInitializePotentialDrag(PointerEventData eventData);
    }

    public interface IDragHandler : IEventSystemHandler
    {
        void OnDrag(PointerEventData eventData);
    }

    public interface IEndDragHandler : IEventSystemHandler
    {
        void OnEndDrag(PointerEventData eventData);
    }

    public interface IDropHandler : IEventSystemHandler
    {
        void OnDrop(PointerEventData eventData);
    }
    
    
    3 滚动相关的事件
    public interface IScrollHandler : IEventSystemHandler
    {
        void OnScroll(PointerEventData eventData);
    }


    4 更新选中事件    
    public interface IUpdateSelectedHandler : IEventSystemHandler
    {
        void OnUpdateSelected(BaseEventData eventData);
    }

    5 选中事件
    public interface ISelectHandler : IEventSystemHandler
    {
        void OnSelect(BaseEventData eventData);
    }
    
    6 释放选择事件
    public interface IDeselectHandler : IEventSystemHandler
    {
        void OnDeselect(BaseEventData eventData);
    }

    7 移动事件
    public interface IMoveHandler : IEventSystemHandler
    {
        void OnMove(AxisEventData eventData);
    }

    8 提交事件
    public interface ISubmitHandler : IEventSystemHandler
    {
        void OnSubmit(BaseEventData eventData);
    }

    9 取消事件
    public interface ICancelHandler : IEventSystemHandler
    {
        void OnCancel(BaseEventData eventData);
    }