EventTriggerListener对UI事件的封装

EventTriggerListener.cs 是Unity3D编写通用的事件监听 

【实例截图】

【核心代码】

using UnityEngine;
using UnityEngine.EventSystems;
public class EventTriggerListener : UnityEngine.EventSystems.EventTrigger
{
    public delegate void VoidDelegate(GameObject go);
    public delegate void BoolDelegate(GameObject go, bool state);
    public delegate void FloatDelegate(GameObject go, float delta);
    public delegate void VectorDelegate(GameObject go, Vector2 delta);
    public delegate void ObjectDelegate(GameObject go, GameObject obj);
    public delegate void KeyCodeDelegate(GameObject go, KeyCode key);
    public delegate void PointerEventDataDelegate(PointerEventData eventdata);

    public object parameter;
    public object[] args;

    public VoidDelegate onBeginDrag;
    public VoidDelegate onCancel;
    public VoidDelegate onDeselect;
    public VectorDelegate onDrag;
    public VoidDelegate onDrop;
    public VoidDelegate onEndDrag;
    public VoidDelegate onInitializePotentialDrag;
    public VoidDelegate onMove;
    public VoidDelegate onClick;
    public VoidDelegate onDown;
    public VoidDelegate onEnter;
    public VoidDelegate onExit;
    public VoidDelegate onUp;
    public VoidDelegate onSelect;
    public VoidDelegate onUpdateSelect;
    public PointerEventDataDelegate onDownEventData;
    public PointerEventDataDelegate onDragEventData;
    public PointerEventDataDelegate onClickEventData;

    public PointerEventDataDelegate PointerEventDataCall;

    static public EventTriggerListener Get(GameObject go)
    {
        EventTriggerListener listener = go.GetComponent<EventTriggerListener>();
        if (listener == null) listener = go.AddComponent<EventTriggerListener>();
        return listener;
    }
    public override void OnBeginDrag(PointerEventData eventData)
    {
        if (onBeginDrag != null) onBeginDrag(gameObject);
    }
    public override void OnCancel(BaseEventData eventData)
    {
        if (onCancel != null) onCancel(gameObject);
    }
    public override void OnDeselect(BaseEventData eventData)
    {
        if (onDeselect != null) onDeselect(gameObject);
    }
    public override void OnDrag(PointerEventData eventData)
    {
        if (onDrag != null) onDrag(gameObject, eventData.delta);
        onDragEventData?.Invoke(eventData);
    }
    public override void OnDrop(PointerEventData eventData)
    {
        if (onDrop != null) onDrop(gameObject);
    }
    public override void OnEndDrag(PointerEventData eventData)
    {
        if (onEndDrag != null) onEndDrag(gameObject);
    }
    public override void OnInitializePotentialDrag(PointerEventData eventData)
    {
        if (onInitializePotentialDrag != null) onInitializePotentialDrag(gameObject);
    }
    public override void OnMove(AxisEventData eventData)
    {
        if (onMove != null) onMove(gameObject);
    }

    public override void OnPointerClick(PointerEventData eventData)
    {
        if (onClick != null) onClick(gameObject);
        onClickEventData?.Invoke(eventData);
    }
    public override void OnPointerDown(PointerEventData eventData)
    {
        if (onDown != null) onDown(gameObject);
        onDownEventData?.Invoke(eventData);
    }
    public override void OnPointerEnter(PointerEventData eventData)
    {
        if (onEnter != null) onEnter(gameObject);
    }
    public override void OnPointerExit(PointerEventData eventData)
    {
        if (onExit != null) onExit(gameObject);
    }
    public override void OnPointerUp(PointerEventData eventData)
    {
        if (onUp != null) onUp(gameObject);
    }
    public override void OnSelect(BaseEventData eventData)
    {
        if (onSelect != null) onSelect(gameObject);
    }
    public override void OnUpdateSelected(BaseEventData eventData)
    {
        if (onUpdateSelect != null) onUpdateSelect(gameObject);
    }
}