Unity

mac2022-06-30 16

IPointerEnterHandler指针进入public void OnPointerEnter(PointerEventData eventData);

IPointerExitHandler指针退出public void OnPointerExit(PointerEventData eventData);

IPointerDownHandler指针按下public void OnPointerDown(PointerEventData eventData);

IPointerUpHandler指针释放(可能按下时的指针位置跟释放时的指针位置不同，这里指的是按下时指针指着的物体)public void OnPointerUp(PointerEventData eventData);

IPointerClickHandler在同一物体上按下并释放public void OnPointerClick(PointerEventData eventData);

IInitializePotentialDragHandler拖拽时的初始化，跟IPointerDownHandler差不多，在按下时调用 public void OnInitializePotentialDrag(PointerEventData eventData);

IBeginDragHandler开始拖拽public void OnBeginDrag(PointerEventData eventData);

IDragHandler拖拽中public void OnDrag(PointerEventData eventData);

IEndDragHandler拖拽结束(被拖拽的物体调用)public void OnEndDrag(PointerEventData eventData);

IDropHandler拖拽结束(拖拽结束后的位置(即鼠标位置)如果有物体，则那个物体调用)public void OnDrop(PointerEventData eventData);

IScrollHandler滚轮滚动public void OnScroll(PointerEventData eventData);

IUpdateSelectedHandler被选中的物体每帧调用public void OnUpdateSelected(BaseEventData eventData);

ISelectHandler物体被选中时(EventSystem.current.SetSelectedGameObject(gameObject))public void OnSelect(BaseEventData eventData);

IDeselectHandler物体从选中到取消选中时public void OnDeselect(BaseEventData eventData);

IMoveHandler物体移动时(与InputManager里的Horizontal和Vertica按键相对应)，前提条件是物体被选中public void OnMove(AxisEventData eventData);

ISubmitHandler提交按钮被按下时(与InputManager里的Submit按键相对应，PC上默认的是Enter键)，前提条件是物体被选中public void OnSubmit(BaseEventData eventData);

ICancelHandler取消按钮被按下时(与InputManager里的Cancel按键相对应，PC上默认的是Esc键)，前提条件是物体被选中public void OnCancel(BaseEventData eventData);

//总结：1.共有17个接口方法2.其中OnMove使用的参数是AxisEventData eventData3.其中OnUpdateSelected、OnSelect 、OnDeselect 、OnSubmit 、OnCancel 使用的参数是BaseEventData eventData4.其余使用的参数是PointerEventData eventData//实现事件的两种方式：1.编辑器：添加Event Trigger组件2.代码：继承EventTrigger，实现方法(EventTrigger继承了上面所说的接口)

using UnityEngine;using System.Collections;using UnityEngine.EventSystems;public class TestUI3 : MonoBehaviour{ private GameObject button; private GameObject image; void Start () { button = GameObject.Find("Button"); image = GameObject.Find("Image"); EventTriggerListener.GetListener(button).onPointerClick += Click; EventTriggerListener.GetListener(image).onDrag += Drag; } public void Click(GameObject go) { Debug.Log(go.name); } public void Drag(GameObject go) { Debug.Log(go.name); }}

using UnityEngine;using System.Collections;using UnityEngine.EventSystems;public class EventTriggerListener : EventTrigger{ #region 变量 //带参数是为了方便取得绑定了UI事件的对象 public delegate void PointerEventDelegate(GameObject go, PointerEventData eventData); public delegate void BaseEventDelegate(GameObject go, BaseEventData eventData); public delegate void AxisEventDelegate(GameObject go, AxisEventData eventData); public event PointerEventDelegate onPointerEnter; public event PointerEventDelegate onPointerExit; public event PointerEventDelegate onPointerDown; public event PointerEventDelegate onPointerUp; public event PointerEventDelegate onPointerClick; public event PointerEventDelegate onInitializePotentialDrag; public event PointerEventDelegate onBeginDrag; public event PointerEventDelegate onDrag; public event PointerEventDelegate onEndDrag; public event PointerEventDelegate onDrop; public event PointerEventDelegate onScroll; public event BaseEventDelegate onUpdateSelected; public event BaseEventDelegate onSelect; public event BaseEventDelegate onDeselect; public event AxisEventDelegate onMove; public event BaseEventDelegate onSubmit; public event BaseEventDelegate onCancel; #endregion public static EventTriggerListener GetListener(GameObject go) { EventTriggerListener listener = go.GetComponent<EventTriggerListener>(); if (listener == null) listener = go.AddComponent<EventTriggerListener>(); return listener; } #region 方法 public override void OnPointerEnter(PointerEventData eventData) { if (onPointerEnter != null) onPointerEnter(gameObject, eventData); } public override void OnPointerExit(PointerEventData eventData) { if (onPointerExit != null) onPointerExit(gameObject, eventData); } public override void OnPointerDown(PointerEventData eventData) { if (onPointerDown != null) onPointerDown(gameObject, eventData); } public override void OnPointerUp(PointerEventData eventData) { if (onPointerUp != null) onPointerUp(gameObject, eventData); } public override void OnPointerClick(PointerEventData eventData) { if (onPointerClick != null) onPointerClick(gameObject, eventData); } public override void OnInitializePotentialDrag(PointerEventData eventData) { if (onInitializePotentialDrag != null) onInitializePotentialDrag(gameObject, eventData); } public override void OnBeginDrag(PointerEventData eventData) { if (onBeginDrag != null) onBeginDrag(gameObject, eventData); } public override void OnDrag(PointerEventData eventData) { if (onDrag != null) onDrag(gameObject, eventData); } public override void OnEndDrag(PointerEventData eventData) { if (onEndDrag != null) onEndDrag(gameObject, eventData); } public override void OnDrop(PointerEventData eventData) { if (onDrop != null) onDrop(gameObject, eventData); } public override void OnScroll(PointerEventData eventData) { if (onScroll != null) onScroll(gameObject, eventData); } public override void OnUpdateSelected(BaseEventData eventData) { if (onUpdateSelected != null) onUpdateSelected(gameObject, eventData); } public override void OnSelect(BaseEventData eventData) { if (onSelect != null) onSelect(gameObject, eventData); } public override void OnDeselect(BaseEventData eventData) { if (onDeselect != null) onDeselect(gameObject, eventData); } public override void OnMove(AxisEventData eventData) { if (onMove != null) onMove(gameObject, eventData); } public override void OnSubmit(BaseEventData eventData) { if (onSubmit != null) onSubmit(gameObject, eventData); } public override void OnCancel(BaseEventData eventData) { if (onCancel != null) onCancel(gameObject, eventData); } #endregion}

转载于:https://www.cnblogs.com/Damon-3707/p/11426317.html

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