UGUI点击事件的简单封装

冷不防 2022-07-14 08:20 183阅读 0赞

# UGUI点击事件的简单封装 #

IPointerEnterHandler – OnPointerEnter – Called when a pointer enters the object  
IPointerExitHandler – OnPointerExit – Called when a pointer exits the object  
IPointerDownHandler – OnPointerDown – Called when a pointer is pressed on the object  
IPointerUpHandler – OnPointerUp – Called when a pointer is released (called on the original the pressed object)  
IPointerClickHandler – OnPointerClick – Called when a pointer is pressed and released on the same object  
IBeginDragHandler – OnBeginDrag – Called on the drag object when dragging is about to begin  
IDragHandler – OnDrag – Called on the drag object when a drag is happening  
IEndDragHandler – OnEndDrag – Called on the drag object when a drag finishes  
IDropHandler – OnDrop – Called on the object where a drag finishes  
IScrollHandler – OnScroll – Called when a mouse wheel scrolls  
IUpdateSelectedHandler – OnUpdateSelected – Called on the selected object each tick  
ISelectHandler – OnSelect – Called when the object becomes the selected object  
IDeselectHandler – OnDeselect – Called on the selected object becomes deselected  
IMoveHandler – OnMove – Called when a move event occurs (left, right, up, down, ect)  
ISubmitHandler – OnSubmit – Called when the submit button is pressed  
ICancelHandler – OnCancel – Called when the cancel button is pressed

上面有各种 UGUI事件的接口,今天我们简单实现一下点击事件的封装,具体步骤如下  
第一步:实现点击接口如下

using UnityEngine;
    using System.Collections;
    using UnityEngine.EventSystems;
    public class ClickEvent :MonoBehaviour,IPointerClickHandler{
        //////这里集成UI各种事件的接口,这里只实现了鼠标点击事件
        public delegate void ClickDelegate(GameObject obj);  
        public ClickDelegate onClick;  
        public static ClickEvent Get(GameObject obj)  
        {  
            ClickEvent listener = obj.GetComponent<ClickEvent>();  
            if (listener == null)  
                listener = obj.AddComponent<ClickEvent>();  
            return listener;  
        }  
           public  void OnPointerClick(PointerEventData eventData)  
        {  
            if (onClick != null) onClick(gameObject);  
        }  
    
    
    }

第二步:给需要点击 ui 添加 tag,这里我给4个 image 添加了自定义 tag:image.  
![这里写图片描述][20161203171143413]  
然后 image 注册事件,如下

using UnityEngine;
    using System.Collections;
    
    public class NeedMountScript : MonoBehaviour {
    
        // Use this for initialization
        void Start () {
            GameObject[] objs = GameObject.FindGameObjectsWithTag("image");
    
            for (int i = 0; i < objs.Length; i++)
            {
                ClickEvent.Get(objs[i]).onClick = OnClick;
    
            }
    
        }
        public void OnClick(GameObject other){
    
            Debug.Log(other.name);
        }
    }

第三步:好啦,将 NeedMountScript放到任意一个面板上的物体上面就可以了(不要忘记这一步额).

效果图:  
![这里写图片描述][20161203171400682]

总结:  
总的来说是比较简单有效的封装方法,这里之封装了点击事件,若是封装其他事情,所做的事就是在刚刚的ClickEvent实现各种事件的接口,再去NeedMountScript上面给委托添加一个方法就好啦!(好吧,我承认这命名有点坑,哈哈哈哈哈哈.)

ps:为了游戏的梦,大家一起努力吧!1!1!1!!1111111!1!!!!!1刚把得

[20161203171143413]: /images/20220714/6a0b485dcf024421a559917bf3902d6b.png
[20161203171400682]: /images/20220714/b191a304682145a3911f415591c616c0.png