[Unity UGUI]点击和长按组件

来源：互联网发布：淘宝微淘广播怎么发布编辑：程序博客网时间：2024/05/22 03:30

需求

游戏项目中卡片经常需要按钮/卡片的点击或者长按事件，这里提供一个好用的组件。

组件

using UnityEngine;using UnityEngine.Events;using UnityEngine.EventSystems;namespace Mga{    public class LongPressOrClickEventTrigger : UIBehaviour, IPointerDownHandler, IPointerUpHandler, IPointerExitHandler, IPointerClickHandler    {        public float durationThreshold = 1.0f;        public UnityEvent onLongPress = new UnityEvent();        public UnityEvent onClick = new UnityEvent();        private bool isPointerDown = false;        private bool longPressTriggered = false;        private float timePressStarted;        private void Update()        {            if (isPointerDown && !longPressTriggered)            {                if (Time.time - timePressStarted > durationThreshold)                {                    longPressTriggered = true;                    onLongPress.Invoke();                }            }        }        public void OnPointerDown(PointerEventData eventData)        {            timePressStarted = Time.time;            isPointerDown = true;            longPressTriggered = false;        }        public void OnPointerUp(PointerEventData eventData)        {            isPointerDown = false;        }        public void OnPointerExit(PointerEventData eventData)        {            isPointerDown = false;        }        public void OnPointerClick(PointerEventData eventData)        {            if (!longPressTriggered)            {                onClick.Invoke();            }        }    }}

用法

var pressSrc = Obj_ClickButton.gameObject.AddComponent<LongPressOrClickEventTrigger>();pressSrc.onLongPress.AddListener(delegate (){    //长按方法});pressSrc.onClick.AddListener(delegate (){    //点击方法});

阅读全文

0 0