重写Slider监听开始拖动跟拖动结束功能_el-slider 开始拖动监听

using UnityEngine.UI;
using UnityEngine.EventSystems;
using System;

public class MySlider : Slider, IBeginDragHandler, IEndDragHandler
{
    public Action beiginDrag = null;
    public Action endDrag = null;

    public void OnBeginDrag(PointerEventData eventData)
    {
        beiginDrag?.Invoke();
    }

    public void OnEndDrag(PointerEventData eventData)
    {
        endDrag?.Invoke();
    }

}
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下面是调用方法

    public MySlider slider;
 void Awake()
    {
     	 slider.beiginDrag = BeiginDrag;
         slider.endDrag = EndDrag;
	}
	 private void EndDrag()
    {
       
    }

    private void BeiginDrag()
    {
       
    }
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