GHZMRSupport/Assets/Remote/ShowRoom/MySlider.cs

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

public class MySlider : Slider, IBeginDragHandler, IEndDragHandler
{
    public Action beiginDrag { get; set; }
    public Action endDrag { get; set; }

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

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