ChivaFrameWork/Framework/Scripts/Tool/DragScrollRect.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

public class DragScrollRect : MonoBehaviour,IBeginDragHandler, IEndDragHandler, IDragHandler,IScrollHandler
{
    [Header("要拖动的ScrollRect")]
    public ScrollRect DragScorll;

    public void Start() 
    {
        DragScorll = transform.parent.parent.GetComponentInParent<ScrollRect>();
    }

    public void OnBeginDrag(PointerEventData eventData)
    {
        if (DragScorll != null)
        {
            DragScorll.OnBeginDrag(eventData);
        }
    }

    public void OnDrag(PointerEventData eventData)
    {
        if (DragScorll != null)
        {
            DragScorll.OnDrag(eventData);
        }
    }

    public void OnEndDrag(PointerEventData eventData)
    {
        if (DragScorll != null)
        {
            DragScorll.OnEndDrag(eventData);
        }
    }

    public void OnScroll(PointerEventData eventData)
    {
        if (DragScorll != null)
        {
            DragScorll.OnScroll(eventData);
        }
    }
}