metaClient/Assets/GameMain/Scripts/UI/ColorPickClick.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using System;
using UnityEngine.UI;
namespace MetaClient
{
    public class ColorPickClick : MonoBehaviour, IPointerDownHandler, IDragHandler
    {
        // Start is called before the first frame update
        void Start()
        {

        }
        public Button.ButtonClickedEvent Click;

        public Vector3 ClickPoint { get; set; }
        public void OnPointerDown(PointerEventData eventData)
        {
            var rect = transform as RectTransform;
            ClickPoint = rect.InverseTransformPoint(eventData.position);
            Click.Invoke();
        }
        public void OnDrag(PointerEventData eventData)
        {
            var rect = transform as RectTransform;
            ClickPoint = rect.InverseTransformPoint(eventData.position);
            Click.Invoke();
        }
        // Update is called once per frame
        void Update()
        {

        }
    }
}