XiuXianGame/Assets/Scripts/Core/UI/Core/MyUIButton.cs

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

public class MyUIButton : MonoBehaviour, IPointerDownHandler, IPointerUpHandler
{
    public System.Action onClick;
    
    public System.Action OnPressAndHold;
    public bool isUsePressAndHold;
    public float holdTime;
    private bool isPointerDown = false; // 是否按下
    private float pointerDownTimer = 0f; // 按下计时器
    public void OnPointerDown(PointerEventData eventData)
    {
        isPointerDown = true;
        pointerDownTimer = 0;
    }

    public void OnPointerUp(PointerEventData eventData)
    {
        if (isUsePressAndHold)
        {
            if (pointerDownTimer < holdTime)
            {
                onClick?.Invoke();
            }
        }
        else
        {
            onClick?.Invoke();
        }

        isPointerDown = false;
    }

    private void FixedUpdate()
    {
        if (!isUsePressAndHold)
        {
            return;
        }

        if (isPointerDown)
        {
            pointerDownTimer += Time.deltaTime; // 计时
            if (pointerDownTimer >= holdTime) // 达到长按时间
            {
                OnPressAndHold?.Invoke(); // 触发长按事件
                isPointerDown = false; // 重置状态，避免重复触发
            }
        }
    }
}