Unity 单指与双指Touch事件捕获_unity pc端 eventsystem捕捉双指-优快云博客

本文链接：https://blog.youkuaiyun.com/reipeng/article/details/50960178

这篇博客介绍了Unity中如何管理和捕获单指与双指的Touch事件，重点在于UGUI事件系统的应用。提供了在游戏制作中响应触摸事件的代码示例，包括开始、结束和移动事件的处理，以及如何关闭事件响应的方法。

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最近整理了一下项目用到的touch事件捕获管理逻辑，贴出来，算是记一下。

using UnityEngine;
using System.Collections;
using UnityEngine.EventSystems;

public delegate void TouchEventHandler(TouchEventArgs args);
public class TouchManager : MonoBehaviour 
{
    public static TouchManager instance;
    private static bool isInited = false;

    public static bool IsInited()
    {
        return (null != instance && isInited);
    }

    public static TouchManager GetInstance()
    {
        return instance;
    }    

    public event TouchEventHandler onFirstTouchBegan;
    public event TouchEventHandler onFirstTouchMoved;
    public event TouchEventHandler onFirstTouchEnded;
    public event TouchEventHandler onTwoTouchMoved;

    private Vector2 touchStartPos;
    private bool getTwoTouch;
    private float disBtwTouch;
    private bool isMouseDown;

    public void Start()
    {
        onFirstTouchBegan = new TouchEventHandler(InitFirstBeganHandler);
        onFirstTouchMoved = new TouchEventHandler(InitFirstMovedHandler);
        onFirstTouchEnded = new TouchEventHandler(InitFirstEndedHandler);
        onTwoTouchMoved = new TouchEventHandler(InitTwoMovedHandler);

        touchStartPos = Vector2.zero;
        getTwoTouch = false;
        isMouseDown = false;
        instance = this;
        isInited = true;
    }

    private void InitFirstBeganHandler(TouchEventArgs args) 
    {
        //Debug.Log("InitFirstBeganHandler " + args.ToString());
    }

    private void