UGUI侧边栏自动隐藏小组件

一个侧边栏自动隐藏小组件。留作备用。

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

public enum Direction
{
    up,
    down,
    left,
    right
}

/// 

/// 边缘自动隐藏组件
/// 
public class AutoHideItem : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler
{
    

    //[Header ("检测鼠标的物体")]
    //public RectTransform selfObj;

    [Header ("需要显隐的物体")]
    public RectTransform moveObj;

    [Tooltip ("隐藏方向")]
    public Direction dir = Direction.right;

    [Header ("动画时间")]
    public float duration = 0.4f;

    //[Header("多久自动隐藏")]
    //public float autoHdieTime = 1f;



    float height;   //高度
    float width;    //宽度

    Vector2 originPos;  //初始位置

    private void Awake()
    {
        //if (selfObj == null)
        //{
        //    selfObj = transform.GetComponent();
        //}
        if (moveObj == null)
        {
            moveObj = transform.Find("Viewport").GetComponent();
        }

        //去掉移动物体的射线检测
        try
        {
            moveObj.GetComponent().raycastTarget = false;
        }
        catch (System.Exception)
        {

            throw;
        }
    }

    void Start()
    {
        height = moveObj.rect.height;
        width = moveObj.rect.width;

        //记录初始位置
        originPos = moveObj.anchoredPosition;
    }


    void Show()
    {
        switch (dir)
        {
            case Direction.up:
            case Direction.down:
                moveObj.DOAnchorPosY(originPos.y, duration).SetEase(Ease.OutQuart);
                break;
            case Direction.left:
            case Direction.right:
                moveObj.DOAnchorPosX(originPos.x, duration).SetEase(Ease.OutQuart);
                break;
            default:
                break;
        }
    }

    void Hide()
    {
        switch (dir)
        {
            case Direction.up:
                moveObj.DOAnchorPosY(originPos.y + height, duration).SetEase(Ease.OutQuart);
                break;
            case Direction.down:
                moveObj.DOAnchorPosY(originPos.y - height, duration).SetEase(Ease.OutQuart);
                break;
            case Direction.left:
                moveObj.DOAnchorPosX(originPos.x - width, duration).SetEase(Ease.OutQuart);
                break;
            case Direction.right:
                moveObj.DOAnchorPosX(originPos.x + width, duration).SetEase(Ease.OutQuart);
                break;
            default:
                break;
        }
    }


    public void OnPointerEnter(PointerEventData eventData)
    {
        Show();
    }

    public void OnPointerExit(PointerEventData eventData)
    {
        Hide();
    }

}