Unity ScrollView滑动翻页

直接上代码：

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

public class ScrollViewControl : MonoBehaviour, IBeginDragHandler, IEndDragHandler
{

    public GameObject button_left;  // 左翻页
    public GameObject button_right; // 右翻页
    public int pageCount = 0;       // 总页数

    private ScrollRect sRect;       // 滚动组件
    private float endDragPos;       // 拖拽结束位置0-1
    private bool isDrag = false;    // 是否拖拽结束
    private float m_targetPos = 0;  // 滑动的目标位置0-1
    private float smooting = 5;     // 滑动速度
    private List<float> listPageValue = new List<float> { };  // 总页数索引比列 0-1
    private int index = 0;          // listPageValue下标

    void Start()
    {
        sRect = this.GetComponent<ScrollRect>();
        // 初始化listPageValue数组
        ListPageValueInit();

    }

    void Update()
    {
        // 开始拖拽或移动结束直接返回
        if (isDrag == true)
        {
            return;
        }
        // 移动结束
        if (!isDrag && System.Math.Abs(sRect.horizontalNormalizedPosition - m_targetPos) < 0.001f)
        {
            MovedEnd();
            isDrag = true;
            return;
        }
        // 以当前位置按指定速度朝目标位置移动
        sRect.horizontalNormalizedPosition = Mathf.Lerp(sRect.horizontalNormalizedPosition, m_targetPos, Time.deltaTime * smooting);
    }

    // 每页比例
    void ListPageValueInit()
    {
        for (float i = 0; i < pageCount; i++)
        {
            listPageValue.Add(i / (pageCount - 1));
        }
    }

    // 拖动开始
    public void OnBeginDrag(PointerEventData eventData)
    {
        isDrag = true;
        // 隐藏左右翻页按钮
        button_left.SetActive(false);
        button_right.SetActive(false);
    }

    // 拖拽结束
    public void OnEndDrag(PointerEventData eventData)
    {
        // 正常翻页
        isDrag = false;
        endDragPos = sRect.horizontalNormalizedPosition; // 获取拖动的值

        index = 0;
        float offset = Mathf.Abs(listPageValue[index] - endDragPos);    // 拖动的绝对值
        for (int i = 1; i < listPageValue.Count; i++)
        {
            float temp = Mathf.Abs(endDragPos - listPageValue[i]);
            if (temp < offset)
            {
                index = i;
                offset = temp;
            }
        }
        // 目标位置
        m_targetPos = listPageValue[index];
        
        // 左右拖拽灵敏顺滑
        //isDrag = false;
        //endDragPos = sRect.horizontalNormalizedPosition; //获取拖动的值
        //if (endDragPos < m_targetPos)
        //{
        //    index--;
        //    if (index < 0)
        //    {
        //        index = 0;
        //    }
        //    m_targetPos = listPageValue[index];
        //}
        //else
        //{
        //    index++;
        //    if (index > pageCount - 1)
        //    {
        //        index = pageCount - 1;
        //    }
        //    m_targetPos = listPageValue[index];
        //}
    }

    // 移动结束
    void MovedEnd()
    {
        // 如果就一页直接返回
        if (pageCount <= 1)
        {
            return;
        }
        // 显示/隐藏左右翻页按钮
        if (index == 0)
        {
            button_left.SetActive(false);
            button_right.SetActive(true);
        }
        else if (index == pageCount - 1)
        {
            button_left.SetActive(true);
            button_right.SetActive(false);
        }
        else
        {
            button_left.SetActive(true);
            button_right.SetActive(true);
        }
    }

}

提示：
将这个脚本挂在scrollView控件上，设置scrollView里面content的right和scrollView的width
pageCount根据right和width算出

参考：https://blog.csdn.net/qq302756113/article/details/81132591