1：添加 Scroll View 组件，脚本挂载这里 2 3 4 5
脚本挂载游戏对象上，自己调下都可以直接用
using UnityEngine.UI; using UnityEngine.EventSystems; using System.Collections.Generic; using System; using UnityEngine; using System.Linq; using DG.Tweening; public class HorizontalScrollPage : MonoBehaviour, IBeginDragHandler, IEndDragHandler { //通常滑动速度 private float NormalSmooting = 15; //滑动最快速度 private float MaxSmooting = 1000; //当前速度 public float Smooting; //每页显示的项目 public int PageCount = 1; //灵敏度 private float Sensitivity = 0.1f; //触摸的开始点 private float BeginDragPos; //获取ScrollRect private ScrollRect Srect; //获取Content private Transform Content; //获取Content里面的项目列表 private Image[] ItemList; //总页数 private float PageIndex; //用来判断拖拽是否结束 private bool IsDrag = false; //总页数索引比列 0-1 private List<float> PageValueList = new List<float>(); //滑动的目标位置 private float TargetPos = 0; //当前位置索引 public float NowIndex = 0; //是否使用过度动画 public bool IsUseAni; public event Action StartEvent; public event Action EndEvent; public bool EventFinish; void Awake() { IsUseAni = true; Smooting = NormalSmooting; Srect = GetComponent<ScrollRect>(); Content = Srect.content; HorizontalLayoutGroup contentHGroup; if (Content.gameObject.GetComponent<HorizontalLayoutGroup>() == null) { contentHGroup = Content.gameObject.AddComponent<HorizontalLayoutGroup>(); } else { contentHGroup = Content.gameObject.GetComponent<HorizontalLayoutGroup>(); } contentHGroup.childAlignment = TextAnchor.MiddleCenter; contentHGroup.childControlHeight = false; contentHGroup.childControlWidth = false; if (Content.childCount != 0) { ListAddItem(); ListPageValueInit(); TurningToNoAnima(0); } } void Start(){ } void ListAddItem() { ItemList = new Image[Content.childCount]; for (int i = 0; i < Content.childCount; i++) { ItemList[i] = Content.GetChild(i).GetComponent<Image>(); } } //每页比例 void ListPageValueInit() { PageIndex = (ItemList.Length / PageCount) - 1; if (ItemList != null && ItemList.Length != 0) { for (float i = 0; i <= PageIndex; i++) { PageValueList.Add((i / PageIndex)); } } } void Update() { if (IsUseAni) { if (!IsDrag) { Srect.horizontalNormalizedPosition = Mathf.Lerp(Srect.horizontalNormalizedPosition, TargetPos, Time.deltaTime * Smooting); if (EventFinish) { EndEvent?.Invoke(); EventFinish = false; } } } else { Srect.horizontalNormalizedPosition = TargetPos; IsUseAni = true; EndEvent?.Invoke(); } } /// <summary> /// 拖动开始 /// </summary> /// <param name="eventData"></param> public void OnBeginDrag(PointerEventData eventData) { StartEvent?.Invoke(); IsDrag = true; BeginDragPos = Srect.horizontalNormalizedPosition; } /// <summary> /// 拖拽结束 /// </summary> /// <param name="eventData"></param> public void OnEndDrag(PointerEventData eventData) { EventFinish = true; IsDrag = false; //获取拖动的值 var tempPos = Srect.horizontalNormalizedPosition; tempPos = tempPos > BeginDragPos ? tempPos + Sensitivity : tempPos - Sensitivity; var index = 0; //拖动的绝对值 float offset = Mathf.Abs(PageValueList[index] - tempPos); for (int i = 1; i < PageValueList.Count; i++) { float temp = Mathf.Abs(tempPos - PageValueList[i]); if (temp < offset) { index = i; offset = temp; } } TargetPos = PageValueList[index]; NowIndex = index; } public void BtnLeftGo() { StartEvent?.Invoke(); NowIndex = Mathf.Clamp(NowIndex - 1, 0, PageIndex); TargetPos = PageValueList[Convert.ToInt32(NowIndex)]; } public void BtnRightGo() { StartEvent?.Invoke(); NowIndex = Mathf.Clamp(NowIndex + 1, 0, PageIndex); TargetPos = PageValueList[Convert.ToInt32(NowIndex)]; } /// <summary> /// 通常速度翻页去指定页面 /// </summary> /// <param name="num">页码</param> public void NormalSmootingTurningTo(int num) { StartEvent?.Invoke(); Smooting = 15; NowIndex = Mathf.Clamp(num, 0, PageIndex); TargetPos = PageValueList[Convert.ToInt32(NowIndex)]; } /// <summary> /// 指定速度去指定页面 /// </summary> /// <param name="num">页码</param> /// <param name="speed">速度</param> public void SetSmootingTurningTo(int num, float speed) { StartEvent?.Invoke(); Smooting = speed; NowIndex = Mathf.Clamp(num, 0, PageIndex); TargetPos = PageValueList[Convert.ToInt32(NowIndex)]; Smooting = NormalSmooting; } /// <summary> /// 最快速度到指定页面 /// </summary> /// <param name="num">页码</param> public void MaxSmootingTurningTo(int num) { StartEvent?.Invoke(); Smooting = MaxSmooting; NowIndex = Mathf.Clamp(num, 0, PageIndex); TargetPos = PageValueList[Convert.ToInt32(NowIndex)]; Smooting = NormalSmooting; } public void TurningToNoAnima(int num) { StartEvent?.Invoke(); IsUseAni = false; NowIndex = num; TargetPos = PageValueList[Convert.ToInt32(NowIndex)]; } }MyBe
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