本文实例为大家分享了UGUI ScrollRect带按钮翻页支持拖拽的具体代码，供大家参考，具体内容如下
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
using UnityEngine;using System.Collections;using UnityEngine.UI;using UnityEngine.EventSystems;using System.Collections.Generic;using System;/// <summary>/// 略知CSharp /// </summary>public class ScrollRectHelper : MonoBehaviour, IBeginDragHandler, IEndDragHandler{ public float smooting = 5; //滑动速度 public List<GameObject> listItem; //scrollview item public int pageCount = 3; //每页显示的项目 ScrollRect srect; float pageIndex; //总页数 bool isDrag = false; //是否拖拽结束 List<float> listPageValue = new List<float> { 0 }; //总页数索引比列 0-1 float targetPos = 0; //滑动的目标位置 float nowindex = 0; //当前位置索引 void Awake() { srect = GetComponent<ScrollRect>(); ListPageValueInit(); } //每页比例 void ListPageValueInit() { pageIndex = (listItem.Count / pageCount)-1; if (listItem != null && listItem.Count != 0) { for (float i = 1; i <= pageIndex; i++) { listPageValue.Add((i / pageIndex)); } } } void Update() { if (!isDrag) srect.horizontalNormalizedPosition = Mathf.Lerp(srect.horizontalNormalizedPosition, targetPos, Time.deltaTime * smooting); } /// <summary> /// 拖动开始 /// </summary> /// <param name="eventData"></param> public void OnBeginDrag(PointerEventData eventData) { isDrag = true; } /// <summary> /// 拖拽结束 /// </summary> /// <param name="eventData"></param> public void OnEndDrag(PointerEventData eventData) { isDrag = false; var tempPos = srect.horizontalNormalizedPosition; //获取拖动的值 var index = 0; float offset = Mathf.Abs(listPageValue[index] - tempPos); //拖动的绝对值 for (int i = 1; i < listPageValue.Count; i++) { float temp = Mathf.Abs(tempPos - listPageValue[i]); if (temp < offset) { index = i; offset = temp; } } targetPos = listPageValue[index]; nowindex = index; } public void BtnLeftGo() { nowindex = Mathf.Clamp(nowindex - 1, 0, pageIndex); targetPos = listPageValue[Convert.ToInt32(nowindex)]; } public void BtnRightGo() { nowindex = Mathf.Clamp(nowindex + 1, 0, pageIndex); targetPos = listPageValue[Convert.ToInt32(nowindex)]; }} |
DEMO 下载地址
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/subsystemp/article/details/50608420
