2016-10-04 13:45:21
1 using UnityEngine;
2 using System.Collections;
3 using UnityEngine.EventSystems;
4 using System;
5 using UnityEngine.UI;
6 public class LevelButtonScrollRect : MonoBehaviour, IBeginDragHandler, IEndDragHandler
7 {
8 private ScrollRect scrollRect;
9 private float[] pageArray = new float[] { 0, 0.333f, 0.666f, 1 };
10 public Toggle[] ToggleArray;
11 private float speed = 5f;
12 private float targetHorizontalPosition = 0f;
13 private bool isDraging = false;
14 void Start()
15 {
16 scrollRect = transform.GetComponent<ScrollRect>();
17 }
18
19 void Update()
20 {
21 if (!isDraging)
22 {
23 scrollRect.horizontalNormalizedPosition = Mathf.Lerp(scrollRect.horizontalNormalizedPosition,
24 targetHorizontalPosition, Time.deltaTime * speed);
25 }
26
27 }
28 public void OnBeginDrag(PointerEventData eventData)
29 {
30 isDraging = true;
31 }
32 public void OnEndDrag(PointerEventData eventData)
33 {
34 isDraging = false;
35 // 得到 水平滑动的 值 （0-1）
36 float posX = scrollRect.horizontalNormalizedPosition;
37 int index = 0;
38 float offset = Mathf.Abs(posX - pageArray[index]);
39 // 与 前后比较 距离最短
40 for (int i = 1; i < pageArray.Length; i++)
41 {
42 // 距离 最短
43 float offsetTemp = Mathf.Abs(posX - pageArray[i]);
44 if (offset > offsetTemp)
45 {
46 index = i;
47 offset = offsetTemp;
48 }
49 }
50 targetHorizontalPosition = pageArray[index];
51 ToggleArray[index].isOn = true;
52 }
53 }
时间： 2024-10-13 05:06:55