/***
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图片滑动
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新建Image重命名为ScrollPanel+ScrollRect组件，+Mask组件，ScrollRect:Content=GridLayout(拖拽内容=子空对象)，此脚本挂载在ScrollPanel上
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新建空对象重命名为GridLayout为ScrollPanel子对象,+GridLayoutGroup组件
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新建几个Image为GridLayout子对象
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GridLayoutGroup组件：中心点，设置左。Cell Size大小为每一个图片的大小：如300200，WidthHeight为，6张图片，630000*200
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需要引入事件命名空间using UnityEngine.EventSystems;using UnityEngine.UI;
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需要实现拖拽接口IBeginDragHandler,IEndDragHandler
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//新建空对象重命名为ToggleGroup+ToggleGroup组件（开关//单选框使用）
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//新建几个Image重命名为Toggle1为空对象ToggleGroup的子对象+Toggle组件，设置Group为父空对象，设置Graphic为子对象（选中后显示的图片）
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//新建Imagec重命名为ToggleGraphic为Toggle的子对象（选中后显示的图片）
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//为每个Toggle,写一个方法，并注册，
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非子萧201707
*/
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;//需要引入命名空间
using UnityEngine.UI;//需要引入命名空间
//需要实现拖拽开始，结束接口
public class ScrollPanelControl : MonoBehaviour, IBeginDragHandler, IEndDragHandler,IDragHandler
{private ScrollRect scrollRect;//滑动组件
//4张图可滑动3张，(0-1)=1/3=0.333f,0.666f,1,;6张图可滑动5张，1/5=0.2f,0.4f,0.6f,0.8f,1f；10张图片课滑动9张，1/9=0.11f,0.22f;0.33f
private float[] pageArray = new float[] { 0,0.111f,0.222f,0.333f,0.444f,0.555f,0.666f,0.777f,0.888f,1f };//图片数组位置
//private float[] pageArray = new float[] { 0, 0.2f, 0.4f, 0.6f, 0.8f, 1f };//图片数组位置public Toggle[] toggleArray;//（单选框）开关数组；
private float targetHorizontalPosition = 0;//目标位置
private float smoothing = 4f;//滑动速度
private bool isDrag = false;//是否拖拽=否
private bool isDrag2 = false;//是否拖拽=否
private Transform Content;//
private int index=0;
private Button nextButton;//下一个按钮
private Button prevButton;//上一个按钮private void Awake()
{
scrollRect = GetComponent<ScrollRect>();Content =transform.Find("Content"); nextButton = transform.parent.Find("NextPageButton").GetComponent<Button>(); prevButton = transform.parent.Find("LastPageButton").GetComponent<Button>(); prevButton.onClick.AddListener(OnPrevButtonClick); nextButton.onClick.AddListener(OnNextButtonClick);}
void Start()
{
}
void Update()
{
if (!isDrag)
{
scrollRect.horizontalNormalizedPosition = Mathf.Lerp(scrollRect.horizontalNormalizedPosition, targetHorizontalPosition, Time.deltaTime * smoothing);
}
////循环拖动，到尾了，从头开始
//if (Content.position.x > 100f)
//{
// scrollRect.horizontalNormalizedPosition = pageArray[pageArray.Length - 1];
// targetHorizontalPosition = pageArray[pageArray.Length - 1];
// toggleArray[pageArray.Length - 1].isOn = true;
//}
//if (Content.position.x < -17380f)
//{
// scrollRect.horizontalNormalizedPosition = pageArray[0];
// targetHorizontalPosition = pageArray[0];
// toggleArray[0].isOn = true;
//}
}
public void OnDrag(PointerEventData eventData)
{
isDrag = true;
}
public void OnBeginDrag(PointerEventData eventData)//实现接口
{
isDrag = true;
}
public void OnEndDrag(PointerEventData eventData)//实现接口
{
isDrag = false;float posX = scrollRect.horizontalNormalizedPosition; //float offset = Mathf.Abs(pageArray[index] - posX); ////private int index=0; //for (int i = 0; i < pageArray.Length; i++) //{ // float offsetTemp = Mathf.Abs(pageArray[i] - posX); // print("offsetTemp"+offsetTemp); // if (offsetTemp < offset) // { // index = i; // offset = offsetTemp; // } //} //scrollRect.horizontalNormalizedPosition = pageArray[index]; //targetHorizontalPosition = pageArray[index]; //toggleArray[index].isOn = true; //print("offset"+offset); float offset2 = pageArray[index] - posX; //当向右拖动一定距离（0.02），就到达下一页 if (offset2 > 0.015f) { OnPrevButtonClick(); // print("next"); } //当向左拖动一定距离，就到达上一页 if (offset2 < -0.015f) { OnNextButtonClick(); // print("prev"); }}
//上一个按钮点击，显示上一页
public void OnPrevButtonClick()
{
if (index==0)
{
toggleArray[9].isOn = true;
index = 9;
}
else
{
toggleArray[index-1].isOn = true;
index = index - 1;
}
}
//下一个按钮点击,显示下一页
public void OnNextButtonClick()
{
if (index == 9)
{
toggleArray[0].isOn = true;
index = 0;
}
else
{
toggleArray[index+1].isOn = true;
index = index + 1;
}
}
public void OnToggleChange0(bool isOn)
{
//if (isOn)
//{
targetHorizontalPosition = pageArray[0];
//}
}
public void OnToggleChange1(bool isOn)
{
//if (isOn)
//{
targetHorizontalPosition = pageArray[1];
//}
}
public void OnToggleChange2(bool isOn)
{
//if (isOn)
//{
targetHorizontalPosition = pageArray[2];
//}
}
public void OnToggleChange3(bool isOn)
{
//if (isOn)
//{
targetHorizontalPosition = pageArray[3];
//}
}
public void OnToggleChange4(bool isOn)
{
//if (isOn)
//{
targetHorizontalPosition = pageArray[4];
//}
}
public void OnToggleChange5(bool isOn)
{
//if (isOn)
//{
targetHorizontalPosition = pageArray[5];
//}
}
public void OnToggleChange6(bool isOn)
{
//if (isOn)
//{
targetHorizontalPosition = pageArray[6];
//}
}
public void OnToggleChange7(bool isOn)
{
//if (isOn)
//{
targetHorizontalPosition = pageArray[7];
//}
}
public void OnToggleChange8(bool isOn){
//if (isOn)
//{
targetHorizontalPosition = pageArray[8];
//}
}
public void OnToggleChange9(bool isOn)
{
//if (isOn)
//{
targetHorizontalPosition = pageArray[9];
//}
}
}
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