在有些情况下，有很多列表不能一次性显示完整，需要对其进行分页处理

博主自己也写了一个分页系统，在这里记录下来，方便以后直接拿来使用

这篇文章Demo也将上传给大家下载参考：点击打开链接

先展示下效果图：

·效果图一

·效果图二

总的来说，要考虑到的逻辑情况还是有点的

工程目录结构如下图：

在每个UIPage下有一个Image框，用来编辑当前是那一页，默认activate=false

整个思路是当点击UIPage获取里面的页数数值，根据这个数值刷新下UIPage的Text值

在确定哪个UIPage下的Image的activate为true

将以下脚本组件挂载到UIPage上

using System.Collections;using System.Collections.Generic;using UnityEngine;using UnityEngine.EventSystems;using UnityEngine.UI; public class UIPage : EventTrigger{ public Image image = null; public Image GetImage { get { if (image = null) { image = this.transform.GetChild(0).GetComponent<Image>(); } return image; } set { image = value; } } public Text text = null; public Text GetText { get { if (text = null) { text = this.transform.GetChild(1).GetComponent<Text>(); } return text; } set { text = value; } } //点击UI_Page public override void OnPointerClick(PointerEventData eventData) { if (this.transform.GetChild(1).GetComponent<Text>().text == "..." || this.transform.GetChild(1).GetComponent<Text>().text == "") { return; } PageGrid pg = PageGrid.GetInstance; //如果点击的是前面几个ui（点击的是1-5） if (int.Parse(this.transform.GetChild(1).GetComponent<Text>().text) < PageGrid.GetInstance.uiPageArray.Length) { string text = this.transform.GetChild(1).GetComponent<Text>().text; //更新显示 PageGrid.GetInstance.UpadateUIPageFromHead(); UIPage uiPage = PageGrid.GetInstance.FindUIPageWithText(text); if (uiPage) { PageGrid.GetInstance.ActivatUIPageImage(this.gameObject); } } //点击最后几个（点击的是最后4个） else if (int.Parse(this.transform.GetChild(1).GetComponent<Text>().text) >= PageGrid.GetInstance.maxPageIndex - 3) { string text = this.transform.GetChild(1).GetComponent<Text>().text; //更新显示 PageGrid.GetInstance.UpdateUIPageFromEnd(); UIPage uiPage = PageGrid.GetInstance.FindUIPageWithText(text); if (uiPage) { PageGrid.GetInstance.ActivatUIPageImage(uiPage.gameObject); } } else { string text = this.transform.GetChild(1).GetComponent<Text>().text; //更新显示 PageGrid.GetInstance.UpdateUIPageFromMiddle(text); } }}

在做完了UIPage的点击事件后，需要实现页面跳转（左右按钮的点击实际也是一个跳转）

using System.Collections;using System.Collections.Generic;using UnityEngine;using UnityEngine.UI; /// <summary>/// 管理UIPage/// </summary>public class PageGrid : MonoBehaviour{ //在初始化时最大的页数 public int maxPageIndex = 100; [HideInInspector] public UIPage[] uiPageArray { get; set; } private static PageGrid _instance; public static PageGrid GetInstance { get { if (_instance == null) { _instance = GameObject.FindGameObjectWithTag("pageGrid").GetComponent<PageGrid>(); } return _instance; } } private void Start() { //获取其子节点UIPage组件 uiPageArray = this.GetComponentsInChildren<UIPage>(); //初始化子节点ui显示 UpadateUIPageFromHead(); } /// <summary> /// 在UIPage上更新 /// </summary> public void UpadateUIPageFromHead() { //从一开始计数 int headPageIndex = 1; int n_pageHeadIndex = headPageIndex; //页数大于UIPage数（大于6） if (maxPageIndex > uiPageArray.Length) { foreach (var item in uiPageArray) { //倒数第二个 if (headPageIndex - n_pageHeadIndex == uiPageArray.Length - 2) { item.transform.GetChild(1).GetComponent<Text>().text = "..."; } //倒数第一个 else if (headPageIndex - n_pageHeadIndex == uiPageArray.Length - 1) { item.transform.GetChild(1).GetComponent<Text>().text = maxPageIndex.ToString(); } else { item.transform.GetChild(1).GetComponent<Text>().text = headPageIndex.ToString(); } headPageIndex++; } } //页数等于UIPage数 else if (maxPageIndex == uiPageArray.Length) { foreach (var item in uiPageArray) { item.transform.GetChild(1).GetComponent<Text>().text = headPageIndex.ToString(); headPageIndex++; } } else { for (int i = 0; i < maxPageIndex; i++) { uiPageArray[i].transform.GetChild(1).GetComponent<Text>().text = headPageIndex.ToString(); headPageIndex++; } } } /// <summary> /// 在UIPage上更新 /// </summary> public void UpdateUIPageFromEnd() { //页数大于UIPage数（大于6） if (maxPageIndex > uiPageArray.Length) { int count = maxPageIndex; for (int i = uiPageArray.Length - 1; i > 0; i--) { if (i == 0) { uiPageArray[i].transform.GetChild(1).GetComponent<Text>().text = "1"; } else if (i == 1) { uiPageArray[i].transform.GetChild(1).GetComponent<Text>().text = "..."; } else { uiPageArray[i].transform.GetChild(1).GetComponent<Text>().text = count.ToString(); count--; } } } else { int count = 1; for (int i = 0; i < maxPageIndex; i++) { uiPageArray[i].transform.GetChild(1).GetComponent<Text>().text = count.ToString(); count++; } } } /// <summary> /// 在UIPage中间更新 /// </summary> public void UpdateUIPageFromMiddle(string number) { int count = int.Parse(number); for (int i = 0; i < uiPageArray.Length; i++) { if (i == 0) { uiPageArray[i].transform.GetChild(1).GetComponent<Text>().text = "1"; } else if (i == 1 || i == uiPageArray.Length - 2) { uiPageArray[i].transform.GetChild(1).GetComponent<Text>().text = "..."; } else if (i == uiPageArray.Length - 1) { uiPageArray[i].transform.GetChild(1).GetComponent<Text>().text = maxPageIndex.ToString(); } else { uiPageArray[i].transform.GetChild(1).GetComponent<Text>().text = count.ToString(); count++; } } } //需要和服务器交互TODO public void ActivatUIPageImage(GameObject uiPage) { //将全部uiPage的Image取消激活 foreach (var item in uiPageArray) { item.transform.GetChild(0).gameObject.SetActive(false); } uiPage.transform.GetChild(0).gameObject.SetActive(true); } /// <summary> /// 按文本内容查询 /// </summary> /// <param name="text"></param> public UIPage FindUIPageWithText(string text) { foreach (var item in uiPageArray) { if (item.transform.GetChild(1).GetComponent<Text>().text == text) { return item; } } return null; } private UIPage FindUIPageWithImage() { foreach (var item in uiPageArray) { if (item.transform.GetChild(0).gameObject.activeInHierarchy) { return item; } } return null; } /// <summary> /// 页面跳转 /// </summary> public void JumpPage()//这里用于输入框回车事件 { //获取输入信息 string number = GameObject.FindGameObjectWithTag("PageInputField").GetComponent<InputField>().text; if (string.IsNullOrEmpty(number)) { return; } //查询前面几个ui（点击的是1-4） if (int.Parse(number) < PageGrid.GetInstance.uiPageArray.Length - 1) { PageGrid.GetInstance.UpadateUIPageFromHead(); UIPage uiPage = PageGrid.GetInstance.FindUIPageWithText(number); if (uiPage) { GameObject obj = uiPage.gameObject; PageGrid.GetInstance.ActivatUIPageImage(obj); } } //查询最后几个（点击的是最后4个） else if (int.Parse(number) >= PageGrid.GetInstance.maxPageIndex - 3) { PageGrid.GetInstance.UpdateUIPageFromEnd(); UIPage uiPage = PageGrid.GetInstance.FindUIPageWithText(number); if (uiPage) { GameObject obj = uiPage.gameObject; PageGrid.GetInstance.ActivatUIPageImage(obj); } } else { UpdateUIPageFromMiddle(number); UIPage uiPage = PageGrid.GetInstance.FindUIPageWithText(number); if (uiPage) { GameObject obj = uiPage.gameObject; PageGrid.GetInstance.ActivatUIPageImage(obj); } } } /// <summary> /// 跳转 /// </summary> /// <param name="str"></param> public void JumpPage(string str) { //获取输入信息 string number = str; //查询前面几个ui（点击的是1-4） if (int.Parse(number) < PageGrid.GetInstance.uiPageArray.Length - 1) { PageGrid.GetInstance.UpadateUIPageFromHead(); UIPage uiPage = PageGrid.GetInstance.FindUIPageWithText(number); if (uiPage) { GameObject obj = uiPage.gameObject; PageGrid.GetInstance.ActivatUIPageImage(obj); } } //查询最后几个（点击的是最后4个） else if (int.Parse(number) >= PageGrid.GetInstance.maxPageIndex - 3) { PageGrid.GetInstance.UpdateUIPageFromEnd(); UIPage uiPage = PageGrid.GetInstance.FindUIPageWithText(number); if (uiPage) { GameObject obj = uiPage.gameObject; PageGrid.GetInstance.ActivatUIPageImage(obj); } } else { UpdateUIPageFromMiddle(number); UIPage uiPage = PageGrid.GetInstance.FindUIPageWithText(number); if (uiPage) { GameObject obj = uiPage.gameObject; PageGrid.GetInstance.ActivatUIPageImage(obj); } } } /// <summary> /// 页面选择按钮 /// </summary> /// <param name="selection">（向左：-1）（ 向右：1）</param> public void OnBtnRight(string selection) { UIPage uiPage = PageGrid.GetInstance.FindUIPageWithImage(); if (uiPage) { //当前页面是最后一页或者是第一页 if (int.Parse(uiPage.transform.GetChild(1).GetComponent<Text>().text) == maxPageIndex && selection == "1" || int.Parse(uiPage.transform.GetChild(1).GetComponent<Text>().text) == 1 && selection == "-1") { return; } else { //跳转页面 JumpPage((int.Parse(uiPage.transform.GetChild(1).GetComponent<Text>().text) + int.Parse(selection)).ToString()); } } }}

将该脚本挂载到父节点pageGrid上

最后需要将条形框回车事件绑定上去

这样一个完成简单分页系统

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。