在移动端中，用户访问了一个列表页，上拉浏览列表页的过程中，随着滚动高度逐渐增加，数据也将采用触底分页加载的形式逐步增加，列表页浏览到某个位置，用户看到了感兴趣的项目，点击查看其详情，进入详情页，从详情页退回列表页时，需要停留在离开列表页时的浏览位置上，react中没有现成得保留组件状态得方法。
但是有第三方库 react-activation 个人感觉这个好用！
提示：以下是本篇文章正文内容，下面案例可供参考
npm i react-activation
1、在根目录引入 AliveScope
import {AliveScope} from 'react-activation'
import App from './App';
const root = ReactDOM.createRoot(document.getElementById('root'));
root.render(
<BrowserRouter>
<Provider store={store}>
<AliveScope>
<App />
</AliveScope>
</Provider>
</BrowserRouter>
);2、在需要保留状态得组件上使用 KeepAlive 包裹
我要保留cate组件得状态所以使用keepAlive包裹cate组件
import { Navigate } from 'react-router-dom'
import {KeepAlive} from 'react-activation'
// 懒加载路由需要放到普通路由最下面
import NotFound from '../pages/notFound'
import Layout from '../pages/Layout'
import Home from '../pages/Layout/Home'
import Cate from '../pages/Layout/Cate'
import CateItem from '../pages/Layout/CateItem'
import ShopCar from '../pages/Layout/ShopCar'
import Me from '../pages/Layout/Me'
import ItemAll from '../pages/ItemAll'
const routerList = [
{ path: '/', element: <Navigate to="/home" /> },
{
path: '/home', element:<Layout />,children:[
{index:true, element: <Navigate to="index" />},
{path:'index', element: <Home />},
{path:'cate', element: <KeepAlive><Cate /></KeepAlive>}, //这里需要包裹
{path:'cateItem', element: <CateItem />},
{path:'shopcar', element: <ShopCar />},
{path:'Me', element: <Me />},
]
},
{ path: '*', element: <NotFound /> }
]
export default routerList
