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react-route-cache

v1.3.1

Published

keep-alive cache for react router

Downloads

233

Readme

功能

  • 标签式路由组件缓存,开箱即用
  • 每一个新路由切换都会在页面内新增一个标签tab,缓存其路由组件,切换路由或者tab标签组件不会重新加载
  • 支持配置路由组件是否需要缓存
  • 支持 Activated 和 Deactivated 生命周期函数

Demo

CodeSandbox

安装

// npm
npm i react-route-cache -S
// pnpm
pnpm i react-route-cache -S
// yarn
yarn add react-route-cache

使用

给 Layout 组件的 outlet 加上 keep-alive

// Layout.tsx
import { KeepAlive, KeepAliveScope, RouterTabs } from 'react-route-cache';
import { useOutlet } from 'react-router-dom';

const Layout = () => {
  // 需要使用useOutlet
  const outlet = useOutlet();

  return (
    <KeepAliveScope>
      <RouterTabs />
      <KeepAlive>{outlet}</KeepAlive>
    </KeepAliveScope>
  );
};

export default Layout;

路由定义需要增加 name、cache 属性(cache不配置默认开启缓存)

// router.ts
// 也可以是createHashRouter
import Layout form './Layout'

createBrowserRouter([
    {
        path: "/",
        element: <Layout />,
        loader: rootLoader
        children: [
            {
                path: "events",
                element: <Event />,
                // 增加name属性,否则标签没有title,展示出现问题
                // 如果不需要缓存可以配置cache false, 不配置或者true都会开启缓存
                handle: { name: "事件", cache: false},
            }
         ]
      }
]);

生命周期函数

  • useActivated 返回的方法会在 Deactivated 的时候执行。
  • 第二个可选参数是一个依赖项数组,为了更新回调函数里的依赖,一般不会用到,功能类似 useCallback,依赖变化不会执行函数。
import { useActivated, useDeactivated } from 'react-route-cache';

export const Demo = () => {
  useActivated(() => {
    console.log('激活');
    return () => {
      console.log('activated返回的方法会在Deactivated的时候执行');
    };
  });

  useDeactivated(() => {
    console.log('离开组件');
  });

  return <div>123</div>;
};

其他 API

mode

  • 默认匹配路由 path,path 变化则会新增一个 tab,也就是如果查询参数变化不会新增一个 tab 缓存组件
  • 如果希望查询参数变化也会新增一个 tab 需要将 mode 改为 search

nameKey:如果路由 name 已被占用,可以通过该字段获取 handle 下其他字段的信息作为 tab 的 title

interface KeepAliveScopeProps {
  mode?: "path" | "search";
  nameKey?: string;
}
<KeepAliveScope mode="search" nameKey="tabName" />

close、closeAll、closeNavigator

  • close 方法用于关闭当前标签页
  • closeAll 用于关闭除了当前激活的 tab 所有的标签页
  • closeNavigator 是为了解决比如表单创建页,创建完之后需要跳转到其他路由。closeNavigator 会关闭当前创建页标签,然后跳转到指定路由。是 close()和 navigator(url)的语法糖。
import { useKeepAlive } from '../hooks/use-keep-alive';
...
  const { close, closeAll, closeNavigator } = useKeepAlive();
  close()
  closeAll()
  // 是close()和navigator方法跳转到其他路由
  closeNavigator(url)
...

开发 & 调试

// 构建
npm run build
// 构建后运行example调试
npm run start -w example