Question

所以我一直在努力解决这个问题。我有一个接受一个孩子作为道具的组件，它应该是我托管的所有页面的基础。

Base.jsx：

import React from 'react';
import PropTypes from 'prop-types';
import { Link, NavLink } from 'react-router-dom';

const Base = ({ child }) => (
    <div>
        <div className="top-bar">
            <div className="top-bar-left">
                <NavLink to="/">React App</NavLink>
            </div>

            <div className="top-bar-right">
                <Link to="/login">Log in</Link>
            </div>

        </div>

        {child.render()} // HERE IS THE CHILD TO RENDER

    </div>
);

Base.propTypes = {
    child: PropTypes.object.isRequired
};
export default Base;

然后，在app.jsx中，ReactDom.render()所在的位置，我有：

import React from 'react';
import ReactDom from 'react-dom';
import injectTapEventPlugin from 'react-tap-event-plugin';
import getMuiTheme from 'material-ui/styles/getMuiTheme';
import MuiThemeProvider from 'material-ui/styles/MuiThemeProvider';
import {BrowserRouter, Switch, Route} from 'react-router-dom';
import LoginPag from './components/LoginPag.jsx';
import Base from './components/Base.jsx';
import HomePage from './components/HomePage.jsx';

// for MaterialUI to work properly
injectTapEventPlugin();

const TestLogin = (props) => {
    return (<Base child={LoginPag} />);
};

const TestBase = (props) => {
    return(<Base child={HomePage}/>)
};

ReactDom.render((<BrowserRouter><MuiThemeProvider muiTheme={getMuiTheme()}>
    <div>
    <Switch>
        <Route exact path="/" component={TestBase} />
        <Route exact path="/login" component={TestLogin}/>
    </Switch>
    </div>
    </MuiThemeProvider>
</BrowserRouter>), document.getElementById('react-app'));

最后，HomePage和LoginPag看起来很像，这里是HomePage.jsx：

import React from 'react';
import { Card, CardTitle } from 'material-ui/Card';

const HomePage = {
    render() {
        return (<Card className="container">
            <CardTitle title="React Application" subtitle="This is the home page." />
        </Card>);
    }
};

export default HomePage;

我现在的问题是：是否有可能摆脱这些抽象TestLogin和TestBase？

我的最终目标是拥有这样的东西：

<Route exact path="/" component={Base(HomePage)} />，也就是说摆脱抽象层并直接将其渲染成一行。

提前致谢。

编辑：感谢anuragasaurus，我可以实现我想要的目标。我也可以上课吗？该类声明为class LoginPage extends React.Component并具有render()方法。

Answer 1

您可以使用render以内联方式显示您的组件，

<Route exact path="/" render={()=><Base child={HomePage} />} />
<Route exact path="/login" render={()=><Base child={LoginPage} />}/>

Answer 2

使用简单的对象和类：

const Base = ({ child }) => (
    <div>
        <div className="top-bar">
            <div className="top-bar-left">
                <NavLink to="/">React App</NavLink>
            </div>

            <div className="top-bar-right">
                <Link to="/login">Log in</Link>
            </div>

        </div>

        {child}

    </div>
);

和

const TestLogin = (props) => {
    return (<Base child={<LoginPage/>} />);
};

const TestBase = (props) => {
    return(<Base child={<HomePage}/>/>)
};

回答整个问题：

<Route exact path="/" render={()=><Base child={<HomePage/>} />} />
<Route exact path="/login" render={()=><Base child={<LoginPage/>} />}/>

通过React-router

2 个答案: