问题
The new react rotuer syntax uses the Link component to move around the routes. But how could this be integrated with materiaul-ui?
In my case, I'm using tabs as the main navigation system, So in theory I should have something like this:
const TabLink = ({ onClick, href, isActive, label }) =>
<Tab
label={label}
onActive={onClick}
/>
export default class NavBar extends React.Component {
render () {
return (
<Tabs>
<Link to="/">{params => <TabLink label="Home" {...params}/>}</Link>
<Link to="/shop">{params => <TabLink label="shop" {...params}/>}</Link>
<Link to="/gallery">{params => <TabLink label="gallery" {...params}/>}</Link>
</Tabs>
)
}
}
But when it renders, material-ui throws an error that the child of Tabs must be a Tab component. What could be the way to proceed? How do I manage the isActive prop for the tab?
Thanks in advance
回答1:
My instructor helped me with using React Router 4.0's withRouter to wrap the Tabs component to enable history methods like so:
import React, {Component} from "react";
import {Tabs, Tab} from 'material-ui';
import { withRouter } from "react-router-dom";
import Home from "./Home";
import Portfolio from "./Portfolio";
class NavTabs extends Component {
handleCallToRouter = (value) => {
this.props.history.push(value);
}
render () {
return (
<Tabs
value={this.props.history.location.pathname}
onChange={this.handleCallToRouter}
>
<Tab
label="Home"
value="/"
>
<div>
<Home />
</div>
</Tab>
<Tab
label="Portfolio"
value="/portfolio"
>
<div>
<Portfolio />
</div>
</Tab>
</Tabs>
)
}
}
export default withRouter(NavTabs)
Simply add BrowserRouter to index.js and you're good to go.
回答2:
Another solution (https://codesandbox.io/s/l4yo482pll) with no handlers nor HOCs, just pure react-router and material-ui components:
import React, { Fragment } from "react";
import ReactDOM from "react-dom";
import Tabs from "@material-ui/core/Tabs";
import Tab from "@material-ui/core/Tab";
import { Switch, Route, Link, BrowserRouter, Redirect } from "react-router-dom";
function App() {
const allTabs = ['/', '/tab2', '/tab3'];
return (
<BrowserRouter>
<div className="App">
<Route
path="/"
render={({ location }) => (
<Fragment>
<Tabs value={location.pathname}>
<Tab label="Item One" value="/" component={Link} to={allTabs[0]} />
<Tab label="Item Two" value="/tab2" component={Link} to={allTabs[1]} />
<Tab
value="/tab3"
label="Item Three"
component={Link}
to={allTabs[2]}
/>
</Tabs>
<Switch>
<Route path={allTabs[1]} render={() => <div>Tab 2</div>} />
<Route path={allTabs[2]} render={() => <div>Tab 3</div>} />
<Route path={allTabs[0]} render={() => <div>Tab 1</div>} />
</Switch>
</Fragment>
)}
/>
</div>
</BrowserRouter>
);
}
const rootElement = document.getElementById("root");
ReactDOM.render(<App />, rootElement);
回答3:
The error you are seeing from material-ui is because it expects to have a <Tab> component rendered as direct child of <Tabs> component.
Now, here is a way that I've found to integrate the link into the <Tabs> component without loosing the styles:
import React, {Component} from 'react';
import {Tabs, Tab} from 'material-ui/Tabs';
import {Link} from 'react-router-dom';
export default class MyComponent extends Component {
render() {
const {location} = this.props;
const {pathname} = location;
return (
<Tabs value={pathname}>
<Tab label="First tab" containerElement={<Link to="/my-firs-tab-view" />} value="/my-firs-tab-view">
{/* insert your component to be rendered inside the tab here */}
</Tab>
<Tab label="Second tab" containerElement={<Link to="/my-second-tab-view" />} value="/my-second-tab-view">
{/* insert your component to be rendered inside the tab here */}
</Tab>
</Tabs>
);
}
}
To manage the 'active' property for the tabs, you can use the value property in the <Tabs> component and you also need to have a value property for each tab, so when both of the properties match, it will apply the active style to that tab.
回答4:
Here's another solution, using the beta of Material 1.0 and adding browser Back/Forward to the mix:
import React from 'react';
import PropTypes from 'prop-types';
import { withStyles } from 'material-ui/styles';
import AppBar from 'material-ui/AppBar';
import Tabs, { Tab } from 'material-ui/Tabs';
import { withRouter } from "react-router-dom";
import Home from "./Home";
import Portfolio from "./Portfolio";
function TabContainer(props) {
return <div style={{ padding: 20 }}>{props.children}</div>;
}
const styles = theme => ({
root: {
flexGrow: 1,
width: '100%',
marginTop: theme.spacing.unit * 3,
backgroundColor: theme.palette.background.paper,
},
});
class NavTabs extends React.Component {
state = {
value: "/",
};
componentDidMount() {
window.onpopstate = ()=> {
this.setState({
value: this.props.history.location.pathname
});
}
}
handleChange = (event, value) => {
this.setState({ value });
this.props.history.push(value);
};
render() {
const { classes } = this.props;
const { value } = this.state;
return (
<div className={classes.root}>
<AppBar position="static" color="default">
<Tabs
value={value}
onChange={this.handleChange}
scrollable
scrollButtons="on"
indicatorColor="primary"
textColor="primary"
>
<Tab label="Home" value = "/" />
<Tab label="Portfolio" value = "/portfolio"/>
</Tabs>
</AppBar>
{value === "/" && <TabContainer>{<Home />}</TabContainer>}
{value === "/portfolio" && <TabContainer>{<Portfolio />}</TabContainer>}
</div>
);
}
}
NavTabs.propTypes = {
classes: PropTypes.object.isRequired,
};
export default withRouter(withStyles(styles)(NavTabs));
回答5:
You can use browserHistory instead of React-Router Link component
import { browserHistory } from 'react-router'
// Go to /some/path.
onClick(label) {
browserHistory.push('/${label}');
}
// Example for Go back
//browserHistory.goBack()
<Tabs>
<Tab
label={label}
onActive={() => onClick(label)}
/>
</Tabs>
As you see you can simply push() your target to the browserHistory
回答6:
As @gkatchmar says you can use withRouter high-order component but you can also use context API. Since @gkatchmar showed withRouter already I will only show context API. Bear in mind that this is an experimental API.
https://stackoverflow.com/a/42716055/3850405
import React, {Component} from "react";
import {Tabs, Tab} from 'material-ui';
import * as PropTypes from "prop-types";
export class NavTabs extends Component {
constructor(props) {
super(props);
}
static contextTypes = {
router: PropTypes.object
}
handleChange = (event: any , value: any) => {
this.context.router.history.push(value);
};
render () {
return (
<Tabs
value={this.context.router.history.location.pathname}
onChange={this.handleChange}
>
<Tab
label="Home"
value="/"
>
<div>
<Home />
</div>
</Tab>
<Tab
label="Portfolio"
value="/portfolio"
>
<div>
<Portfolio />
</div>
</Tab>
</Tabs>
)
}
}
来源：https://stackoverflow.com/questions/41638688/material-uis-tabs-integration-with-react-router-4