我也是React
和Material-UI
的新人。我有这个App.js文件:
import React, {Component} from 'react';
import MuiThemeProvider from 'material-ui/styles/MuiThemeProvider';
import AppBar from 'material-ui/AppBar';
import IconButton from 'material-ui/IconButton';
import NavigationMenu from 'material-ui/svg-icons/navigation/menu';
import DrawerMenu from './DrawerMenu';
const AppBarIcon = () => (
<AppBar
title="Title"
iconElementLeft={<IconButton onClick={???}>
<NavigationMenu />
</IconButton>}
/>
);
class App extends Component {
render() {
return (
<div className="App">
<MuiThemeProvider>
<div>
<DrawerMenu />
<AppBarIcon />
</div>
</MuiThemeProvider>
</div>
);
}
}
export default App;
...这是DrawerMenu.js文件:
import React from 'react';
import Drawer from 'material-ui/Drawer';
import MenuItem from 'material-ui/MenuItem';
export default class DrawerSimpleExample extends React.Component {
constructor(props) {
super(props);
this.state = {open: false};
}
handleToggle = () => this.setState({open: !this.state.open});
render() {
return (
<div>
<Drawer open={this.state.open}>
<MenuItem>Menu Item</MenuItem>
<MenuItem>Menu Item 2</MenuItem>
</Drawer>
</div>
);
}
}
有没有办法在App.js文件中设置IconButton的onClick值来设置DrawerMenu的状态open:true
?例如:
<IconButton onClick={ DrawerMenu.setState({open:true}) }>
...或类似的东西?
答案 0 :(得分:2)
您可以使用道具来实现所需的行为。
示例强>
const AppBarIcon = (props) => (
<AppBar
title="Title"
iconElementLeft={<IconButton onClick={props.onIconClick}>
<NavigationMenu />
</IconButton>}
/>
);
class App extends Component {
constructor(props) {
super(props);
this.state = { isOpen: false };
}
onIconClick = () => {
this.setState((prevState) => ({ isOpen: !prevState.isOpen }));
}
render() {
return (
<div className="App">
<MuiThemeProvider>
<div>
<DrawerMenu isOpen={this.state.isOpen} />
<AppBarIcon onIconClick={this.onIconClick} />
</div>
</MuiThemeProvider>
</div>
);
}
}
export default class DrawerSimpleExample extends React.Component {
constructor(props) {
super(props);
this.state = {open: false};
}
handleToggle = () => this.setState({open: !this.state.open});
render() {
return (
<div>
<Drawer open={this.props.isOpen}>
<MenuItem>Menu Item</MenuItem>
<MenuItem>Menu Item 2</MenuItem>
</Drawer>
</div>
);
}
}