首先需要項目中安裝events 包： npm install events --save 在src下新建一個util目錄里面建一個events.js import { EventEmitter } from 'events';export default new EventEmitter();list1.jsximport React, { Component } from 'react'; import emitter from '../util/events';class List extends Component {constructor(props) {super(props);this.state = {message: 'List1',};}componentDidMount() {// 組件裝載完成以后聲明一個自定義事件this.eventEmitter = emitter.addListener('changeMessage', (message) => {this.setState({message,});});}componentWillUnmount() {emitter.removeListener(this.eventEmitter);}render() {return (<div>{this.state.message}</div>);} }export default List;List2.jsx import React, { Component } from 'react'; import emitter from '../util/events';class List2 extends Component {handleClick = (message) => {emitter.emit('changeMessage', message);};render() {return (<div><button onClick={this.handleClick.bind(this, 'List2')}>點擊我改變List1組件中顯示信息</button></div>);} } export default List2;APP.jsximport React, { Component } from 'react'; import List1 from './components/List1'; import List2 from './components/List2';export default class App extends Component {render() {return (<div><List1 /><List2 /></div>);} }

react 兄弟組件如何調用對方的方法??https://segmentfault.com/a/1190000016764713

　　

轉載于:https://www.cnblogs.com/whlBooK/p/11207532.html

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