react 中封装一个简单的滚动条组件
import React, { Component } from 'react' //引入better-scroll import BScroll from 'better-scroll' import './style.scss' export default class AppScroll extends Component { //利用ref精准的获取dom元素 wrapper = React.createRef(); render() { return ( <div className="scroll-wrapper" ref={this.wrapper}> <div className="scroll-content"> {this.props.children} </div> </div> ) } componentDidMount(){ let scroll = new BScroll(this.wrapper.current) // 在用户需要滚动前及时更新滚动视图 scroll.on('beforeScrollStart', ()=>{ scroll.refresh(); }) } }
css
.scroll-wrapper{ width: 100%; height: 100%; overflow: hidden; }