本文旨在用最清楚的結構去實現一些組件的基本功能。希望和大家一起學習，共同進步
效果展示：
測試組件：
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class Test extends Component { constructor(props) { super(props) this.state = { active:1 } } onGroupChange(value) { this.setState({ active: value }) } render() { return ( <div> <RadioGroup onChange={this.onGroupChange.bind(this)} active={this.state.active}> <Radio value={1}>使用余額支付</Radio> <Radio value={2}>使用微信支付</Radio> </RadioGroup> <Button onClick={()=>{ console.log("此時選中的是:"+this.state.active) }}>下一步</Button> </div> ) }}export default Test; |
RadioGroup：
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import React, { Component } from 'react';class RadioGroup extends Component { handleActiveChange(value) { console.log(`${value}被選中了`) this.props.onChange(value) } render() { return ( <div> { React.Children.map(this.props.children, child => { let isActive = this.props.active === child.props.value ? true : false return React.cloneElement(child, { label: child.props.children, value: child.props.value, active: isActive, onClick: this.handleActiveChange.bind(this) }) }) } </div> ) }}export default RadioGroup; |
Radio.jsx：
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import React, { Component } from 'react';import "./radio.scss"class Radio extends Component { render() { return ( <div className="radio-wrap" onClick={this.props.onClick.bind(this,this.props.value)}> <div className="left"> <div className={`circle ${this.props.active === true ? 'active' : ''} `}> <div className="fork"></div> </div> <div className="label">{this.props.label}</div> </div> </div> ) }}export default Radio; |
Radio.scss：
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.radio-wrap { height: 40px; background-color: #ffffff; display: flex; align-items: center; padding: 0px 30px; &:active { background-color: rgb(221, 221, 221); } .left { display: inline-block; .circle { display: inline-block; height: 22px; width: 22px; box-sizing: border-box; border: 1px solid #c5c9cd; border-radius: 50%; background-color: #ffffff; position: relative; } .active{ background-color: #1eb94a; .fork { height: 12px; width: 5px; border-right: 1.5px solid #ffffff; border-bottom: 1.5px solid #ffffff; position: absolute; top: 40%; left: 50%; transform: translate(-50%, -50%) rotate(45deg); } } .label { vertical-align: top; margin-left: 10px; display: inline-block; height: 22px; line-height: 22px; font-size: 14px; } }} |
到此這篇關于react實現Radio組件的示例代碼的文章就介紹到這了,更多相關react實現Radio組件內容請搜索服務器之家以前的文章或繼續瀏覽下面的相關文章希望大家以后多多支持服務器之家！
原文鏈接：https://blog.csdn.net/weixin_42565137/article/details/100564414
