微信红包曾经引爆过一系列的营销热潮，相信大家对于这种红包形式并不陌生，这里本着娱乐至上的精神用React简单地实现了拆红包的动画效果，供大家一起交流学习
用CSS3绘制红包
.redpack {
height: 450px;
background: #A5423A;
width: 300px;
left: 0;
top: 0;
border-radius: 10px;
margin: 0 auto;
}
.topcontent {
height: 300px;
border: 1px solid #BD503A;
background-color: #BD503A;
border-radius: 10px 10px 50% 50% / 10px 10px 15% 15%;
box-shadow: 0px 4px 0px -1px rgba(0,0,0,0.2);
}
#redpack-open {
width: 100px;
height: 100px;
border: 1px solid #FFA73A;
background-color: #FFA73A;
border-radius: 50%;
color: #fff;
font-size: 20px;
display: inline-block;
margin-top: -50px;
box-shadow: 0px 4px 0px 0px rgba(0, 0, 0, 0.2);
}
<div class='redpack'>
<!-- 红包的顶部盖子 -->
<div class="topcontent"></div>
<!-- 拆红包的按钮 -->
<div id="redpack-open"></div>
</div>效果如图：
用React来区分不同的状态的转换
用React.js来实现的话，主要通过判断state来控制红包现在是等待拆开还是已经拆开过，具体的代码如下
import React from 'react';class ReadPacket extends React.Component {
constructor(props) {
super(props);
this.state = {
animation: false,
status: 0 // 0: 等待拆开 1: 拆开后
};
}
render() {
var bonus = this.props.thanks ? 0 : parseFloat(this.props.surveyInfo.bonus);
if(this.state.status == 0) {
return (
<div className='redpack-container' id='redpack-container'>
<div className='redpack'>
<div className='topcontent'>
<div id='redpack-opened'>
<div className='redpack-avatar'>
<img src='http://placehold.it/80x80' alt='头像' width='80' height='80'/>
</div>
</div>
<h2 style={{marginTop: 80, color: 'white'}}>奖励</h2>
<span className='redpack-text'>点击下方按钮领取红包</span>
<div className='redpack-description white-text'>恭喜发财 大吉大利</div>
</div>
<div id='redpack-open' className={this.state.animation ? 'rotate' : ''}
onClick={this.openRedPacket.bind(this)}
>
<span>拆红包</span>
</div>
</div>
</div>
);
} else if (bonus == 0) {
// 谢谢参与
return (
<div className='redpack-container' id='redpack-container'>
<div className='redpack'>
