執行個體詳解用React加CSS3實現微信拆紅包動畫效果

來源:互聯網
上載者:User
本文主要介紹了用React加CSS3實現拆紅包動畫效果,紅包曾經引爆過一系列的營銷熱潮,相信大家對於這種紅包形式並不陌生,這裡本著娛樂至上的精神用React簡單地實現了拆紅包的動畫效果,希望能協助到大家。

用CSS3繪製紅包

.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);}
<p class='redpack'>  <!--  紅包的頂部蓋子 -->  <p class="topcontent"></p>  <!-- 拆紅包的按鈕 -->  <p id="redpack-open"></p></p>

效果

用React來區分不同的狀態的轉換

用React.js來實現的話,主要通過判斷state來控制紅包現在是等待拆開還是已經拆開過,具體的代碼如下

import React from 'react';class ReadPacket extends React.Component {    constructor(props) {        super(props);        this.state = {            animation: false,            status: 0  // 0: 等待拆開 1: 拆開後        };    }    render() {        var bonus = this.props.thanks ? 0 : parseFloat(this.props.surveyInfo.bonus);        if(this.state.status == 0) {            return (                <p className='redpack-container' id='redpack-container'>                    <p className='redpack'>                        <p className='topcontent'>                            <p id='redpack-opened'>                              <p className='redpack-avatar'>                                <img src='http://placehold.it/80x80' alt='頭像' width='80' height='80'/>                              </p>                            </p>                            <h2 style={{marginTop: 80, color: 'white'}}>獎勵</h2>                            <span className='redpack-text'>點擊下方按鈕領取紅包</span>                            <p className='redpack-description white-text'>恭喜發財 大吉大利</p>                        </p>                        <p id='redpack-open' className={this.state.animation ? 'rotate' : ''}                             onClick={this.openRedPacket.bind(this)}                        >                            <span>拆紅包</span>                        </p>                    </p>                </p>            );        } else if (bonus == 0) {            // 謝謝參與            return (                <p className='redpack-container' id='redpack-container'>                    <p className='redpack'>                        <p className='topcontent-open'>                            <p className='redpack-avatar'>                                <span id='close'></span>                            </p>                            <h1 style={{marginTop: 180, color: 'white'}}> 謝謝參與 </h1>                            <span className='redpack-text'>多多參與的獎勵的機會更多哦</span>                            <br/>                            <a onClick={this._toWallet.bind(this)}                               style={{cursor:'pointer',textDecoration: 'underline', color: 'white'}}>                                去我的賬戶查看                            </a>                        </p>                        <p id='redpack-opened'>                          <p className='redpack-avatar'>                            <img src='http://placehold.it/80x80' alt='頭像' width='80' height='80'/>                          </p>                        </p>                    </p>                </p>            );        } else {            // 顯示獎勵金額            return (                <p className='redpack-container' id='redpack-container'>                    <p className='redpack'>                        <p className='topcontent-open'>                            <p className='redpack-avatar'>                                <span id='close'></span>                            </p>                            <h1 className='white-text' style={{marginTop: 180}}> {bonus.toFixed(2)} </h1>                            <span className='redpack-text'>獎勵積分已經存入您的賬戶</span>                            <a className='btn-flat white-text' onClick={this._toWallet.bind(this)}                               style={{textDecoration: 'underline'}}>                                去我的賬戶查看積分                            </a>                        </p>                        <p id='redpack-opened'>                          <p className='redpack-avatar'>                            <img src='http://placehold.it/80x80' alt='頭像' width='80' height='80'/>                          </p>                        </p>                    </p>                </p>            );        }    }    stopAnimation() {        this.setState({animation: false});    }    showResult() {        this.setState({status: 1});    }    openRedPacket() {        this.setState({animation: true});        setTimeout(this.stopAnimation.bind(this), 3000);        setTimeout(this.showResult.bind(this), 4000);    }    _toWallet() {      // 跳轉到錢包      window.location.hash = '/wallet';    }}export default ReadPacket;
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