如何用CSS在React中实现长尾词动画效果？

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React使用CSS实现动画功能示例：以下是一个简单的React组件，展示了如何使用CSS来创建动画效果。

javascriptimport React, { Component } from 'react';

class Boss extends Component { constructor(props) { super(props); this.state={ animationClass: '' }; }

componentDidMount() { setTimeout(()=> { this.setState({ animationClass: 'animate' }); }, 1000); }

render() { return ( 欢迎来到Boss的世界！ ); }}

export default Boss;

CSS部分：css.boss { width: 200px; height: 200px; background-color: red; transition: transform 2s ease;}

.animate { transform: rotate(360deg);}

本文实例讲述了react使用CSS实现react动画功能。分享给大家供大家参考，具体如下：

react动画：

import React, { Component } from 'react'; class Boss extends Component { constructor(props) { super(props); this.state = { isShow:true } this.toTogger=this.toTogger.bind(this) } render() { return ( <div> <div className={this.state.isShow?'show':'hide'}>大BOSS--孙悟空</div> <div><button onClick={this.toTogger}>召唤</button></div> </div> ); } toTogger() { this.setState({ isShow:this.state.isShow?false:true }) } } export default Boss;

css:

.hide{opacity: 1;transition: all 1.5s ease-in;} .show{opacity: 0;transition: all 1.5s ease-in;}

keyframes动画：

.hide{animation: hide-item 2s ease-in forwards;} .show{animation: show-item 2s ease-in forwards;} @keyframes hide-item{ 0%{ opacity: 0; color: red; } 50%{ opacity: 0.5; color: saddlebrown; } 100%{ opacity: 1; color: yellow; } } @keyframes show-item{ 0%{ opacity: 1; color:green; } 50%{ opacity: 0.5; color:greenyellow; } 100%{ opacity: 0; color: yellow; } }

react-transition-group动画库：

import {CSSTransition} from 'react-transition-group'; render() { return ( <div> <CSSTransition in={this.state.isShow} timeout={2000} classNames="boss-text" unmountOnExit > {/* <div className={this.state.isShow?'show':'hide'}>大BOSS--孙悟空</div> */} <div>大BOSS--孙悟空</div> </CSSTransition> <div><button onClick={this.toTogger}>{this.state.btn}</button></div> </div> ); }

.boss-text-enter{opacity: 0;} .boss-text-enter-active{opacity: 1;transition: opacity 2000ms;} .boss-text-enter-done{opacity: 1;} .boss-text-exit{opacity: 1;} .boss-text-exit-active{opacity: 0;transition: opacity 2000ms;} .boss-text-exit-done{opacity: 0;}

多DOM动画：

import React, { Component, Fragment } from 'react'; import List from './List.js'; import axios from 'axios'; import Boss from './Boss'; import {CSSTransition,TransitionGroup} from 'react-transition-group' class Test extends Component { constructor(props) { super(props); this.state={ inputValue:'aaa', list:[], } // this.add=this.add.bind(this); } addList() { this.setState({ list:[...this.state.list,this.state.inputValue], inputValue:'' }) } change(e) { this.setState({ // inputValue:e.target.value inputValue:this.input.value }) } delete(i) { // console.log(i); const list = this.state.list; list.splice(i,1); this.setState({ list:list }) } componentDidMount() { // console.log('componentDidMount'); axios.get('www.easy-mock.com/mock/5e1d3d1564a3c20d7f366f91/ReactDemo1/App') .then((res)=>{ console.log('获取数据'+JSON.stringify(res)); this.setState({ list:res.data.data }); }) .catch((error)=>{console.log('获取数据失败'+error)}); } render() { console.log('3-render'); return ( <Fragment> <div> <input ref={(input)=>{this.input=input}} value={this.state.inputValue} onChange={this.change.bind(this)}/> <button onClick={this.addList.bind(this)}>添加</button> </div> <ul> <TransitionGroup> { this.state.list.map((v,i)=>{ return( <CSSTransition timeout={2000} classNames='boss-text' unmountOnExit key={i} > <List key={i} content={v} index={i} delete={this.delete.bind(this)} /> </CSSTransition> ); }) } </TransitionGroup> </ul> <Boss/> </Fragment> ); } } export default Test;

希望本文所述对大家react程序设计有所帮助。