React实现全局组件的Toast轻提示效果

import Toast from './components/toast'

<button onClick={() => { Toast.info('普通提示') }}>普通提示</button>

Toast.info('普通提示')

const hideLoading = Toast.loading('加载中...', 0, () => {  Toast.success('加载完成')})setTimeout(hideLoading, 2000)

Toast.info("普通",2000)Toast.success("成功",1000,() => {  console.log('回调方法')}))Toast.error("错误")Toast.loading()

import React from 'react'import ReactDOM from 'react-dom'import Toast from './toast'import './toast.css'function createNotification() {  const div = document.createElement('div')  document.body.appendChild(div)  const notification = ReactDOM.render(<Toast />, div)  return {    addNotice(notice) {      return notification.addNotice(notice)    },    destroy() {      ReactDOM.unmountComponentAtNode(div)      document.body.removeChild(div)    }  }}let notificationconst notice = (type, content, duration = 2000, onClose) => {  if (!notification) notification = createNotification()  return notification.addNotice({ type, content, duration, onClose })}export default {  info(content, duration, onClose) {    return notice('info', content, duration, onClose)  },  success(content = '操作成功', duration, onClose) {    return notice('success', content, duration, onClose)  },  error(content, duration , onClose) {    return notice('error', content, duration, onClose)  },  loading(content = '加载中...', duration = 0, onClose) {    return notice('loading', content, duration, onClose)  }}

import React, { Component } from 'react'class ToastBox extends Component {  constructor() {    super()    this.transitionTime = 300    this.state = { notices: [] }    this.removeNotice = this.removeNotice.bind(this)  }  getNoticeKey() {    const { notices } = this.state    return `notice-${new Date().getTime()}-${notices.length}`  }  addNotice(notice) {    const { notices } = this.state    notice.key = this.getNoticeKey()    // notices.push(notice);//展示所有的提示    notices[0] = notice;//仅展示最后一个提示        this.setState({ notices })    if (notice.duration > 0) {      setTimeout(() => {        this.removeNotice(notice.key)      }, notice.duration)    }    return () => { this.removeNotice(notice.key) }  }  removeNotice(key) {    const { notices } = this.state    this.setState({      notices: notices.filter((notice) => {        if (notice.key === key) {          if (notice.onClose) setTimeout(notice.onClose, this.transitionTime)          return false        }        return true      })    })  }  render() {    const { notices } = this.state    const icons = {      info: 'toast_info',      success: 'toast_success',      error: 'toast_error',      loading: 'toast_loading'    }    return (      <div className="toast">        {          notices.map(notice => (            <div className="toast_bg" key={notice.key}>              <div className='toast_box'>                <div className={`toast_icon ${icons[notice.type]}`}></div>                <div className='toast_text'>{notice.content}</div>               </div>            </div>          ))        }      </div>    )  }}export default ToastBox

.toast { position: fixed; left: 0; top: 0; z-index: 999; display: flex; flex-direction: column; } .toast_bg {  position: fixed;  width: 100%;  height: 100%;  left: 0;  top: 0; } .toast_box {  position: relative;  left: 50%;  top: 50%;  width: 2.8rem;  height: 2rem;  margin: -1rem -1.4rem;  background: rgba(0, 0, 0, 0.65);  border-radius: .1rem;  color: #fff; } .toast_text {  position: absolute;  bottom: 16%;  text-align: center;  width: 90%;  margin: 0 5%;  height: .28rem;  overflow: hidden;  text-overflow: ellipsis;  white-space: nowrap; } .toast_icon {  position: relative;  left: 50%;  top: 15%;  margin: -.4rem;  width: .8rem;  height: .8rem; } .toast_loading {  -webkit-animation: loading 1s steps(12, end) infinite;  animation: loading 1s steps(12, end) infinite;  background: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAMAAABEpIrGAAAAM1BMVEUAAAD///////////////////////////////////////////////////////////////+3leKCAAAAEHRSTlMAENCA8KAgsGDgQMCQUDBwhylaLQAAAL1JREFUOMu9U0kSwyAMK9jsS/T/1zZt2pgEZzq9RBeMZYRGDI/70bO5JptjrOAQVTonIJVK5bW2ma9A7VvpK8OdeQfbZectrDnyU+Oo0b68wGK0muDPdxpOciaizq5pkAgiIPAoew2rBVNYZoM2YHbZDNKz/2Ogam3ff5gMEL8wisfh2KKZiFiGWFkk1B7NSbhNQFy4M2+PghbODNsg7y8THM2njiy8gBgcaEUA9GgNJbxh6fJv+NxiFvYmPAFtCQZNK1qZIAAAAABJRU5ErkJggg==") no-repeat;  background-size: 100%; } .toast_success {  background: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAMAAABEpIrGAAAAM1BMVEUAAAD///////////////////////////////////////////////////////////////+3leKCAAAAEHRSTlMA8DAQ0GBP4LCggMBwIJBAIttdjAAAAINJREFUOMvdkUsOwyAMBbH5hUCauf9pK1SlohF438x2LPn52f09+8vUfiNb/gighj8FouEjYCUoQDXiBSD7pdcMiK7XC9wCFmlDO3T20Scgx287ne13pwDU89NOJ3g3maCmJDANqIGRtLj8oi1ed1GMdmcB7wXIYX8QdQZJiM5Em3smbyVICDCOrCqSAAAAAElFTkSuQmCC") no-repeat;  background-size: 100%; } .toast_error {  background: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgBAMAAACBVGfHAAAAMFBMVEUAAAD///////////////////////////////////////////////////////////87TQQwAAAAD3RSTlMA0BDAMODwUKBgsCCAQJClzVPvAAAA0UlEQVQoz2MgErAclv9o44Dgc8b/B4KvBTA+t/3XdgeWivjPG6ACbl8ngNXlp0AN+L8IwtD6DzFm2w+Y3v5sMGW/ACbA9Rms9ZsCTIApH2QR608GhoUKQJ4xA8P8AKCAP5CwF2JgUPwIlPwCFDj/AMRRYJIHCnL8AZkJ1AfkAcUYGNhBpso7MICUgBQw8H4EEv/B5ssDFYA4mAKYWjANfd+Aai3CYZ9BDoM63RDkdEGQ0zE9h+l9zADCDEIGt2/wQEZEwwVepGhgYEdEFGZUEgYAW05XI3jSsVwAAAAASUVORK5CYII=") no-repeat;  background-size: 100%; } .toast_info {  background: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgBAMAAACBVGfHAAAALVBMVEUAAAD///////////////////////////////////////////////////////+hSKubAAAADnRSTlMA4CCAwKBAMJBg8NAQUNhWlbcAAAC+SURBVCjPYyASsLfse+1cgOBzyr0DgocXYHwmv4dtCkwZck8UoAJZDydA1C2H8NnexUAYR99BjNF6CtMbtwhM+QUACUUhIMH6BKz14QEgafcYSPDIgSxifMkAE2CYJwAk6gQQAozPgURfA0KAA0T6JSAE2ECm7lNACDC9BhLvGGACIA6GAFyLohBEC9xQqLeeQKwFA4i1EIfBAeNzuNMVhSBOx/AcpvcxAwgzCDEDGTMaGHhhEYWIShN4VBIGAPvRT5YzufhUAAAAAElFTkSuQmCC") no-repeat;  background-size: 100%; }@-webkit-keyframes loading { 0% {  -webkit-transform: rotate3d(0, 0, 1, 0deg);  transform: rotate3d(0, 0, 1, 0deg); } 100% {  -webkit-transform: rotate3d(0, 0, 1, 360deg);  transform: rotate3d(0, 0, 1, 360deg); } }@keyframes loading { 0% {  -webkit-transform: rotate3d(0, 0, 1, 0deg);  transform: rotate3d(0, 0, 1, 0deg); } 100% {  -webkit-transform: rotate3d(0, 0, 1, 360deg);  transform: rotate3d(0, 0, 1, 360deg); } }