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vue實(shí)現(xiàn)勻速輪播效果

更新時(shí)間：2020年06月29日 09:36:20 作者：沫熙瑾年

這篇文章主要為大家詳細(xì)介紹了vue實(shí)現(xiàn)勻速輪播效果，文中示例代碼介紹的非常詳細(xì)，具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下

本文實(shí)例為大家分享了vue實(shí)現(xiàn)勻速輪播效果的具體代碼，供大家參考，具體內(nèi)容如下

不多描述了直接代碼吧

<template>
 <div>
 <div class="box">
  <ul class="ullist" @mouseleave="clearTimeout" @mouseenter="beginTimeout">
  <li><img src="@/assets/401_images/401.gif" alt="" class="Liwidth"></li>
  <li><img src="@/assets/404_images/404.png" alt=""></li>
  <li><img src="@/assets/401_images/401.gif" alt=""></li>
  <li><img src="@/assets/404_images/404.png" alt=""></li>
  <li><img src="@/assets/401_images/401.gif" alt=""></li>
  <li><img src="@/assets/404_images/404.png" alt=""></li>
  <li><img src="@/assets/401_images/401.gif" alt=""></li>
  <li><img src="@/assets/404_images/404.png" alt=""></li>
  <li><img src="@/assets/401_images/401.gif" alt=""></li>
  </ul>
 </div>
 </div>
</template>
<script>
export default {
 data(){
 return{
  screenWidth:'',
  boxWidth:0,
  isClear:0,
  timer:null,
  left:0,
  timerRun:false,
 }
 },
 methods:{
  //獲取窗口的寬度
 getListLeng(){
  this.boxWidth = document.getElementsByClassName('box')[0].offsetWidth
  var ul = document.getElementsByClassName('ullist')[0]
  var length = ul.children.length
  ul.style.width=length*230+'px'
  this.runTimeout(ul,this.boxWidth,length)
 },
 //輪播效果
 runTimeout(ul,boxWidth,length){
  let that = this
  this.timer=setInterval(function(){
  // move();
  
  that.move(ul,boxWidth,length)
  },50) 
 },
 //輪播圖走的方法
 move(ul,boxWidth,length){
  var num = this.left--
  var allWidth =length*230-boxWidth
  if(Math.abs(num)>allWidth){
  ul.style.left=0+'px'
  this.left=0
  }
  ul.style.left=num+'px'
 },
 //移入
 beginTimeout(){
  clearInterval(this.timer)
 },
 //移出
 clearTimeout(){
  clearInterval(this.timer)
  this.timer = null
  this.boxWidth = document.getElementsByClassName('box')[0].offsetWidth
  let ul = document.getElementsByClassName('ullist')[0]
  let length = ul.children.length
  ul.style.width=length*230+'px'
  this.runTimeout(ul,this.boxWidth,length)
 } 
 },
 mounted(){
 this.getListLeng()
 window.onresize = () => {
  return (() => {
  this.boxWidth = document.getElementsByClassName('box')[0].offsetWidth
  })()
 },
 getSwiperList().then(res=>{
  this.bannerList = res.data
 })
 },
 //頁(yè)面銷毀的時(shí)候 關(guān)閉定時(shí)器
 destroyed () {
 clearInterval(this.timer)
 }
}
</script>
<style lang="scss" scped>
 .box{
 height:230px;
 width:80%;
 margin: 200px auto;
 position: relative;
 overflow: hidden;
 ul{
  position: absolute;
 }
 li{
  float: left;
  height:230px;
  width:230px;
  img{
  height:230px;
  width:230px;
  }
 }
 }
</style>

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