基于vue的懒加载插件
目的：图片或者其他资源进入可视区域后加载
安装使用
直接下载dist目录下的vue-view-lazy.min.js使用
使用npm安装
直接使用
<div> <span v-view-lazy @model="handleModel"></span> </div> <script src="https://cdn.jsdelivr.net/npm/vue@2.5.16/dist/vue.js"></script> <script src="https://www.jb51.net/article/dist/vue-view-lazy.min.js"></script> <script> Vue.use(vViewLazy.default,{}); new Vue({ el:'#app', data:{ msg:'数据' }, methods:{ handleModel(){ console.log('出现了'); }, }, }) </script>
npm:
$ npm install --save-dev vue-view-lazy
引入vue-view-lazy
.main文件
import vView from 'vue-view-lazy' Vue.use(vView,{ error:'../../static/images/loading.png', loading:'../../static/images/loading.gif', });
懒加载图片
.vue文件
<template> <ul> <li v-for="(item,i) in imgs" :key="i"> <img src="#" alt="图片" v-view-lazy="item.src"> </li> </ul> </template> <script> export default { data () { return { msg: 'Welcome to Your Vue.js App', imgs:[ {src:'../../static/images/img1.jpg'}, {src:'../../static/images/img2.png'}, {src:'../../static/images/img2.jpg'}, {src:'../../static/images/img3.jpg'}, {src:'../../static/images/img4.jpg'}, {src:'../../static/images/img5.jpeg'}, ] } }, mounted(){ }, } </script> <style scoped> ... </style>
懒加载数据
.vue文件
<template> <div> <!--@model自定义事件是在该dom在第一次出现在视口内时触发的方法--> <!--v-view-lazy='method' 或 v-view-lazy='(e)=>method(e,...arg)'--> <div v-for="(v,i) in msg" :key="i" v-view-lazy @model="(e)=>getAjaxContent(e,v.msg)"> loading... </div> <div v-for="(v,i) in msg" :key="i" v-view-lazy @model="getAjaxContent()"> loading... </div> </div> </template> <script> export default { data(){ return{ msg:[] } }, mounted(){ fetch('http://localhost:3000/test').then(res=>res.json()).then(res=>{ this.msg = res; }) }, methods:{ getAjaxContent(event,msg){ event.innerText = msg }, } } </script> <style scoped> .cnt { /*background: #ececec;*/ height: 500px; margin-bottom: 50px; } </style>