2024年11月03日 建站教程
今天web建站小编给大家介绍一个vue的图片水平瀑布流效果功能,下面是源代码!
1、template代码:
<template> <div> <div class="list-box" @scroll="scrollFun"> <compList :pbList="pbList" ref="compList"></compList> </div> </div> </template>
compList组件代码:
<template> <div class="tab-container" id="tabContainer"> <div class="tab-item" v-for="(item, index) in pbList" :key="index"> <img :src="/staticitem.url" /> </div> </div> </template> <script> export default { name:'compList', props:{ pbList:{ type:Array, default:()=>{return []} } }, data() { return { }; }, mounted() { this.$nextTick(()=>{ this.waterFall("#tabContainer", ".tab-item"); //实现瀑布流 }) }, methods: { waterFall( wrapIdName, contentIdName, columns = 5, columnGap = 20, rowGap = 20 ) { // 获得内容可用宽度(去除滚动条宽度) const wrapContentWidth = document.querySelector(wrapIdName).offsetWidth; // 间隔空白区域 const whiteArea = (columns - 1) * columnGap; // 得到每列宽度(也即每项内容宽度) const contentWidth = parseInt((wrapContentWidth - whiteArea) / columns); // 得到内容项集合 const contentList = document.querySelectorAll(contentIdName); // 成行内容项高度集合 const lineConentHeightList = []; for (let i = 0; i < contentList.length; i++) { // 动态设置内容项宽度 contentList[i].style.width = contentWidth + "px"; // 获取内容项高度 const height = contentList[i].clientHeight; if (i < columns) { // 第一行按序布局 contentList[i].style.top = "0px"; contentList[i].style.left = contentWidth * i + columnGap * i + "px"; // 将行高push到数组 lineConentHeightList.push(height); } else { // 其他行 // 获取数组最小的高度 和 对应索引 let minHeight = Math.min(...lineConentHeightList); let index = lineConentHeightList.findIndex( (listH) => listH === minHeight ); contentList[i].style.top = minHeight + rowGap +"px"; contentList[i].style.left = (contentWidth + columnGap) * index + "px"; // 修改最小列的高度 最小列的高度 = 当前自己的高度 + 拼接过来的高度 + 行间距 lineConentHeightList[index] += height + rowGap; } } }, }, }; </script> <style scoped> * { margin: 0; padding: 0; } /* 最外层大盒子 */ .tab-container { padding-top: 20px; position: relative; } /* 每个小盒子 */ .tab-container .tab-item { position: absolute; height: auto; border: 1px solid #ccc; box-shadow: 0 2px 4px rgba(0, 0, 0, .12), 0 0 6px rgba(0, 0, 0, .04); background: white; /* 元素不能中断显示 */ break-inside: avoid; text-align: center; } .tab-container .tab-item img { width: 100%; height: auto; display: block; } </style>
script代码:
import compList from "@/components/compList"; export default { name:'testList', components:{ compList }, data() { return { //瀑布流数据 pbList: [ { url: '图片地址'} ], addList:[ { url: '图片地址'} ], bottomMain:true }; }, methods:{ scrollFun(e) { const offsetHeight= e.target.offsetHeight const scrollHeight= e.target.scrollHeight const scrollTop= e.target.scrollTop if((scrollHeight - (offsetHeight+scrollTop)) < 10){ if(this.bottomMain){ this.bottomMain = false this.addListDataFun() } } }, addListDataFun(){ this.$Spin.show({ render: (h) => { return h('div', [ h('Icon', { 'class': 'demo-spin-icon-load', props: { type: 'ios-loading', size: 18 } }), h('div', '数据更新中...') ]) } }); setTimeout(() => { this.pbList = this.pbList.concat(this.addList) this.bottomMain = true this.$nextTick(()=>{ this.$refs.compList.waterFall("#tabContainer", ".tab-item") this.$Spin.hide() }) },1000) } } };
css代码:
.list-box{ position: relative; width: 100%; height: calc(100vh - 240px); background: white; padding: 20px 30px 20px 20px; margin-top: 20px; box-sizing: border-box; overflow: auto; }
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