项目过程中,开始使用了js的requestAnimationFrame方法实现进度条,但是在数据超级多的时候非常影响性能,如此改用css去实现,优化。
先贴代码:
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>Document</title> <style type="text/css"> *{margin: 0;padding: 0} .box{width: 100px;height: 10px;border-radius: 10px;background: #999;margin: 100px auto;border: 1px solid #ff6780;} .child{position: relative;height:100%;border-radius:inherit;} .process-animate{background: #ff6780;position: absolute;left: 0;top: 0;bottom: 0;border-radius:inherit; animation: process 1s linear forwards ; } @keyframes process { 0%{ left:0;right:100%; } 20%{ right:80% } 40%{ right:60%; } 60%{right:40%;} 80%{right:20%;} 100%{right:0;} } </style></head><body> <div class="box"> <div class="child" style="width:50%"> // child的百分比就是进度条的占比效果 <p class="process-animate"></p> </div> </div></body></html>
效果图(复制代码可查看动态效果):
正常情况下,百分比肯定是根据后台数据进行计算得出的,所以是动态传入的,下面贴vue代码
进度条子组件(progress.vue):
<template> <div class="process-wrapper" :class="{addGray:addGray}"> <div class="process-child" ref="processChild"> <p class="process-animate" :class="{addGray:addGray}"></p> </div> </div></template> <script>export default { props: { addGray: { //置灰 type: Boolean, default: false }, progressWidth: { //进度条百分比 type: Number, default: 0 } }, mounted() { this.$nextTick(() => { console.log(this.addGray, "addGray---"); this.$refs.processChild.style.width = this.progressWidth + "%"; //动态改变进度条 // this.$refs.processChild.style.width = 90 + "%"; 测试效果 }); }};</script> <style lang="scss" scoped>.process-wrapper { width: 1.98rem; height: 0.13rem; margin: 0.12rem 0 0.1rem 0; border-radius: 0.1rem; background: #fff; border: 0.01rem solid #ff6780; &.addGray { background: #999; border: 0.01rem solid #999; } .process-child { position: relative; height: 100%; // width: 100%; //这个width就是动态变化。通过js改变 border-radius: inherit; .process-animate { background: #ff6780; position: absolute; left: 0; top: 0; bottom: 0; border-radius: inherit; animation: process 1s linear forwards; &.addGray { background: #999 !important; // border: 0.01rem solid #999; } } }} @keyframes process { 0% { left: 0; right: 100%; } 20% { right: 80%; } 40% { right: 60%; } 60% { right: 40%; } 80% { right: 20%; } 100% { right: 0; }}</style>
父组件调用:
<!-- 进度条 --> <Progress :addGray="inactive" :progressWidth="progressWidth"></Progress>
看看实际效果:
over;完美用css 解决了js递归动画性能消耗。
到此这篇关于利用css3实现进度条效果及动态添加百分比的文章就介绍到这了,更多相关css3进度条添加动态百分比内容请搜索脚本之家以前的文章或继续浏览下面的相关文章,希望大家以后多多支持脚本之家!