【原生Javascript案例】圆形进度条
作者:互联网
案例效果
代码编写
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
.container {
width: 300px;
height: 300px;
margin: 100px auto;
/* border: 1px solid #000; */
}
.circle-progressbar {
position: relative;
width: 100%;
height: 100%;
}
.circle-progressbar .title {
margin: 0;
text-align: center;
line-height: 300px;
}
.circle-progressbar div {
box-sizing: border-box;
}
.circle-progressbar .wrapper {
position: absolute;
top: 0;
width: 150px;
height: 300px;
/* border: 1px solid red; */
overflow: hidden;
}
.circle-progressbar .wrapper.left-wrapper {
left: 0;
}
.circle-progressbar .wrapper.right-wrapper {
right: 0;
}
.circle-progressbar .wrapper .circle-bar {
position: absolute;
width: 300px;
height: 300px;
border: 30px solid transparent;
border-radius: 50%;
transform: rotate(-135deg);
transition: transform .3s;
}
.circle-progressbar .left-wrapper .circle-bar {
left: 0;
border-left-color: turquoise;
border-bottom-color: turquoise;
}
.circle-progressbar .right-wrapper .circle-bar {
right: 0;
border-right-color: turquoise;
border-top-color: turquoise;
}
</style>
</head>
<body>
<div class="container">
<div class="circle-progressbar">
<h1 class="title">0%</h1>
<div class="wrapper left-wrapper">
<div class="circle-bar"></div>
</div>
<div class="wrapper right-wrapper">
<div class="circle-bar"></div>
</div>
</div>
</div>
<script>
const circleProgressBar = CircleProgressBar();
let p = 0;
let t = setInterval(() => {
circleProgressBar( ++ p);
}, 200);
function CircleProgressBar() {
const oLeftCircleBar = getCircleBar('left'),
oRightCircleBar = getCircleBar('right'),
oTitle = document.querySelector('.circle-progressbar .title');
// percent : 百分比
return function(percent) {
if(percent >= 0 && percent <= 50) {
setRotate(oRightCircleBar, percent)
}else if(percent >= 50 && percent <= 100) {
setRotate(oLeftCircleBar, percent - 50)
}
if(percent >= 0 && percent <= 100) {
oTitle.innerText = percent + '%';
}
}
function formatDegree(percent) {
return `rotate(${ -135 + (360 / 100 * percent) }deg)`
}
function setRotate(node, percent) {
node.style.transform = formatDegree(percent)
}
function getCircleBar(dir) {
return document.querySelector(`.circle-progressbar .${ dir }-wrapper .circle-bar`);
}
}
</script>
</body>
</html>
标签:原生,进度条,Javascript,percent,wrapper,progressbar,300px,circle,border 来源: https://blog.csdn.net/Lyb__/article/details/123635943