<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>托拽进度条</title>
<style>
ul.lanren {
margin: 100px auto;
}
.scale_panel {
color: #999;
position: absolute;
line-height: 18px;
left: 60px;
top: -0px;
}
.scale_panel>span:first-child {
position: absolute;
left: -5rem;
font-size: 2rem;
}
.scale_panel>span:nth-child(2) {
position: absolute;
right: -5rem;
font-size: 2rem;
}
.scale>span {
background-color: red;
width: 3rem;
height: 3rem;
position: absolute;
left: -2px;
top: -15px;
cursor: pointer;
border-radius: 50%;
font-size: 2rem;
}
.scale {
background-repeat: repeat-x;
background-position: 0 100%;
background-image: linear-gradient(to right, #08D7F2 0%, #2BF06A 50%, #2BF06A 50%, #FC6076 100%);
border-left: 1px #83BBD9 solid;
width: 43rem;
height: 1rem;
position: relative;
border-radius: 2rem;
}
.scale>div {
background-repeat: repeat-x;
background-color: red;
/*进度条颜色*/
width: 0px;
position: absolute;
height: 1rem;
width: 0;
left: 0;
bottom: 0;
border-radius: 2rem;
}
.lanren>li {
margin-left: 3.5rem;
position: relative;
list-style: none;
font-size: 3rem;
}
#title {
position: absolute;
top: -6rem;
left: 23rem;
}
</style>
</head>
<body>
<!-- 可拖拽进度条 -->
<ul class="lanren">
<li><span id="title">0</span>
<div class="scale_panel">
<span class="f-left">吃力</span>
<span class="f-right">轻松</span>
<div class="scale" id="bar">
<div></div>
<span id="btn"></span>
</div>
</div>
</li>
</ul>
<script src="js/jquery-1.10.2.min.js"></script>
<script>
// 进度条代码
var scale = function(btn, bar, title) {
this.btn = document.getElementById(btn);
this.bar = document.getElementById(bar);
this.title = document.getElementById(title);
this.step = this.bar.getElementsByTagName("div")[0];
this.init();
};
scale.prototype = {
init: function() {
var f = this,
g = document,
b = window,
m = Math;
f.btn.ontouchstart = function(e) {
var x = (e || b.event).touches[0].clientX;
var l = this.offsetLeft;
var max = f.bar.offsetWidth - this.offsetWidth;
g.ontouchmove = function(e) {
var thisX = (e || b.event).touches[0].clientX;
var to = m.min(max, m.max(-2, l + (thisX - x)));
f.btn.style.left = to + 'px';
f.ondrag(m.round(m.max(0, to / max) * 100), to);
b.getSelection ? b.getSelection().removeAllRanges() : g.selection.empty();
};
g.ontouchend = new Function('this.οnmοusemοve=null');
};
},
ondrag: function(pos, x) {
this.step.style.width = Math.max(0, x) + 'px';
this.title.innerHTML = pos + '%';
}
}
new scale('btn', 'bar', 'title');
// });
</script>
</body>
</html>