移动端托拽进度条

2021-10-13 17:34:44 阅读：128 来源： 互联网

标签：scale 进度条 title background 端托 var position 移动 left

<!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>
       
       <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>

标签：scale,进度条,title,background,端托,var,position,移动,left
来源： https://blog.csdn.net/lin_jiejie/article/details/120748564

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移动端托拽进度条