1. 程式人生 > 程式設計 >JavaScript實現可拖拽的進度條

JavaScript實現可拖拽的進度條

本文例項為大家分享了javascript實現可拖拽的進度條的具體程式碼,供大家參考,具體內容如下

一.進度條實現

<html>
<head>
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width,initial-scale=1">
  <meta charset="UTF-8">
<title>可拖拽進度條</title>
<style>
body{
 margin:50px; ; 
}

.box {
  width:49%;
  hegiht:3rem;
  line-height:3rem;
  float:left;
}
.boxDesc {
  width:50%;
  hegiht:3rem;
  line-height:0.3rem;
  float:left;
}

.scale span{
 background:url(scroll.gif) no-repeat; 
 width:8px;
 height:16px; 
 position:absolute; 
 left:-2px;
 top:-5px;
 cursor:pointer;
}
.scale{ background-repeat: repeat-x; background-position: 0 100%; background-color: #E4E4E4; border-left: 1px #83BBD9 solid;  width: 100%; height: 10pxwww.cppcns.com
; position: relative; font-size: 0px; border-radius: 3px; } .scale div{程式設計客棧 background-repeat: repeat-x; background-color: green; position: absolute; height: 10px; left: 0; bottom: 0; } li{ font-size:12px; line-heiwww.cppcns.comght:50px; position:relative; height:50px; list-style:none; } </style> </head> <body> <ul style='width:100%;margin-top:15rem;'> <li> <div class = 'box'> <div class="scale" id="bar"> <div></div> <span id="btn"></span> </div> </div> <div class='boxDesc'> <span id="title">0</span> </div> </li> </ul> </body> <script> scale=function (btn,bar,title){ this.btn=document.getElementById(btn); this.bar=document.getElementById(bar); this.title=docum
程式設計
客棧
ent.getElementById(title); this.step=this.bar.getElementsByTagName("DIV")[0]; this.init(); }; scale.prototype={ init:function (){ var f=this,g=document,b=yIgEGczdUTwindow,m=Math; f.btn.onmousedown=function (e){ var x=(e||b.event).clientX; var l=this.offsetLeft; var max=f.bar.offsetWidth-this.offsetWidth; g.onmousemove=function (e){ var thisX=(e||b.event).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.onmouseup=new Function('this.nmusemve=null'); }; },ondrag:function (pos,x){ this.step.style.width=Math.max(0,x)+'px'; this.title.innerHTML=pos+'%'; } } new scale('btn','bar','title'); </script> </html>

二.實現效果

JavaScript實現可拖拽的進度條

以上就是本文的全部內容,希望對大家的學習有所幫助,也希望大家多多支援我們。