jquery模拟进度条实现方法

本文实例讲述了jquery模拟进度条实现方法。分享给大家供大家参考。具体如下：

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>js模拟进度条练习</title>
<script type='text/javascript' src="http://xiazai.jb51.net/201508/yuanma/jquery-1.8.0.min.js"></script>
<script type='text/javascript' src='http://xiazai.jb51.net/201508/yuanma/jquery.artDialog.js?skin=default'></script>
<style>
body{ font-size:12px}
.aui_nw, .aui_ne, .aui_sw, .aui_se { height: 1px; width: 1px; }
.aui_outer, .aui_inner { border: 0; }
.aui_state_lock .aui_border { box-shadow: 0 0 10px rgba(0, 0, 0, .8); }
</style>
</head>
<body>
<button id="starLoading">显示进度条</button>
<div id="msgHtml">http://www.jb51.net</div>
</body>
</html>
<script>
  (function(w){
    var _html='<div style="line-height: 30px;text-align: center;">正在为您载入数据，请稍后……</div><div id="jsLoadOuter" style="width:250px;height:8px;border:#6BAAC9 solid 1px; background:#C0EBFF; margin:0 auto;box-shadow: 0 0 3px #2E94BB;padding:1px"><div id="jsLoadInner" style="background:#54AEE0;height:100%;width:0"></div></div>';
    var __g;
    var _maxWidth=100;
    var _nowWidth=0;
    var _speed=30;
    var _step=2;
    var __time;
    progress={
      render:function(fn){
        fn&&fn(_html);
        _nowWidth=0;
        __g=document.getElementById('jsLoadInner');
        this.fx();
      },
      complete:function(fn){
        clearTimeout(__time);
        progress.completeFn=fn;
        this.setOver();
      },
      setOver:function(){
        var _stepa=_step*1.5;
        if(_nowWidth<_maxWidth){
          _nowWidth=_nowWidth-0+_stepa;
          parseInt(_nowWidth)>parseInt(_maxWidth)?_nowWidth=_maxWidth:'';
          __g.style.width=''+_nowWidth+'%';
          _speed=(_maxWidth-_nowWidth)/1000;
          __time=setTimeout('progress.setOver()',_speed) ;
        }else{
          clearTimeout(__time);
          progress.completeFn&&progress.completeFn();
        };
      },
      fx:function(){
        var _stepa=_step;
        if(_nowWidth<_maxWidth-5){
          _stepa=_nowWidth>_maxWidth*0.6?(_stepa*0.02):_stepa;
          _nowWidth=_nowWidth-0+_stepa;
          parseInt(_nowWidth)>parseInt(_maxWidth)?_nowWidth=_maxWidth:'';
          __g.style.width=''+_nowWidth+'%';
          __time=setTimeout('progress.fx()',_speed);
        }else{
          clearTimeout(__time);
        };
      }
    }
    w.progress=progress;
  })(window)
  //
  $(function(){
    showLoading();
    $('body')
    .on('click','#starLoading',function(){
      showLoading();
    })
  })
  function showLoading(){
    //开始显示进度条
    progress.render(function(html){
        art.dialog({id:"jsLoadingDialog",title:"\u6b63\u5728\u52a0\u8f7d\u4e2d\u2026\u2026",cancel:!1,lock:!0,background:"#fff",fixed:!0,content:html});
    });
    //请求完成后完成进度条，，，模拟10秒后请求完成
    setTimeout(function(){
      progress.complete(function(html){
        art.dialog.list['jsLoadingDialog']&&art.dialog.list['jsLoadingDialog'].close();
        $('#msgHtml').html('进度条已走完');
      });
    },10000);
  };
</script>

运行效果如下图所示：

希望本文所述对大家的jquery程序设计有所帮助。