简体中文（ZH-CN）English（EN）繁体中文（ZH-TW）日本語（JA）한국어（KO）Melayu（MS）Français（FR）Deutsch（DE）
Home
Article
Q&A
Course
Topic
Download
Game
Dictionary
Recent Updates

Home  >  Article  >  Web Front-end  >  How to implement list scrolling in javascript_javascript skills

How to implement list scrolling in javascript_javascript skills

WBOY
WBOYOriginal
2016-05-16 15:48:021278browse

The example in this article describes how to implement list scrolling in JavaScript. Share it with everyone for your reference. The details are as follows:

index.html is as follows: 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 <meta name="keywords" content="" />
 <meta name="description" content="" />
 <link rel="stylesheet" type="text/css" href="css/global.css" />
 <script type="text/javascript" src="js/jquery-1.7.min.js"></script>
 <script type="text/javascript" src="js/scroll_img.js"></script>
 <title>图片列表滚动</title>
</head>
<body>
<div class="scroll_img_wrap clearfix">
 <p class="left_btn"><a href="javascript:void(0)"><img src="images/btn.jpg" /></a></p>
 <div id="scroll_img">
  <ul class="scroll_img_list clearfix">
   <li>
    <p><a href="#"><img src="images/1.jpg" alt="#" /></a></p>
    <p><a href="#">information1</a></p>
   </li>
   <li>
    <p><a href="#"><img src="images/1.jpg" alt="#" /></a></p>
    <p><a href="#">information2</a></p>
   </li>
   <li>
    <p><a href="#"><img src="images/1.jpg" alt="#" /></a></p>
    <p><a href="#">information3</a></p>
   </li>
   <li>
    <p><a href="#"><img src="images/1.jpg" alt="#" /></a></p>
    <p><a href="#">information4</a></p>
   </li>
   <li>
    <p><a href="#"><img src="images/2.jpg" alt="#" /></a></p>
    <p><a href="#">information5</a></p>
   </li>
   <li>
    <p><a href="#"><img src="images/2.jpg" alt="#" /></a></p>
    <p><a href="#">information6</a></p>
   </li>
   <li>
    <p><a href="#"><img src="images/2.jpg" alt="#" /></a></p>
    <p><a href="#">information7</a></p>
   </li>
   <li>
    <p><a href="#"><img src="images/2.jpg" alt="#" /></a></p>
    <p><a href="#">information8</a></p>
   </li>
   <li>
    <p><a href="#"><img src="images/1.jpg" alt="#" /></a></p>
    <p><a href="#">information9</a></p>
   </li>
   <li>
    <p><a href="#"><img src="images/1.jpg" alt="#" /></a></p>
    <p><a href="#">information10</a></p>
   </li>
   <li>
    <p><a href="#"><img src="images/1.jpg" alt="#" /></a></p>
    <p><a href="#">information11</a></p>
   </li>
   <li>
    <p><a href="#"><img src="images/1.jpg" alt="#" /></a></p>
    <p><a href="#">information12</a></p>
   </li>
   <li>
    <p><a href="#"><img src="images/1.jpg" alt="#" /></a></p>
    <p><a href="#">information13</a></p>
   </li>
   <li>
    <p><a href="#"><img src="images/1.jpg" alt="#" /></a></p>
    <p><a href="#">information14</a></p>
   </li>
  </ul>
 </div>
 <p class="right_btn"><a href="javascript:void(0)"><img src="images/btn.jpg" /></a></p>
</div>
</body>
<script type="text/javascript">
(function(){
 var test=new scroll_img('scroll_img',150,590,140,10);
 test.initialize();
 $('.left_btn').click(function(){
  test.stop();
  test.left();
  test.autoplay();
 });
 $('.right_btn').click(function(){
  test.stop();
  test.right();
  test.autoplay();
 });
})();
</script>
</html>

scroll_img.js is as follows: 

function scroll_img(target,distance,show_width,li_width,mr){
 this.distance=distance;  //每次移动距离
 this.target=$("#"+target);
 this.show_width=show_width; //显示区域宽度
 this.li_width=li_width;  //items宽度
 this.mr=mr;     //items间距
 this.scrollbar=$("#"+target).find('ul');
 this.position=0;
 this.direction=1;
}
scroll_img.prototype={
 version:1.00,
 author:"yangfeifei",
 date:2011-11-21,
 initialize:function(){
  var t=this;
  t.scrollbar.css('position','relative');
  //初始动作
  t.autoplay();
  t.scrollbar.mouseover(function(){t.stop();});  //鼠标移到图片上停止自动播放
  t.scrollbar.mouseout(function(){t.autoplay();}); //鼠标移出图片开始自动播放
 },
 right:function(){
  var t=this;
  (-t.position)<t.total_length()&#63;t.position-=t.distance:t.position=t.position;
  if((-t.position)<t.total_length()){
   t.scrollbar.animate({left:t.position},500);
   t.direction=1;
  }
  if((-t.position)==t.total_length()){
   t.scrollbar.animate({left:t.position},500);
   t.direction=-1;
  }
 },
 left:function(){
  var t=this;
  (-t.position)>0&#63;t.position+=t.distance:t.position=t.position;
  if((-t.position)>0){
   t.scrollbar.animate({left:t.position},500);
   t.direction=-1;
  }
  if((-t.position)==0){
   t.scrollbar.animate({left:t.position},500);
   t.direction=1;
  }
 },
 total_length:function(){
  var t=this,
  total_num=t.scrollbar.find('li').length;
  return total_num*(t.li_width+t.mr)-(t.mr+t.show_width);
 },
 autoplay:function(){
  var t=this;
  t.setInt=setInterval(function(){
   t.direction==1&#63;t.right():t.left();
  },3000);
 },
 stop:function(){
  var t=this;
  clearInterval(t.setInt);
 }
}

global.css is as follows: 

/*CSS reset*/
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,textarea,p,blockquote,th,td{margin:0;padding:0;font-family:arial,"宋体";}
table{border-collapse:collapse;border-spacing:0;}
fieldset,img{border:0;}
address,caption,cite,code,dfn,em,strong,th,var{font-style:normal;font-weight:bold;}
ol,ul{list-style-type:none;}
caption,th{text-align:left;}
h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal;}/*font-size:100%;的作用主要是改变它默认的大小，继承父体的字体大小*/
q:before,q:after{content:' ';}
abbr,acronym{border:0;}
.cb{clear:both;}
.cl{clear:left;}
.cr{clear:right;}
.clearfix:after{content:".";display:block;height:0;clear:both;visibility:hidden;}
.clearfix{display:inline-block;}
* html .clearfix{height:1%;}
.clearfix{display:block;}
/*主体css*/
.scroll_img_wrap{width:612px;margin: 10px auto;}
 #scroll_img{width:590px;overflow:hidden;float:left;*position:relative;border: 1px #ccc solid;}/*可视区域宽度*/
  .scroll_img_list{width:9999px;}
   .scroll_img_list li{float:left;width:140px;margin-right:10px;}/*items*/
   .scroll_img_list li p{text-align:center;}
   .scroll_img_list li p a{text-decoration:none;color:#666;}
 .left_btn,.right_btn{float:left;}

I hope this article will be helpful to everyone’s JavaScript programming design.

Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：JS special effects realize automatic playback and controllable effects of pictures_javascript skillsNext article：JS special effects realize automatic playback and controllable effects of pictures_javascript skills

Related articles

See more