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下拉刷新

2015-08-11 09:25 357 查看
JS版

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>下拉刷新</title>
<style>
body{
margin:0px auto;
padding:0px;
}
*{
margin:0px auto;
padding:0px;
}
#mainContent{
margin-top:20px;
width:200px;
height:300px;
border:1px solid #ccc;
overflow:scroll;
}
.mycontent{

width:100%;
height:100%;

}

#slideDown1{
width:100%;
height:20px;
background:#3CF;
}
#slideDown1 p{
text-align:center;
font-size:14px;

}

li{

list-style-type:none;
text-align:center;
}
</style>
</head>

<body>
<div id="mainContent">

<div class="myContent">

<ul>

<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
<li>item1-item-1-itemt1</li>
</ul>
</div>
<div id="slideDown1" style="display:none">

<p>加载中，请稍后....</p>
</div>
</div>
<script>

var obj=document.getElementById("mainContent");
function frush(obj){
var newobj=document.createElement("div");
var ul=document.createElement("ul");
for(var i=0;i<16;i++){
var li=document.createElement("li");
li.innerHTML="scroll1--scrolll2--scroll3";
ul.appendChild(li);
}

newobj.appendChild(ul);
var sd=document.getElementById("slideDown1");
obj.insertBefore(newobj,sd);
}
obj.onscroll=function(){
var scrollT=obj.scrollTop;
var scrollH=obj.scrollHeight;
var clientH=obj.clientHeight;

if(scrollT==scrollH-clientH){
//alert("到达最底部了");
var sd=document.getElementById("slideDown1");
sd.style.display="block";
window.setTimeout("frush(obj)",1000);
}
}
</script>
</body>
</html>

JQuery版

<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<script src="jquery-1.9.1.js"></script>
<script>
$(function(){
$("#showInfo").scroll(function(){
if($(this).height()+$(this).scrollTop()==$("#innerInfo").outerHeight(true)){
var str="<p>你好"+new Date()+"</p>"+"<p>你好"+new Date()+"</p>"+"<p>你好"+new Date()+"</p>"+"<p>你好"+new Date()+"</p>"+"<p>你好"+new
Date()+"</p>";
$("#innerInfo").html( $("#innerInfo").html()+str );
}
});
});
</script>

<style>
*{
padding:0px;
margin:0px auto;
}

#showInfo{
width:200px;
height:200px;
overflow-y:scroll;
border:1px solid #F93;
}
</style>
</head>

<body>
<div id="showInfo">

<div id="innerInfo">
<p>你好，中国。</p>
<p>你好，中国。</p>
<p>你好，中国。</p>
<p>你好，中国。</p>
<p>你好，中国。</p>
<p>你好，中国。</p>
<p>你好，中国。</p>
<p>你好，中国。</p>
<p>你好，中国。</p>
<p>你好，中国。</p>
<p>你好，中国。</p>
<p>你好，中国。</p>
</div>
</div>
</body>
</html>

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