代码很简单，没有注释
<style type="text/css">
*{
margin:0px;
padding:0px;
}
#container{
position:relative;
}
.box{
padding:5px;
float:left;
}
.box_img{
padding:5px;
border:1px solid #CCC;
box-shadow:0 0 5px #CCC;
border-radius:5px;
}
.box_img img{
width:150px;
height:auto;
}
</style>
</head>
<body>
<div id="container">
<div class="box">
<div class="box_img">
<img alt="" src="img/1.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/2.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/3.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/4.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/5.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/1.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/2.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/3.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/4.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/5.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/1.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/2.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/3.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/4.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/5.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/1.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/2.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/3.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/4.jpg">
</div>
</div>
<div class="box">
<div class="box_img">
<img alt="" src="img/5.jpg">
</div>
</div>
</div>
<script type="text/javascript">
window.onload = function(){
imgLocation("container","box");
var imgData={"data":[{"src":"2.jpg"},{"src":"3.jpg"},{"src":"4.jpg"},{"src":"5.jpg"},{"src":"1.jpg"},{"src":"2.jpg"}]};
window.onscroll = function(){
if(checkFlag()){
var cparent = document.getElementById("container");
for(var i =0;i<imgData.data.length;i++){
var ccontent =document.createElement("div");
ccontent.className = "box";
cparent.appendChild(ccontent);
var boximg = document.createElement("div");
boximg.className = "box_img";
ccontent.appendChild(boximg);
var img = document.createElement("img");
img.src = "img/"+imgData.data[i].src;
boximg.appendChild(img);
}
imgLocation("container","box");
}
};
};
function checkFlag(){
var cparent = document.getElementById("container");
var ccontent = getChildElement(cparent, "box");
var lastContentHeight = ccontent[ccontent.length-1].offsetTop;
var scrollTop = document.documentElement.scrollTop||document.body.scrollTop;
var pageHeight = document.documentElement.clientHeight||document.body.clientHeight;
if(lastContentHeight <scrollTop+pageHeight){
return true;
}
}
function imgLocation(parent,content){
//将parent下所有的content全部取出
var cparent = document.getElementById(parent);
var ccontent = getChildElement(cparent,content);
var imgWidth = ccontent[0].offsetWidth;
var num = Math.floor(document.documentElement.clientWidth/imgWidth);
cparent.style.cssText = "width:"+imgWidth*num+"px;margin:0 auto";
var boxHeightArr = [];
for(var i=0;i<ccontent.length;i++){
if(i<num){
boxHeightArr[i] = ccontent[i].offsetHeight;
}else{
var minHeight = Math.min.apply(null,boxHeightArr);
var minIndex = getMinHeightLocation(boxHeightArr,minHeight);
ccontent[i].style.position = "absolute";
ccontent[i].style.top = minHeight+"px";
ccontent[i].style.left = ccontent[minIndex].offsetLeft+"px";
boxHeightArr[minIndex] = boxHeightArr[minIndex]+ccontent[i].offsetHeight;
}
}
}
function getMinHeightLocation(boxHeightArr,minHeight){
for(var i in boxHeightArr){
if(boxHeightArr[i] == minHeight){
return i;
}
}
}
function getChildElement(parent,content){
var contentArr = [];
var allContent = parent.getElementsByTagName("*");
for(var i=0;i<allContent.length;i++){
if(allContent[i].className == content){
contentArr.push(allContent[i]);
}
}
return contentArr;
}
</script>
</body>
时间： 2024-11-06 07:29:57