<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>仿百度图片瀑布流</title>
<link rel="stylesheet" type="text/css" href="style.css" target="_blank" rel="external nofollow" >
<script src="http://yygame.duowan.com/Web/Public/Jcode/js/jquery.min.js"></script>
<style>
*{margin:0; padding:0;}
#container{width: 1000px; border:1px solid #f00; margin: 50px auto; position: relative; }
#container img{position: absolute;}
#loader{width: 100%; height: 60px; background: url(loader.gif) no-repeat center; position: fixed; bottom: 0; left: 0;}
</style>
</head>
<script type="text/javascript">
$(function(){
var oContainer=$('#container');
var oLoader=$('#loader');
var iWidth=200;//列宽
var iSpace=10;//列数
var iOuterWidth=iWidth+iSpace;
var sUrl = 'http://www.wookmark.com/api/json/popular?callback=?';
var iCell=0;
var iPage=0;
var arrL=[];
var arrT=[];
var iBtn=true;
function setCells(){
iCell= Math.floor($(window).innerWidth()/iOuterWidth);
if(iCell < 3){
iCell =3;
}
if(iCell >6){
iCell =6;
}
oContainer.css('width',iOuterWidth*iCell-iSpace);
}
setCells();
for(var i=0;i < iCell; i++){
arrL.push(i*iOuterWidth);
arrT.push(0);
}
//console.log(arrL)
getData()
function getData(){
if(iBtn){
iBtn =false
oLoader.show();
$.getJSON(sUrl,'page='+iPage,function(data){
$.each(data,function(i,obj){
var $img =$('<img>');
$img.attr('src',obj.preview);
var iHeight= iWidth /obj.width * obj.height;
var index=getMin();
$img.appendTo(oContainer);
$img.css({width:iWidth,height: iHeight});
$img.css({top:arrT[index],left: arrL[index]})
arrT[index]+=iHeight +10;
oLoader.hide();
})
iPage++;
iBtn=true;
})
}
}
$(window).on('resize',function(){
var iOldCell= iCell;
setCells();
var iH = $(window).scrollTop()+$(window).innerHeight();
var iMinIndex= getMin();
if(arrT[iMinIndex]+oContainer.offset().top < iH){
getData();
}
if(iOldCell == iCell) return ;
arrT=[];
arrL=[];
for(var i=0;i < iCell; i++){
arrL.push(i*iOuterWidth);
arrT.push(0);
}
var $img = oContainer.find('img');
$img.each(function(index,obj){
var index=getMin();
$(this).animate({top:arrT[index],left: arrL[index]})
arrT[index]+=$(this).height() +10;
})
})
$(window).on('scroll',function(){
var iH = $(window).scrollTop()+$(window).innerHeight();
var iMinIndex= getMin();
if(arrT[iMinIndex]+oContainer.offset().top < iH){
getData();
}
})
function getMin(){
var iv= arrT[0];
var _index=0;
for(var i=0; i<arrT.length; i++){
if(arrT[i] < iv){
iv= arrT[i];
_index=i;
}
}
return _index ;
}
})
</script>
<body>
<div id="top">仿百度图片瀑布流</div>
<!--标题 e -->
<div id="container"></div>
<div id="loader"></div>
<!--效果块 e -->
</body>
</html>