瀑布流，又称瀑布流式布局。是比较流行的一种网站页面布局，视觉表现为参差不齐的多栏布局，随着页面滚动条向下滚动，这种布局还会不断加载数据块并附加至当前尾部。最早采用此布局的网站是Pinterest，逐渐在国内流行开来。国内大多数清新站基本为这类风格。
waterwall.js
$(function(){
WaterWall("main","box");
Add_WaterWall_ScrollEvent("main","box");
})
function WaterWall(Id_name,Class_name)
{
var Box_Array = $("#"+ Id_name + ">." + Class_name); //获取所有的Box对象数组
]).innerWidth(); //获取Box的宽度.一定要包含Padding的数值
var Cols = Math.floor($(document).width() / Box_Width);
$("#"+ Id_name ).css({"width":Cols * Box_Width,"margin":"auto"}); //设置Main的宽度并且居中
var Height_Array = [] ;//存放每个列的的高度的数组
;i<Box_Array.length;i++)
{
if(i<Cols) //将第一行作为列高度的初始值添加到数组中
{
Height_Array.push($(Box_Array[i]).innerHeight());
}
else
{
var min = Math.min.apply(null,Height_Array); //获取列高度数组中最小值
var min_index = get_index(Height_Array,min); //获取指定数组中的最小值的索引
$(Box_Array[i]).css({"position":"absolute","top":min,"left":Box_Width * min_index + "px"});
Height_Array[min_index] += $(Box_Array[i]).innerHeight();
}
}
}
//获取指定数组中的最小值的索引
function get_index(arr,val)
{
for(var i in arr)
{
if(arr[i] == val)
{
return i; //获取列高度数组中最小值的索引
}
}
}
function Add_WaterWall_ScrollEvent(Id_name,Class_name)
{
//绑定一个滚动事件
$(window).scroll(function()
{
var Box_Array = $("#"+ Id_name + ">." + Class_name); //获取所有的Box对象数组
//最后一个box距离顶部的距离 + 图片的一半高度
).offset().top + $(Box_Array).eq(Box_Array.length - ).innerHeight() / ) ;
var scrolltop = $("body,html").scrollTop(); //浏览器拖动的距离
var see_height = document.body.clientHeight || document.documentElement.clientHeight; //浏览器可视距离
if(lastbox_height < Math.floor(scrolltop +see_height))
{
var temp = _.template($("#temp").html()); //模板
var data = {
"img":[
{"src":"Images/P_00.jpg"},
{"src":"Images/P_01.jpg"},
{"src":"Images/P_02.jpg"},
{"src":"Images/P_03.jpg"},
{"src":"Images/P_04.jpg"},
{"src":"Images/P_05.jpg"},
{"src":"Images/P_06.jpg"},
{"src":"Images/P_07.jpg"},
{"src":"Images/P_08.jpg"}
],
"text":[
{"title":"Images/P_00.jpg"},
{"title":"Images/P_01.jpg"},
{"title":"Images/P_02.jpg"},
{"title":"Images/P_03.jpg"},
{"title":"Images/P_04.jpg"},
{"title":"Images/P_05.jpg"},
{"title":"Images/P_06.jpg"},
{"title":"Images/P_07.jpg"},
{"title":"Images/P_08.jpg"}
]
}; //模拟后台JSON数据
;i<data.img.length;i++)
{
$("#"+ Id_name).append
(
temp({
src : data.img[i].src
})
)
}
WaterWall(Id_name,Class_name);
}
})
}
html:
<!DOCTYPE HTML>
<html lang="en-US">
<head>
<meta charset="UTF-8">
<title></title>
<link rel="stylesheet" href="Css/Basic.css" />
<script type="text/javascript" src="Js/jquery-2.1.1.min.js"></script>
<script type="text/javascript" src="Js/underscore-min.js"></script>
<script type="text/javascript" src="Js/waterwall.js"></script>
<style type="text/css">
#main
{
position:relative;
}
.box
{
float:left;
padding:15px 0px 0px 15px; /* 只需要上，左两个方向的间隔即可 */
}
.pic
{
border:1px solid #ccc;
padding:10px;
border-radius:15px;
box-shadow:0px 0px 15px #ccc;
}
.pic>img
{
width:165px;
height:auto;
}
</style>
</head>
<body>
<div id="main">
<div class="box">
<div class="pic">
<img src="Images/P_00.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_01.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_02.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_03.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_04.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_05.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_06.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_07.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_08.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_09.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_010.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_011.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_012.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_013.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_014.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_015.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_016.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_017.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_018.jpg" alt="" />
</div>
</div>
<div class="box">
<div class="pic">
<img src="Images/P_019.jpg" alt="" />
</div>
</div>
</div>
</body>
</html>
http://www.imooc.com/learn/101