手写简单瀑布流

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<!DOCTYPE html>
<html>
	<head>
		<meta charset='UTF-8'>
		<title></title>
		<style type='text/css'>
			* {
				margin: 0;
				padding: 0;
			}
			
			img {
				width: 180px;
			}
			
			.container {
				margin: 0 auto;
				position: relative;
				background: #f8f8f8;
				padding: 10px;
			}
			
			.box {
				position: absolute;
			}
			
			.box>div {
				float: left;
				padding: 10px;
				border: 1px solid #ccc;
				box-shadow: 2px 2px 3px 0 #ccc;
				border-radius: 10px;
				margin: 10px;
			}
		</style>
	</head>

	<body>
		<div class='container' id='container'></div>
	</body>
	<script src='http://libs.baidu.com/jquery/2.0.0/jquery.min.js'></script>
	<script type='text/javascript'>
		var imgs = [
			 'http://temp.im/180x100/f00',
			 'http://temp.im/180x200/ff0',
			 'http://temp.im/180x300/f0f',
			 'http://temp.im/180x400/00f',
			 'http://temp.im/180x200/0ff',
			 'http://temp.im/180x300/0f0',
			 'http://temp.im/180x100/f66',
			 'http://temp.im/180x600/66f',
			 'http://temp.im/180x200/636',
			 'http://temp.im/180x300/ef3', 
			 'http://temp.im/180x100/f00',
			 'http://temp.im/180x200/ff0',
			 'http://temp.im/180x300/f0f',
			 'http://temp.im/180x400/00f',
			 'http://temp.im/180x200/0ff',
			 'http://temp.im/180x300/0f0',
			 'http://temp.im/180x100/f66',
			 'http://temp.im/180x600/66f',
			 'http://temp.im/180x200/636',
			 'http://temp.im/180x300/ef3', 
			 'http://temp.im/180x100/f00',
			 'http://temp.im/180x200/ff0',
			 'http://temp.im/180x300/f0f',
			 'http://temp.im/180x400/00f',
			 'http://temp.im/180x200/0ff',
			 'http://temp.im/180x300/0f0',
			 'http://temp.im/180x100/f66',
			 'http://temp.im/180x600/66f',
			 'http://temp.im/180x200/636',
			 'http://temp.im/180x300/ef3'
			 ];
		var $con = $('#container');
		var lefts = []; //保存每组的left
		var tops = []; //保存高度
		var imgID = 0; //图片id
		var cols; //组数
		var timer;

		$.each(imgs, function() {
			var $img = $('<div class='box'><div><img src='' + this + '' /></div></div>')
			$img.appendTo($con);
			setTimeout(function() {
				waterFall(222)
			}, 200)
		});

		$(window).resize(function() {
			setTimeout(function() {
				waterFall(222)
			}, 200)
		})

		function waterFall(imgWidth) {
			lefts = [];
			tops = [];
			var viewWidth = document.documentElement.clientWidth || window.innerWidth
			cols = Math.floor(viewWidth / imgWidth);
			$con.width(cols * imgWidth)
			for(var i = 0; i < cols; i++) {
				lefts.push(imgWidth * i);
				tops.push(0);
			};
			//console.log(lefts)

			$('.box').each(function() {
				//console.log(getTop($(this).outerHeight()))
				var pos = getPos($(this).outerHeight());
				$con.height(Math.max.apply(null, tops));
				$con.height();
				$(this).css({
					left: pos.left,
					top: pos.top
				})
			})
		}

		function getPos(height) {
			var pos = {};

			var minTop = Math.min.apply(null, tops);
			var minIndex = getIndex(minTop);
			tops[minIndex] = minTop + height;
			//console.log(minTop,tops)
			pos.top = minTop;

			pos.left = lefts[minIndex];
			//console.log(pos)
			return pos;
		}

		//获取tops最小下标
		function getIndex(m) {
			for(var i in tops) {
				if(tops[i] == m) {
					//console.log(i)
					return i
				}
			}
		}
	</script>

</html>