标签：style blog class c code java
瀑布流加载显示数据，在当下已经用的很普遍，尤其是我们在做网上商城时，在产品列表页面已经被普遍使用。
对于实现瀑布流布局的解决方案主要有以下两种方式：
1、对每一条显示数据使用绝对定位+浮动的方式，这样也会有一个问题----必须要知道每一条信息的具体高宽度
2、采用列布局，将每一条数据依次放置到每一列
其实两者的实现原理都是大同小异，现在我将针对第二种解决方案，用一个具体的事例来说明
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><head> <title></title> <style type="text/css"> body,ul,li{margin:0;margin:0;} ul{list-style:none;} .clearfix:after{visibility:hidden;display:block;font-size:0;content:" ";clear:both; height:0;}.clearfix{*zoom:1} /*瀑布流*/ /*.wallList{width:860px;}*/ .wallList li{float:left;display:inline;margin-right:16px;} .wallList li a{background:#eee;border:1px solid #ccc;padding:5px 5px 0 5px;display:block;margin-bottom:10px;} .wallList li a:hover{border-color:#f60;} .wallList li .name{display:block;text-align:center;padding:8px 0;} .loadTips{text-align:center;padding:15px 0;} </style></head><body> <div class="wallList"
id="wallList"> <ul class="clearfix"> <li></li> <li></li> <li></li> <li></li> <li></li> </ul> <p class="loadTips"
id="loadTips"> 19880902 <span>正在加载......</span></p> </div></body></html><script src="jquery-1.7.1.js"
type="text/javascript"></script><script type="text/javascript"> // 数据格式 var
testJson = { "status": 1, "data": [ { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x300/B5E61D/fff", "width": 240, "height": 300, "name": "图片1"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x210/333/fff", "width": 240, "height": 210, "name": "图片2"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x190/f60/fff", "width": 240, "height": 190, "name": "图片3"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x230/B5E61D/fff", "width": 240, "height": 230, "name": "图片4"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x280/B5E61D/fff", "width": 240, "height": 280, "name": "图片5"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x260/eee/fff", "width": 240, "height": 260, "name": "图片6"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x180/000/fff", "width": 240, "height": 180, "name": "图片7"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x240/B5E61D/fff", "width": 240, "height": 240, "name": "图片8"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x265/B5E61D/fff", "width": 240, "height": 265, "name": "图片9"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x245/259/fff", "width": 240, "height": 245, "name": "图片10"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x310/B5E61D/fff", "width": 240, "height": 310, "name": "图片11"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x210/B5E61D/fff", "width": 240, "height": 210, "name": "图片12"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x150/B5E61D/fff", "width": 240, "height": 150, "name": "图片13"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x165/B5E61D/fff", "width": 240, "height": 165, "name": "图片14"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x100/B5E61D/fff", "width": 240, "height": 100, "name": "图片15"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x280/B5E61D/fff", "width": 240, "height": 280, "name": "图片16"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x225/B5E61D/fff", "width": 240, "height": 225, "name": "图片17"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x210/B5E61D/fff", "width": 240, "height": 210, "name": "图片18"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x230/B5E61D/fff", "width": 240, "height": 230, "name": "图片19"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x210/B5E61D/fff", "width": 240, "height": 210, "name": "图片20"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x300/B5E61D/fff", "width": 240, "height": 300, "name": "图片21"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x210/333/fff", "width": 240, "height": 210, "name": "图片22"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x190/f60/fff", "width": 240, "height": 190, "name": "图片23"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x230/B5E61D/fff", "width": 240, "height": 230, "name": "图片24"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x280/B5E61D/fff", "width": 240, "height": 280, "name": "图片25"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x210/eee/fff", "width": 240, "height": 210, "name": "图片26"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x180/000/fff", "width": 240, "height": 180, "name": "图片27"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x240/B5E61D/fff", "width": 240, "height": 240, "name": "图片28"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x195/B5E61D/fff", "width": 240, "height": 195, "name": "图片29"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x210/B5E61D/fff", "width": 240, "height": 210, "name": "图片30"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x300/B5E61D/fff", "width": 240, "height": 300, "name": "图片31"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x210/333/fff", "width": 240, "height": 210, "name": "图片32"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x190/f60/fff", "width": 240, "height": 190, "name": "图片33"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x230/B5E61D/fff", "width": 240, "height": 230, "name": "图片34"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x280/B5E61D/fff", "width": 240, "height": 280, "name": "图片35"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x210/eee/fff", "width": 240, "height": 210, "name": "图片36"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x180/000/fff", "width": 240, "height": 180, "name": "图片37"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x240/B5E61D/fff", "width": 240, "height": 240, "name": "图片38"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x195/B5E61D/fff", "width": 240, "height": 195, "name": "图片39"
}, { "href": "http:xxxxxxx", "src": "http://dummyimage.com/240x245/259/fff", "width": 240, "height": 245, "name": "图片40"
} ] } var
wallPic = function () { var
$target = $(‘#wallList‘), $li = $target.find(‘li‘), $tips = $(‘#loadTips‘), oTop = 0, //滚动判断的值 row = 5, //列数 page = 1, //ajax请求的页码值 url = ‘xxxx‘, //ajax请求地址 on_off = true; //插入结构的开关，防止ajax错误性多次加载数据 return
{ fillData: function (callback) { var
_that = this; on_off = false; /* ajax --------------------*/ // $.get(url,{ page:page,count:30 },function(json){ // if(json.status==1){ // _that.appendHTML(json.data); // on_off = true; // page++; // }else{ // _that.loadedTips(); // } // },‘json‘); /* 模拟测试-设置定时器模拟ajax请求数据 -----------------------*/ setTimeout(function () { // 模拟终止 if
(page == 5) { _that.loadedTips(); return; } _that.appendHTML(testJson.data); on_off = true; page++; }, 400); }, appendHTML: function (data) { var
len = data.length, n = 0; for
(; n < len; n++) { /*每次都将数据加载到高度最小的LI中---最终实现所有li高度都大致相当*/ var
minHeight = Math.min.apply(null, [$li.eq(0).height(), $li.eq(1).height(), $li.eq(2).height(), $li.eq(3).height(), $li.eq(4).height()]); for
(var
j = 0; j < 5; j++) { if
(minHeight == $li.eq(j).height()) { $li[j].innerHTML += ‘<a href="‘
+ data[n].href + ‘" target="_blank"><img src="‘
+ data[n].src + ‘" width="‘
+ data[n].width + ‘" height="‘
+ data[n].height + ‘" alt="‘
+ data[n].name + ‘" /><span class="name">‘
+ page * n + data[n].name + ‘</span></a>‘; break; } } /*依次均与的将数据分布到每一列中---将会出现有的li高度会很大 var k = 0; n > (row - 1) ? k = n % row : k = n; $li[k].innerHTML += ‘<a href="‘ + data[n].href + ‘" target="_blank"><img src="‘ + data[n].src + ‘" width="‘ + data[n].width + ‘" height="‘ + data[n].height + ‘" alt="‘ + data[n].name + ‘" /><span class="name">‘ + data[n].name + ‘</span></a>‘; */ } this.getOTop(); }, getOTop: function () { oTop = Math.min.apply(null, [$li.eq(0).height(), $li.eq(1).height(), $li.eq(2).height()]) + $target.offset().top; }, loadedTips: function () { //数据加载完毕 $(‘#loadTips‘).find(‘span‘).text(‘数据已加载完‘); setTimeout(function () { $(‘#loadTips‘).css({ ‘visibility‘: ‘hidden‘
}); }, 200); // 解绑事件 $(window).unbind(‘scroll‘, $.proxy(this.scrollEvent, this)); }, scrollEvent: function () {//鼠标滚轮事件 if
($(document).scrollTop() + $(window).height() > oTop && on_off) { this.fillData(); } }, init: function () {//开始执行事件 this.fillData(); $(window).bind(‘scroll‘, $.proxy(this.scrollEvent, this)); } } } (); wallPic.init();</script> |
瀑布流AJAX无刷新加载数据列表--当页面滚动到Id时再继续加载数据,布布扣,bubuko.com
瀑布流AJAX无刷新加载数据列表--当页面滚动到Id时再继续加载数据
标签：style blog class c code java
原文地址：http://www.cnblogs.com/xiaoXuZhi/p/3739353.html
