JS模拟的腾讯微博app撕纸效果的实例代码_javascript技巧

<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>腾讯微博app撕纸效果</title> <style type="text/css"> body{margin:0;padding:0;font-size:14px;line-height:22px;} .content,content_mack{width:300px;height:400px;overflow:hidden;font-size:12px;line-height:20px;background:#f2eee3;cursor:pointer;} .content_mack{position:absolute;top:0px;left:0;} .mack{position:absolute;width:300px;height:50px;overflow:hidden;top:0px;left:0px;background:#fff;} .bg_sizhi{position:absolute;width:300px;height:50px;overflow:hidden;background:url('http://files.jb51.net/file_images/article/201305/2013521101603617.gif');top:0px;left:0;line-height:50px;text-align:center;} </style> <div style="width:300px;height:400px;overflow:hidden;position: relative;float:left;"> <div class="content" id="content"> <div class="content">04-262.59MCerberus FTP Server 中文版 2.48FTP软件04-253.55MWeb Page Maker简易网页制作 v3.1网页制作04-25990KRemote Desktop Spy服务器监控、远程控制 v5.2服务器软件04-252.20Kx3389远程端口修改器 1.0服务器软件04-25210K远程桌面3389批量登录软件3.0远程控制04-25789KTable2CSS Table布局转Div+CSS 3.0！ 04-2314.1Mjre1.6下载 | jre 1.6 JAVA虚拟机环境包编程开发04-2393.9KVC++正则表达式测试器编程开发04-2331.6K解除右键限制、网页禁止复制功能的小软件站长工具04-231.49MDiagram Designer矢量图编辑器。</div> <div class="bg_sizhi" id="bg_sizhi">JS模拟的腾讯微博app撕纸效果</div> <div class="mack" id="mack"> <div class="content content_mack" id="content_mack">05-0114.3KC#自动更换IP地址网络相关05-0117.0KC#网络发送与接收统计程序网络相关05-0115.8K局域网IP扫描程序C#源码网络相关05-01411K前后平滑旋转的jQuery网页幻灯片代码焦点幻灯05-01300KVB RichTextBox控件使用方法指南 pdfVB教程05-01925KVB 函数速查手册 pdfVB教程05-01509KHTML5和CSS全面动画效果的焦点图特效焦点幻灯05-014.49K类似树形菜单的jquery多级展开下拉菜单菜单导航05-0136.0K仿Flash背景左右滑动的多彩网页菜单菜单导航04-3016.9MJava范例开发大全一书光盘源代码书籍源码04-30916KAndroid与Js交互源码实例 Android滑动菜单制作RenRenSlidingLayout代码Android源码04-30644KFlat UI HTML用户界面常用代码包Ajax/JavaScript04-3053.3KJavaScript仿百度百科词条统计动画效果Ajax/JavaScript04-30267Kjquery由外向内的收缩效果示例jQuery04-306.41KDelphi Mode属性用法举例控件组件04-306.03KStartPos属性-Delphi用法其它类别04-306.47KNotifyValue属性用法一例Delphi源代码其它类别04-30</div> </div> </div> </div> <script> function $(id){/* 获取id */ return typeof id === "string" ? document.getElementById(id) : id; } function getStyle(obj, attr){ return obj.currentStyle?obj.currentStyle[attr]:getComputedStyle(obj, false)[attr]; } function startMove(obj, json, fnEnd){ if(obj.timer){ clearInterval(obj.timer); } obj.timer=setInterval(function (){ doMove(obj, json, fnEnd); }, 10); var oDate=new Date(); if(oDate.getTime()-obj.lastMove>30){ doMove(obj, json, fnEnd); } } function doMove(obj, json, fnEnd){ var iCur=0; var attr=''; var bStop=true;//假设运动已经该停止了 for(attr in json){ iCur = attr=='opacity'?parseInt(100*parseFloat(getStyle(obj, 'opacity'))):parseInt(getStyle(obj, attr)); if(isNaN(iCur)){ iCur=0; } var iSpeed=(json[attr]-iCur)/8; iSpeed=iSpeed>0?Math.ceil(iSpeed):Math.floor(iSpeed); if(parseInt(json[attr])!=iCur){ bStop=false; } if(attr=='opacity'){ obj.style.filter="alpha(opacity:"+(iCur+iSpeed)+")"; obj.style.opacity=(iCur+iSpeed)/100; } else{ obj.style[attr]=iCur+iSpeed+'px'; } } if(bStop){ clearInterval(obj.timer); obj.timer=null; if(fnEnd){ fnEnd(); } } obj.lastMove=(new Date()).getTime(); } var flag = 0; $('content').onclick = function(ev){ var oEvent=ev||event; if(!flag){ var Y = oEvent.clientY-25; Y = Y<0?0:Y; Y = Y>350?350:Y; $('bg_sizhi').style.top = $('mack').style.top = Y+'px'; $('content_mack').style.top = -Y+'px'; startMove($('mack'),{'left':-300}); flag = 1; }else{ startMove($('mack'),{'left':0}); flag = 0; } } </script>
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