快捷導(dǎo)航

基于jQuery的公告無限循環(huán)滾動(dòng)實(shí)現(xiàn)代碼

更新時(shí)間：2012年05月11日 16:52:38 作者：

今天看到一個(gè)網(wǎng)站的公告欄一個(gè)小效果，如果有2條公告或以上就有個(gè)滾動(dòng)效果，特整理下分享給大家

在線演示：http://demo.jb51.net/js/2012/callboard/
jQuery代碼

 
//第二版：Newton改造 
(function (win){ 
var callboarTimer; 
var callboard = $('#callboard'); 
var callboardUl = callboard.find('ul'); 
var callboardLi = callboard.find('li'); 
var liLen = callboard.find('li').length; 
var initHeight = callboardLi.first().outerHeight(true); 
win.autoAnimation = function (){ 
if (liLen <= 1) return; 
var self = arguments.callee; 
var callboardLiFirst = callboard.find('li').first(); 
callboardLiFirst.animate({ 
marginTop:-initHeight 
}, 500, function (){ 
clearTimeout(callboarTimer); 
callboardLiFirst.appendTo(callboardUl).css({marginTop:0}); 
callboarTimer = setTimeout(self, 5000); 
}); 
} 
callboard.mouseenter( 
function (){ 
clearTimeout(callboarTimer); 
}).mouseleave(function (){ 
callboarTimer = setTimeout(win.autoAnimation, 5000); 
}); 
}(window)); 
setTimeout(window.autoAnimation, 5000); 

HTML代碼：

復(fù)制代碼代碼如下:

 
<div id="callboard"> 
<ul> 
<li> 
<a >公告：前端組主題正在整理中..有需要用的朋友請(qǐng)留個(gè)言，以方便及時(shí)通知！</a> 
</li> 
<li> 
<span style="color:red;">公告：前端組上線一個(gè)月零八天，PR升為3，BD權(quán)重1</span> 
</li> 
</ul> 

CSS代碼：(可根據(jù)需求另設(shè))

復(fù)制代碼代碼如下:

 
#callboard { height:24px; line-height:24px; overflow:hidden;} 
#callboard ul { padding:0;} 
#callboard li { padding:0;} 

完整演示代碼：

復(fù)制代碼代碼如下:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<title>滾動(dòng)公告欄</title> 
<style type="text/css"> 
header, nav, aside, menu, figure, article, footer { display:block; } 
body, div, form, textarea, label, input, ul, ol, li, dl, dt, dd, p, span, a, img, h1, h2, h3, h4, h5, h6, tbody, tfoot, tr, th, td, pre, code, form, fieldset, legend, font { margin:0; padding:0; } 
table { border-collapse:collapse; border-spacing:0; } 
caption, th { text-align:left; } 
sup { vertical-align:text-top; } 
sub { vertical-align:text-bottom; } 
li { list-style:none; } 
fieldset, img { border:none; } 
input, textarea, select { font-family:inherit; font-size:inherit; font-weight:inherit; *font-size:100%; 
color:inherit; _color:#333; *color:#333; 
outline:none; } 
/*BASE CLASS*/ 
.cfix { *display:inline-block;*zoom:1} 
.cfix:after { content:"."; display:block; height:0; clear:both; visibility:hidden; } 
/*公告欄滾動(dòng)CSS*/ 
#callboard { width:600px; margin:100px auto 0; height:24px; line-height:24px; overflow:hidden; font-size:12px; background-color:#f5f5f5;} 
#callboard ul { padding:0; } 
#callboard li { padding:0; } 
</style> 
<script type="text/javascript" src="http://demo.jb51.net/jslib/jquery/jquery-1.7.2.min.js"></script> 
</head> 
<body> 
<div id="callboard"> 
<ul> 
<li> 
<span style="color:red;">公告[2]：前端組上線一個(gè)月零八天，PR升為3，BD權(quán)重1</span> 
</li> 
<li> 
<span style="color:red;">公告[3]：撤下了BloggerAds，原因?yàn)槭杖胩?，打開速度慢！</span> 
</li> 
<li style="margin-top: 0px;"> 
<a href="http://www.fzitv.net">公告[1]：前端組主題正在整理中..有需要用的朋友請(qǐng)留個(gè)言，以方便及時(shí)通知！</a> 
</li> 
</ul> 
</div> 
<!--公告板滾動(dòng)--> 
<script type="text/javascript"> 
(function (win){ 
var callboarTimer; 
var callboard = $('#callboard'); 
var callboardUl = callboard.find('ul'); 
var callboardLi = callboard.find('li'); 
var liLen = callboard.find('li').length; 
var initHeight = callboardLi.first().outerHeight(true); 
win.autoAnimation = function (){ 
if (liLen <= 1) return; 
var self = arguments.callee; 
var callboardLiFirst = callboard.find('li').first(); 
callboardLiFirst.animate({ 
marginTop:-initHeight 
}, 500, function (){ 
clearTimeout(callboarTimer); 
callboardLiFirst.appendTo(callboardUl).css({marginTop:0}); 
callboarTimer = setTimeout(self, 5000); 
}); 
} 
callboard.mouseenter( 
function (){ 
clearTimeout(callboarTimer); 
}).mouseleave(function (){ 
callboarTimer = setTimeout(win.autoAnimation, 5000); 
}); 
}(window)); 
setTimeout(window.autoAnimation, 5000); 
</script> 
</body> 
</html>