就像在Pinterest应用程序中一样,当我向下/向上滚动时,我希望我的顶部导航栏向上/向下滑动同时我的底部工具栏向下滑动/向上滑动。
现在,我已设法使用下面的代码向上/向下滚动时隐藏和显示我的顶部导航栏。我正在试图弄清楚如何与我的底部工具栏同时做相反的事情,但我无法让它工作!
我对此很新,所以任何建议都会非常感激!
jquery的:
$(document).ready(function(){
var previousScroll = 0,
headerOrgOffset = $('#header').height();
$('#header-wrap').height($('#header').height());
$(window).scroll(function () {
var currentScroll = $(this).scrollTop();
if (currentScroll > headerOrgOffset) {
if (currentScroll > previousScroll) {
$('#header-wrap').slideUp();
} else {
$('#header-wrap').slideDown();
}
}
previousScroll = currentScroll;
}); });
答案 0 :(得分:1)
基于您在jsfiddle中提供的结构:
- HTML
<div id="header-wrap">
<div id="header" class="clear">
<nav><h1>Header</h1>another line<br/>another line
</nav>
</div>
</div>
<div id="footer-wrap">
<div id="footer" class="clear">
<nav><h1>Footer</h1>another line<br/>another line
</nav>
</div>
</div>
- CSS:
body {
height: 1000px;
}
#header, #footer {
width: 100%;
height: 120px;
/*position: absolute;*/
background-color: #e0e0e0;
}
#header {
top: -20px;
position: relative;
}
#header-wrap, #footer-wrap {
width: 100%;
position: fixed;
padding: 0px;
/*background-color: #e0e0e0;*/
}
#header-wrap {
top: 0px;
}
#footer-wrap {
bottom: 0px;
}
- JS
$(function() {
var previousScroll = 0,
headerOrgOffset = $('#header').height();
//$('#header-wrap').height($('#header').height());
$(window).scroll(function () {
var currentScroll = $(this).scrollTop();
if (currentScroll > headerOrgOffset) {
if (currentScroll > previousScroll) {
$('#header').slideUp("slow");
$('#footer').slideDown("slow");
} else {
$('#header').slideDown("slow");
$('#footer').slideUp("slow");
}
}
previousScroll = currentScroll;
});
});