问题
I cannot quite get the scroll spy to work properly with a vertical nav. Below you can find the code I use. For some reason, only "Two" gets active.
Anyone has an idea as of what is wrong?
<html lang="en">
<head>
<meta charset="utf-8">
<title>Twitter Bootstrap Scroll Spy Playground</title>
<link href="bootstrap/css/bootstrap.css" rel="stylesheet">
</head>
<body>
<div class="container">
<div class="row">
<div class="span3">
<ul class="navbar nav nav-list affix">
<li class="active"><a href="#one">One</a></li>
<li><a href="#two">Two</a></li>
</ul>
</div>
<div class="span1" data-spy="scroll">
<section id="one">
<h1>One</h1>
<h2>Ad leggings keytar, brunch id art party dolor labore. Pitchfork yr enim lo-fi before they sold out qui. Tumblr farm-to-table bicycle rights whatever. </h2>
</section>
<section id="two">
<h1>Two</h1>
<h2>Anim keffiyeh carles cardigan. Velit seitan mcsweeney's photo booth 3 wolf moon irure. Nihil tattooed accusamus, cred irony biodiesel keffiyeh artisan ullamco consequat.</h2>
</section>
</div>
</div>
</div>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script src="bootstrap/js/bootstrap.js"></script>
</body>
</html>
回答1:
In sorting this out for myself, I've found that the element being spied upon needs to have a scroll bar.
Take a look at this Fiddle: http://jsfiddle.net/adamp/qgU6h/1/
You can either spy directly on the body element ($('body').scrollspy()) or give your content an explicit height and force it to show a scrollbar.
(If you look at the Bootstrap documentation example, it does the fixed-height trick.)
回答2:
you can do this like http://jsfiddle.net/mCxqY/
<body data-spy="scroll" data-target="#navbar">
<div id="post1" class="box">
<h1>Post 1</h1>
<p> Scroll Down↓</p>
</div>
<div id="post2" class="box"><h1>Post 2</h1></div>
<div id="post3" class="box"><h1>Post 3</h1></div>
<div id="navbar">
<ul class="nav">
<li><a href="#post1">Post 1</a></li>
<li><a href="#post2">Post 2</a></li>
<li><a href="#post3">Post 3</a></li>
</ul>
</div>
<script src="http://twitter.github.com/bootstrap/assets/js/bootstrap-scrollspy.js"></script>
</body>
css
@import url(http://twitter.github.com/bootstrap/assets/css/bootstrap.css);
.box{
margin: 20px; padding: 15px;
background: #eee;
height: 500px;
}
#navbar{
position: fixed;
bottom: 0; left: 20px;
width: 100%;
background: #fff;
}
.nav li a{
float: left;
width: 80px;
padding: 15px 0;
}
.nav li a:hover{
color: #f33 !important;
background: none;
}
.nav li.active a{
color: #f55;
text-decoration: underline;
}
回答3:
Thanks Jerreck I was able to make mine works with the help of
height: 100%;
in the body selector of my CSS
Also as recommended by the guys at Bootstrap http://getbootstrap.com/javascript/#scrollspy
I've added position: relative; in the body too.
The beginning of the body selector in my CSS goes like this:
body {
position: relative;
height: 100%;
/* … */
}
In the <body> in HTML I had to remove
data-offset="0"
so it is now like this
<body data-spy="scroll" data-target="#navigation">
回答4:
I had to do two things to get scrollspy to work for me.
First, I had to give a height to the <body> element:
<style>
.body
{
height: 100%;
}
</style>
<body data-spy="scroll" data-target="#scrollElement" data-offset="0">
I think this is because scroll-spy is trying to get the height of the element that you're spying on, but if there isn't a height specified for your element, it gets passed a null (or 0?) value, which seems to be breaking the script's calculations.
Second, I had to make sure that there was enough vertical space between my id elements (that the nav anchors are pointing towards).
I couldn't figure out the exact amount of space necessary (it did vary depending on the data-offset attribute, so it probably has something to do with that), but I reckon that if you have a height set to your spy element and scrollspy still isn't working - just add more content between your id elements.
回答5:
$(window).scroll(function() {
if ($(".navbar").offset().top > 50) {
$(".navbar-fixed-top").addClass("top-nav-collapse");
} else {
$(".navbar-fixed-top").removeClass("top-nav-collapse");
}
});
//jQuery for page scrolling feature - requires jQuery Easing plugin
$(function() {
$('a.page-scroll').bind('click', function(event) {
var $anchor = $(this);
$('html, body').stop().animate({
scrollTop: $($anchor.attr('href')).offset().top
}, 1500, 'easeInOutExpo');
event.preventDefault();
});
});
回答6:
I did it like this. for data target I use the class name .navbar
<body data-spy="scroll" data-target=".navbar" data-offset="50">
<nav class="navbar navbar-default navbar-fixed-top" >
回答7:
.nameClasse {
position: relative;
overflow: auto;
height: 330px;
}
<div data-spy="scroll" data-target="#navbarVertical" data-offset="0" class="nameClass">
回答8:
After hours of frustration and research, I came to find that many people are also not pleased with Bootstrap Affix's documentation (www.mtjhax.wordpress.com). After all the looking around though, this solution on Bootply worked for me: http://bootply.com/63937
Say your navigation had the id "navbar", the body should look like this:
<body data-spy="scroll" data-target="#navbar">
...
</body>
And the navbar itself should be as follows:
<div class="navbar" id="navbar">
<ul class="nav navbar-nav">
<li>...</li>
<li>...</li>
<li>...</li>
</ul>
</div>
You then initialized the plugin...
$('#nav').affix({
offset: {top: 0}
});
... and give the navigation proper styling:
#nav.affix {
position: fixed;
top: 0;
width: 100%
}
来源：https://stackoverflow.com/questions/13134013/how-to-use-bootstrap-scroll-spy