How to use Bootstrap scroll spy?

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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 i

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8条回答

终归单人心

2020-12-08 03:29

$(window).scroll(function() {
    if ($(".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();
    });
});

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孤城傲影

2020-12-08 03:34

.nameClasse {
  position: relative;
  overflow: auto;
  height: 330px;
}

<div data-spy="scroll" data-target="#navbarVertical" data-offset="0" class="nameClass">

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梦如初夏

2020-12-08 03:35
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%
}
```
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迷失自我

2020-12-08 03:36
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.
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礼貌的吻别

2020-12-08 03:37

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;
}

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既然无缘

2020-12-08 03:44
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">
```
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