What Is Scrollspy With Examples In Bootstrap

admin_img Posted By Bajarangi soft , Posted On 06-10-2020

Scrollspy is used to automatically update links in a navigation list based on scroll position by using tool will get information in right time by using scrollspy in bootstrap 4.

Bootstrap Scrollspy

1.How To create a Scrollspy In Bootstrap

<!DOCTYPE html>
<html lang="en">
<head>
    <title>Bootstrap Example</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
    <style>
        body {
            position: relative;
        }
    </style>
</head>
<body data-spy="scroll" data-target=".navbar" data-offset="50">

<nav class="navbar navbar-expand-sm bg-dark navbar-dark fixed-top">
    <ul class="navbar-nav">
        <li class="nav-item">
            <a class="nav-link" href="#section1">Section 1</a>
        </li>
        <li class="nav-item">
            <a class="nav-link" href="#section2">Section 2</a>
        </li>
        <li class="nav-item">
            <a class="nav-link" href="#section3">Section 3</a>
        </li>
        <li class="nav-item dropdown">
            <a class="nav-link dropdown-toggle" href="#" id="navbardrop" data-toggle="dropdown">
                Section 4
            </a>
            <div class="dropdown-menu">
                <a class="dropdown-item" href="#section41">Link 1</a>
                <a class="dropdown-item" href="#section42">Link 2</a>
            </div>
        </li>
    </ul>
</nav>

<div id="section1" class="container-fluid bg-success" style="padding-top:70px;padding-bottom:70px">
    <h1>Section 1</h1>
    <p>Try to scroll this section and look at the navigation bar while scrolling! Try to scroll this section and look at the navigation bar while scrolling!</p>
    <p>Try to scroll this section and look at the navigation bar while scrolling! Try to scroll this section and look at the navigation bar while scrolling!</p>
</div>
<div id="section2" class="container-fluid bg-warning" style="padding-top:70px;padding-bottom:70px">
    <h1>Section 2</h1>
    <p>Try to scroll this section and look at the navigation bar while scrolling! Try to scroll this section and look at the navigation bar while scrolling!</p>
    <p>Try to scroll this section and look at the navigation bar while scrolling! Try to scroll this section and look at the navigation bar while scrolling!</p>
</div>
<div id="section3" class="container-fluid bg-secondary" style="padding-top:70px;padding-bottom:70px">
    <h1>Section 3</h1>
    <p>Try to scroll this section and look at the navigation bar while scrolling! Try to scroll this section and look at the navigation bar while scrolling!</p>
    <p>Try to scroll this section and look at the navigation bar while scrolling! Try to scroll this section and look at the navigation bar while scrolling!</p>
</div>
<div id="section41" class="container-fluid bg-danger" style="padding-top:70px;padding-bottom:70px">
    <h1>Section 4 Submenu 1</h1>
    <p>Try to scroll this section and look at the navigation bar while scrolling! Try to scroll this section and look at the navigation bar while scrolling!</p>
    <p>Try to scroll this section and look at the navigation bar while scrolling! Try to scroll this section and look at the navigation bar while scrolling!</p>
</div>
<div id="section42" class="container-fluid bg-info" style="padding-top:70px;padding-bottom:70px">
    <h1>Section 4 Submenu 2</h1>
    <p>Try to scroll this section and look at the navigation bar while scrolling! Try to scroll this section and look at the navigation bar while scrolling!</p>
    <p>Try to scroll this section and look at the navigation bar while scrolling! Try to scroll this section and look at the navigation bar while scrolling!</p>
</div>

</body>
</html>
2.How To create a  Vertical Scrollspy In Bootstrap4
<!DOCTYPE html>
<html lang="en">
<head>
    <title>Bootstrap Example</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css">
    <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js"></script>
    <style>
        body {
            position: relative;
        }
        ul.nav-pills {
            top: 20px;
            position: fixed;
        }
        div.col-8 div {
            height: 500px;
        }
    </style>
</head>
<body data-spy="scroll" data-target="#myScrollspy" data-offset="1">

<div class="container-fluid">
    <div class="row">
        <nav class="col-sm-3 col-4" id="myScrollspy">
            <ul class="nav nav-pills flex-column">
                <li class="nav-item">
                    <a class="nav-link active" href="#section1">Section 1</a>
                </li>
                <li class="nav-item">
                    <a class="nav-link" href="#section2">Section 2</a>
                </li>
                <li class="nav-item">
                    <a class="nav-link" href="#section3">Section 3</a>
                </li>
                <li class="nav-item dropdown">
                    <a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#">Section 4</a>
                    <div class="dropdown-menu">
                        <a class="dropdown-item" href="#section41">Link 1</a>
                        <a class="dropdown-item" href="#section42">Link 2</a>
                    </div>
                </li>
            </ul>
        </nav>
        <div class="col-sm-9 col-8">
            <div id="section1" class="bg-success">
                <h1>Section 1</h1>
                <p>Try to scroll this section and look at the navigation list while scrolling!</p>
            </div>
            <div id="section2" class="bg-warning">
                <h1>Section 2</h1>
                <p>Try to scroll this section and look at the navigation list while scrolling!</p>
            </div>
            <div id="section3" class="bg-secondary">
                <h1>Section 3</h1>
                <p>Try to scroll this section and look at the navigation list while scrolling!</p>
            </div>
            <div id="section41" class="bg-danger">
                <h1>Section 4-1</h1>
                <p>Try to scroll this section and look at the navigation list while scrolling!</p>
            </div>
            <div id="section42" class="bg-info">
                <h1>Section 4-2</h1>
                <p>Try to scroll this section and look at the navigation list while scrolling!</p>
            </div>
        </div>
    </div>
</div>

</body>
</html>

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