I'm just diving into Bootstrap and I've started at navbars, so I've created a navbar that opens as a toggler menu when screen size is mobile. The problem I have is that I press the menu and it opens but when the menu has dropped down it disappears, then when I press the menu again I see the menu slide back up.
The problem seems to be when the menu is fully open it isn't visible.
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.3.0-alpha1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-GLhlTQ8iRABdZLl6O3oVMWSktQOp6b7In1Zl3/Jr59b6EGGoI1aFkw7cmDA6j6gD" crossorigin="anonymous" />
<nav class="navbar navbar-expand-md bg-danger navbar-light">
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarTogglerDemo01" aria-controls="navbarTogglerDemo01" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<a class="navbar-brand">ELectro</a>
<div class="collapse navbar-collapse" id="navbarTogglerDemo01">
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" href="">About</a>
</li>
<li class="nav-item">
<a class="nav-link" href="">Portfolio</a>
</li>
<li class="nav-item">
<a class="nav-link" href="">Portfolio</a>
</li>
</ul>
</div>
</nav>
<script src="https://code.jquery.com/jquery-1.12.4.min.js" integrity="sha384-nvAa0+6Qg9clwYCGGPpDQLVpLNn0fRaROjHqs13t4Ggj3Ez50XnGQqc/r8MhnRDZ" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#3.4.1/dist/js/bootstrap.min.js" integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd" crossorigin="anonymous"></script>
I have followed the code from BootStrap as follows:
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script>
<!-- Nav Bar -->
<nav class="navbar bg-dark navbar-expand-lg navbar-dark">
<a class="navbar-brand" href="index.html">One Basket</a>
<button class="navbar-toggler ms-auto" type="button" data-mdb-toggle="collapse" data-mdb-target="#navbarToggleExternalContent2" aria- controls="navbarToggleExternalContent2" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarToggleExternalContent2">
<ul class="navbar-nav ms-auto">
<li class="nav-item">
<a class="nav-link" href="">Contact</a>
</li>
<li class="nav-item">
<a class="nav-link" href="">Pricing</a>
</li>
<li class="nav-item">
<a class="nav-link" href="">Download</a>
</li>
</ul>
</div>
</nav>
I have also added the CSS from the bootstrap documentation and the javascript to the HTML file.
The JS is at the end before the close body tag, just like it says on the bootstrap website.
The CSS is the first link tag in the head.
But when I try to press the button nothing happens.
You have wrong attributes to make it work by default, just replace data-mdb-toggle="collapse" data-mdb-target="#navbarToggleExternalContent2" with data-bs-toggle="collapse" data-bs-target="#navbarToggleExternalContent2", see (in my CodeSnippet I using BS v5.1):
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script>
<!-- Nav Bar -->
<nav class="navbar bg-dark navbar-expand-lg navbar-dark">
<a class="navbar-brand" href="index.html">One Basket</a>
<button class="navbar-toggler ms-auto" type="button" data-bs-toggle="collapse" data-bs-target="#navbarToggleExternalContent2" aria- controls="navbarToggleExternalContent2" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarToggleExternalContent2">
<ul class="navbar-nav ms-auto">
<li class="nav-item">
<a class="nav-link" href="">Contact</a>
</li>
<li class="nav-item">
<a class="nav-link" href="">Pricing</a>
</li>
<li class="nav-item">
<a class="nav-link" href="">Download</a>
</li>
</ul>
</div>
</nav>
I have a bootstrap nav that is a collection of copied and pasted snippets from their website, but for some reason my dropdown nav doesn't drop anything down, and I'm a bit confused why it's wrong.
Here's what I have:
<div class="container">
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<a class="navbar-brand" href="#">CPM</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNavAltMarkup" aria-controls="navbarNavAltMarkup" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNavAltMarkup">
<div class="navbar-nav me-auto">
<a class="nav-link" aria-current="page" href="{{ url_for('user.welcome') }}">Home</a>
</div>
<ul class="navbar-nav">
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">
Account
</a>
<ul class="dropdown-menu" aria-labelledby="navbarDropdown">
<li><a class="dropdown-item" href="{{ url_for('user.welcome') }}">Settings</a></li>
</ul>
</li>
<a class="btn btn-outline-danger me-md-2" href="{{ url_for('user.logout') }}">Logout</a>
</ul>
</div>
</div>
</nav>
</div>
Most of this was snipped from the resource page for it in bootstrap's docs: https://getbootstrap.com/docs/5.0/components/navbar/
The href values come from my flask application. I imagine it's something small, but when I click on the Account button in the dropdown menu nothing drops down and I don't get to see the li for Settings.
I downloaded the main javascript and css file for bootstrap and am serving it locally.
Im using bootstrap 4 and I have the solution to this with bootstrap 3 but appearently with bootsrap 4 is not quite the same. Im stuck and this is the last thing in need in order to complete the project.
this is my navbar (with bootstrap 4):
<nav class="navbar fixed-top navbar-expand-lg navbar-light pink" id="navbar-fixed">
<a class="navbar-brand" href="#"><img src="images/perfect-party-rental-logo.jpg" class="logo"></a>
<!-- Collapse button -->
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupported" aria-controls="navbarSupported"
aria-expanded="false" aria-label="Toggle navigation"></button>
<!-- Collapsible content -->
<div class="collapse navbar-collapse" id="navbarSupported">
<ul class="navbar-nav mr-auto">
<li class="nav-item">
<a class="nav-link active" href="#home"><i class="fa fa-home" aria-hidden="true"></i> Home<span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#inflatables"><i class="fa fa-smile-o" aria-hidden="true"></i> Inflatables</a>
</li>... <!--ETC-->
And this the JS code snipppet from bootstrap 3 :
$(".navbar-collapse ul li a").click(function(event) {
$(".navbar-collapse").collapse('hide');
});
The console keep saying "collapse" is not a function :S
Any clue?
Here's an example of a working navbar in Bootstrap 4 (as you can see it doesn't require any additional JavaScript snippets).
Click the "run code snippet" button and expand to full screen for testing:
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#">Disabled</a>
</li>
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</nav>
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
EDIT (adding from my comment):
I checked your codepen and while it was working on my side I saw this in the console: "Uncaught Error: Bootstrap dropdown require Popper.js" which means you aren't loading the popper.js which is required for all things that pop up or drop down in Bootstrap 4. Use the files I included at the bottom of my code snippet and it should work. Also, in your codepen you are loading bootstrap 4.0.0-beta.2. That version is outdated now. Copy and paste ALL stuff from my snippet. That's why I posted it for you.
I'm using Bootstrap an it's collapsed Navbar on a one-page website together with a simple scrolling script, so if I click on a single link the page scrolls down to anchor - works great. However the Navbar does not collapse when I click on a link which covers a lot of content on mobile devices - you first have to click on the toggle which is annoying. I found out that it should help to add the data-toggle and data-target attributes to the links, but it doesn't work at all - where is my mistake?
NAVIGATION:
<nav class="navbar navbar-default mainbar" role="navigation">
<div class="navbar-header">
<button type="button" class="navbar-toggle hvr-bounce-to-bottom" data- toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div class="collapse navbar-collapse navbar-collapse">
<ul class="nav navbar-nav">
<li><a data-toggle="collapse" data-target=".navbar-collapse" href="#link1" class="navelement">Link 1</a></li>
<li><a data-toggle="collapse" data-target=".navbar-collapse" href="#link2" class="navelement">Link 2</a></li>
</ul>
</div>
</nav>
UPDATE:
It's a Javascript problem. My smooth-scroll script causes an issue:
var corp = $("html, body");
$(".navelement").click(function() {
var flag = $.attr(this, "href");
corp.animate({
scrollTop: $(schild).offset().top - 60
}, 1600, function() {
window.location.hash = flag;
});
return false;
});
It's a pretty simple script, but I have no clue what to do with it to make the navbar collapse.
Using the above example, what worked for me was to add data-toggle="collapse" data-target=".navbar-collapse" to the outer div
<div class="collapse navbar-collapse" id="my-navbar-collapse">
<div class="collapse navbar-collapse" id="my-navbar-collapse" toggle="collapse" data-target=".navbar-collapse">
The entire menu looks like this with the change:
<nav class="navbar navbar-expand-xl navbar-light bg-light">
<a class="navbar-brand" href="#">Main</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent" data-toggle="collapse" data-target=".navbar-collapse" >
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" routerLink="/home">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item active">
<a class="nav-link" routerLink="/guitars">Guitars <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" routerLink="/nasa-image">NASA Image</a>
<a class="dropdown-item disabled" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item disabled" href="#">Something else here</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#">Disabled</a>
</li>
</ul>
</div>
</nav>
I know this is a bit late coming in however, even in Bootstrap 4.0.0-alpha.6; the navbar does NOT inherently close after a menu item selection. The docs at Bootsrap have gotten better - but there is NO clear-cut example on how to get the navbar to close after a new menu selection.
In your html file - you go to the target div for the collapse class - the div I'm sowing below came strait from the Bootstrap site - so nothing has changed on that note:
<div class="collapse navbar-collapse" id="navbarSupportedContent">
You use that id to monitor if the navbar is expanded (out of collapsed mode), then I added a click event to the a.nav-links in the navbar that re-collapses the navbar:
$("#navbarSupportedContent").on('show.bs.collapse', function() {
$('a.nav-link').click(function() {
$("#navbarSupportedContent").collapse('hide');
});
});
I would recommend following this a little bit closer to help you out.
http://getbootstrap.com/components/#navbar
Seems to be what you are basing it off of.
Mainly, when you look # that link, look at the first button line that you have and compare as that is your main drop down on the mobile version which takes up lots of screen real estate as you mentioned.
<nav class="navbar navbar-default mainbar" role="navigation">
<div class="navbar-header">
<button type="button" class="navbar-toggle hvr-bounce-to-bottom collapsed" data-toggle="collapse" data-target="#my-navbar-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div class="collapse navbar-collapse" id="my-navbar-collapse">
<ul class="nav navbar-nav">
<li><a data-toggle="collapse" data-target=".navbar-collapse" href="#link1" class="navelement">Link 1</a></li>
<li><a data-toggle="collapse" data-target=".navbar-collapse" href="#link2" class="navelement">Link 2</a></li>
</ul>
</div>
</nav>
1) I changed this part data- toggle="collapse" to data-toggle="collapse". There was just an extra space on line 3.
2) I added an id to your drop down instead of a class to identify more particularly (may not matter) and also changed the name to "my-navbar-collapse" This change was made on lines 3 and 11. Also this previously means you were just using the same class twice on the same element which didn't make sense.
3) I added the class "collapsed" into your class on line 3 located after "hvr-bounce-to-bottom" Should allow it to be collapsed by default, and only show if it is opened by the user.
That should help fix it as it cleans it up. Also, do you have a drop down in your nav bar that needs to be brought back up when you toggle other than the main button you listed? Doesn't seem so as of yet, just asking to make sure it's clear.
This works for me:
$('.navbar-nav>li>a').on('click', function(){
$('.navbar-collapse').collapse('hide');
});
The only problem with the solution above and the JSFiddle (jsfiddle.net/camdixon/v2gosj5s) is that when you are not on a mobile device, and the menu is not collapsed, the menu items blink. E.g. they collapse in place and reopen in place.
To repeat: expand the window of the JSFiddle result so that the menu is not collapsed, then click on a navbar item.
I've sort of solved the issue in addition to the JSFiddle version by altering the collapse data api in bootstrap.js as follows:
//Bootstrap v3.3.4
//line 662:
Collapse.prototype.toggle = function () {
//Added code:
var mq = window.matchMedia('screen and (min-width: 768px)')
if (mq.matches) return
//End added code
this[this.$element.hasClass('in') ? 'hide' : 'show']()
}
I'd rather not hardcode the min-width, but don't yet know how I would access the media query values in the css (see #screen-sm-min in less).
$(document).ready(function () {
$(".navbar-nav li.trigger-collapse a").click(function(event) {
$(".navbar-collapse").collapse('hide');
});
});
This small jquery snippet works in this way:
If navbar is expanded, nothing happens, so no blink (normal bootstrap behavior).
If navbar is collapsed, after a click event, closes the navbar.
Works on bootstrap 4
$(".navbar a").click(function(event) {
// check if window is small enough so dropdown is created
var toggle = $(".navbar-toggler").is(":visible");
if (toggle) {
$(".navbar-collapse").collapse('hide');
}
});
.wrapper {
height: 400px;
}
#div1 {
background-color: #73683b;
}
#div2 {
background-color: #B0A084;
}
#div3 {
background-color: #E9E6FF;
}
#div4 {
background-color: #B3679B;
}
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" integrity="sha384-9aIt2nRpC12Uk9gS9baDl411NQApFmC26EwAOH8WgZl5MYYxFfc+NcPb1dKGj7Sk" crossorigin="anonymous">
<div class="container px-0">
<nav class="navbar navbar-expand-lg navbar-dark bg-dark mx-0">
<a class="navbar-brand" href="#">Logo</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#div1">Link 1</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#div2">Link 2</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#div3">Link 3</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#div4">Link 4</a>
</li>
</div>
</nav>
</div>
<div class="container wrapper d-flex flex-column justify-content-center" id="div1">
<p class="text-center">DIV 1</p>
</div>
<div class="container wrapper d-flex flex-column justify-content-center" id="div2">
<p class="text-center">DIV 2</p>
</div>
<div class="container wrapper d-flex flex-column justify-content-center" id="div3">
<p class="text-center">DIV 3</p>
</div>
<div class="container wrapper d-flex flex-column justify-content-center" id="div4">
<p class="text-center">DIV 4</p>
</div>
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js#1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.min.js" integrity="sha384-OgVRvuATP1z7JjHLkuOU7Xw704+h835Lr+6QL9UvYjZE3Ipu6Tp75j7Bh/kR0JKI" crossorigin="anonymous"></script>
You just need to add data-toggle and data-target in navbar code. Where class="collapse navbar-collapse navbar-collapse is used.
<div class="collapse navbar-collapse navbar-collapse" data-toggle="collapse" data-target="#navbar-collapse">
Home (current)
Guitars (current)
Dropdown
NASA Image
Another action
Something else here
Disabled
Just use span tag and add data-bs-toggle="collapse"` data-bs-target=".navbar-collapse" to each links. Finally this worked in my project.
<NavLink exact="true" className="nav-link" to="/">`<span data-bs-toggle="collapse"` data-bs-target=".navbar-collapse">Home</span></NavLink>
Just use span tag and add data-bs-toggle="collapse"` data-bs-target=".navbar-collapse" and place that span tag in anchor tag. below is the code
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container">
<a class="navbar-brand" href="/">Navbar</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav me-auto">
<li class="nav-item active">
<a class="nav-link" href="/"><span data-bs-target="#navbarSupportedContent" data-bs-toggle="collapse">Home</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#About"><span data-bs-target="#navbarSupportedContent" data-bs-toggle="collapse">About</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#Contact"><span data-bs-target="#navbarSupportedContent" data-bs-toggle="collapse">Contact</span></a>
</li>
</ul>
</div>
</div>
</nav>
In my case, the tabs had weird behavior and didn't close due to my vue :class bindings
<router-link class="nav-link text-light" :class="{active: checker}" to="/ideas">
This variant works
<router-link class="nav-link text-light" to="/ideas">