Bootstrap 3 Slide in Menu / Navbar on Mobile
I am building a browser-based mobile app and I've decided to use Bootstrap 3 as the css framework for the design. Bootstrap 3 comes with a great "responsive" feature in the navigation bar where it collapses automatically if it detects a specific "break point" regarding the resolution of the browser. It works in a lot of situations.
But have you noticed lately how a lot of browser-based mobile apps have the primary navigation hidden out of the left of the screen, and when the toggle icon is pressed (toggled) in the top-right corner, the primary navigation slides out to the right about 2/3 of the way into the screen? This is an increasingly popular solution for navigating through browser-based apps on mobile devices and I think in theory it should be pretty easy to modify bootstrap css/js to accommodate this version of the navigation collapse feature.
How can these feature be implemented? It seems like it shouldn't take too much modification. I'd really like to hear your thoughts/solutions on this matter. Also, I think it would be a great long-term solution for Bootstrap to implement as a built-in feature.
Unfortunately I have not made any attempts to create this feature because while I am familiar with these technologies, I am predominantly a PHP/MySQL developer and I believe a feature as useful as this should be built by experts with insight that I don't have as a front-end developer.
There is a popular Bootstrap fork - Jasny Bootstrap. The fork has out of the box various off-canvas implementations (slide-in, push, reveal): http://jasny.github.io/bootstrap/javascript/#offcanvas
This was for my own project and I'm sharing it here too.
DEMO: http://jsbin.com/OjOTIGaP/1/edit
This one had trouble after 3.2, so the one below may work better for you:
https://jsbin.com/seqola/2/edit --- BETTER VERSION, slightly
CSS
/* adjust body when menu is open */
body.slide-active {
overflow-x: hidden
}
/*first child of #page-content so it doesn't shift around*/
.no-margin-top {
margin-top: 0px!important
}
/*wrap the entire page content but not nav inside this div if not a fixed top, don't add any top padding */
#page-content {
position: relative;
padding-top: 70px;
left: 0;
}
#page-content.slide-active {
padding-top: 0
}
/* put toggle bars on the left :: not using button */
#slide-nav .navbar-toggle {
cursor: pointer;
position: relative;
line-height: 0;
float: left;
margin: 0;
width: 30px;
height: 40px;
padding: 10px 0 0 0;
border: 0;
background: transparent;
}
/* icon bar prettyup - optional */
#slide-nav .navbar-toggle > .icon-bar {
width: 100%;
display: block;
height: 3px;
margin: 5px 0 0 0;
}
#slide-nav .navbar-toggle.slide-active .icon-bar {
background: orange
}
.navbar-header {
position: relative
}
/* un fix the navbar when active so that all the menu items are accessible */
.navbar.navbar-fixed-top.slide-active {
position: relative
}
/* screw writing importants and shit, just stick it in max width since these classes are not shared between sizes */
@media (max-width:767px) {
#slide-nav .container {
margin: 0;
padding: 0!important;
}
#slide-nav .navbar-header {
margin: 0 auto;
padding: 0 15px;
}
#slide-nav .navbar.slide-active {
position: absolute;
width: 80%;
top: -1px;
z-index: 1000;
}
#slide-nav #slidemenu {
background: #f7f7f7;
left: -100%;
width: 80%;
min-width: 0;
position: absolute;
padding-left: 0;
z-index: 2;
top: -8px;
margin: 0;
}
#slide-nav #slidemenu .navbar-nav {
min-width: 0;
width: 100%;
margin: 0;
}
#slide-nav #slidemenu .navbar-nav .dropdown-menu li a {
min-width: 0;
width: 80%;
white-space: normal;
}
#slide-nav {
border-top: 0
}
#slide-nav.navbar-inverse #slidemenu {
background: #333
}
/* this is behind the navigation but the navigation is not inside it so that the navigation is accessible and scrolls*/
#slide-nav #navbar-height-col {
position: fixed;
top: 0;
height: 100%;
width: 80%;
left: -80%;
background: #eee;
}
#slide-nav.navbar-inverse #navbar-height-col {
background: #333;
z-index: 1;
border: 0;
}
#slide-nav .navbar-form {
width: 100%;
margin: 8px 0;
text-align: center;
overflow: hidden;
/*fast clearfixer*/
}
#slide-nav .navbar-form .form-control {
text-align: center
}
#slide-nav .navbar-form .btn {
width: 100%
}
}
@media (min-width:768px) {
#page-content {
left: 0!important
}
.navbar.navbar-fixed-top.slide-active {
position: fixed
}
.navbar-header {
left: 0!important
}
}
HTML
<div class="navbar navbar-inverse navbar-fixed-top" role="navigation" id="slide-nav">
<div class="container">
<div class="navbar-header">
<a class="navbar-toggle">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</a>
<a class="navbar-brand" href="#">Project name</a>
</div>
<div id="slidemenu">
<form class="navbar-form navbar-right" role="form">
<div class="form-group">
<input type="search" placeholder="search" class="form-control">
</div>
<button type="submit" class="btn btn-primary">Search</button>
</form>
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a></li>
<li><a href="#about">About</a></li>
<li><a href="#contact">Contact</a></li>
<li class="dropdown"> <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown <b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li class="divider"></li>
<li class="dropdown-header">Nav header</li>
<li><a href="#">Separated link</a></li>
<li><a href="#">One more separated link</a></li>
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li class="divider"></li>
<li class="dropdown-header">Nav header</li>
<li><a href="#">Separated link</a></li>
<li><a href="#">One more separated link</a></li>
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li class="divider"></li>
<li class="dropdown-header">Nav header</li>
<li><a href="#">Separated link test long title goes here</a></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
</div>
</div>
</div>
jQuery
$(document).ready(function () {
//stick in the fixed 100% height behind the navbar but don't wrap it
$('#slide-nav.navbar .container').append($('<div id="navbar-height-col"></div>'));
// Enter your ids or classes
var toggler = '.navbar-toggle';
var pagewrapper = '#page-content';
var navigationwrapper = '.navbar-header';
var menuwidth = '100%'; // the menu inside the slide menu itself
var slidewidth = '80%';
var menuneg = '-100%';
var slideneg = '-80%';
$("#slide-nav").on("click", toggler, function (e) {
var selected = $(this).hasClass('slide-active');
$('#slidemenu').stop().animate({
left: selected ? menuneg : '0px'
});
$('#navbar-height-col').stop().animate({
left: selected ? slideneg : '0px'
});
$(pagewrapper).stop().animate({
left: selected ? '0px' : slidewidth
});
$(navigationwrapper).stop().animate({
left: selected ? '0px' : slidewidth
});
$(this).toggleClass('slide-active', !selected);
$('#slidemenu').toggleClass('slide-active');
$('#page-content, .navbar, body, .navbar-header').toggleClass('slide-active');
});
var selected = '#slidemenu, #page-content, body, .navbar, .navbar-header';
$(window).on("resize", function () {
if ($(window).width() > 767 && $('.navbar-toggle').is(':hidden')) {
$(selected).removeClass('slide-active');
}
});
});
Bootstrap 4
Create a responsive navbar sidebar "drawer" in Bootstrap 4?
Bootstrap 3
I think what you're looking for is generally known as an "off-canvas" layout. Here is the standard off-canvas example from the official Bootstrap docs: http://getbootstrap.com/examples/offcanvas/
The "official" example uses a right-side sidebar the toggle off and on separately from the top navbar menu. I also found these off-canvas variations that slide in from the left and may be closer to what you're looking for..
http://www.bootstrapzero.com/bootstrap-template/off-canvas-sidebar http://www.bootstrapzero.com/bootstrap-template/facebook
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