jQuery Bootstrap 4 移动导航栏从左侧滑动

Bootstrap 4 mobile nav bar slide from left

提问by ramzan00

I am using the latest version of bootstrap. Kind of tried various things on my own and after that I thought I might find something on stackoverflow. But kind didn't get the thing. I mean how it works?

我正在使用最新版本的引导程序。我自己尝试了各种东西，之后我想我可能会在 stackoverflow 上找到一些东西。但是kind没有得到这个东西。我的意思是它是如何工作的？

This is my code. I am not gonna add any custom style here since they didn't really work that well instead they created some error.

这是我的代码。我不会在这里添加任何自定义样式，因为它们实际上并没有那么好用，而是产生了一些错误。

I also checked this post also Bootstrap - How to slide nav bar from left instead from topI tried all the answer from there but it didn't work for me.

我还检查了这篇文章Bootstrap - 如何从左侧而不是从顶部滑动导航栏我从那里尝试了所有答案，但它对我不起作用。

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwtheitroadesjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">

    <nav class="navbar navbar-toggleable-md navbar-inverse fixed-top bg-inverse">
 <button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
 <span class="navbar-toggler-icon"></span>
 </button>
 <a class="navbar-brand" href="">Roknil Style</a>
 <div class="collapse navbar-collapse" id="navbarCollapse">
  <ul class="navbar-nav mr-auto">
   <li class="nav-item active">
    <a class="nav-link" href="#">Home</a>
   </li>
   <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
   </li>
   <li class="nav-item">
    <a class="nav-link" href="#">About</a>
   </li>
  </ul>
  <form class="form-inline mt-2 mt-md-0">
  <input class="form-control mr-sm-2" type="text" placeholder="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-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>

回答by Zim

You can override the transition styles for the navbar-collapselike this...

您可以navbar-collapse像这样覆盖过渡样式...

Demo

演示

@media (max-width: 768px) {
    .navbar-collapse {
        position: absolute;
        top: 54px;
        left: 0;
        padding-left: 15px;
        padding-right: 15px;
        padding-bottom: 15px;
        width: 100%;
    }
    .navbar-collapse.collapsing {
        height: auto;
        -webkit-transition: left 0.3s ease;
        -o-transition: left 0.3s ease;
        -moz-transition: left 0.3s ease;
        transition: left 0.3s ease;
        left: -100%;
    }
    .navbar-collapse.show {
        left: 0;
        -webkit-transition: left 0.3s ease-in;
        -o-transition: left 0.3s ease-in;
        -moz-transition: left 0.3s ease-in;
        transition: left 0.3s ease-in;
    }
}

Demo - slide from right
Demo - slide from left

演示 - 从右侧
滑动 演示 - 从左侧滑动

回答by shaochuancs

Actually, you can use @Hrvoje Golcic's solutionto implement the slide-from-left effect.

实际上，您可以使用@Hrvoje Golcic 的解决方案来实现从左滑动效果。

I checked your code and fixed some issues. Please check the following code snippet. You may need to define more CSS rules to style the navigation bar.

我检查了您的代码并修复了一些问题。请检查以下代码片段。您可能需要定义更多 CSS 规则来设置导航栏的样式。

$(function(){
  // mobile menu slide from the left
  $('[data-toggle="slide-collapse"]').on('click', function() {
    $navMenuCont = $($(this).data('target'));
    $navMenuCont.animate({'width':'toggle'}, 280);
  });
})

    #navbarCollapse {
      position: fixed;
      top: 0;
      left: 0;
      z-index: 1;
      width: 280px; /*example + never use min-width with this solution */
      height: 100%;
      background: #000;
    }

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwtheitroadesjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">

    <nav class="navbar navbar-toggleable-md navbar-inverse fixed-top bg-inverse">
 <button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="slide-collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
 <span class="navbar-toggler-icon"></span>
 </button>
 <a class="navbar-brand" href="">Roknil Style</a>
 <div class="collapse navbar-collapse" id="navbarCollapse">
  <ul class="navbar-nav mr-auto">
   <li class="nav-item active">
    <a class="nav-link" href="#">Home</a>
   </li>
   <li class="nav-item">
    <a class="nav-link" href="#">Link</a>
   </li>
   <li class="nav-item">
    <a class="nav-link" href="#">About</a>
   </li>
  </ul>
  <form class="form-inline mt-2 mt-md-0">
  <input class="form-control mr-sm-2" type="text" placeholder="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-3.1.1.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>

回答by Dustin

The above CSS override does work. However, you have to wait for the height to transition first - causing a bit of a delay. The code below solves that.

上面的 CSS 覆盖确实有效。但是，您必须先等待高度过渡 - 会造成一些延迟。下面的代码解决了这个问题。

 @media (max-width: 768px) {
        .navbar-collapse {
            position: fixed;
            top: 0;
            left: 0;
            padding-left: 15px;
            padding-right: 15px;
            padding-bottom: 15px;
            width: 75%;
            height: 100%;
        }

        .navbar-collapse.collapsing {
            left: -75%;
            transition: height 0s ease;
        }

        .navbar-collapse.show {
            left: 0;
            transition: left 500ms ease-in-out;
        }

        .navbar-toggler.collapsed ~ .navbar-collapse {
            transition: left 500ms ease-in-out;
        }
    }