bootstrap自定义样式之bootstrap实现侧边导航栏功能

bootstrap自带的响应式导航栏是向下滑动的，有时满足不了个性化的需求，需要做一个类似于android drawerLayout 侧滑的菜单，这就是我要实现的bootstrap自定义侧滑菜单，参考了很多官网的侧滑，实现方法各有不同，优缺点也十分明显，有的官网首页为了仅仅实现一个侧滑的效果，用了owl.carousel滑屏的插件，个人觉得小题大做了。这个bootstrap侧滑菜单更专业的名字叫做手机导航栏。我也比较这个名字，更符合bootstrap的特性。所以我这篇文章介绍的更容易的一种做法，新手更容易接受。

bootstrap侧边导航栏实现原理

1.侧滑栏使用定位fixed
2.使用bootstrap响应式使用工具类 visible-sm visible-xs hidden-xs hidden-sm等对不同屏幕适配
3.侧滑栏的侧滑效果不使用jquery方法来实现，使用的是css3 transforms属性进行div的移动，侧滑的动画效果使用的是css属性transition
4.缺点：使用两套菜单，一套是pc端屏幕显示的菜单，一套是移动端显示的手机导航菜单，这个缺点比较明显，生成无关的标签，优点代码少，简单容易接受

效果图

 

bootstrap侧边导航栏

bootstrap导航栏布局
  <!--手机导航栏-->
  <div id="mobile-menu" class="mobile-nav visible-xs visible-sm">
    <ul>
      <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >首页</a></li>
      <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Java</a></li>
      <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >SVN</a></li>
      <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >iOS</a></li>
    </ul>
  </div>
  <!--pc导航栏-->
  <nav class="navbar-inverse visible-lg visible-md" role="navigation">
    <div class="container">
      <div class="navbar-header">
        <a class="navbar-brand" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >菜鸟教程</a>
      </div>
      <div>
        <ul class="nav navbar-nav">
          <li class="active"><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >iOS</a></li>
          <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >SVN</a></li>
          <li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="dropdown-toggle" data-toggle="dropdown">Java</a></li>
        </ul>
      </div>
    </div>
  </nav>
  <!--手机导航栏侧滑-->
  <div class="nav-btn visible-xs visible-sm">
    <a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" class="mobile-nav-taggle" id="mobile-nav-taggle">
      <span class="glyphicon glyphicon-align-justify"></span>
    </a>
  </div>

一个导航栏的布局，用了两个导航菜单，一个是pc端的，一个是手机端，利用bootstrap响应式使用工具类visible-xs visible-sm来实现pc端隐藏切换按钮； visible-lg visible-md 实现了pc端显示导航栏；visible-xs visible-sm实现手机端显示手机导航栏。
bootstrap响应式工具类详见：https://www.runoob.com/bootstrap/bootstrap-responsive-utilities.html

css实现布局和侧滑效果（侧滑的关键css3属性transform、transition）

代码不多，仅仅10行 

* {margin:0;padding:0;}
     #mobile-menu {position:fixed;top:0;left:0;width:220px;height:100%;background-color:#373737;z-index:9999;}
     a:hover ,a:focus{text-decoration:none}
    .mobile-nav ul li a {color:gray;display:block;padding:1em 5%;  border-top:1px solid #4f4f4f;border-bottom:1px solid #292929;transition:all 0.2s ease-out;cursor:pointer;#mobile-menu {position:fixed;top:0;left:0;width:220px;height:100%;background-color:#373737;z-index:9999;transition:all 0.3s ease-in;}}
    .mobile-nav ul li a:hover {background-color: #23A1F6;color: #ffffff;}
    .show-nav {transform:translateX(0);}
    .hide-nav {transform:translateX(-220px);} /*侧滑关键*/
    .mobile-nav-taggle {height:35px;line-height:35px;width:35px;background-color:#23A1F6;color:#ffffff;display:inline-block;text-align:center;cursor:pointer}
    .nav.avbar-inverse{position:relative;}
    .nav-btn {position:absolute;right:20px;top:20px;}

要值得注意的是css3的两个属性：

transform：旋转div，支持元素2D或3D旋转，属性值translateX（X）就是在X轴上移动Xpx的距离

以上所述是小编给大家介绍的bootstrap自定义样式之bootstrap实现侧边导航栏功能，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对三水点靠木网站的支持！