Question

我正在使用自举滑块。

在桌面上，它有三个幻灯片，每个幻灯片有4个瓷砖

在标签上，它们必须是4张幻灯片，每张3张，
在移动设备上，需要有12个不同的幻灯片

我正在考虑实施此方法的最有效和最优化的方式。

选项1 - 创建3组不同的滑块。一次只能看到一个

选项2 - 使用jquery检测屏幕宽度，并以编程方式将额外的图块添加为幻灯片，隐藏额外的图块。我想这会很复杂。

如果有更好的方法来实现这一点，请提供帮助。

Answer 1

这是：

.carousel-inner .item.active {
  display: flex; 
}

.carousel-inner .item {
  background-color: #212121;
  color: white;
  padding: 0 15px; 
}
#desktopCarousel .carousel-inner .item > .row {
  min-height: 480px;
}
#tabletCarousel .carousel-inner .item > .row {
  min-height: 360px;
}
.carousel-inner .item > .row {
  flex-grow: 1;
  min-height: 320px;
  display: flex;
  flex-wrap: wrap;
  align-items: stretch; 
}
.carousel-inner .item > .row [class^="col-"] {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  text-align: center; 
}
.carousel-inner .item > .row .row {
  flex-grow: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: stretch; 
}
.carousel-inner .item > .row .row [class^="col-"] {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center; 
}

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>

<div id="desktopCarousel" class="carousel slide hidden-xs hidden-sm" data-ride="carousel">
  <ol class="carousel-indicators">
    <li data-target="#desktopCarousel" data-slide-to="0" class="active"></li>
    <li data-target="#desktopCarousel" data-slide-to="1"></li>
    <li data-target="#desktopCarousel" data-slide-to="2"></li>
  </ol>

  <div class="carousel-inner" role="listbox">
    <div class="item active">
      <div class="row">
        <div class="col-sm-6">
          First item
        </div>
        <div class="col-sm-6">
          <div class="row">
            <div class="col-sm-6">
              Second item
            </div>
            <div class="col-sm-6">
              Third item
            </div>
          </div>
          <div class="row">
            <div class="col-sm-12">
              Fourth item
            </div>
          </div>
        </div>
      </div>
    </div>
    <div class="item">
      <div class="row">
        <div class="col-sm-6">
          Fifth item
        </div>
        <div class="col-sm-6">
          <div class="row">
            <div class="col-sm-6">
              Sixth item
            </div>
            <div class="col-sm-6">
              Seventh item
            </div>
          </div>
          <div class="row">
            <div class="col-sm-12">
              Eighth item
            </div>
          </div>
        </div>
      </div>
    </div>
    <div class="item">
      <div class="row">
        <div class="col-sm-6">
          Nineth item
        </div>
        <div class="col-sm-6">
          <div class="row">
            <div class="col-sm-6">
              Tenth item
            </div>
            <div class="col-sm-6">
              Eleventh item
            </div>
          </div>
          <div class="row">
            <div class="col-sm-12">
              Twelfth item
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>

  <a class="left carousel-control" href="#desktopCarousel" role="button" data-slide="prev">
    <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="right carousel-control" href="#desktopCarousel" role="button" data-slide="next">
    <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

<div id="tabletCarousel" class="carousel slide hidden-xs hidden-md hidden-lg" data-ride="carousel">
  <ol class="carousel-indicators">
    <li data-target="#tabletCarousel" data-slide-to="0" class="active"></li>
    <li data-target="#tabletCarousel" data-slide-to="1"></li>
    <li data-target="#tabletCarousel" data-slide-to="2"></li>
    <li data-target="#tabletCarousel" data-slide-to="3"></li>
  </ol>

  <div class="carousel-inner" role="listbox">
    <div class="item active">
      <div class="row">
        <div class="col-sm-6">
          First item
        </div>
        <div class="col-sm-6">
          <div class="row">
            <div class="col-sm-12">
              Second item
            </div>
            <div class="col-sm-12">
              Third item
            </div>
          </div>
        </div>
      </div>
    </div>
    <div class="item">
      <div class="row">
        <div class="col-sm-6">
          Fourth item
        </div>
        <div class="col-sm-6">
          <div class="row">
            <div class="col-sm-12">
              Fifth item
            </div>
            <div class="col-sm-12">
              Sixth item
            </div>
          </div>
        </div>
      </div>
    </div>
    <div class="item">
     <div class="row">
        <div class="col-sm-6">
          Seventh item
        </div>
        <div class="col-sm-6">
          <div class="row">
            <div class="col-sm-12">
              Eighth item
            </div>
            <div class="col-sm-21">
              Nineth item
            </div>
          </div>
        </div>
      </div>     
    </div>
    <div class="item">
     <div class="row">
        <div class="col-sm-6">
          Tenth item
        </div>
        <div class="col-sm-6">
          <div class="row">
            <div class="col-sm-12">
              Eleventh item
            </div>
            <div class="col-sm-12">
              Twelvth item
            </div>
          </div>
        </div>
      </div>     
    </div>
  </div>

  <a class="left carousel-control" href="#tabletCarousel" role="button" data-slide="prev">
    <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="right carousel-control" href="#tabletCarousel" role="button" data-slide="next">
    <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

<div id="mobileCarousel" class="carousel slide hidden-sm hidden-md hidden-lg" data-ride="carousel">
  <ol class="carousel-indicators">
    <li data-target="#mobileCarousel" data-slide-to="0" class="active"></li>
    <li data-target="#mobileCarousel" data-slide-to="1"></li>
    <li data-target="#mobileCarousel" data-slide-to="2"></li>
    <li data-target="#mobileCarousel" data-slide-to="3"></li>
    <li data-target="#mobileCarousel" data-slide-to="4"></li>
    <li data-target="#mobileCarousel" data-slide-to="5"></li>
    <li data-target="#mobileCarousel" data-slide-to="6"></li>
    <li data-target="#mobileCarousel" data-slide-to="7"></li>
    <li data-target="#mobileCarousel" data-slide-to="8"></li>
    <li data-target="#mobileCarousel" data-slide-to="9"></li>
    <li data-target="#mobileCarousel" data-slide-to="10"></li>
    <li data-target="#mobileCarousel" data-slide-to="11"></li>
  </ol>

  <div class="carousel-inner" role="listbox">
    <div class="item active">
      <div class="row">
        <div class="col-sm-12">
          First item
        </div>
      </div>
    </div>
    <div class="item">
      <div class="row">
        <div class="col-sm-12">
          Second item
        </div>
      </div>
    </div>
    <div class="item">
      <div class="row">
        <div class="col-sm-12">
          Third item
        </div>
      </div>
    </div>
    <div class="item">
      <div class="row">
        <div class="col-sm-12">
          Fourth item
        </div>
      </div>
    </div>
    <div class="item">
      <div class="row">
        <div class="col-sm-12">
          Fifth item
        </div>
      </div>
    </div>
    <div class="item">
      <div class="row">
        <div class="col-sm-12">
          Sixth item
        </div>
      </div>
    </div>
    <div class="item">
      <div class="row">
        <div class="col-sm-12">
          Seventh item
        </div>
      </div>
    </div>
    <div class="item">
      <div class="row">
        <div class="col-sm-12">
          Eighth item
        </div>
      </div>
    </div>
    <div class="item">
      <div class="row">
        <div class="col-sm-12">
          Nineth item
        </div>
      </div>
    </div>
    <div class="item">
      <div class="row">
        <div class="col-sm-12">
          Tenth item
        </div>
      </div>
    </div>
    <div class="item">
      <div class="row">
        <div class="col-sm-12">
          Eleventh item
        </div>
      </div>
    </div>
    <div class="item">
      <div class="row">
        <div class="col-sm-12">
          Twelveth item
        </div>
      </div>
    </div>
  </div>

  <a class="left carousel-control" href="#mobileCarousel" role="button" data-slide="prev">
    <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  </a>
  <a class="right carousel-control" href="#mobileCarousel" role="button" data-slide="next">
    <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
    <span class="sr-only">Next</span>
  </a>
</div>

请注意，您实际上并不需要CSS（它只是为桌面滑块创建布局，将每个项目中的内容（使用flexbox）+颜色居中，但我认为您已经覆盖了这些内容）。 CSS没有前缀，如果有帮助，您将在the fiddle中找到SCSS。

此外，您可能希望为移动设备/平板电脑/台式机上的项目设置不同的min-height。

除此之外，它非常干净......引导程序。没有自定义JS，没有自定义CSS。只是标记。

编辑（根据评论）如果您不希望所有幻灯片一直在运行，并且希望在更改@media间隔时更改基于调整大小侦听器进行初始化我推荐enquire.js为此 - 缩小0.8k，在任何浏览器/设备上运行），将每个轮播的标记放在脚本中，具有不同的ID：

<script id="desktop-markup" type="text/template">
  <div id="desktopCarousel" class="carousel slide" data-ride="carousel">
    <!-- carousel markup here -->
  </div>
</script>
<script id="tablet-markup" type="text/template">
  <div id="tabletCarousel" class="carousel slide" data-ride="carousel">
    <!-- carousel markup here -->
  </div>
</script>
<script id="mobile-markup" type="text/template">
  <div id="mobileCarousel" class="carousel slide" data-ride="carousel">
    <!-- carousel markup here -->
  </div>
</script>

在页面load上，在更改媒体间隔时，根据当前@media间隔（即$('#mobile-markup').html()）获取模板的内容，将其放在指定的DOM容器中并运行.carousel()就可以了：

$('.carousel-container').html(
  $('#mobile-markup').html()
).find('.carousel').carousel(options); 
// where options is optional. :) 
// see http://getbootstrap.com/javascript/#carousel-options

如何为手机和标签修改bootstrap轮播

1 个答案: