javascript - 如何修改移动设备和标签的引导轮播

Question

我正在使用引导滑块。

在桌面上，它有三张幻灯片，每张有 4 个图块

在选项卡上，它们必须是 4 张幻灯片，每张有 3 个图块
在移动设备上，需要有 12 张不同的幻灯片

我正在考虑实现这一点的最有效和优化的方法。

选项 1 - 创建 3 组不同的滑块。一次只显示一个

选项 2 - 使用 jquery 检测屏幕宽度并以编程方式添加额外的图块作为幻灯片，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。

score 8 · Accepted Answer

这里是：

.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，将每个项目的内容居中（使用 flexbox）+ 颜色，但我假设您已经掌握了这些内容）。CSS 没有前缀，如果有帮助，您会在fiddle中找到 SCSS 。

此外，您可能希望为min-height移动/平板电脑/桌面上的项目设置不同的 s。

除此之外，它非常干净......引导程序。没有风俗JS，没有风俗CSS。只是标记。

编辑：（根据评论）如果您不希望所有滑块始终运行并且更喜欢根据调整大小侦听器初始化每个滑块，则在更改@media间隔时（我建议使用enquire.js - 0.8k 缩小，在任何浏览器/设备），将每个轮播的标记放在一个脚本中，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和更改媒体间隔时，根据当前@media间隔（即 $('#mobile-markup').html()）获取模板的内容，将其放置在指定的 DOM 容器中并.carousel()在其上运行：

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

javascript - 如何修改移动设备和标签的引导轮播

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