Bootstrap 轮播（Carousel）插件

Bootstrap 轮播（Carousel）插件是一种灵活的响应式的向站点添加滑块的方式。除此之外，内容也是足够灵活的，可以是图像、内嵌框架、视频或者其他您想要放置的任何类型的内容。

如果您想要单独引用该插件的功能，那么您需要引用 carousel.js 。或者，正如 Bootstrap 插件概览 一章中所提到，您可以引用 bootstrap.js 或压缩版的 bootstrap.min.js 。

实例

下面是一个简单的幻灯片，使用 Bootstrap 轮播（Carousel）插件显示了一个循环播放元素的通用组件。为了实现轮播，您只需要添加带有该标记的代码即可。不需要使用 data 属性，只需要简单的基于 class 的开发即可。

实例

< div id = " myCarousel " class = " carousel slide " > <!-- 轮播（Carousel）指标 --> < ol class = " carousel-indicators " > < li data-target = " #myCarousel " data-slide-to = " " class = " active " > </ li > < li data-target = " #myCarousel " data-slide-to = " 1 " > </ li > < li data-target = " #myCarousel " data-slide-to = " 2 " > </ li > </ ol > <!-- 轮播（Carousel）项目 --> < div class = " carousel-inner " > < div class = " item active " > < img src = " /static/uploads/2014/07/slide1.png " alt = " First slide " > </ div > < div class = " item " > < img src = " /static/uploads/2014/07/slide2.png " alt = " Second slide " > </ div > < div class = " item " > < img src = " /static/uploads/2014/07/slide3.png " alt = " Third slide " > </ div > </ div > <!-- 轮播（Carousel）导航 --> < a class = " carousel-control left " href = " #myCarousel " data-slide = " prev " > < span _ngcontent-c3 = " " aria-hidden = " true " class = " glyphicon glyphicon-chevron-right " > </ span > </ a > < a class = " carousel-control right " href = " #myCarousel " data-slide = " next " > &rsaquo; </ a > </ div >

尝试一下 »

结果如下所示：

简单的轮播（Carousel）插件

可选的标题

您可以通过 .item 内的 .carousel-caption 元素向幻灯片添加标题。只需要在该处放置任何可选的 HTML 即可，它会自动对齐并格式化。下面的实例演示了这点：

实例

< div id = " myCarousel " class = " carousel slide " > <!-- 轮播（Carousel）指标 --> < ol class = " carousel-indicators " > < li data-target = " #myCarousel " data-slide-to = " " class = " active " > </ li > < li data-target = " #myCarousel " data-slide-to = " 1 " > </ li > < li data-target = " #myCarousel " data-slide-to = " 2 " > </ li > </ ol > <!-- 轮播（Carousel）项目 --> < div class = " carousel-inner " > < div class = " item active " > < img src = " /static/uploads/2014/07/slide1.png " alt = " First slide " > < div class = " carousel-caption " > 标题 1 </ div > </ div > < div class = " item " > < img src = " /static/uploads/2014/07/slide2.png " alt = " Second slide " > < div class = " carousel-caption " > 标题 2 </ div > </ div > < div class = " item " > < img src = " /static/uploads/2014/07/slide3.png " alt = " Third slide " > < div class = " carousel-caption " > 标题 3 </ div > </ div > </ div > <!-- 轮播（Carousel）导航 --> < a class = " left carousel-control " href = " #myCarousel " 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 = " #myCarousel " role = " button " data-slide = " next " > < span class = " glyphicon glyphicon-chevron-right " aria-hidden = " true " > </ span > < span class = " sr-only " > Next </ span > </ a > </ div >

尝试一下 »

结果如下所示：

轮播（Carousel）插件的标题

用法

  • 通过 data 属性 ：使用 data 属性可以很容易控制轮播（Carousel）的位置。
    • 属性 data-slide 接受关键字 prev 或 next ，用来改变幻灯片相对于当前位置的位置。
    • 使用 data-slide-to 来向轮播传递一个原始滑动索引， data-slide-to="2" 将把滑块移动到一个特定的索引，索引从 0 开始计数。
    • data-ride="carousel" 属性用于标记轮播在页面加载时就开始动画播放。
  • 通过 JavaScript ：轮播（Carousel）可通过 JavaScript 手动调用，如下所示： 
    											$('.carousel').carousel()

选项

有一些选项是通过 data 属性或 JavaScript 来传递的。下表列出了这些选项：

选项名称 类型/默认值 Data 属性名称 描述
interval number
默认值：5000 		data-interval 自动循环每个项目之间延迟的时间量。如果为 false，轮播将不会自动循环。
pause string
默认值："hover" 		data-pause 鼠标进入时暂停轮播循环，鼠标离开时恢复轮播循环。
wrap boolean
默认值：true 		data-wrap 轮播是否连续循环。

方法

下面是一些轮播（Carousel）插件中有用的方法：

方法 描述 实例
.carousel(options) 初始化轮播为可选的 options 对象，并开始循环项目。 
												$('#identifier').carousel({
    interval: 2000
})
.carousel('cycle') 从左到右循环轮播项目。 
												$('#identifier').carousel('cycle')
.carousel('pause') 停止轮播循环项目。 
												$('#identifier').carousel('pause')
.carousel(number) 循环轮播到某个特定的帧（从 0 开始计数，与数组类似）。 
												$('#identifier').carousel(number)
.carousel('prev') 循环轮播到上一个项目。 
												$('#identifier').carousel('prev')
.carousel('next') 循环轮播到下一个项目。 
												$('#identifier').carousel('next')

实例

下面的实例演示了方法的用法：

实例

< div id = " myCarousel " class = " carousel slide " > <!-- 轮播（Carousel）指标 --> < ol class = " carousel-indicators " > < li data-target = " #myCarousel " data-slide-to = " " class = " active " > </ li > < li data-target = " #myCarousel " data-slide-to = " 1 " > </ li > < li data-target = " #myCarousel " data-slide-to = " 2 " > </ li > </ ol > <!-- 轮播（Carousel）项目 --> < div class = " carousel-inner " > < div class = " item active " > < img src = " /static/uploads/2014/07/slide1.png " alt = " First slide " > </ div > < div class = " item " > < img src = " /static/uploads/2014/07/slide2.png " alt = " Second slide " > </ div > < div class = " item " > < img src = " /static/uploads/2014/07/slide3.png " alt = " Third slide " > </ div > </ div > <!-- 轮播（Carousel）导航 --> < a class = " left carousel-control " href = " #myCarousel " 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 = " #myCarousel " role = " button " data-slide = " next " > < span class = " glyphicon glyphicon-chevron-right " aria-hidden = " true " > </ span > < span class = " sr-only " > Next </ span > </ a > <!-- 控制按钮 --> < div style = " text-align:center; " > < input type = " button " class = " btn start-slide " value = " Start " > < input type = " button " class = " btn pause-slide " value = " Pause " > < input type = " button " class = " btn prev-slide " value = " Previous Slide " > < input type = " button " class = " btn next-slide " value = " Next Slide " > < input type = " button " class = " btn slide-one " value = " Slide 1 " > < input type = " button " class = " btn slide-two " value = " Slide 2 " > < input type = " button " class = " btn slide-three " value = " Slide 3 " > </ div > </ div > < script >
$ ( function ( ) { // 初始化轮播 $ ( " .start-slide " ) . click ( function ( ) { $ ( " #myCarousel " ) . carousel ( ' cycle ' ) ; } ) ; // 停止轮播 $ ( " .pause-slide " ) . click ( function ( ) { $ ( " #myCarousel " ) . carousel ( ' pause ' ) ; } ) ; // 循环轮播到上一个项目 $ ( " .prev-slide " ) . click ( function ( ) { $ ( " #myCarousel " ) . carousel ( ' prev ' ) ; } ) ; // 循环轮播到下一个项目 $ ( " .next-slide " ) . click ( function ( ) { $ ( " #myCarousel " ) . carousel ( ' next ' ) ; } ) ; // 循环轮播到某个特定的帧 $ ( " .slide-one " ) . click ( function ( ) { $ ( " #myCarousel " ) . carousel ( ) ; } ) ; $ ( " .slide-two " ) . click ( function ( ) { $ ( " #myCarousel " ) . carousel ( 1 ) ; } ) ; $ ( " .slide-three " ) . click ( function ( ) { $ ( " #myCarousel " ) . carousel ( 2 ) ; } ) ; } ) ;
</ script >

尝试一下 »

结果如下所示：

轮播（Carousel）插件方法

事件

下表列出了轮播（Carousel）插件中要用到的事件。这些事件可在函数中当钩子使用。

事件 描述 实例
slide.bs.carousel 当调用 slide 实例方法时立即触发该事件。 
												$('#identifier').on('slide.bs.carousel', function () {
    // 执行一些动作...
})
slid.bs.carousel 当轮播完成幻灯片过渡效果时触发该事件。 
												$('#identifier').on('slid.bs.carousel', function () {
    // 执行一些动作...
})

实例

下面的实例演示了事件的用法：

实例

< div id = " myCarousel " class = " carousel slide " > <!-- 轮播（Carousel）指标 --> < ol class = " carousel-indicators " > < li data-target = " #myCarousel " data-slide-to = " " class = " active " > </ li > < li data-target = " #myCarousel " data-slide-to = " 1 " > </ li > < li data-target = " #myCarousel " data-slide-to = " 2 " > </ li > </ ol > <!-- 轮播（Carousel）项目 --> < div class = " carousel-inner " > < div class = " item active " > < img src = " /static/uploads/2014/07/slide1.png " alt = " First slide " > </ div > < div class = " item " > < img src = " /static/uploads/2014/07/slide2.png " alt = " Second slide " > </ div > < div class = " item " > < img src = " /static/uploads/2014/07/slide3.png " alt = " Third slide " > </ div > </ div > <!-- 轮播（Carousel）导航 --> < a class = " left carousel-control " href = " #myCarousel " 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 = " #myCarousel " role = " button " data-slide = " next " > < span class = " glyphicon glyphicon-chevron-right " aria-hidden = " true " > </ span > < span class = " sr-only " > Next </ span > </ a > </ div > < script >
$ ( function ( ) { $ ( ' #myCarousel ' ) . on ( ' slide.bs.carousel ' , function ( ) { alert ( " 当调用 slide 实例方法时立即触发该事件。 " ) ; } ) ; } ) ;
</ script >

尝试一下 »

结果如下所示：

轮播（Carousel）插件事件