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。
0x01 基本实例
Bootstrap实现轮播幻灯片的效果,只需要简单地使用class开发就可以了:
<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="../../css/bootstrap.min.css" rel="stylesheet">
<script src="http://cdn.bootcss.com/jquery/1.11.1/jquery.min.js"></script>
<script src="../../js/bootstrap.min.js"></script>
<title>轮播幻灯片</title>
</head>
<body>
<div class="container col-md-4 col-md-offset-4">
<div id="myCarouel" class="carousel slide">
<!--幻灯片切换指标-->
<ol class="carousel-indicators">
<li data-toggle="#myCarouel" data-slide-to="0" class="active"></li>
<li data-toggle="#myCarouel" data-slide-to="1"></li>
<li data-toggle="#myCarouel" data-slide-to="2"></li>
</ol>
<!--幻灯片项目-->
<div class="carousel-inner">
<div class="item active">
<img src="../../img/slide1.png" alt="项目1">
</div>
<div class="item">
<img src="../../img/slide2.png" alt="项目2">
</div>
<div class="item">
<img src="../../img/slide3.png" alt="项目3">
</div>
</div>
<!--幻灯片导航-->
<a class="carousel-control left" href="#myCarouel" data-slide="prev"><<<</a>
<a class="carousel-control right" href="#myCarouel" data-slide="next">>>></a>
</div>
</div>
</body>
</html>
效果如下:
几点说明:
(1)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。
(2)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。
(3)data-ride="carousel" 属性用于标记轮播在页面加载时就开始动画播放。
0x02 添加标题
可以通过.item内的.carousel-caption 元素向幻灯片添加标题:
<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="../../css/bootstrap.min.css" rel="stylesheet">
<script src="http://cdn.bootcss.com/jquery/1.11.1/jquery.min.js"></script>
<script src="../../js/bootstrap.min.js"></script>
<title>添加标题</title>
</head>
<body>
<div class="container col-md-4 col-md-offset-4">
<div id="myCarouel" class="carousel slide">
<!--幻灯片切换指标-->
<ol class="carousel-indicators">
<li data-toggle="#myCarouel" data-slide-to="0" class="active"></li>
<li data-toggle="#myCarouel" data-slide-to="1"></li>
<li data-toggle="#myCarouel" data-slide-to="2"></li>
</ol>
<!--幻灯片项目-->
<div class="carousel-inner">
<div class="item active">
<img src="../../img/slide1.png" alt="项目1">
<div class="carousel-caption">标题1</div>
</div>
<div class="item">
<img src="../../img/slide2.png" alt="项目2">
<div class="carousel-caption">标题2</div>
</div>
<div class="item">
<img src="../../img/slide3.png" alt="项目3">
<div class="carousel-caption">标题3</div>
</div>
</div>
<!--幻灯片导航-->
<a class="carousel-control left" href="#myCarouel" data-slide="prev"><<<</a>
<a class="carousel-control right" href="#myCarouel" data-slide="next">>>></a>
</div>
</div>
</body>
</html>
效果如下:
0x03 JS切换
还可以利用JS来实现幻灯片的切换。下面添加一些按钮来实现幻灯片的控制:
<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="../../css/bootstrap.min.css" rel="stylesheet">
<script src="http://cdn.bootcss.com/jquery/1.11.1/jquery.min.js"></script>
<script src="../../js/bootstrap.min.js"></script>
<title>JS切换</title>
</head>
<body>
<div class="container col-md-6 col-md-offset-3">
<div id="myCarouel" class="carousel slide">
<!--幻灯片切换指标-->
<ol class="carousel-indicators">
<li data-toggle="#myCarouel" data-slide-to="0" class="active"></li>
<li data-toggle="#myCarouel" data-slide-to="1"></li>
<li data-toggle="#myCarouel" data-slide-to="2"></li>
</ol>
<!--幻灯片项目-->
<div class="carousel-inner">
<div class="item active">
<img src="../../img/slide1.png" alt="项目1">
<div class="carousel-caption">标题1</div>
</div>
<div class="item">
<img src="../../img/slide2.png" alt="项目2">
<div class="carousel-caption">标题2</div>
</div>
<div class="item">
<img src="../../img/slide3.png" alt="项目3">
<div class="carousel-caption">标题3</div>
</div>
</div>
<!--幻灯片导航-->
<a class="carousel-control left" href="#myCarouel" data-slide="prev"><<<</a>
<a class="carousel-control right" href="#myCarouel" data-slide="next">>>></a>
<!--控制按钮-->
<div style="text-align: center">
<button type="button" class="btn start-slide">开始切换</button>
<button type="button" class="btn pause-slide">终止切换</button>
<button type="button" class="btn prev-slide">前一个幻灯</button>
<button type="button" class="btn next-slide">后一个幻灯</button>
<button type="button" class="btn slide-1">幻灯1</button>
<button type="button" class="btn slide-2">幻灯2</button>
<button type="button" class="btn slide-3">幻灯3</button>
</div>
</div>
</div>
<script>
$(function () {
//启动轮播
$(".start-slide").click(function () {
$("#myCarouel").carousel('cycle');
})
//终止轮播
$(".pause-slide").click(function () {
$("#myCarouel").carousel('pause');
})
//前一个幻灯
$(".prev-slide").click(function () {
$("#myCarouel").carousel('prev');
})
//下一个幻灯
$(".next-slide").click(function () {
$("#myCarouel").carousel('next');
})
//切换到指定的幻灯
$(".slide-1").click(function () {
$("#mycarouel").carousel(0);
})
$(".slide-2").click(function () {
$("#mycarouel").carousel(1);
})
$(".slide-3").click(function () {
$("#mycarouel").carousel(2);
})
})
</script>
</body>
</html>
效果如下:
0x04 事件
同样地,Carousel也定义了一些事件:
(1)slide.bs.carousel
当调用 slide 实例方法时立即触发该事件:
$('#mycarouel').on('slide.bs.carousel', function () {
// 执行一些动作...
})
(2)slid.bs.carousel
当轮播完成幻灯片过渡效果时触发该事件:
$('#mycarouel').on('slid.bs.carousel', function () {
// 执行一些动作...
})
看下面的例子:
<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="../../css/bootstrap.min.css" rel="stylesheet">
<script src="http://cdn.bootcss.com/jquery/1.11.1/jquery.min.js"></script>
<script src="../../js/bootstrap.min.js"></script>
<title>事件</title>
</head>
<body>
<div class="container col-md-4 col-md-offset-4">
<div id="myCarouel" class="carousel slide">
<!--幻灯片切换指标-->
<ol class="carousel-indicators">
<li data-toggle="#myCarouel" data-slide-to="0" class="active"></li>
<li data-toggle="#myCarouel" data-slide-to="1"></li>
<li data-toggle="#myCarouel" data-slide-to="2"></li>
</ol>
<!--幻灯片项目-->
<div class="carousel-inner">
<div class="item active">
<img src="../../img/slide1.png" alt="项目1">
</div>
<div class="item">
<img src="../../img/slide2.png" alt="项目2">
</div>
<div class="item">
<img src="../../img/slide3.png" alt="项目3">
</div>
</div>
<!--幻灯片导航-->
<a class="carousel-control left" href="#myCarouel" data-slide="prev"><<<</a>
<a class="carousel-control right" href="#myCarouel" data-slide="next">>>></a>
</div>
</div>
<script>
$(function () {
$("#myCarouel").on('slide.bs.carousel',function () {
alert('切换幻灯');
});
})
</script>
</body>
</html>
效果如下:
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