4. 移动端常用开发框架
4.1 框架的概念
4.2 用bootstrap做轮播图
(1)搭建文件夹,文件夹06-bootstrap轮播图文件夹里面的bootstrap文件夹是下载下来的bootstrap框架
- (2)在新建的index.html文件中写入初始样式和结构
<style>
.focus {
width: 800px;
height: 300px;
background-color: pink;
margin: 200px auto;
}
</style><body>
<div class="focus">
</div>
</body>- 打开bootstrap官网--->点击导航栏上的中文文档-->JavaScript插件：https://v3.bootcss.com/javascript/
- 所有插件都依赖 jQuery （也就是说，jQuery必须在所有插件之前引入页面）,之后再引入js
<link rel="stylesheet" href="bootstrap/css/bootstrap.min.css">
<script src="bootstrap/js/jquery.min.js"></script>
<script src="bootstrap/js/bootstrap.min.js"></script>- 点击该网站右侧菜单的Carousel,出现轮播图，复制其结构部分
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
<li data-target="#carousel-example-generic" data-slide-to="1"></li>
<li data-target="#carousel-example-generic" data-slide-to="2"></li>
</ol>
<!-- Wrapper for slides -->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="..." alt="...">
<div class="carousel-caption">
...
</div>
</div>
<div class="item">
<img src="..." alt="...">
<div class="carousel-caption">
...
</div>
</div>
...
</div>
<!-- Controls -->
<a class="left carousel-control" href="#carousel-example-generic" 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="#carousel-example-generic" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>- 大致分析每个结构代表的是什么，在做内容做适当修改
<body>
<div class="focus">
<!-- 从bootstrap复制的结构部分 开始 -->
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
<!-- Indicators 小圆点-->
<ol class="carousel-indicators">
<li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
<li data-target="#carousel-example-generic" data-slide-to="1"></li>
<li data-target="#carousel-example-generic" data-slide-to="2"></li>
</ol>
<!-- Wrapper for slides 轮播图片-->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="upload/banner(1).dpg" alt="...">
<div class="carousel-caption">
这是我的图片1
</div>
</div>
<div class="item">
<img src="upload/banner1.dpg" alt="...">
<div class="carousel-caption">
这是我的图片2
</div>
</div>
<div class="item">
<img src="upload/banner2.dpg" alt="...">
<div class="carousel-caption">
这是我的图片3
</div>
</div>
</div>
<!-- Controls 左右箭头-->
<a class="left carousel-control" href="#carousel-example-generic" 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="#carousel-example-generic" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
<!-- 从bootstrap复制的结构部分 结束-->
</div>
</body>- 出现问题：复制的这一段代码比我们自己写的父盒子.focus要高一点。所以还要将里面的内容修改的和父亲一样高。修改方式：检查元素-->选中复制过来的结构中最大的那个盒子，找到该盒子的类名（.carousel），我们对类名进行修改就可以了
<style>
.focus {
width: 800px;
height: 300px;
background-color: pink;
margin: 200px auto;
}
.carousel,
.carousel img {
/*将复制来的大盒子以及大盒子里面的图片都改成和focus一样高*/
height: 300px!important;
width: 100%;
/*宽度可用继承 高度不能继承*/
}
</style>- 修改播放时间(将页面往下滑倒Method)复制其中的修改时间代码
$('.carousel').carousel({
interval: 2000
})- 复制到index.html里面的script中
<script>
// 从bootstrap中复制的js部分
$('.carousel').carousel({
interval: 2000 //每隔两秒钟播放一次
})
</script>- 最终结构如下
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="bootstrap/css/bootstrap.min.css">
<script src="bootstrap/js/jquery.min.js"></script>
<script src="bootstrap/js/bootstrap.min.js"></script>
<style>
.focus {
width: 800px;
height: 300px;
background-color: pink;
margin: 200px auto;
}
.carousel,
.carousel img {
/*将复制来的大盒子以及大盒子里面的图片都改成和focus一样高*/
height: 300px!important;
width: 100%;
/*宽度可用继承 高度不能继承*/
}
</style>
</head>
<body>
<div class="focus">
<!-- 从bootstrap复制的结构部分 开始 -->
<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
<!-- Indicators 小圆点-->
<ol class="carousel-indicators">
<li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
<li data-target="#carousel-example-generic" data-slide-to="1"></li>
<li data-target="#carousel-example-generic" data-slide-to="2"></li>
</ol>
<!-- Wrapper for slides 轮播图片-->
<div class="carousel-inner" role="listbox">
<div class="item active">
<img src="upload/banner(1).dpg" alt="...">
<div class="carousel-caption">
这是我的图片1
</div>
</div>
<div class="item">
<img src="upload/banner1.dpg" alt="...">
<div class="carousel-caption">
这是我的图片2
</div>
</div>
<div class="item">
<img src="upload/banner2.dpg" alt="...">
<div class="carousel-caption">
这是我的图片3
</div>
</div>
</div>
<!-- Controls 左右箭头-->
<a class="left carousel-control" href="#carousel-example-generic" 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="#carousel-example-generic" role="button" data-slide="next">
<span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
<span class="sr-only">Next</span>
</a>
</div>
<!-- 从bootstrap复制的结构部分 结束-->
<script>
// 从bootstrap中复制的js部分
$('.carousel').carousel({
interval: 2000 //每隔两秒钟播放一次
})
</script>
</div>
</body>
</html>