本章将讲解 Bootstrap 进度条。在本教程中,您将看到如何使用 Bootstrap 创建加载、重定向或动作状态的进度条。
Bootstrap 进度条使用 CSS3 过渡和动画来获得该效果。Internet Explorer 9 及之前的版本和旧版的 Firefox 不支持该特性,Opera 12 不支持动画。
提示:有关CSS3 过渡和动画的详细内容请参考“CSS3 过渡”和“CSS3 动画”部分!
创建一个基本的进度条的步骤如下:
添加一个带有 class .progress 的 <div>。
接着,在上面的 <div> 内,添加一个带有 class .progress-bar 的空的 <div>。
添加一个带有百分比表示的宽度的 style 属性,例如 style="60%"; 表示进度条在 60% 的位置。
让我们看看下面的实例:
<!DOCTYPE html><html><head>
<title>Bootstrap 实例 - 进度条</title>
<link href="//cdn.bootcss.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="stylesheet">
<script src="//cdn.bootcss.com/jquery/2.1.1/jquery.min.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//cdn.bootcss.com/bootstrap/3.3.6/js/bootstrap.min.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script></head><body><div class="progress">
<div class="progress-bar" role="progressbar" aria-valuenow="60"
aria-valuemin="0" aria-valuemax="100" style="width: 40%;">
<span class="sr-only">40% 完成</span>
</div></div></body></html>
结果如下所示:
创建不同样式的进度条的步骤如下:
添加一个带有 class .progress 的 <div>。
接着,在上面的 <div> 内,添加一个带有 class .progress-bar 和 class progress-bar-* 的空的 <div>。其中,* 可以是 success、info、warning、danger。
添加一个带有百分比表示的宽度的 style 属性,例如 style="60%"; 表示进度条在 60% 的位置。
让我们看看下面的实例:
<!DOCTYPE html><html><head>
<title>Bootstrap 实例 - 交替的进度条</title>
<link href="//cdn.bootcss.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="stylesheet">
<script src="//cdn.bootcss.com/jquery/2.1.1/jquery.min.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//cdn.bootcss.com/bootstrap/3.3.6/js/bootstrap.min.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script></head><body><div class="progress">
<div class="progress-bar progress-bar-success" role="progressbar"
aria-valuenow="60" aria-valuemin="0" aria-valuemax="100"
style="width: 90%;">
<span class="sr-only">90% 完成(成功)</span>
</div></div><div class="progress">
<div class="progress-bar progress-bar-info" role="progressbar"
aria-valuenow="60" aria-valuemin="0" aria-valuemax="100"
style="width: 30%;">
<span class="sr-only">30% 完成(信息)</span>
</div></div><div class="progress">
<div class="progress-bar progress-bar-warning" role="progressbar"
aria-valuenow="60" aria-valuemin="0" aria-valuemax="100"
style="width: 20%;">
<span class="sr-only">20% 完成(警告)</span>
</div></div><div class="progress">
<div class="progress-bar progress-bar-danger" role="progressbar"
aria-valuenow="60" aria-valuemin="0" aria-valuemax="100"
style="width: 10%;">
<span class="sr-only">10% 完成(危险)</span>
</div></div></body></html>
结果如下所示:
创建一个条纹的进度条的步骤如下:
添加一个带有 class .progress 和 .progress-striped 的 <div>。
接着,在上面的 <div> 内,添加一个带有 class .progress-bar 和 class progress-bar-* 的空的 <div>。其中,* 可以是 success、info、warning、danger。
添加一个带有百分比表示的宽度的 style 属性,例如 style="60%"; 表示进度条在 60% 的位置。
让我们看看下面的实例:
<!DOCTYPE html><html><head>
<title>Bootstrap 实例 - 条纹的进度条</title>
<link href="//cdn.bootcss.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="stylesheet">
<script src="//cdn.bootcss.com/jquery/2.1.1/jquery.min.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//cdn.bootcss.com/bootstrap/3.3.6/js/bootstrap.min.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script></head><body><div class="progress progress-striped">
<div class="progress-bar progress-bar-success" role="progressbar"
aria-valuenow="60" aria-valuemin="0" aria-valuemax="100"
style="width: 90%;">
<span class="sr-only">90% 完成(成功)</span>
</div></div><div class="progress progress-striped">
<div class="progress-bar progress-bar-info" role="progressbar"
aria-valuenow="60" aria-valuemin="0" aria-valuemax="100"
style="width: 30%;">
<span class="sr-only">30% 完成(信息)</span>
</div></div><div class="progress progress-striped">
<div class="progress-bar progress-bar-warning" role="progressbar"
aria-valuenow="60" aria-valuemin="0" aria-valuemax="100"
style="width: 20%;">
<span class="sr-only">20% 完成(警告)</span>
</div></div><div class="progress progress-striped">
<div class="progress-bar progress-bar-danger" role="progressbar"
aria-valuenow="60" aria-valuemin="0" aria-valuemax="100"
style="width: 10%;">
<span class="sr-only">10% 完成(危险)</span>
</div></div></body></html>
结果如下所示:
创建一个动画的进度条的步骤如下:
添加一个带有 class .progress 和 .progress-striped 的 <div>。同时添加 class .active。
接着,在上面的 <div> 内,添加一个带有 class .progress-bar 的空的 <div>。
添加一个带有百分比表示的宽度的 style 属性,例如 style="60%"; 表示进度条在 60% 的位置。
这将会使条纹具有从右向左的运动感。
让我们看看下面的实例:
<!DOCTYPE html><html><head>
<title>Bootstrap 实例 - 动画的进度条</title>
<link href="//cdn.bootcss.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="stylesheet">
<script src="//cdn.bootcss.com/jquery/2.1.1/jquery.min.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//cdn.bootcss.com/bootstrap/3.3.6/js/bootstrap.min.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script></head><body><div class="progress progress-striped active">
<div class="progress-bar progress-bar-success" role="progressbar"
aria-valuenow="60" aria-valuemin="0" aria-valuemax="100"
style="width: 40%;">
<span class="sr-only">40% 完成</span>
</div></div></body></html>
结果如下所示:
您甚至可以堆叠多个进度条。把多个进度条放在相同的 .progress 中即可实现堆叠,如下面的实例所示:
<!DOCTYPE html><html><head>
<title>Bootstrap 实例 - 堆叠的进度条</title>
<link href="//cdn.bootcss.com/bootstrap/3.3.6/css/bootstrap.min.css" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="external nofollow" target="_blank" rel="stylesheet">
<script src="//cdn.bootcss.com/jquery/2.1.1/jquery.min.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script>
<script src="//cdn.bootcss.com/bootstrap/3.3.6/js/bootstrap.min.js" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" ></script></head><body><div class="progress">
<div class="progress-bar progress-bar-success" role="progressbar"
aria-valuenow="60" aria-valuemin="0" aria-valuemax="100"
style="width: 40%;">
<span class="sr-only">40% 完成</span>
</div>
<div class="progress-bar progress-bar-info" role="progressbar"
aria-valuenow="60" aria-valuemin="0" aria-valuemax="100"
style="width: 30%;">
<span class="sr-only">30% 完成(信息)</span>
</div>
<div class="progress-bar progress-bar-warning" role="progressbar"
aria-valuenow="60" aria-valuemin="0" aria-valuemax="100"
style="width: 20%;">
<span class="sr-only">20% 完成(警告)</span>
</div></div></body></html>
结果如下所示: