bootstrap框架提供了很多好用的javascript组件,可以很方便的实现常用的js效果,比如点击弹出一个div(modal)、下拉菜单、旋转木马(carousel或slider),非常适合前端不专业的后端程序员使用。下面就来看下modal和carousel如何使用。
modal即点击弹出div的效果,先看下效果图。
代码如下:
<!DOCTYPE html> <html lang="zh"> <head> <title>Bootstrap Example</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" rel="nofollow noopener noreferrer" href="../../vendor/bootstrap-3.3.7-dist/css/bootstrap.min.css"> <script src="../../vendor/jquery-3.0.0.min.js"></script> <script src="../../vendor/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script> </head> <body> <style> .prime-img { width: 100%; } .mw { width: 300px; } .box { margin: 150px auto; text-align: center; width: 150px; } </style> <div class="container"> <div class="box"> <h4>Modal Example</h2> <!-- Trigger the modal with a button --> <img data-toggle="modal" data-target="#myModal" class="prime-img" src="../../asset/images/p1.jpg" alt=""> <h4 class="box-desc">花</h4> </div> </div> <!-- Modal --> <div class="modal fade" id="myModal" role="dialog"> <div class="modal-dialog mw"> <!-- Modal content--> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal">×</button> <h4 class="modal-title">Modal</h4> </div> <div class="modal-body"> <img class="prime-img" src="../../asset/images/p1.jpg" alt=""> <div>红花娇艳</div> </div> <div class="modal-footer"> <button type="button" class="btn btn-default" data-dismiss="modal">Close</button> </div> </div> <!--End Modal content--> </div> </div> <!-- End Modal --> </div> </body> </html>
代码第7-9行是需要引入的css和js,可以看到bootstrap.min.js依赖于jQuery。
第32行中的 data-target="#myModal" 指定了要弹出div的id,第38行开始的id为myModal的div就是弹出的实现。其中可以看到弹出的div内容被包含在.modal-content中,而它又被分成了三个部分,.modal-header、.modal-body、.modal-header。具体在使用时不用拘泥于上面的写法,可以自己定义布局和样式。
再看carousel(也可以叫slider),即旋转木马,又叫幻灯片或滑块。
看下效果图,箭头可以控制:
按钮也可以控制
看下代码:
<!DOCTYPE html> <html lang="en"> <head> <title>Bootstrap Example</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" rel="nofollow noopener noreferrer" href="../../vendor/bootstrap-3.3.7-dist/css/bootstrap.min.css"> <script src="../../vendor/jquery-3.0.0.min.js"></script> <script src="../../vendor/bootstrap-3.3.7-dist/js/bootstrap.min.js"></script> <style> .carousel-inner > .item > img, .carousel-inner > .item > a > img { width: 70%; margin: auto; } </style> </head> <body> <div class="container"> <br> <div id="myCarousel" class="carousel slide" data-ride="carousel"> <!-- Indicators --> <ol class="carousel-indicators"> <li data-target="#myCarousel" data-slide-to="0" class="active"></li> <li data-target="#myCarousel" data-slide-to="1"></li> <li data-target="#myCarousel" data-slide-to="2"></li> <li data-target="#myCarousel" data-slide-to="3"></li> </ol> <!-- Wrapper for slides --> <div class="carousel-inner" role="listbox"> <div class="item active"> <img src="../../asset/images/p1.jpg" alt="花" width="460" height="345"> <div class="carousel-caption"> <h3>花</h3> <p>红花娇艳</p> </div> </div> <div class="item"> <img src="../../asset/images/p2.jpg" alt="树" width="460" height="345"> <div class="carousel-caption"> <h3>树</h3> <p>大木苍翠</p> </div> </div> <div class="item"> <img src="../../asset/images/p3.jpg" alt="海" width="460" height="345"> <div class="carousel-caption"> <h3>海</h3> <p>海浪汹涌</p> </div> </div> <div class="item"> <img src="../../asset/images/p4.jpg" alt="湖" width="460" height="345"> <div class="carousel-caption"> <h3>湖</h3> <p>晚湖静美</p> </div> </div> </div> <!-- Left and right controls --> <a class="left carousel-control" rel="nofollow noopener noreferrer" 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" rel="nofollow noopener noreferrer" 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> </div> </body> </html>
整个滑动内容和控制元素都被#myCarousel的div包起来,它分为三部分:第23行ol包起来的li组成的按钮,第31行开始到第65中是要滑动的3个.item元素,第67行后面是左右控制箭头。
是不是很简单,拿来就用。有时间再研究下如何把modal和carousel结合起来使用。
参考:http://getbootstrap.com/javascript/
本文学习使用bootstrap的modal和carousel到此结束。失败面前无所谓高手,在失败的面前,谁都是凡人。小编再次感谢大家对我们的支持!