该选项卡将要显示时,将触发show.bs.event。
使用nav-tabs类显示选项卡-
<ul class="nav nav-tabs"> <li class="active"><a href="#home">Home</a></li> <li><a href="#two">Java</a></li> <li><a href="#three">CSS</a></li> <li><a href="#four">Bootstrap</a></li> <li><a href="#five">jQuery</a></li> </ul>
之后,您需要使用show.bs.tab类在单击选项卡之后但在显示该选项之前生成警报-
$('.nav-tabs a').on('show.bs.tab', function(){ alert('New tab will be visible now!'); });
您可以尝试运行以下代码来实现show.bs.tab事件-
<!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" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css"> <script src="https://cdn.staticfile.org/jquery/3.3.1/jquery.min.js"></script> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script> </head> <body> <div class="container"> <h2>Learn</h2> <ul class="nav nav-tabs"> <li class="active"><a href="#home">Home</a></li> <li><a href="#two">Java</a></li> <li><a href="#three">CSS</a></li> <li><a href="#four">Bootstrap</a></li> <li><a href="#five">jQuery</a></li> </ul> <div class="tab-content"> <div id="home" class="tab-pane fade in active"> <h3>Home</h3> <p>This is demo text!</p> </div> <div id="two" class="tab-pane fade"> <h3>PHP</h3> <p>This is demo text!</p> </div> <div id="three" class="tab-pane fade"> <h3>C#.NET</h3> <p>This is demo text!</p> </div> <div id="four" class="tab-pane fade"> <h3>Ruby</h3> <p>This is demo text!</p> </div> <div id="five" class="tab-pane fade"> <h3>HTML5</h3> <p>This is demo text!</p> </div> </div> </div> <script> $(document).ready(function(){ $(".nav-tabs a").click(function(){ $(this).tab('show'); }); $('.nav-tabs a').on('show.bs.tab', function(){ alert('New tab will be visible now!'); }); $('.nav-tabs a').on('shown.bs.tab', function(){ alert('New tab is now visible!'); }); $('.nav-tabs a').on('hide.bs.tab', function(e){ alert('Previous tab will hide now!'); }); $('.nav-tabs a').on('hidden.bs.tab', function(){ alert('Previous Tab is hidden now!'); }); }); </script> </body> </html>