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Bootstrap 下拉菜單事件
2018-03-03 10:59 更新
Bootstrap提供各種附加到下拉插件的事件，分別是：
- show.bs.dropdown：當(dāng)手柄被點(diǎn)擊時(shí)觸發(fā)；或下拉手柄收到打開隱藏菜單的請(qǐng)求
- shown.bs.dropdown：在菜單顯示后觸發(fā)
- hide.bs.dropdown：在關(guān)閉菜單之前觸發(fā)
- hidden.bs.dropdown：當(dāng)菜單關(guān)閉時(shí)觸發(fā)
顯示和隱藏事件發(fā)生在完成請(qǐng)求之前而顯示的和隱藏的事件發(fā)生在請(qǐng)求完成時(shí)。
<!DOCTYPE html>
<html lang="en">
<head>
<script type="text/javascript"
src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<link rel="stylesheet"
href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<link rel="stylesheet"
href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap-theme.min.css">
<script
src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script
src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$(".myDropdownHandle").dropdown("toggle");
});
</script>
</head>
<body style="margin:30px">
<div class="dropdown" id="myDropdown">
<a class="myDropdownHandle" data-toggle="dropdown" data-target="#" href="#">
Dropdown <span class="caret"></span>
</a>
<ul class="dropdown-menu">
<li><a href="#">Link 1</a></li>
<li><a href="#">Link 2</a></li>
<li><a href="#">Link 3</a></li>
<li><a href="#">Link 4</a></li>
</ul>
</div>
<script type="text/javascript">
$(document).ready(function(){
$("#myDropdown").on("show.bs.dropdown", function () {
console.log("Opening dropdown..");
});
$("#myDropdown").on("shown.bs.dropdown", function () {
console.log("Dropdown opened..");
});
$("#myDropdown").on("hide.bs.dropdown", function () {
console.log("Hiding dropdown..");
});
$("#myDropdown").on("hidden.bs.dropdown", function () {
console.log("Dropdown hidden..");
});
});
</script>
</body>
</html>$().dropdown('toggle')
$().dropdown('toggle')方法可以切換給定的導(dǎo)航欄或標(biāo)簽式導(dǎo)航的菜單。
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/css/bootstrap-theme.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$(".dropdown-toggle").dropdown();
});
</script>
<style type="text/css">
.bs-example{
margin: 20px;
}
</style>
</head>
<body>
<div class="bs-example">
<div class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown <b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li class="divider"></li>
<li><a href="#">Separated link</a></li>
</ul>
</div>
</div>
</body>
</html>以上內(nèi)容是否對(duì)您有幫助：
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