javascript - 识别 Angular 引导下拉菜单何时关闭

Question

有没有办法识别 angular-bootstrap 下拉菜单已关闭？我想识别此事件并运行特定功能。

<div class="btn-group" dropdown is-open="status.isopen">
  <button type="button" class="btn btn-primary dropdown-toggle" dropdown-toggle ng-disabled="disabled">
    Button dropdown <span class="caret"></span>
  </button>
  <ul class="dropdown-menu" role="menu">
    <li><a href="#">Action</a></li>
    <li><a href="#">Another action</a></li>
    <li><a href="#">Something else here</a></li>
    <li class="divider"></li>
    <li><a href="#">Separated link</a></li>
  </ul>
</div> 

Answer 1

给你的父 div 添加一个 on-toggle 事件

<div class="btn-group" dropdown is-open="status.isopen" on-toggle="toggled(open)">

并在 Controller 中处理它

$scope.toggled = function(open) {
    if (open) {
        console.log('is open');
    } else console.log('close');
}