javascript - Jquery下拉菜单点击总是打开

Question

我创建了一个下拉菜单点击，但它有点奇怪。当我单击按钮下拉菜单时，出现了下拉菜单。但是当我将光标移动到另一个(没有再次单击按钮下拉菜单)时，下拉菜单消失并且它变成了可悬停的下拉菜单而不是下拉菜单单击(抱歉我的英语不好)

单击下拉按钮并移动光标时，如何使下拉菜单单击始终出现？

(这是我的代码)

HTML

<aside class="sidebar">
      <ul>
        <li><a href="#"><i class="material-icons">home</i>Homepage</a></li>
        <li class="button_dropdown"><a href="javascript:void(0)" class="dropdown-toggle"><i class="material-icons">widgets</i>Events Organizer <i class="material-icons multi_menu">keyboard_arrow_right</i></a>
          <ul class="dropdown_menu">
            <li><a href="#">Create Events</a></li>
            <li><a href="#">List Events</a></li>
          </ul>
        </li>
        <li><a href="#"><i class="material-icons">people</i>Peserta Events</a></li>
      </ul>
    </aside>

CSS

aside.sidebar ul li ul.dropdown_menu {
  opacity: 0;
  visibility: hidden;
  height: auto;
  width: 100%;
  margin-top: -1px;
  position: absolute;
  transition: all 0.5s;
  border-left: 1px solid #2c3e50;
  background-color: #34495e;
}
aside.sidebar ul li ul.dropdown_menu.active {
  opacity: 1;
  visibility: visible;
  height: auto;
  width: 100%;
  background-color: #34495e;
  left: 100%;
  top: 0;
  transition: all 0.5s;
}

查询

  $(document).ready(function () {
        $(".button_dropdown").click(function () {
          $(".dropdown_menu").toggleClass("active");
        });
      });

Answer 1

我个人会使用 hover 而不是 click 作为子菜单。让我知道你是怎么处理这个的。在点击之前保持事件状态。

aside.sidebar ul li ul.dropdown_menu {
  display: none;
  height: auto;
  width: 100%;
  margin-top: -1px;
  position: absolute;
  transition: all 0.5s;
  border-left: 1px solid #2c3e50;
  background-color: #34495e;
  left:200px;
  top:0;
}

aside.sidebar ul li ul.dropdown_menu.active {
  display: block !important;
}

在这段代码中工作。

$(document).ready(function() {
  $('.button_dropdown').click(function() {
    $('.dropdown_menu').toggleClass('active');
  });
});

aside.sidebar ul li ul.dropdown_menu {
  display: none;
  height: auto;
  width: 100%;
  margin-top: -1px;
  position: absolute;
  transition: all 0.5s;
  border-left: 1px solid #2c3e50;
  background-color: #34495e;
  left:200px;
  top:0;
}

aside.sidebar ul li ul.dropdown_menu.active {
  display: block !important;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>


<aside class="sidebar">
  <ul>
    <li>Homepage</li>
    <li class="button_dropdown"><a href="javascript:void(0)" class="dropdown-toggle">Events Organizer</a>
      <ul class="dropdown_menu">
        <li>Create Events</li>
        <li>List Events</li>
      </ul>
    </li>
    <li>Peserta Events</li>
  </ul>
</aside>