我正在尝试构建扩展/折叠菜单。
我有一个主导航栏,里面有3个子菜单。默认情况下,子菜单的高度为50px - 但一旦点击,此高度将变为200px。再次单击它以使其折叠回原始的50px。
让我烦恼的是当我扩展subMenu1时,我继续扩展subMenu2 - subMenu1保持扩展,我希望它在第二个子菜单被选中时崩溃。
这是我的代码;
<!DOCTYPE html>
<html>
<head>
<title>projectFive</title>
<link rel="stylesheet" href="css/style.css" type="text/css">
</head>
<body>
</div>
</div>
<div class="sideMenu">
<div class="sideButton">☰</div>
<div class="profilePic"></div>
<div class="menuButtonHolder">
<div class="menuButton">
<a class="menuButtonIcon" href="#"><img src="./img/rightArrow.png" id="arrow" alt=""><span>link</span></a>
<div class="subMenu"></div>
</div><!-- ending toggle button -->
<div class="menuButton">
<a class="menuButtonIcon" href="#"><img src="./img/rightArrow.png" id="arrow" alt=""><span>link</span></a>
<div class="subMenu"></div>
</div><!-- ending toggle button -->
<div class="menuButton">
<a class="menuButtonIcon" href="#"><img src="./img/rightArrow.png" id="arrow" alt=""><span>link</span></a>
<div class="subMenu"></div>
</div><!-- ending toggle button -->
</div> <!-- ending menu button holder -->
</div>
<!-- ending side menu
-->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js" type="text/javascript"></script>
<script src="my.js" type="text/javascript"></script>
</body>
</html>
和jQuery:
$(document).ready(function(){
var $menuButton = $(".sideButton");
var $menuBar = $(".sideMenu");
var $profilePic = $(".profilePic");
$menuButton.click(function(){
if ($(this).hasClass("active")){
$profilePic.fadeOut(200);
$profilePic.css({"width": "25px", "height": "25px", "transition": "width 0.3s linear, height 0.3s linear"}, 500);
$(".menuButtonHolder").css({
"top": "1000px",
"transition": "top .4s ease-out"});
$menuBar.animate({width: "60px"}, 500);
$menuBar.css({"background-color": "rgba(0,0,0,0.9)"});
$menuButton.removeClass("active");
} else {
$profilePic.fadeIn(500);
$profilePic.css({"width": "150px", "height": "150px", "transition": "width 0.7s linear, height 0.7s linear"}, 500);
$(".menuButtonHolder").css({
"top": "0px",
"transition": "top .8s ease-out"});
$menuBar.animate({width: "300px"}, 800);
$menuBar.css({"background-color": "rgba(0,0,0,0.5)", "transition": "background-color .5s linear"});
$menuButton.addClass("active");
}
});
$(".menuButtonIcon").click(function(){
if ($(this).hasClass("filter")){
$(this).find("#arrow").css({"-webkit-transform": "rotate(90deg)", "transition": "transform 0.5s ease-out"});
$(this).css({"height": "50px", "transition": "height 0.5s ease-out"});
$(this).removeClass("filter");
} else {
$(this).find("#arrow").css({"-webkit-transform": "rotate(180deg)", "transition": "transform 0.5s ease-out"});
$(this).css({"height": "200px", "transition": "height 0.5s ease-out"});
$(".menuButtonIcon").addClass("filter");
}
});
});
我想知道什么功能或用什么来确保一旦点击任何子菜单 - 如果有一个子菜单被扩展,兄弟姐妹会崩溃。
我希望我的代码有足够的信息给你们一个想法。
提前致谢!
答案 0 :(得分:1)
尝试将子菜单折叠逻辑移动到单独的函数中,并使用click事件函数中的相关元素调用它,如下所示:
function collapse($elements) {
$elements.removeClass("filter");
$elements.find("#arrow").css({"-webkit-transform": "rotate(90deg)", "transition": "transform 0.5s ease-out"});
$elements.css({"height": "50px", "transition": "height 0.5s ease-out"});
}
$(".menuButtonIcon").click(function(){
if ($(this).hasClass("filter")){
collapse($(this));
} else {
$(this).find("#arrow").css({"-webkit-transform": "rotate(180deg)", "transition": "transform 0.5s ease-out"});
$(this).css({"height": "200px", "transition": "height 0.5s ease-out"});
$(this).addClass("filter");
collapse($(".menuButtonIcon").not($(this)));
}
});
如果它具有“过滤器”类,则会折叠菜单项,并且如果不包含单击的菜单项,则会折叠所有 其他项目。
以下是其实际应用的粗略示例:http://codepen.io/nrbernard/pen/doqwLr