如何創建一個簡單的三級jQuery Accordion菜單？

Question

你能幫我制作一個三級jQuery手風琴菜單嗎？

我有一個功能很好的兩級手風琴，但增加第三級已被證明是一個問題。

菜單HTML非常簡單，有三個級別的UL：

<ul class="accordion">
<li><a href="#">1</a>
    <ul>
        <li><a href="#">2</a>
            <ul>
                <li><a href="#">3</a></li>
                <li><a href="#">3</a></li>
                <li><a href="#">3</a></li>
            </ul>
        </li>
    </ul>
</li>
<li><a href="#">1</a>
    <ul>
        <li><a href="#">2</a>
            <ul>
                <li><a href="#">3</a></li>
                <li><a href="#">3</a></li>
                <li><a href="#">3</a></li>
            </ul>
        </li>
    </ul>
</li>
<li><a href="#">1</a>
    <ul>
        <li><a href="#">2</a>
            <ul>
                <li><a href="#">3</a></li>
                <li><a href="#">3</a></li>
                <li><a href="#">3</a></li>
            </ul>
        </li>
    </ul>
</li>
</ul>

調用的腳本是jquery 1.9.1和jquery ui 1.9.2，菜單使用accordion函數。

菜單開始於：

$(function() {
   $( ".accordion" ).accordion({    
      autoHeight: false,
      navigation: true,
      active: false
   });
});

但是當我添加第三級時，所有級別項都保持打開和可點擊狀態。

我花了相當多的時間閱讀Accordion文檔，但找不到制作第三級功能的方法。

當我嘗試雙重定位時，我讓菜單正常運行（正確滑動），但是我無法點擊第三級的鏈接！

$(function() {
   $( ".accordion, .accordion ul" ).accordion({ 
      autoHeight: false,
      navigation: true,
      active: false
   });
});

Answer 1

這是創建多級Jquery Accordion菜單的一種非常簡單的方法

JS Fiddle Link： http ： //jsfiddle.net/abidkhanweb/pwhz1zc4/

 ( function( $ ) { $( document ).ready(function() { $('#cssmenu li.has-sub>a').on('click', function(){ $(this).removeAttr('href'); var element = $(this).parent('li'); if (element.hasClass('open')) { element.removeClass('open'); element.find('li').removeClass('open'); element.find('ul').slideUp(); } else { element.addClass('open'); element.children('ul').slideDown(); element.siblings('li').children('ul').slideUp(); element.siblings('li').removeClass('open'); element.siblings('li').find('li').removeClass('open'); element.siblings('li').find('ul').slideUp(); } }); $('#cssmenu>ul>li.has-sub>a').append('<span class="holder"></span>'); (function getColor() { var r, g, b; var textColor = $('#cssmenu').css('color'); textColor = textColor.slice(4); r = textColor.slice(0, textColor.indexOf(',')); textColor = textColor.slice(textColor.indexOf(' ') + 1); g = textColor.slice(0, textColor.indexOf(',')); textColor = textColor.slice(textColor.indexOf(' ') + 1); b = textColor.slice(0, textColor.indexOf(')')); var l = rgbToHsl(r, g, b); if (l > 0.7) { $('#cssmenu>ul>li>a').css('text-shadow', '0 1px 1px rgba(0, 0, 0, .35)'); $('#cssmenu>ul>li>a>span').css('border-color', 'rgba(0, 0, 0, .35)'); } else { $('#cssmenu>ul>li>a').css('text-shadow', '0 1px 0 rgba(255, 255, 255, .35)'); $('#cssmenu>ul>li>a>span').css('border-color', 'rgba(255, 255, 255, .35)'); } })(); function rgbToHsl(r, g, b) { r /= 255, g /= 255, b /= 255; var max = Math.max(r, g, b), min = Math.min(r, g, b); var h, s, l = (max + min) / 2; if(max == min){ h = s = 0; } else { var d = max - min; s = l > 0.5 ? d / (2 - max - min) : d / (max + min); switch(max){ case r: h = (g - b) / d + (g < b ? 6 : 0); break; case g: h = (b - r) / d + 2; break; case b: h = (r - g) / d + 4; break; } h /= 6; } return l; } }); } )( jQuery ); 

 #cssmenu, #cssmenu ul, #cssmenu ul li, #cssmenu ul li a { margin: 0; padding: 0; border: 0; list-style: none; line-height: 1; display: block; position: relative; -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; } #cssmenu { width: 200px; font-family: Helvetica, Arial, sans-serif; color: #ffffff; } #cssmenu ul ul { display: none; } .align-right { float: right; } #cssmenu > ul > li > a { padding: 15px 20px; border-left: 1px solid #1682ba; border-right: 1px solid #1682ba; border-top: 1px solid #1682ba; cursor: pointer; z-index: 2; font-size: 14px; font-weight: bold; text-decoration: none; color: #ffffff; text-shadow: 0 1px 1px rgba(0, 0, 0, 0.35); background: #36aae7; background: -webkit-linear-gradient(#36aae7, #1fa0e4); background: -moz-linear-gradient(#36aae7, #1fa0e4); background: -o-linear-gradient(#36aae7, #1fa0e4); background: -ms-linear-gradient(#36aae7, #1fa0e4); background: linear-gradient(#36aae7, #1fa0e4); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15); } #cssmenu > ul > li > a:hover, #cssmenu > ul > li.active > a, #cssmenu > ul > li.open > a { color: #eeeeee; background: #1fa0e4; background: -webkit-linear-gradient(#1fa0e4, #1992d1); background: -moz-linear-gradient(#1fa0e4, #1992d1); background: -o-linear-gradient(#1fa0e4, #1992d1); background: -ms-linear-gradient(#1fa0e4, #1992d1); background: linear-gradient(#1fa0e4, #1992d1); } #cssmenu > ul > li.open > a { box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15), 0 1px 1px rgba(0, 0, 0, 0.15); border-bottom: 1px solid #1682ba; } #cssmenu > ul > li:last-child > a, #cssmenu > ul > li.last > a { border-bottom: 1px solid #1682ba; } .holder { width: 0; height: 0; position: absolute; top: 0; right: 0; } .holder::after, .holder::before { display: block; position: absolute; content: ""; width: 6px; height: 6px; right: 20px; z-index: 10; -webkit-transform: rotate(-135deg); -moz-transform: rotate(-135deg); -ms-transform: rotate(-135deg); -o-transform: rotate(-135deg); transform: rotate(-135deg); } .holder::after { top: 17px; border-top: 2px solid #ffffff; border-left: 2px solid #ffffff; } #cssmenu > ul > li > a:hover > span::after, #cssmenu > ul > li.active > a > span::after, #cssmenu > ul > li.open > a > span::after { border-color: #eeeeee; } .holder::before { top: 18px; border-top: 2px solid; border-left: 2px solid; border-top-color: inherit; border-left-color: inherit; } #cssmenu ul ul li a { cursor: pointer; border-bottom: 1px solid #32373e; border-left: 1px solid #32373e; border-right: 1px solid #32373e; padding: 10px 20px; z-index: 1; text-decoration: none; font-size: 13px; color: #eeeeee; background: #49505a; box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1); } #cssmenu ul ul li:hover > a, #cssmenu ul ul li.open > a, #cssmenu ul ul li.active > a { background: #424852; color: #ffffff; } #cssmenu ul ul li:first-child > a { box-shadow: none; } #cssmenu ul ul ul li:first-child > a { box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1); } #cssmenu ul ul ul li a { padding-left: 30px; } #cssmenu > ul > li > ul > li:last-child > a, #cssmenu > ul > li > ul > li.last > a { border-bottom: 0; } #cssmenu > ul > li > ul > li.open:last-child > a, #cssmenu > ul > li > ul > li.last.open > a { border-bottom: 1px solid #32373e; } #cssmenu > ul > li > ul > li.open:last-child > ul > li:last-child > a { border-bottom: 0; } #cssmenu ul ul li.has-sub > a::after { display: block; position: absolute; content: ""; width: 5px; height: 5px; right: 20px; z-index: 10; top: 11.5px; border-top: 2px solid #eeeeee; border-left: 2px solid #eeeeee; -webkit-transform: rotate(-135deg); -moz-transform: rotate(-135deg); -ms-transform: rotate(-135deg); -o-transform: rotate(-135deg); transform: rotate(-135deg); } #cssmenu ul ul li.active > a::after, #cssmenu ul ul li.open > a::after, #cssmenu ul ul li > a:hover::after { border-color: #ffffff; } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script> <div id='cssmenu'> <ul> <li><a href='#'><span>Home</span></a></li> <li class='active has-sub'><a href='#'><span>Products</span></a> <ul> <li class='has-sub'><a href='#'><span>Product 1</span></a> <ul> <li><a href='#'><span>Sub Product</span></a></li> <li class='last has-sub'><a href='#'><span>Sub Product</span></a> <ul> <li><a href='#'><span>Sub Product</span></a></li> <li class='last'><a href='#'><span>Sub Product</span></a></li> </ul> </li> </ul> </li> <li><a href='#'><span>Product 2</span></a></li> </ul> </li> <li><a href='#'><span>About</span></a></li> <li class='last'><a href='#'><span>Contact</span></a></li> </ul> </div> 

Answer 2

嘗試添加collapsible:true ，它可能適合您。

演示： http ： //jsfiddle.net/GCu2D/756/

$(function () {
    $("ul").accordion({
        autoHeight: false,
        navigation: true,
        active: false,
        collapsible: true
    });
});

Answer 3

我花了相當多的時間思考這個問題，最終解決方案變得更加簡單。

首先需要為所有UL元素啟動手風琴：

$(function() {
   $( ".accordion ul" ).accordion({    
      autoHeight: false,
      navigation: true,
      active: false,
   });
});

而不是破壞手風琴的水平與需要激活的鏈接（點擊激活）。

$( ".accordion ul ul ul" ).accordion( "destroy" );

就是這樣。 :-)