创建类似于Google Plus的菜单 [英] Creating a menu similar to Google Plus

问题描述

我尝试实现类似Google Plus的自适应菜单，其中主窗口大小调整后，主菜单选项被添加到更多下拉菜单中。

我目前的菜单看起来像这样：

以下是代码：

  // JQuery 
 $（document）.ready（function（）{
 $（a.drop-menu）。 drop-menu'）toggle（）; 
}）; 
}）; 
 
<！ -  HTML  - > 
< ul id =navigation> 
< li>< a href =＃class =active>首页< / a>< / li> 
< li>< a href =＃>关于< / a>< / li& 
< li>< a href =＃>日历< / a>< / li> 
< li>< a href =＃>论坛< / a>< / li& 
< li>< a href =＃>图库< / a>< / li> 
< li>< a href =javascript :; class =drop-menu>更多< / a> 
< ul id =drop-menu> 
< li>< a href =＃>联系人< / a>< / li> 
< li>< a href =＃>联系人< / a>< / li> 
< / ul>< / li> 
< / ul> 
 
 / * CSS * / 
 #navigation {
 list-style-type：none; 
 padding：0px; 
 margin：0px; 
} 
 #navigation li {
 display：inline-block; 
} 
 #navigation li a：link，#navigation li a：visited，#navigation li a：active {
 display：block; 
 width：120px; 
 line-height：50px; 
 text-align：center; 
 font-weight：bold; 
 text-decoration：none; 
 background-color：＃27383F; 
 color：＃CCC8C0; 
} 
 #navigation li a：hover，#navigation li a.active {
 background-color：＃2C3C53; 
} 
 
＃drop-menu {
 display：none; 
 position：absolute; 
 padding：0px; 
 margin：0px; 
} 
＃drop-menu li {
 display：block; 
} 
  

，我相信这不是完美的结果..但是，相信你可以使用它作为你的起点..希望它有帮助..

I'm trying to achieve a responsive menu similar to Google Plus, where the main menu options are added to or removed from the "more" drop down as the window is resized.

The menu I have currently looks like this:

Here is the code:

// JQuery
$(document).ready(function() {
    $("a.drop-menu").click(function () {
        $('#drop-menu').toggle();
    });
});

<!-- HTML -->
<ul id="navigation">
  <li><a href="#" class="active">Home</a></li>
  <li><a href="#">About</a></li>
  <li><a href="#">Calendar</a></li>
  <li><a href="#">Forum</a></li>
  <li><a href="#">Gallery</a></li>
  <li><a href="javascript:;" class="drop-menu">More</a>
      <ul id="drop-menu">
        <li><a href="#">Contact</a></li>
        <li><a href="#">Contact</a></li>
      </ul></li>
</ul>

/* CSS */ 
#navigation {
  list-style-type: none;
  padding: 0px;
  margin: 0px;
}
#navigation li {
  display: inline-block;
}
#navigation li a:link, #navigation li a:visited, #navigation li a:active {
  display: block;
  width: 120px;
  line-height: 50px;
  text-align: center;
  font-weight: bold;
  text-decoration: none;
  background-color: #27383F;
  color: #CCC8C0;
}
#navigation li a:hover, #navigation li a.active {
  background-color: #2C3C53;
}

#drop-menu {
  display: none;
  position: absolute;
  padding: 0px;
  margin: 0px;
}
#drop-menu li {
  display: block;
}

JSFiddle

Currently, when the browser window is re-sized the menu options collapse as follows:

However, the below image is my desired result:

I'm wondering if there is a way to accomplish this without media queries? More specifically:

1. How can I dynamically detect whether the window size is large enough or too small to contain the li tags in the main navigation on a single line?
2. How do I swap the li tags between one menu and the other?

解决方案

By not using media-queries I think you can use jQuery $( window ).width(); which will return width of browser viewport.. It should be like this:

$(document).ready(function() {
    $("a.drop-menu").click(function () {
        $('#drop-menu').toggle();
    });
    if($( window ).width() < $("#navigation > li").length * (120 + 5)){
        //5px is the approximation of the gap between each <li>
        var html = $("#navigation > li").last().prev().html();
        $("#navigation > li").last().prev().remove();
        $("#drop-menu").append(html);
    }
    var bigger = $("#navigation > li").length + 1;
    var smaller = $("#navigation > li").length;
    $( window ).resize(function() {
      if($( window ).width() <= smaller * (120 + 5)){
          //5px is the approximation of the gap between each <li>
          var html = $("#navigation > li").last().prev().html();
          if(html != undefined){
              $("#navigation > li").last().prev().remove();
              $("#drop-menu").prepend("<li>"+html+"</li>");
              bigger = $("#navigation > li").length + 1;
              smaller = $("#navigation > li").length;
          }
      }
      if($( window ).width() >= bigger * (120 + 5)){
          //5px is the approximation of the gap between each <li>
          var html = $("#drop-menu > li").first().html();
          if(html != undefined){
              $("#drop-menu > li").first().remove();
              $("#navigation > li").last().before("<li>"+html+"</li>");
              bigger = $("#navigation > li").length + 1;
              smaller = $("#navigation > li").length;
          }
      };
    });
});

Check out this Fiddle, I believe it's not the perfect result.. But, I believe you can use it as your starting point.. Hope it helps..

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