在bootstrap-4中将导航项与右侧对齐 [英] Align nav-items to right side in bootstrap-4
问题描述
我刚刚切换到引导程序4，并重新处理了所有的html和scss以使其使用，但我似乎找不到如何在导航栏的右侧放置一组导航项的方法.这是我的导航栏代码:
I just switched to bootstrap 4 and reworking all my html and scss to work with it and I cant seem to find how to put a group of nav-items on the right side of the navbar. This is my navbar code:
<nav class="navbar navbar-full navbar-dark bg-primary">
<button class="navbar-toggler hidden-md-up" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation"></button>
<%= link_to "Living Recipe", recipes_path(sort_attribut: "popularity", sort_order: :desc), class: "navbar-brand" %>
<div class="collapse navbar-toggleable-sm" id="navbarResponsive">
<ul class="nav navbar-nav float-md-left">
<li class="nav-item">
<%= form_tag(recipes_path, :method => "get", id: "search-form", class: "form-inline") do %>
<%= text_field_tag :search, params[:search], placeholder: "Search Recipes", class: "form-control col-md-8" %>
<% end %>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="http://example.com" id="responsiveNavbarDropdown" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Browse</a>
<div class="dropdown-menu" aria-labelledby="responsiveNavbarDropdown">
<%= link_to "Popular", recipes_path(sort_attribute: "popularity", sort_order: :desc), class: "dropdown-item" %>
<%= link_to "Newest", recipes_path(sort_attribute: "created_at", sort_order: :desc), class: "dropdown-item" %>
<%= link_to "Most Updated", recipes_path(sort_attribute: "most_active", sort_order: :desc), class: "dropdown-item" %>
<%= link_to "Most Saved", recipes_path(sort_attribute: "save_count", sort_order: :desc), class: "dropdown-item" %>
</div>
</li>
</ul>
<ul class="nav navbar-nav float-md-right">
<% if user_signed_in? %>
<li class="dropdown">
<a class="nav-link dropdown-toggle" href="http://example.com" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
<%= current_user.displayname.present? ? "D-ring" : current_user.firstname %>
</a>
<div class="dropdown-menu" aria-labelledby="responsiveNavbarDropdown">
<%= link_to "Profile", user_path(current_user.id), class: "dropdown-item" %>
<%= link_to "Recipe Box", user_saved_recipes_path(current_user.id), class: "dropdown-item" %>
<%= link_to "Add Recipe", new_recipe_path, class: "dropdown-item" %>
<%= link_to "Submitted Recipes", user_path(current_user.id), class: "dropdown-item" %>
<%= link_to "Sign Out", destroy_user_session_path, :method => :delete, class: "dropdown-item" %>
</div>
</li>
<% else %>
<li class="nav-item">
<%= link_to "Create Account", '', data: {:'toggle' => 'modal', :'target' => '#signupModal'}, class: "nav-link" %>
</li>
<li class="nav-item">
<%= link_to "Login", '', data: {:'toggle' => 'modal', :'target' => '#loginModal'}, class: "nav-link" %>
</li>
<% end %>
</ul>
</div>
</nav>
这是它的外观截图
推荐答案
TL; DR:
为您想要在右侧的导航栏项创建另一个< ul class ="navbar-nav ml-auto"> . ml-auto 会将您的 navbar-nav 向右拉，而 mr-auto 会将其向左拉.
Create another <ul class="navbar-nav ml-auto"> for the navbar items you want on the right.
ml-auto will pull your navbar-nav to the right where mr-auto will pull it to the left.
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css"/>
<style>
/* Stackoverflow preview fix, please ignore */
.navbar-nav {
flex-direction: row;
}
.nav-link {
padding-right: .5rem !important;
padding-left: .5rem !important;
}
/* Fixes dropdown menus placed on the right side */
.ml-auto .dropdown-menu {
left: auto !important;
right: 0px;
}
</style>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-dark bg-primary rounded">
<a class="navbar-brand" href="#">Navbar</a>
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link">Left Link 1</a>
</li>
<li class="nav-item">
<a class="nav-link">Left Link 2</a>
</li>
</ul>
<ul class="navbar-nav ml-auto">
<li class="nav-item">
<a class="nav-link">Right Link 1</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"> Dropdown on Right</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action with a lot of text inside of an item</a>
</div>
</li>
</ul>
</nav>
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"></script>
</body>
</html>如您所见，在Stackoverflows预览框中添加了其他样式规则，以解决一些奇怪的问题.
您应该能够安全地忽略项目中的那些规则.
As you can see additional styling rules have been added to account for some oddities in Stackoverflows preview box.
You should be able to safely ignore those rules in your project.
从v4.0.0开始，这似乎是官方的方法.
As of v4.0.0 this seems to be the official way to do it.
编辑:我修改了帖子，以按照@Bruno的建议在导航栏的右侧添加一个下拉菜单.它需要反转其 left 和 right 属性.我在示例代码的开头添加了一个额外的CSS代码.
请注意，当您单击 Run code snippet 按钮时，该示例显示了移动版本.要查看桌面版本，必须单击 Expand snippet 按钮.
I modified the Post to include a dropdown placed on the right side of the navbar as suggested by @Bruno. It needs its left and right attributes to be inverted. I added an extra snippet of css to the beginning of the example code.
Please note, that the example shows the mobile version when you click the Run code snippet button. To view the desktop version you must click the Expand snippet button.
.ml-auto .dropdown-menu {
left: auto !important;
right: 0px;
}
将其包含在样式表中即可解决问题.
Including this in your stylesheet should do the trick.
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