ruby on rails 4でbootstrap3を適用
Gemfileに以下を追加
$ vi Gemfile
gem 'twitter-bootstrap3-rails'
$ bundle install
CSSとJSを追加する
$ rails generate bootstrap:install static
"Could not find a JavaScript runtime"のようなエラーが出る場合は以下のコマンドを実行
$ sudo apt-get install nodejs
レイアウトを作成(fluid->レスポンシブ対応)
$ rails g bootstrap:layout application fluid
グローバルメニューを追加、レスポンシブ
試しに静的ページを作って見てみる
$ rails generate controller DashBoard home
ブラウザでhttp://localhost:3000/dash_board/homeにアクセスするとレスポンシブページができていることが確認できる。試しにブラウザのサイズを小さくすると、ヘッダーが変化している。
ヘッダーをつける
$ vi app/views/layouts/application.html.erb
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title><%= content_for?(:title) ? yield(:title) : "YokohamaApp" %></title>
<%= csrf_meta_tags %>
<!-- Le HTML5 shim, for IE6-8 support of HTML elements -->
<!--[if lt IE 9]>
<script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/3.6.1/html5shiv.js" type="text/javascript"></script>
<![endif]-->
<%= stylesheet_link_tag "application", :media => "all" %>
<!-- For third-generation iPad with high-resolution Retina display: -->
<!-- Size should be 144 x 144 pixels -->
<%= favicon_link_tag 'apple-touch-icon-144x144-precomposed.png', :rel => 'apple-touch-icon-precomposed', :type => 'image/png', :sizes => '144x144' %>
<!-- For iPhone with high-resolution Retina display: -->
<!-- Size should be 114 x 114 pixels -->
<%= favicon_link_tag 'apple-touch-icon-114x114-precomposed.png', :rel => 'apple-touch-icon-precomposed', :type => 'image/png', :sizes => '114x114' %>
<!-- For first- and second-generation iPad: -->
<!-- Size should be 72 x 72 pixels -->
<%= favicon_link_tag 'apple-touch-icon-72x72-precomposed.png', :rel => 'apple-touch-icon-precomposed', :type => 'image/png', :sizes => '72x72' %>
<!-- For non-Retina iPhone, iPod Touch, and Android 2.1+ devices: -->
<!-- Size should be 57 x 57 pixels -->
<%= favicon_link_tag 'apple-touch-icon-precomposed.png', :rel => 'apple-touch-icon-precomposed', :type => 'image/png' %>
<!-- For all other devices -->
<!-- Size should be 32 x 32 pixels -->
<%= favicon_link_tag 'favicon.ico', :rel => 'shortcut icon' %>
<%= javascript_include_tag "application" %>
</head>
<body>
<nav class="navbar navbar-default" role="navigation">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<%= link_to "LifeLogApp", { :controller => :dash_board, :action => :home }, { :class => "navbar-brand"} %>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Link <span class="sr-only">(current)</span></a></li>
<li><a href="#">Link</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Dropdown <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li class="divider"></li>
<li><a href="#">Separated link</a></li>
<li class="divider"></li>
<li><a href="#">One more separated link</a></li>
</ul>
</li>
</ul>
<form class="navbar-form navbar-left" role="search">
<div class="form-group">
<input type="text" class="form-control" placeholder="Search">
</div>
<button type="submit" class="btn btn-default">Submit</button>
</form>
<ul class="nav navbar-nav navbar-right">
<li><a href="#">Link</a></li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-expanded="false">Dropdown <span class="caret"></span></a>
<ul class="dropdown-menu" role="menu">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li class="divider"></li>
<li><a href="#">Separated link</a></li>
</ul>
</li>
</ul>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
<div class="container">
<div class="row">
<div class="col-md-12">
<%= bootstrap_flash %>
<%= yield %>
</div>
</div><!--/row-->
<footer>
<p>© LifeLogApp 2015</p>
</footer>
</div> <!-- /container -->
</body>