title: Add subview using storyboard without external xib
body: <p>I'm learning Objective-C.</p>
  
  <p>I have a problem with new storyboard feature. I would initialize a subview inside a main view with xib. </p>
  
  <p>Without using storyboard, I could do it using:</p>
  
  <pre><code>controller = [[UIViewController alloc]initWithNibName:@"NibName" bundle:nil];
  [self.view addSubview:controller.view];
  </code></pre>
  
  <p>Now, I wouldn't use an external xib, but I want manage a view in a class and use it like a subview in another class. </p>
  
  <p>I know that is possible use a xib and use a similiar code to load it, but it must be out the storyboard. </p>