title: How can I make a UIToolbar from a UINavigationController taller?
body: <p>I have a UINavigationController with a UINavigationBar at the top of the screen and a UIToolbar at the bottom. I want to make the toolbar a bit taller. Here's my code:</p>
  
  <pre><code>CGRect toolbarFrame = self.navigationController.toolbar.frame;
  toolbarFrame.size.height += 20;
  toolbarFrame.origin.y -= 20;
  self.navigationController.toolbar.frame = toolbarFrame;
  
  [self setToolbarItems:@[myButton]];
  self.navigationController.toolbarHidden = NO;
  </code></pre>
  
  <p>This seems like it should work and doesn't generate any errors/warnings, but the size of the toolbar stays at the defaults.</p>
  
  <p>Is there a way to change the size of a UINavigationController's UIToolbar, or should I just make a custom UIToolbar for this?</p>