title: iOS - Adding view under navigation bar
body: <p>I can't add a view under <code>UINavigationBar</code> (Navigation Controller), like the Facebook app. Any ideas on how I can do this?</p>
  
  <p><img src="https://i.stack.imgur.com/7DVyB.png" alt="enter image description here"></p>
  
  <p>Best,
  Andrea</p>