title: How can I reload a UIViewController with button action?
body: <p>I use a core data array and choose one question from that.</p>
  
  <p>When I choose a question, I use a random number.</p>
  
  <p>When a user hits the button to answer the question, I get a random number again to make a new question, so user can repeat answering.</p>
  
  <p>I think it's possible if tapping on the answer button can reload the page.</p>
  
  <p>How can I do that?</p>
  
  <p>I try many ways but that way have problems.</p>
  
  <pre><code>@IBAction func buttonPressed(sender: AnyObject) {
  }
  </code></pre>