title: How to hide keyboard without animation (or speed up this animation)
body: <p>I have in my app Navigation Controller and Tool Bar. In Tool Bar is Bar Item which through action "show detail" shows Table View Controller. When I click on cancel and  this Table View is closed, but keyboard waits until Table View Controller is completely closed. I'd like to close keyboard together with Table View. </p>
  
  <p>This is my Action for Cancel button:</p>
  
  <pre><code>@IBAction func cancelTapped(sender: AnyObject) {
  
      self.nameTextField.becomeFirstResponder()
      self.caffeineTextField.becomeFirstResponder()
      self.dismissViewControllerAnimated(true, completion: nil)
  
  }
  </code></pre>