title: Change UIControlEvent of UIAlertController to TouchDown?
body: <p>I'm looking to change the UIControl event of my button on my UIAlertController to activate on Touch-down. To do this, I need to change the UIControlEvent to touch-down.</p>
  
  <p>There are a few ways of doing this that I can think of...</p>
  
  <ol>
  <li>Somehow gain access to the UIAlertAction's UIControlEvent and set it
  to touch-down</li>
  <li>Gain access to the UIAlertController's buttons and add a target which I can then easily set the UIControlEvent</li>
  <li>Subclass the UIAlertController and override the touchesBegan method</li>
  </ol>
  
  <p>Does anyone know how to implement either of the first 2 methods?</p>