title: Swift - size of textfield on UIAlertcontrller
body: <p>I want to increase the initial height of UITextField on UIAlertController.
  Here is my code:</p>
  
  <pre><code>let reportAlertController = UIAlertController(title: "Report", message: "If you find anything to report, please write it in the text box below and press send. To cancel report, press cancel.", preferredStyle: .Alert)
  reportAlertController.addTextFieldWithConfigurationHandler({ (tf) -&gt; Void in
    tf.frame.size.height = 1500
    tf.placeholder = "Report detail(s) here"
  })
  
  
  reportAlertController.addAction(UIAlertAction(title: "Send", style: UIAlertActionStyle.Default, handler: nil))
  reportAlertController.addAction(UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Default, handler: nil))
  presentViewController(reportAlertController, animated: true, completion: nil)
  </code></pre>
  
  <p>The thing is that even I reassign the frame size, it is not reflected in alert. Any help will be appreciated.</p>
  
  <p>Edited:
  Or I want to know the way to expand the height as it reaches the end of width.</p>