title: iOS - alertView shouldEnableFirstButton
body: <p>I want the user to not be able to click the cancel button on UIAlertView, yet I still want it to be there, but shaded out. I know a <code>shouldEnableFirstButton</code> function is there but it doesn't involve cancel button. Do you have any idea how to do it?</p>
  
  <p>Thanks.</p>