title: iOS. Add to Passbook with Alert Dialog
body: <p>Please, advise how I can create alert dialog, similar to Starbucks, shown in the image, when add to Apple Passbook.</p>
  
  <p><img src="https://i.stack.imgur.com/bRsTI.jpg" alt="Starbucks alert dialog"></p>
  
  <p>I've tried to use <code>PKAddPassesViewController</code>, but failed, as it wasn't clear how to get alert dialog.</p>