title: iOs Modal transitions like Mailboxapp
body: <p>I started developing an iOs app for my employers some days ago. They would like to get a transition flow like the MailBox App. I already figured out how to do the split menu on the left but I can't figure out how to do the modal transition that is coming from the back when you tap an e-mail. Once you are in an e-mail you can slide back to the inbox. Is it possible that this is achieved by a PageViewController ? If not does anyone know how to achieve an effect like that ?</p>
  
  <p>Thank you very much :)</p>