title: UIStoryboardSegue, hide sourceviewcontroller
body: <p>I have an application where it shows UICollectionViewController (v1) on launching. If I double tap on a cell, a seque (S) is performed and another view controller (v2) is opened. When the back is tapped in v2, it comes back to collection view, v1. This all works fine. </p>
  
  <p>Now I have a requirement to open the app from thirdPartyApp (like from Mail). If I open a file from Mail, it should directly open the v2. I am now performing the seque S in the app delegate, it is showing v1 and then v2. Is there any way to show the v2 directly from Mail, and show v1 on hitting back button? </p>
  
  <p>Thanks</p>