O'Reilly logo

Swift Programming: The Big Nerd Ranch Guide by John Gallagher, Matthew Mathias

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Silver Challenge

Add functionality to the app to allow a user to view a contact’s information. A user should be able to tap on a row in ContactsViewController, and that should push a new UIViewController onto the current UINavigationController’s stack. Call this new view controller ExistingContactViewController and implement it in Swift.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required