iOS Animation Tutorial: Custom View Controller Presentation Transitions

This is an abridged chapter from our book iOS Animations by Tutorials, which has been completely updated for Swift 4 and iOS 11. This tutorial is presented as part of our iOS 11 Launch Party — enjoy! Whether you’re presenting the camera view controller, the address book, or one of your own custom-designed modal screens, you call the same UIKit method every time: present(_:animated:completion:). Th