iOS Programming: The Big Nerd Ranch Guide, 6th Edition

8 Controlling Animations

The word “animation” is derived from a Latin word that means “the act of bringing to life.” In your applications, animations can smoothly bring interface elements onscreen or into focus, they can draw the user’s attention to an actionable item, and they can give clear indications of how your app is responding to the user’s actions. In this chapter, you will return to your Quiz app and use a variety of animation techniques to bring it to life.

Before updating Quiz, though, let’s take a look at what can be animated by looking at the documentation. To open the documentation, open Xcode’s Help menu and select Documentation and API Reference. This will open the documentation in a new window.

With the documentation ...