What We’ve Learned

In this chapter, we’ve taken a look at much of the functionality offered by the iOS SDK, beyond the things we were able to make use of in Pragmatic Podcasts. By learning about how the frameworks are organized and what goes where, we have a sense of what to expect when we start to bring in these features in the next app we write. Fortunately, many design patterns repeat themselves throughout Apple’s frameworks, so the idea of creating a closure for handling an asynchronous event is something we’ll use again, whether that’s an action to perform at the end of an animation, when your tweet gets posted, or when a video stops playing.

The next step, naturally, is up to you. What will you create? A utility? A game? Something that uses the device’s location in an interesting way? Or maybe something to help users take care of their health. There are endless possibilities.

We can’t wait to see what you come up with.