Summary

In this chapter, we learned about frameworks from many different angles. We talked about what they are, and how to add them to your projects. We looked at the biggest and most important iOS framework, UIKit, and learned about some of the most important system processes, like the view hierarchy. Then we looked at some more specific frameworks and added location data using CoreLocation.framework, and social media integration with the Social.framework. Now it's up to you to explore the documentation, and see what you can do with other frameworks in the iOS SDK!

If you haven't noticed yet, when we quit our app, none of our data gets saved, and we have to start over every time we launch the app. In the next chapter, we're going to dive into the world of CoreData, which will allow us to save and persist our data models across multiple sessions.