Chapter 4. Structural Overview of an iOS App

Now that we have a working iOS app, we can look more closely at many of the details in the source code for that app and the project. Xcode will again be your gateway to the inner workings. Although the title of this chapter doesn’t mention object-oriented programming (OOP), this chapter is where you will learn the fundamentals—especially the terminology, which is often quite different from what you’ve seen in the JavaScript world. Despite the differences in naming, you will recognize some familiar concepts.