So far, we created and extended classes in the Playground. In fact, we could execute the same sample code in the Swift REPL. The Swift REPL is a read-eval-print loop, also known as an interactive language shell, where we can enter expressions or pieces of code, make Swift evaluate them, and prints the results.
Now, we will create a simple iOS app based on the Single View Application template with Xcode. We will recognize the usage of object-oriented code included in the template—that is, before we add components and code to the app. Then, we will take advantage of the GameRepository class we created in the previous chapter and use it to populate a UI element.
Navigate to File | New | Project… in Xcode. Then, navigate to iOS | Application on the left-hand side of the Choose a template for your new project dialog box. Select Single View Application on the right-hand side and click on Next, as shown in the following screenshot:
