Swift Programming: The Big Nerd Ranch Guide

Modeling a To-Do List

Recall from Chapter 26 that iOS and Mac applications usually follow a Model-View-Controller architecture. You have already created a view (your storyboard and UI elements) and a controller (your ViewController class). At this point, however, you do not have a model. Create a Cocoa Touch class by selecting File → New → File.... Select Source under iOS, then select Cocoa Touch Class (Figure 27.17).

Figure 27.17  Creating a new Cocoa Touch class

On the next screen, name your class TodoList, make it a subclass of NSObject, and make sure the language is set to Swift (Figure 27.18).

Figure 27.18  Creating ...