iOS Programming: The Big Nerd Ranch Guide

Silver Challenge: Cell Base Class

The need for a cell to forward an action message to its controller is pretty common. If your cell subclasses inherit this ability, then you don’t have to re-implement this functionality in each subclass. Make a UITableViewCell subclass as a cell base class that just implements the ability to forward action messages to a controller. Make HomepwnerItemCell a subclass of this base class. To test your base class further, create another subclass of it that has a UIStepper on it that will adjust the value of a BNRItem.

Figure 15.12  Cell class hierarchy