O'Reilly logo

iOS Programming: The Big Nerd Ranch Guide, 6th Edition by Aaron Hillegass, Christian Keur

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

UITableView’s Data Source

The process of providing rows to a UITableView in Cocoa Touch (the collection of frameworks used to build iOS apps) is different from the typical procedural programming task. In a procedural design, you tell the table view what it should display. In Cocoa Touch, the table view asks another object – its dataSource – what it should display. In this case, the ItemsViewController is the data source, so it needs a way to store item data.

You are going to use an array to store the Item instances, but with a twist. The array that holds the Item instances will be abstracted into another object – an ItemStore (Figure 10.6).

Figure 10.6  Homepwner object diagram

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required