April 2020
Intermediate to advanced
528 pages
15h 40m
English
Content preview from iOS Programming: The Big Nerd Ranch Guide, 7th Edition
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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 9.6).
Figure 9.6 LootLogger object diagram
If an object wants to see all the items, ...
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