June 2016
Intermediate to advanced
214 pages
5h 40m
English
Content preview from Core Data in SwiftBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 3iOS: NSFetchedResultsController
The NSFetchedResultsController was introduced alongside Core Data when the framework was added to iOS with version 3.0. Since its introduction, developers have settled into a love–hate relationship with this class. When it’s used in the way it was intended, it works extremely well. The hate part comes in when developers attempt to use the NSFetchedResultsController outside of its intended niche—that’s when things start to fall apart quite quickly. The NSFetchedResultsController is designed to be the glue between Core Data and the UITableView. When Core Data was first added to iOS, the Core Data team realized that there was a significant amount of work to get Core Data and table views talking well. They ...
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