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Core Data in Swift
book

Core Data in Swift

by Marcus S. Zarra
June 2016
Intermediate to advanced
214 pages
5h 40m
English
Pragmatic Bookshelf
Content preview from Core Data in Swift

Building Our Own: MSZContextWatcher

Since the introduction of the NSFetchedResultsController, I’ve run into numerous situations in which I wanted to use its ability to detect data changes even when I wasn’t using a UITableView. Building a user interface for an iPad where three different entities are being displayed at once is a situation that begs for some kind of watcher to notify the user interface when the data has changed. Needing to watch not just a single type of entity but also relationships associated with that entity is another place where an observer is useful. Frequently I’d attempt to use an NSFetchedResultsController and run into one problem or another that made it more difficult than it needed to be. This led me to investigate ...

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Publisher Resources

ISBN: 9781680502046Errata Page