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Marcus S. Zarra's user avatar
Marcus S. Zarra's user avatar
Marcus S. Zarra's user avatar
Marcus S. Zarra
Senior iOS Developer
  • Member for 15 years, 10 months
  • Last seen this week
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About
  • Author of the book "Core Data" for the Pragmatic Programmers.
  • Author of the book "Core Data in Swift" for the Pragmatic Programmers.
  • Co-author of the book "Core Animation" for Addison Wesley.
  • Co-creator of "Cocoa Is My Girlfriend".
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Top posts
View all questions, answers, and articles
167
What are best practices for validating email addresses on iOS 2.0
Apr 28, 2009
148
How to Deal with Temporary NSManagedObject instances?
Jul 15, 2010
102
JSON and Core Data on the iPhone
Mar 2, 2010
83
Core Data - Storing Images (iPhone)
Jan 20, 2010
70
How can I take an UIImage and give it a black border?
Aug 31, 2009
63
Objective-C: Asynchronously populate UITableView - how to do this?
Sep 20, 2011
57
How do I copy or move an NSManagedObject from one context to another?
Jun 9, 2010
56
CoreData : store images to DB or not?
Apr 4, 2010
44
An -observeValueForKeyPath:ofObject:change:context: message was received but not handled
Nov 9, 2010
40
How to get managedObjectContext for viewController other than getting it from appDelegate?
Jan 10, 2014