Does this collection operator method also work on the iPhone?
- by dontWatchMyProfile
NSNumber *salaryOverhead = [anEmployee valueForKeyPath:@"[email protected]"];
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Does Core Data take appropriate action automatically when there's a Low Memory Warning?
- by dontWatchMyProfile
Does it turn some managed objects into faults when there's a Low Memory Warning? Or must we do that manually by calling the -refreshObjects:mergeChanges: method which puts the affected managed objects on diet quickly? And...would that actually hurt? What if these objects are currently used by an NSFetchedResultsController to show up on a table view?Read the article
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How to align an 90 deg rotated label perfectly with the pixels?
- by dontWatchMyProfile
When rotating a label, the text is rendered very ugly. Is there an convenient way to get the label aligned with the pixels? Maybe there is some way of rounding the transform of the view, so that it isn't misaligned?Read the article
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How to convert a string into an NSDate?
- by dontWatchMyProfile
Let's say I have something like 30-10-2025 12:53, how could I convert that to an NSDate? I guess there's some class that takes this plus an format string that tells it how the date looks as a string, so it can parse it... where must I look?Read the article
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Which one should I prefer for relasing my custom non-managed properties?
- by dontWatchMyProfile
-willTurnIntoFault or -didTurnIntoFault? I guess it's stupid to release properties in both of them, so I must choose one. Which is the best?Read the article
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What exactly is an "extension" in objective-c?
- by dontWatchMyProfile
It's something different than a category, right?Read the article
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What's the consequence when Core Data detects an optimistic locking failure when trying to save?
- by dontWatchMyProfile
I get it: When a managed object context saves, the snapshots of all edited objects are compared against the values in the persistent store to see if the PS has changed since the snapshot was made. If it did change, then there's a conflict and optimistic locking failed, according to Apple. But now, what's the consequence of this? What happens next? What are my options in this case?Read the article
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What happens when a fault is "fired"?
- by dontWatchMyProfile
What happens when a fault is "fired"?Read the article
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What's the staleness interval good for?
- by dontWatchMyProfile
When should I care about the staleness interval in Core Data?Read the article
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How does Undo work?
- by dontWatchMyProfile
How does undo work? Does it copy all the managed objects every time any of the values change? Or does it only copy the actual changes together with an information which objects were affected? Is that heavy or lightweight?Read the article
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Is Class an object, or is it a struct?
- by dontWatchMyProfile
Is Class an object, or is it a struct?Read the article
