key-value-observing

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Using KVO to reload data in UITableView

I\'ve been expanding my horizons recently and am trying to start utilizing KVO more in my programming.[详细]

2023-04-12 16:41 分类：问答
NSInternalInconsistencyException when using KVO

I\'m trying to use a KVO example I got from an iPhone tutorial book, but get this exception Terminating app due to uncaught exception \'NSInternalInconsistencyException\', reason: \'<UINavigationC[详细]

2023-04-09 15:02 分类：问答
How to do perfect KVO for NSManagedObject?

Pe开发者_如何学JAVArfect KVO here includes two parts: add observer correctly and remove observer correctly.[详细]

2023-04-09 05:07 分类：问答
ways to bind model classes in Objective-C

(I hope someone will correct my terminology if I get it wrong -- I\'m still sorting out terms) I have a series of classes in my model. I need to get some data from a url (SatDataGetter) and combine i[详细]

2023-04-09 01:11 分类：问答
Key-value observing on UIButton's State

UIButton has a state property, which appears to be KVO compliant by all accounts开发者_运维技巧 and there is no documentation to indicate otherwise.However, when I added an observer to a UIButton\'s s[详细]

2023-04-08 10:14 分类：问答
Clean way to save observers on CoreData objects?

I am wondering if it would be possible to save and restore the observer of keyPaths of CoreData Entities.[详细]

2023-04-07 04:18 分类：问答
KVO: Should I explicitly remove an object as an observer?

I have a table view controller whose cells display the content of a different object. Since the content of these objects can be updated, I use KVO to be notified of changes in order to update the tabl[详细]

2023-04-05 22:20 分类：问答
Key/value observing not firing for property defined as: @property (readwrite, retain) __attribute__((NSObject)) CGImageRef thumbnailImage

I have a class with a property definition like so: // Interface @property (retain) __attribute__((NSObject)) CGImageRef thumbnailImage;[详细]

2023-04-04 07:23 分类：问答
How to perform an operation before any @synthesize'd accessor?

My model objects are lazy-loaded from an SQLite database. Don\'t ask why, but the code uses QuickLite to populate the objects, which means that some housek开发者_运维百科eeping has to be performed bef[详细]

2023-04-04 01:03 分类：问答
Marking custom subclass of NSOperation as terminated?

I\'ve created a custom subclass of NSOperation and I\'ve overwritten the main method. @interface WGTask : NSOperation[详细]

2023-04-02 05:47 分类：问答