I need to create an object in one class hierarchy that wraps an object from a different one. They both have very similar interfaces, and I\'d like to automatically have my wrapper forward messages it
I\'m confused by this: http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/KeyValueCoding/Concepts/AccessorConventions.html#//apple_ref/doc/uid/20002174-178830-BAJEDEFB
This question already has answers here: Xcode - How to fix 'NSUnknownKeyException', reason: … this class is not key value coding-compliant for the key X" error?
For example, in the docs a KVC-style validation method is implemented like this: -(BOOL)validateAge:(id *)ioValue error:(NSError **)outError
I know Apple is not the only ressource out there, and many people create great videos in conferences and presentations.
In my model I got an NSMutableArray that keeps track of a changing number of elements. In my view I got a NSTextField that shows the number of elements.
I\'ve got a relatively complicated Core Data relationship structure and I\'m trying to figure out how to set up value dependencies (or observations) across various to-many relationships.Let me start o
I am working on an application in which i need to store all the NSObject subclass properties into plist file and then allow users to store it and restore it. We call it profile and it can restore the
I\'m building a (very) simple FTP app in Cocoa, and I need to store information on the different types of servers that are supported. So, I\'ve created a ServerTy开发者_运维问答pe class, which stores
Ok so I\'m trying to build this stat tracker for my app and I have built a data model object called statTracker that keeps track of all the stuff I want it to. I can set and retrieve values using the
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