> > On May 16, 2013, at 11:41 PM, Graham Cox <[email protected]> wrote: > >>> There is setValue:forUndefinedKey: and then each object could keep a local >>> dictionary of these "defined at runtime" keys. >> >> There are low-level runtime methods that allow you to add properties at >> runtime. I'm not sure whether that's considered good practice, but it's >> doable. > > MYDynamicObject is a class I wrote that enables this: > https://github.com/snej/MYUtilities/blob/master/MYDynamicObject.h > You can subclass this, add properties to the @interface, and then mark them as > @dynamic in the @implementation. Then you just need to implement a generic > getter and setter method to do something like store the value in an internal > mutable dictionary. > > (This is just like what NSManagedObject does with @dynamic properties, only in > a more generic form.) > > —Jens
How is this really any different than using setValue:forUndefinedKey? _______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
