Le 18 juil. 2012 à 15:08, William Squires <wsqui...@satx.rr.com> a écrit :
> Okay, after reading some of the documentation on KVC coding, I understand (I > think) that the point is to allow me to specify a property of an object with > an NSString, then set/get that property value using KVC (i.e. valueForKey: or > setValue:forKey:). But it seems like the fact that there's no way to specify > (or grab) the value of the property in a generic-enough manner would be a > problem - anyone using it would still have to know the data type of the > property they want to access, and thus they might as well just use the > accessors. I can see this would work if ObjC had a generic data type (like > the 'variant' data type in VB/REALbasic), but AFAIK, ObjC doesn't have such, > and valueForKey: returns an id, right? > How can I determine what I get back? (i.e. what does the id pointer point > to? an NSString? an NSNumber? NSDecimalNumber? NSData? another NSObject > subclass?) > > - [NSObject isKindOfClass:] ? -- Jean-Daniel _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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 arch...@mail-archive.com
