Objective-C Private Property Inheritance - objective-c

Question

I just wanted to make sure my understanding of property inheritance was correct. I'm currently trying to make a subclass of a UIViewController. In my UIViewController all my outlets and such are declared in the implementation section like so:
#interface BaseClass()
#property (weak, nonatomic) IBOutlet UILabel *scoreLabel;
#end
Thus those properties are then private, correct? Now when I try and make a subclass and access those properties using my getters and setters, I cannot access them from my subclass. Is the proper form to redeclare those properties again in my subclass' implementation section, like so?
#interface SubClass()
#property (weak, nonatomic) IBOutlet UILabel *scoreLabel;
#end
I guess I am ok with doing it this way, but then I feel like it ruins the purpose of inheritance. What is the proper way/what am I doing wrong?

Answer 1

I would declare the property in the public interface for the BaseClass - I don't see any reason to put them in a class extension.
#interface BaseClass : UIViewController
#property (weak, nonatomic) IBOutlet UILabel *scoreLabel;
#end
#interface SubClass : BaseClass
// No need to redeclare the property as you're inheriting it.
#end
[EDIT]
If you must use the class extension then you could use a private header to achieve the same.
Public header for BaseClass (BaseClass.h)
#interface BaseClass : UIViewController
#end
Private header for BaseClass (BaseClass-Private.h)
#interface BaseClass ()
#property (weak, nonatomic) IBOutlet UILabel *scoreLabel;
#end
Public header for SubClass (SubClass.h)
#import "SubClass.h"
#interface SubClass : BaseClass
#end
Implementation of SubClass (SubClass.m)
#import "BaseClass-Private.h"
#implementation SubClass
#end