What's the correct method to subclass a singleton class in Objective -C?

Question

I have created a singleton class and I want to create a class which is subclass of this singleton class, what is the correct method to do it

Answer 1

If Jon didn't convinced you to not do it, you should do it this way:

In your superclass, init your singleton instance with [[[self class] alloc] init] so then you always get an instance of the class with which you are calling the sharedInstance method. And you don't have to overwrite the sharedInstance method in your subclass.

 [SuperClass sharedInstance] //-> instance of SuperClass
 [SubClass sharedInstance] //-> instance of Class