Objective C - determine class type at runtime

Question

In the interface I have this:

Animal*     myPet;

At runtime I may want myPet to be a cat or a dog, which are subclasses of Animal:

    id newPet;
    if(someCondition) {
            newPet = [[Cat alloc] initWithNibName:@"Cat" bundle:nil];
    } else {
            newPet = [[Dog alloc] initWithNibName:@"Dog" bundle:nil];
    }
    self.myPet = newPet;

Obviously this is incorrect, but I hope it's enough to show what I'm trying to do. What is the best practice for doing this?

Answer 1

isKindOfClass is your friend:

[newPet isKindOfClass:Dog.class] == NO