Question

Lets say I have a UIViewController subclass called ViewControllerOne and another ViewControllerTwo.

I know the at one point that the class I need in another method is either one of these. Is it possible to pass the class in a method, then inside that method which its received at, declare a UIViewController with whichever subclass was passed?

I want to know if its possible without just doing something like, if this = this, declare view one, else declare view two.

Thanks.

Answer 1

Your method could be:

- (void)myMethod:(Class)class {
    UIViewController *controller = [[class alloc] init];
}

Or something to that effect.

Or you could create the controller where you know what the class is and pass it into the method:

UIViewController *controller = [[MYViewController alloc] init];
[self myMethod:controller];

And then if need be inside the method:

- (void)myMethod:(UIViewController *)controller {
    if ([controller isKindOfClass:[MYViewController class]]) {
        // Do something
    } else {
        // Do something else
    }
}

Hope that helps! 🙂