Is it possible to determine whether ViewController is presented as Modal?

Question

Is it possible to check inside ViewController class that it is presented as modal view controller?

Answer 1

I've looked a bit around to find the right answer to this question, and I couldn't find any which covered all the possible scenarios. I wrote these few lines of code which seem to do the job. You can find few inline comments to figure out what's been checked.

- (BOOL)isModal {
    BOOL modal = NO;
    if ([self presentingViewController]) { //Some view Controller is presenting the current stack
        UIViewController *presented = [[self presentingViewController] presentedViewController]; // What's been presented
        if ([presented respondsToSelector:@selector(viewControllers)]) { // There's a stack
            NSArray *viewControllers = [presented performSelector:@selector(viewControllers)];
            modal = [viewControllers firstObject] == self; // Current VC is presented modally if it's the first in the stack
        }
        else {
            modal = presented == self; // Don't think this is actually needed. set modal = YES should do the job tho.
        }
    }
    return modal;
}

Hope this help.