unwrapIfNav

@implementation UIViewController (Helpers)

- (UIViewController *)unwrapIfNav
{
    if (![self isKindOfClass:[UINavigationController class]]) {
        return self;
    }
    
    for (UIViewController *ctrl in self.childViewControllers) {
        if (![ctrl isKindOfClass:[UINavigationController class]]) {
            return ctrl;
        }
    }
    
    return nil;
}

@end