Question

In one of my UIViewControllers in my UITabBarController, I do this:

MyTabBarController *myTBC = (MyTabBarController*)self.parentViewController;
for(UIViewController *anyVC in myTBC) {
    if([anyVC.class isKindOfClass:[SecondViewController class]])
        sVC = (SecondViewController *)anyVC;
    sVC.userLocation = userLocation;
}

but I get a warning at the for…line saying:

Collection expression type MyTabBarController may not respond to countByEnumeratingWithState:objects:count.

MyTabBarController is a subclass of UITabBarController.

Answer 1

This line:

for(UIViewController *anyVC in myTBC) {

should be:

for(UIViewController *anyVC in myTBC.viewControllers) {