passing data back to a previously allocated UIViewController

Question

I have a view controller that then has a button that passes to an option menu.

When options are set they need to be past back to the previously allocated viewcontroller.

Answer 1

You can achieve this by using a delegate protocol. First view controller should become the delegate of the second view controller and then you can call this delegate method in your first view controller once the selection is done.

You can lookup google for implementation of delegates in objective-c. Its pretty simple. Add a

@protocol 

@end

Create a member variable in the second view controller for assigning the delegate. And define the method in the class implementing the delegate.