Global int variable objective c

Question

I want to declare a static int variable in one class and have access to it in every other class. What is the best way to do this?

Answer 1

There are no static class variables in Objective C. You can create it as a file-scope static variable in the class' implementation file and provide static setter and getter methods in the class.

Or you can make it an old-school global, with an extern declaration in the .h file. The former approach is more flexible - you can add extra checks in the setter method, for example, the latter is less typing, and avoids the method call overhead.