Question

How to make a ConstantList class in Objective C of an application which could be accessible to all the classes who are using constants.

like in Actionscript we do:

public class ConstantList
{
   public static const EVENT_CHANGE:String = "event_change";
}

Or what is the best approach to handle application constant.

Regards
Ranjan

Answer 1

You can use global constants, like the following:

//MyConstants.m    
NSString * const EVENT_CHANGE = @"event_change";

// MyConstants.h
extern NSString* const EVENT_CHANGE;

Now include MyConstants.h header to your implementation file and you can use EVENT_CHANGE constant string in it