Question

I try to find answer for my question but failed.

Can i do any workaround to let two classes import each other.

#import "classB.h"
@interface classA : NSObject
{
    classB bObject;
}




#import "classA.h"
@interface classB : NSObject
{
   classA aObject;
}

Thanks

Answer 1

Instead of actually importing your headers in your headers, use @class to make a forward class declaration:

@class classB;
@interface classA : NSObject
{
    classB bObject;
}


@class classA;
@interface classB : NSObject
{
   classA aObject;
}

This just tells the compiler that classA and classB are classes, without actually loading any of the interfaces.

If you use any of classA‘s methods in classB, you’ll need the classA interface in classB‘s implementation, in which case you can just import classB.h in classA.h (or vice versa).