On Jul 21, 2011, at 9:33 AM, Nick Zitzmann wrote:

> 
> On Jul 21, 2011, at 9:51 AM, Chris Tracewell wrote:
> 
>> I have a private framework that is included in a project. Many of the 
>> project classes descend from a class in the framework. All of these 
>> descendent classes implement copyWithZone, encodeWithCoder and initWithCoder 
>> and thus respectively calls each on super. I get warnings stating that 
>> "MySuperClass may not respond to -copyWithZone" and so on. I do declare each 
>> of these methods in super's header file, so why might these errors be 
>> getting triggered?
> 
> 
> I don't know whether it will make a difference or not, but one thing you 
> ought to try is instead of declaring the methods in the header file, you 
> should declare the class's compliance with the proper protocols (NSCopying 
> and NSCoding in this case). That's the proper way of declaring support for 
> copying and coding. It's a little different from C++, you see.
> 
> Nick Zitzmann
> <http://www.chronosnet.com/>

Nick,

Thanks, that did it. Added the protocol declarations in the interface and it 
cleared things up. For future reference you need to add the declaration of 
protocol conformity like so...

@interface MyClass : NSObject <NSCopying>

You can comma separate multiple protocols.


--Chris_______________________________________________

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