Re: valueForKeyPath: not found in protocol
Re: valueForKeyPath: not found in protocol
- Subject: Re: valueForKeyPath: not found in protocol
- From: Roland King <email@hidden>
- Date: Tue, 16 Nov 2010 20:20:01 +0800
Yes that wont work, which is why I said NSObject*< protocol> instead of id<NSObject,protocol>
valueForKeyPath: is not defined in the NSObject protocol, but is defined on NSObject itself which is why it works.
On Nov 16, 2010, at 19:27, Remco Poelstra <email@hidden> wrote:
> Op 16 nov 2010, om 12:18 heeft Mark Wright het volgende geschreven:
>
>> Your AudionetQueueDelegate protocol is probably not inheriting from <NSObject> (the protocol) so it warns that valueForKeyPath: is not found. It'll also probably complain about methods like respondsToSelector: which is also part of the NSObject protocol.
>>
>> You need to write your protocol declaration in AudionetQueueDelegateProtocol.h as:
>>
>>
>> @protocol AudionetQueueDelegate <NSObject>
>> ...
>> @end
>>
>>
>> Then it should silence the warnings and no casting is required (which is not the correct solution in this case I believe).
>
>
> That does not seem to work.
> I now have:
> #import <UIKit/UIKit.h>
> @protocol AudionetQueueDelegate <NSObject>
> @end
>
> But then the warning returns. (Having set the delegate to id <AudionetQueueDelegate> again).
>
> Kind regards,
>
> Remco Poelstra
>
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