Re: inheriting from NSMutableData
Re: inheriting from NSMutableData
- Subject: Re: inheriting from NSMutableData
- From: Scott Anguish <email@hidden>
- Date: Sat, 13 Sep 2003 20:17:51 -0400
On Saturday, September 13, 2003, at 6:33 PM, daniel oberhoff wrote:
i get an exception telling me that initWithCapacity is only defined
for abstract class and that i should define it in my class. shure i
could, just calling super within (sorry, i forgot to try and now its
no the other system...) but it shows me that i have not understood the
inheritance.
i mean, NSMutableData should have a concrete implementation of
initWithCapacity, why isnt it just called?
I think it's a class cluster problem. do a search on class clusters
in the doc, and you'll see it's a whole new thing to learn
is there any more stones in the way? it suggests so. coz i was
assuming i could also still use all the other init methods (which is
why i access the format with selector methods so if it isnt defined it
will say so...and define it to canocal 44.l float lpcm or such).
a better suggestion in this case I think would be to have a Sound
class that contains the NSMutableData object, and your own custom
fields, rather than making it a subclass of NSMutableData.
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