Objective-C inheritance; calling overriden method from superclass?
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Published on 2010-12-25T21:29:28Z
Indexed on
2010/12/26
12:54 UTC
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Hello,
I have an Objective-C class that has a method that is meant to be overridden, which is uses in a different method. Something like this:
@interface BaseClass
- (id)overrideMe;
- (void)doAwesomeThings;
@end
@implementation BaseClass
- (id)overrideMe {
[self doesNotRecognizeSelector:_cmd];
return nil;
}
- (void)doAwesomeThings {
id stuff = [self overrideMe];
/* do stuff */
}
@end
@interface SubClass : BaseClass
@end
@implementation SubClass
- (id)overrideMe {
/* Actually do things */
return <something>;
}
@end
However, when I create a SubClass
and try to use it, it still calls overrideMe
on the BaseClass
and crashes due to doesNotRecognizeSelector:
. (I'm not doing a [super overrideMe]
or anything stupid like that).
Is there a way to get BaseClass
to call the overridden overrideMe
?
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