Creating a selector from a method name with parameters

Question

I have a code sample that gets a SEL from the current object,

SEL callback = @selector(mymethod:parameter2);

And I have a met

Answer 1

You can't pass a parameter in a @selector().

It looks like you're trying to implement a callback. The best way to do that would be something like this:

[object setCallbackObject:self withSelector:@selector(myMethod:)];

Then in your object's setCallbackObject:withSelector: method: you can call your callback method.

-(void)setCallbackObject:(id)anObject withSelector:(SEL)selector {
    [anObject performSelector:selector];
}