Check if a method exists

Question

Is there any way I can test if a method exists in Objective-C?

I\'m trying to add a guard to see if my object has the method before calling it.

Answer 1

There is also the static message instancesRespondToSelector:(SEL)selector You would call it like this:

[MyClass instancesRespondToSelector:@selector(someMethod:withParams:)]

or like this:

[[myObject class] instancesRespondToSelector:@selector(someMethod:withParams:)]

This may be useful if you would like to call one constructor or another one depending on this (I mean, before having the instance itself).