How to retrieve all NSNotificationCenter observers?

Question

I\'d like to retrieve a list of observers (objects and selectors) for a given notification name. I know there\'s no official API for that. I also know I could subclass NSNot

Answer 1

If you don't want to subclass NSNotificationCenter you can rename original addObserver:selector:name:object method and create your own with such name and add observers in there to some array then call original renamed method.

Take a look at following methods: class_addMethod, class_replaceMethod, class_getMethodImplementation.

Also look at this SO question: Method Swizzling

I am not sure why you want observers but you might find this class useful, which removes observers automatically for you which I think might be what you want. SFObservers