NSMutableDictionary with UIButton* as keys - iPhone development

Question

I\'m new to iPhone development and I have a question that may have a very simple answer. I am trying to add buttons to a view and these buttons are associated with a custom clas

Answer 1

From Apple docs:

The key is copied (using copyWithZone:; keys must conform to the NSCopying protocol).

UIButton does not conform to the NSCopying protocol and so you cannot use it as a key in NSDictionary