How can I add a boolean value to a NSDictionary?

Question

Well, for integers I would use NSNumber. But YES and NO aren\'t objects, I guess. A.f.a.i.k. I can only add objects to an NSDictionary, right?

Answer 1

If you are declaring it as a literal and you are using clang v3.1 or above, you should use @NO / @YES if you are declaring it as a literal. E.g.

NSMutableDictionary* foo = [@{ @"key": @NO } mutableCopy];
foo[@"bar"] = @YES;

For more info on that:

http://clang.llvm.org/docs/ObjectiveCLiterals.html