samedi 21 janvier 2017

Delegation in iOS without a protocol?

The Apple docs for Delegation state:

In both Swift and Objective-C delegation is often expressed with a protocol that defines the interaction and a conforming delegate property

I'm not sure of any other way to create delegates that don't "have to" involve a protocol. Is there another way of expressing delegation in Swift or Objective-C that doesn't involve a protocol?

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