CODEWITHSUNDEEP
objective-cdelegates
Nicolas Manzini
Nicolas Manzini

Reputation: 8546

Should a delegate declare the custom protocol it implement?

I have created a UITableView subclass SliderTableView and created a NSObject subclass SliderDataSource that act as the UITableViewDataSource delegate.

I want to extend the UITableViewDataSource protocol. Should I declare the extended protocol in SliderTableView or in the SliderDataSource. If I declare the protocol in SliderTableView I will need to import it in my delegate, If I declare it in the delegate I won't need to import it but it sounds fishy to declare the protocol you obey to.

Upvotes: 0

Views: 36

Answers (1)

Amin Negm-Awad
Amin Negm-Awad

Reputation: 16660

If your question is, in which header file it should be defined, you should define it in SliderTableView.h. SliderTableView determine the content of the protocol, knows what it needs and so on. So it is the right place. The import is correct, because there is a dependency.

Anyway you can define the protocol in an extra header file for that protocol, too.

Upvotes: 1

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