Swift protocol in Objective-C class

Question

I wrote SearcherProtocol in Swift and need to implement an Objective-C class FileSearcher which has to use this protocol.

So I tried this:

Answer 1

I know this was a long time ago, but I just struggled with the same problem when adding a protocol to my Swift code, and it wasn't being added to the -Swift.h header file, hence "Cannot find protocol declaration"

The problem was my protocol wasn't marked as Public. I changed my protocol from this:

@objc protocol MyProtocol { //etc.... }

to this:

@objc public protocol MyProtocol { //etc.... }

I'm still not entirely sure why I need 'Public' but nobody else seems to, but hey it works...