Instance method 'match(match:player:didChangeState:)' nearly matches optional requirement 'match(_:player:didChange:)' of protocol 'GKMatchDelegate'

Question

i have this function in my code:

func match(match: GKMatch, player playerID: String, didChangeState state: GKPlayerConnectionState) {
        if (match != self.match) {
            print("Wrong match")
            return
        }

and it gaves me this warning:

Instance method 'match(match:player:didChangeState:)' nearly matches optional requirement 'match(_:player:didChange:)' of protocol 'GKMatchDelegate'

and it offers me the possibility to make the func private, or to insert @nonobjc to silence the warning? what should i do?

Answer 1

好的，感谢https://stackoverflow.com/users/1187415/martin-r（和文档） 只需将其更改为：

 func match(_ match: GKMatch, player playerID: String, didChange state: GKPlayerConnectionState) {
        if (match != self.match) {
            print("Wrong match")
            return
        }