What is the equivalent of Java Object in Swift?

Question

I'm a noobie in Swift. I would like to pass an instance of GameViewController or GameScene to a HelperClass as follows. In java I could use Object for this. How is this done in Swift?

func getHighscores(leaderboardID: String, caller: **whatTypeHere**) {
...
}

so basically I want to notify the right caller when I get the highscores from the GameCenter.

Answer 1

As I understand you want "caller" to be any type you want. In this case you need to use "AnyObject" type here. Documentation

Answer 2

AnyObject is the type for "could be anything" in Swift. What you probably actually want is to define a Protocol that both GameViewController and GameScene implement:

protocol HighScoreReceiver {
    func gotNewScores(scores:[Int])
}

class GameViewController: UIViewController, HighScoreReceiver {
    func gotNewScores(scores: [Int]) {
        // do something here
    }
}

class GameScene: HighScoreReceiver {
    func gotNewScores(scores: [Int]) {
        // do something here
    }
}

class Helper {
    func getHighscores(leaderboardID: String, caller: HighScoreReceiver) {
        //get the scores, then...
        caller.gotNewScores(scores)
    }
}