in tutorials/tutorial4/TicTacToe/RandomWin/RandomWinViewController.swift [51:66]
func announce(winner: PlayerType, withCompletionHandler handler: @escaping () -> ()) {
let winnerString: String = {
switch winner {
case .player1:
return "\(player1Name) Won!"
case .player2:
return "\(player2Name) Won!"
}
}()
let alert = UIAlertController(title: winnerString, message: nil, preferredStyle: .alert)
let closeAction = UIAlertAction(title: "That was random...", style: UIAlertActionStyle.default) { _ in
handler()
}
alert.addAction(closeAction)
present(alert, animated: true, completion: nil)
}