ios - 为什么我的委托(delegate)函数 didReceive Data 没有在 Swift 中被调用？

Question

我正在制作一款多人实时 Game Center 游戏，我正在使用本教程 http://www.raywenderlich.com/60998/game-center-tutorial-how-to-make-a-simple-multiplayer-game-with-sprite-kit-part-2 .我一直走到控制台中显示“匹配已成功开始”的部分。应该调用的下一个委托(delegate)函数是 didReceiveData 函数，但它从未被调用过。我完全按照教程中的说明进行了操作，但它对我不起作用。

    //MultiplayerNetworking.swift
  func match(match: GKMatch!, didReceiveData data: NSData!, fromRemotePlayer playerID: GKPlayer!) {



    let message = UnsafePointer<Message>(data.bytes).memory

    if(message.messageType == MessageType.kMessageTypeRandomNumber) {
        let messageRandomNumber = UnsafePointer<MessageRandomNumber>(data.bytes).memory

        println("Received random number: \(messageRandomNumber.randomNumber)")

        var tie = false

        if(messageRandomNumber.randomNumber == _ourRandomNumber) {
            println("Tie")
            tie = true
            _ourRandomNumber = arc4random()
            self.sendRandomNumber()
        }
        else {
            var dictionary = ["\(playerIDKey)":"\(playerID)", "\(randomNumberKey)":"\(messageRandomNumber.randomNumber)"]
            self.processReceivedRandomNumber(dictionary)
        }

        if(_receivedAllRandomNumbers) {
            _isPlayer1 = self.isLocalPlayerPlayer1()
        }

        if(!tie && _receivedAllRandomNumbers) {
            if(_gameState == GameState.kGameStateWaitingForRandomNumber) {
                _gameState = GameState.kGameStateWaitingForStart
            }
            self.tryStartGame()
        }
    }
    else if(message.messageType == MessageType.kMessageTypeGameBegin) {
        println("Begin game message received")
        _gameState = GameState.kGameStateActive
        self.delegate?.setCurrentPlayerIndex(self.indexForLocalPlayer())
    }
    else if(message.messageType == MessageType.kMessageTypeMove) {
        println("Move message received")
        let messageMove = UnsafePointer<MessageMove>(data.bytes).memory
        self.delegate?.movePlayerAtIndex(self.indexForPlayerWithId(playerIDKey))
    }
    else if(message.messageType == MessageType.kMessageTypeGameOver) {
        println("Game over message received")
        let messageGameOver = UnsafePointer<MessageGameOver>(data.bytes).memory
        self.delegate?.gameOver(messageGameOver.player1Won)
    }
}


//GameScene.swift


protocol GameKitHelperDelegate {
func matchEnded()
func matchStartedNow()
func match(match: GKMatch!, didReceiveData data: NSData!, fromRemotePlayer playerID: GKPlayer!)

func moveForward()

}

func match(match: GKMatch!, didReceiveData data: NSData!, fromRemotePlayer playerID: GKPlayer!) {



    if(_match != match) {

        println("works")
        return
    }
    _delegate?.match(match, didReceiveData: data, fromRemotePlayer: playerID)

    println("didnt work")
        }

Answer 1

您使用的是哪个 iOS 版本？因为它在文档中清楚地说明了以下方法:

- (void)match:(GKMatch *)match didReceiveData:(NSData *)data fromRemotePlayer:(GKPlayer *)player

适用于 iOS8 及以上版本。

而以下方法:

- (void)match:(GKMatch *)match didReceiveData:(NSData *)data fromPlayer:(NSString *)playerID

在 iOS8 中已弃用。