在Swift中設置GKMatchmakerViewControllerDelegate時出現錯誤嗎？

Question

我想設置我的游戲的配對viewController 。 為此，我將GKMatchmakerViewControllerDelegate委托添加到名為Home主UIViewController ，如下所示：

class Home: UIViewController, GKGameCenterControllerDelegate, GKMatchmakerViewControllerDelegate {

要加載配對界面，請使用以下代碼：

func openMatchmaker() {
    var gcViewController: GKMatchmakerViewController = GKMatchmakerViewController(rootViewController: self)

    gcViewController.matchmakerDelegate = self

    gcViewController.hosted = false
    gcViewController.matchRequest.minPlayers = 2
    gcViewController.matchRequest.maxPlayers = 2
    gcViewController.matchRequest.defaultNumberOfPlayers = 2

    self.showViewController(gcViewController, sender: self)
    self.navigationController?.pushViewController(gcViewController, animated: true)
}

雖然，當我嘗試運行代碼時，在下一個class Home: ...時收到以下錯誤。 錯誤消息顯示：

 Type 'Home' does not conform to protocol `GKMatchmakerViewControllerDelegate`. 

為什么會這樣呢？

Answer 1

多數情況下，出現該錯誤是因為您尚未實現特定協議所需的功能。 您可以通過命令單擊該協議來查看它們。 添加以下方法：

func matchmakerViewController(viewController: GKMatchmakerViewController!,
    didFailWithError error: NSError!) {
}

func matchmakerViewController(viewController: GKMatchmakerViewController!,
    didFindHostedPlayers players: [AnyObject]!) {
}

func matchmakerViewControllerWasCancelled(viewController: GKMatchmakerViewController!) {
}

func matchmakerViewController(viewController: GKMatchmakerViewController!,
    hostedPlayerDidAccept player: GKPlayer!) {
}

Answer 2

批准答案中的第二個功能已在最新的SDK中更新：

func matchmakerViewController(viewController: GKMatchmakerViewController, didFindHostedPlayers players: [GKPlayer]) {
   ... 
}