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Game Center'ı kullanarak oyuncuların Firebase üzerinde oluşturulan bir Apple platformu oyununda oturum açmasını sağlayabilirsiniz. Firebase ile Game Center Sign-in'i kullanmak için önce yerel oyuncunun Game Center ile oturum açtığından emin olun. Ardından, Firebase ile kimlik doğrulamak için kullanabileceğiniz bir Firebase kimlik bilgisi oluşturmak üzere GameCenterAuthProvider nesnesini kullanın.
Başlamadan önce
Firebase bağımlılarını yükleyip yönetmek için Swift Package Manager'ı kullanın.
İşlem tamamlandığında Xcode otomatik olarak arka planda bağımlılarınızı çözümlemeye ve indirmeye başlar.
Ardından, bazı yapılandırma adımlarını uygulayın:
Apple uygulamanızı Firebase'e kaydettiğinizden emin olun. Bu, kayıt bölümüne uygulamanızın paket kimliğini girmenin yanı sıra App Store kimliği ve takım kimliği gibi ek isteğe bağlı bilgileri de girmeniz gerektiği anlamına gelir. Bu, oturum açma işlemi tamamlanmadan önce kullanıcının Game Center kimlik bilgilerinin hedef kitlesini güvenli bir şekilde doğrulamak için gereklidir.
Firebase projeniz için Game Center'ı oturum açma sağlayıcısı olarak etkinleştirin:
Game Center entegrasyonunuzun bir parçası olarak, Game Center kimlik doğrulama sürecinde birden fazla noktada çağrılan bir kimlik doğrulama işleyicisi tanımlarsınız. Bu işleyicide, oynatıcının Game Center ile oturum açıp açmadığını kontrol edin. Bu durumda Firebase'de oturum açmaya devam edebilirsiniz.
Swift
letlocalPlayer=GKLocalPlayer.localPlayer()localPlayer.authenticateHandler={(gcAuthViewController?,error)inifletgcAuthViewController=gcAuthViewController{// Pause any activities that require user interaction, then present the// gcAuthViewController to the player.}elseiflocalPlayer.isAuthenticated{// Player is signed in to Game Center. Get Firebase credentials from the// player's Game Center credentials (see below).}else{// Error}}
Objective-C
__weakGKLocalPlayer*localPlayer=[GKLocalPlayerlocalPlayer];localPlayer.authenticateHandler=^(UIViewController*gcAuthViewController,NSError*error){if(gcAuthViewController!=nil){// Pause any activities that require user interaction, then present the// gcAuthViewController to the player.}elseif(localPlayer.isAuthenticated){// Player is signed in to Game Center. Get Firebase credentials from the// player's Game Center credentials (see below).}else{// Error}};
Firebase ile kimlik doğrulama
Yerel oyuncunun Game Center ile oturum açtığını belirledikten sonra, AuthCredential nesnesi oluşturup GameCenterAuthProvider.getCredential() ile oyuncunun oturumunu açın ve bu nesneyi signIn(with:)'ye iletin:
Swift
// Get Firebase credentials from the player's Game Center credentialsGameCenterAuthProvider.getCredential(){(credential,error)inifleterror=error{return}// The credential can be used to sign in, or re-auth, or link or unlink.Auth.auth().signIn(with:credential){(user,error)inifleterror=error{return}// Player is signed in!}
Objective-C
// Get Firebase credentials from the player's Game Center credentials[FIRGameCenterAuthProvidergetCredentialWithCompletion:^(FIRAuthCredential*credential,NSError*error){// The credential can be used to sign in, or re-auth, or link or unlink.if(error==nil){[[FIRAuthauth]signInWithCredential:credentialcompletion:^(FIRUser*user,NSError*error){// If error is nil, player is signed in.}];}}];
Sonraki adımlar
Kullanıcı ilk kez oturum açtıktan sonra yeni bir kullanıcı hesabı oluşturulur ve bu hesap, kullanıcının Game Center kimliğine bağlanır. Bu yeni hesap, Firebase projenizin bir parçası olarak depolanır ve projenizdeki her uygulamada kullanıcıyı tanımlamak için kullanılabilir.
Oyununuzda, kullanıcının Firebase UID'sini User nesnesinden alabilirsiniz:
Swift
letuser=Auth.auth().currentUserifletuser=user{letplayerName=user.displayName// The user's ID, unique to the Firebase project.// Do NOT use this value to authenticate with your backend server,// if you have one. Use getToken(with:) instead.letuid=user.uid}
Objective-C
FIRUser*user=[FIRAuthauth].currentUser;if(user){NSString*playerName=user.displayName;// The user's ID, unique to the Firebase project.// Do NOT use this value to authenticate with your backend server,// if you have one. Use getTokenWithCompletion:completion: instead.NSString*uid=user.uid;}
Firebase Realtime Database ve Cloud Storage güvenlik kurallarınızda, auth değişkeninden oturum açmış kullanıcının benzersiz kullanıcı kimliğini alabilir ve bunu, kullanıcının hangi verilere erişebileceğini kontrol etmek için kullanabilirsiniz.
Kullanıcının Game Center oyuncu bilgilerini almak veya Game Center hizmetlerine erişmek için Game Kit tarafından sağlanan API'leri kullanın.
Bir kullanıcının Firebase oturumunu kapatmak için Auth.signOut() işlevini çağırın:
[[["Anlaması kolay","easyToUnderstand","thumb-up"],["Sorunumu çözdü","solvedMyProblem","thumb-up"],["Diğer","otherUp","thumb-up"]],[["İhtiyacım olan bilgiler yok","missingTheInformationINeed","thumb-down"],["Çok karmaşık / çok fazla adım var","tooComplicatedTooManySteps","thumb-down"],["Güncel değil","outOfDate","thumb-down"],["Çeviri sorunu","translationIssue","thumb-down"],["Örnek veya kod sorunu","samplesCodeIssue","thumb-down"],["Diğer","otherDown","thumb-down"]],["Son güncelleme tarihi: 2025-09-04 UTC."],[],[],null,["You can use Game Center to sign players in to an Apple platforms game built on Firebase. To\nuse Game Center Sign-in with Firebase, first make sure the local player is\nsigned in with Game Center, and then use the `GameCenterAuthProvider` object to\ngenerate a Firebase credential, which you can use to authenticate with Firebase.\n\nBefore you begin\n\nUse Swift Package Manager to install and manage Firebase dependencies.\n| Visit [our installation guide](/docs/ios/installation-methods) to learn about the different ways you can add Firebase SDKs to your Apple project, including importing frameworks directly and using CocoaPods.\n\n1. In Xcode, with your app project open, navigate to **File \\\u003e Add Packages**.\n2. When prompted, add the Firebase Apple platforms SDK repository: \n\n```text\n https://github.com/firebase/firebase-ios-sdk.git\n```\n| **Note:** New projects should use the default (latest) SDK version, but you can choose an older version if needed.\n3. Choose the Firebase Authentication library.\n4. Add the `-ObjC` flag to the *Other Linker Flags* section of your target's build settings.\n5. When finished, Xcode will automatically begin resolving and downloading your dependencies in the background.\n\n| **Deprecated:** Apple has [deprecated the `playerID` field](https://developer.apple.com/documentation/gamekit/gkplayer/1521127-playerid/). The Firebase Apple platforms SDK will use `gamePlayerID` and `teamPlayerID` from version 10.5.0 and onwards. Upgrading to SDK version 10.5.0 or later updates existing integrations that use `playerID` to instead use `gamePlayerID` and `teamPlayerID`. Upgrading existing Game Center Sign-in integrations to SDK version 10.5.0 or later is irreversible. For more details, see [Method: accounts.signInWithGameCenter](https://cloud.google.com/identity-platform/docs/reference/rest/v1/accounts/signInWithGameCenter).\n\nNext, perform some configuration steps:\n\n1. Make sure you register your Apple app with Firebase. This means entering your app's bundle ID in the registration section along with additional optional information such as App Store ID and Team ID, etc. This will be required for securely verifying the audience of the user's Game Center credential before completing sign-in.\n2. Enable Game Center as a sign-in provider for your Firebase project:\n 1. In the [Firebase console](//console.firebase.google.com/), open the **Authentication** section.\n 2. On the **Sign in method** tab, enable the **Game Center** sign-in provider.\n\nIntegrate Game Center Sign-in into your game\n\nFirst, if your game doesn't already use Game Center, follow the instructions in\n[Incorporating Game Center into Your Game](https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/GameKit_Guide/GameCenterOverview/GameCenterOverview.html#//apple_ref/doc/uid/TP40008304-CH5-SW22) and\n[Authenticating a Local Player on the Device](https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/GameKit_Guide/Users/Users.html#//apple_ref/doc/uid/TP40008304-CH8-SW19) on the Apple\ndeveloper site.\n\nBe sure the bundle ID you provide to iTunes Connect matches the bundle ID you\nused when you connected your app to your Firebase project.\n\nAs part of your Game Center integration, you define an authentication handler\nthat is called at multiple points in the Game Center authentication process. In\nthis handler, check if the player is signed in with Game Center. If so, you can\ncontinue to sign in to Firebase. \n\nSwift \n\n```swift\nlet localPlayer = GKLocalPlayer.localPlayer()\nlocalPlayer.authenticateHandler = { (gcAuthViewController?, error) in\n if let gcAuthViewController = gcAuthViewController {\n // Pause any activities that require user interaction, then present the\n // gcAuthViewController to the player.\n } else if localPlayer.isAuthenticated {\n // Player is signed in to Game Center. Get Firebase credentials from the\n // player's Game Center credentials (see below).\n } else {\n // Error\n }\n}\n```\n\nObjective-C \n\n```objective-c\n__weak GKLocalPlayer *localPlayer = [GKLocalPlayer localPlayer];\nlocalPlayer.authenticateHandler = ^(UIViewController *gcAuthViewController,\n NSError *error) {\n if (gcAuthViewController != nil) {\n // Pause any activities that require user interaction, then present the\n // gcAuthViewController to the player.\n } else if (localPlayer.isAuthenticated) {\n // Player is signed in to Game Center. Get Firebase credentials from the\n // player's Game Center credentials (see below).\n } else {\n // Error\n }\n};\n```\n\nAuthenticate with Firebase\n\nAfter you determine that the local player has signed in with Game Center,\nsign the player in to your game by creating an `AuthCredential` object with\n`GameCenterAuthProvider.getCredential()` and passing that object to\n`signIn(with:)`: \n\nSwift \n\n```swift\n// Get Firebase credentials from the player's Game Center credentials\nGameCenterAuthProvider.getCredential() { (credential, error) in\n if let error = error {\n return\n }\n // The credential can be used to sign in, or re-auth, or link or unlink.\n Auth.auth().signIn(with:credential) { (user, error) in\n if let error = error {\n return\n }\n // Player is signed in!\n }\n```\n\nObjective-C \n\n```objective-c\n// Get Firebase credentials from the player's Game Center credentials\n[FIRGameCenterAuthProvider getCredentialWithCompletion:^(FIRAuthCredential *credential,\n NSError *error) {\n // The credential can be used to sign in, or re-auth, or link or unlink.\n if (error == nil) {\n [[FIRAuth auth] signInWithCredential:credential\n completion:^(FIRUser *user, NSError *error) {\n // If error is nil, player is signed in.\n }];\n }\n}];\n```\n\nNext steps\n\nAfter a user signs in for the first time, a new user account is created and\nlinked to their Game Center ID. This new account is stored as part of your\nFirebase project, and can be used to identify a user across every app in your\nproject.\n\nIn your game, you can get the user's Firebase UID from the `User` object: \n\nSwift \n\n```swift\nlet user = Auth.auth().currentUser\nif let user = user {\n let playerName = user.displayName\n\n // The user's ID, unique to the Firebase project.\n // Do NOT use this value to authenticate with your backend server,\n // if you have one. Use getToken(with:) instead.\n let uid = user.uid\n}\n```\n\nObjective-C \n\n```objective-c\nFIRUser *user = [FIRAuth auth].currentUser;\nif (user) {\n NSString *playerName = user.displayName;\n\n // The user's ID, unique to the Firebase project.\n // Do NOT use this value to authenticate with your backend server,\n // if you have one. Use getTokenWithCompletion:completion: instead.\n NSString *uid = user.uid;\n}\n```\n\nIn your Firebase Realtime Database and Cloud Storage Security Rules, you can get\nthe signed-in user's unique user ID from the `auth` variable, and use it to\ncontrol what data a user can access.\n\nTo get a user's Game Center player information or to access Game Center\nservices, use the APIs provided by [Game Kit](https://developer.apple.com/library/content/documentation/NetworkingInternet/Conceptual/GameKit_Guide/Introduction/Introduction.html).\n\nTo sign a user out of Firebase, call `Auth.signOut()`: \n\nSwift \n\n```swift\nlet firebaseAuth = Auth.auth()\ndo {\n try firebaseAuth.signOut()\n} catch let signOutError as NSError {\n print (\"Error signing out: %@\", signOutError)\n}\n```\n\nObjective-C \n\n```objective-c\nNSError *signOutError;\nBOOL status = [[FIRAuth auth] signOut:&signOutError];\nif (!status) {\n NSLog(@\"Error signing out: %@\", signOutError);\n return;\n}\n```"]]