您可以使用 Google Play 游戏服务,使玩家能够登录在 Firebase 和 Unity 基础上构建的 Android 游戏。要搭配 Firebase 使用 Google Play 游戏服务的登录机制,请首先让玩家登录 Google Play 游戏,并同时申请一个 OAuth 2.0 身份验证代码。然后,将此身份验证代码传递给 PlayGamesAuthProvider 以生成一个 Firebase 凭据,您可以使用该凭据进行 Firebase 身份验证。
在活动、成就和排行榜页面上,创建您想要在游戏中使用的任何 Play Games 资源(如果您不想立即使用任何资源,可以先创建一个占位条目)。然后,在任意活动、成就或排行榜页面上,点击获取资源并将 Android 资源片段复制到合适的位置。您在设置 Google Play Games services插件时需要用到该片段。
依次点击 Window(窗口)> Google Play Games(Google Play 游戏)> Setup(设置)> Android Setup (Android 设置),打开 Android Configuration(Android 配置)界面。
将来自 Play 管理中心的 Android 资源代码段粘贴到 Resources Definition(资源定义)字段中。
将 Web 服务器客户端 ID(您在 Firebase 控制台中启用 Play Games 登录时提供的 ID)粘贴到客户端 ID 字段中。
点击设置。
在您的游戏中,配置一个启用了 RequestServerAuthCode 设置的 Play 游戏客户端:
usingGooglePlayGames;usingGooglePlayGames.BasicApi;usingUnityEngine.SocialPlatforms;usingSystem.Threading.Tasks;PlayGamesClientConfigurationconfig=newPlayGamesClientConfiguration.Builder().RequestServerAuthCode(false/* Don't force refresh */).Build();PlayGamesPlatform.InitializeInstance(config);PlayGamesPlatform.Activate();
然后,当玩家选择使用 Play 游戏服务登录时,调用 Social.localUser.Authenticate():
Social.localUser.Authenticate((boolsuccess)=>{// handle success or failure});
进行 Firebase 身份验证
将 Play 游戏登录服务添加到您的游戏后,您可以使用 Play 游戏服务提供的身份验证代码进行 Firebase 身份验证。
然后,用 Play 游戏服务提供的身份验证代码换取一个 Firebase 凭据,并使用该 Firebase 凭据来对该玩家进行身份验证:
Firebase.Auth.FirebaseAuthauth=Firebase.Auth.FirebaseAuth.DefaultInstance;Firebase.Auth.Credentialcredential=Firebase.Auth.PlayGamesAuthProvider.GetCredential(authCode);auth.SignInAndRetrieveDataWithCredentialAsync(credential).ContinueWith(task=>{if(task.IsCanceled){Debug.LogError("SignInAndRetrieveDataWithCredentialAsync was canceled.");return;}if(task.IsFaulted){Debug.LogError("SignInAndRetrieveDataWithCredentialAsync encountered an error: "+task.Exception);return;}Firebase.Auth.AuthResultresult=task.Result;Debug.LogFormat("User signed in successfully: {0} ({1})",result.User.DisplayName,result.User.UserId);});
后续步骤
用户首次登录后,系统会创建一个新的用户账号,并将该账号与其 Play 游戏 ID 关联。这个新账号归属于您的 Firebase 项目,可用于在该项目中的每个应用中标识用户。
Firebase.Auth.FirebaseUseruser=auth.CurrentUser;if(user!=null && user.IsValid()){stringplayerName=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 User.TokenAsync() instead.stringuid=user.UserId;}
[null,null,["最后更新时间 (UTC):2025-08-16。"],[],[],null,["# Authenticate in Unity Using Google Play Games Services\n\nYou can use Google Play Games services to sign in players to an Android game\nbuilt on Firebase and Unity. To use Google Play Games services sign-in with\nFirebase, first sign in the player with Google Play Games, and request an\nOAuth 2.0 auth code when you do so. Then, pass the auth code to\n`PlayGamesAuthProvider` to generate a Firebase credential, which you can use to\nauthenticate with Firebase.\n| **Important:** You can use Google Play Games services sign-in only on Android.\n\nBefore you begin\n----------------\n\n### Set up your Unity project\n\n1. Add the Firebase config file and the Firebase Unity SDK to your Unity project\n as described in\n [Add Firebase to your Unity project](/docs/unity/setup#set_up_environment).\n Follow the instructions for Android.\n\n Be sure to import `FirebaseAuth.unitypackage`.\n2. In the Unity Editor, under **Build Settings \\\u003e Player Settings \\\u003e Other\n Settings** set the Android package name of your game.\n\n3. Then, under **Build Settings \\\u003e Player Settings \\\u003e Publishing Settings**,\n select or create a keystore and key, which will be used to sign your Android\n package. Your APK must be signed for Play Games sign-in to work---this\n requirement applies not just for publishing, but also during development of\n your game.\n\n### Set up your Firebase project\n\n1. In the [Firebase console](//console.firebase.google.com/), go to the Firebase project\n in which you registered your Unity project.\n\n2. Set your game's SHA-1 fingerprint from the\n [Settings](//console.firebase.google.com/project/_/settings/general/) page\n of the Firebase console, using the key you set in Unity.\n\n You can get the SHA-1 fingerprint of your key with the `keytool` command: \n\n ```\n keytool -exportcert -list -v \\\n -alias YOUR-KEY-NAME -keystore PATH-TO-KEYSTORE\n ```\n\n \u003cbr /\u003e\n\n Alternatively, you can get the SHA hash of your signing certificate with the\n gradle `signingReport` command: \n\n ```\n gradlew signingReport\n ```\n\n \u003cbr /\u003e\n\n Your APK must be signed with this key, including during development.\n3. Enable Google Play Games as a sign-in provider:\n\n 1. In the Firebase console, open the\n [**Authentication** section](//console.firebase.google.com/project/_/authentication/providers).\n\n 2. Generate and obtain your project's web server client ID and client\n secret:\n\n 1. Within the **Sign in method** tab, enable the **Google** sign-in\n provider.\n\n 2. Copy the web server client ID and secret from the **Google** sign-in\n provider.\n\n 3. Within the **Sign in method** tab, enable the **Play Games**\n sign-in provider, and specify your project's web server client ID and\n client secret, which you got in the last step.\n\n### Configure Play Games services with your Firebase app information\n\n1. In the\n [Google Play Console](https://play.google.com/console/developers),\n open your Google Play app or create one.\n\n2. In the *Grow* section, click\n **Play Games services \\\u003e Setup \\& Management \\\u003e Configuration**.\n\n3. Click **Yes, my game already uses Google APIs** , select your Firebase\n project from the list, and then click **Use**.\n\n4. On the Play Games services configuration page, click\n **Add Credential**.\n\n 1. Select the **Game server** type.\n 2. In the **OAuth client** field, select your project's web client ID. Be sure this is the same client ID you specified when you enabled Play Games sign-in.\n 3. Save your changes.\n5. Still on the Play Games services configuration page, click\n **Add Credential** again.\n\n 1. Select the **Android** type.\n 2. In the **OAuth client** field, select your project's Android client ID. (If you don't see your Android client ID, be sure you set your game's SHA-1 fingerprint in the Firebase console.)\n 3. Save your changes.\n6. On the **Events** , **Achievements** , and **Leaderboards** pages, create any\n Play Games resources you want to use with your game (if you don't\n want to use any immediately, you can create a placeholder entry). Then, on\n any of the **Events** , **Achievements** , or **Leaderboards** pages, click\n **Get resources** and copy the Android resources snippet somewhere\n convenient. You will need the snippet to set up the Google Play Games services\n plugin.\n\n The resources snippet looks like the following example: \n\n \u003c?xml version=\"1.0\" encoding=\"utf-8\"?\u003e\n \u003c!--\n Google Play game services IDs.\n Save this file as res/values/games-ids.xml in your project.\n --\u003e\n \u003cresources\u003e\n \u003c!-- app_id --\u003e\n \u003cstring name=\"app_id\" translatable=\"false\"\u003e123456789000\u003c/string\u003e\n \u003c!-- package_name --\u003e\n \u003cstring name=\"package_name\" translatable=\"false\"\u003ecom.example.game\u003c/string\u003e\n \u003c!-- event Wiped Raid --\u003e\n \u003cstring name=\"event_wiped_raid\" translatable=\"false\"\u003eCgkIpKjv1a4PEAIYBA\u003c/string\u003e\n \u003c/resources\u003e\n\n7. On the **Testers** page, add the email addresses of any users who need\n to be able to sign in to your game before you release it on the\n Play Store.\n\nIntegrate Play Games sign-in into your game\n-------------------------------------------\n\n1. Download the latest release of the\n [Play Games plugin for Unity](https://github.com/playgameservices/play-games-plugin-for-unity/releases)\n and extract it.\n\n2. Import the plugin's Unity package into your Unity project. You can find the\n Unity package in the `current-build` directory of the release archive.\n\n3. Set up the Play Games plugin:\n\n 1. Click **Window \\\u003e Google Play Games \\\u003e Setup \\\u003e Android Setup** to open the **Android Configuration** screen.\n 2. Paste the Android resources snippet you got from the Play console into the **Resources Definition** field.\n 3. Paste your web server client ID, which you provided when you enabled Play Games sign-in in the Firebase console, into the **Client ID** field.\n 4. Click **Setup**.\n4. In your game, configure a Play Games client with the `RequestServerAuthCode`\n setting enabled:\n\n using GooglePlayGames;\n using GooglePlayGames.BasicApi;\n using UnityEngine.SocialPlatforms;\n using System.Threading.Tasks;\n\n PlayGamesClientConfiguration config = new PlayGamesClientConfiguration.Builder()\n .RequestServerAuthCode(false /* Don't force refresh */)\n .Build();\n\n PlayGamesPlatform.InitializeInstance(config);\n PlayGamesPlatform.Activate();\n\n5. Then, when a player chooses to sign in with Play Games, call\n `Social.localUser.Authenticate()`:\n\n Social.localUser.Authenticate((bool success) =\u003e {\n // handle success or failure\n });\n\nAuthenticate with Firebase\n--------------------------\n\nAfter you add Play Games sign-in to your game, you can use the auth code from\nPlay Games services to authenticate with Firebase.\n\n1. After the player has successfully signed in using Play Games, in the sign-in\n continuation handler, get an auth code for the player's account:\n\n Social.localUser.Authenticate((bool success) =\u003e {\n if (success) {\n authCode = PlayGamesPlatform.Instance.GetServerAuthCode();\n }\n });\n\n2. Then, exchange the auth code from Play Games services for a Firebase\n credential, and use the Firebase credential to authenticate the player:\n\n Firebase.Auth.FirebaseAuth auth = Firebase.Auth.FirebaseAuth.DefaultInstance;\n Firebase.Auth.Credential credential =\n Firebase.Auth.PlayGamesAuthProvider.GetCredential(authCode);\n auth.SignInAndRetrieveDataWithCredentialAsync(credential).ContinueWith(task =\u003e {\n if (task.IsCanceled) {\n Debug.LogError(\"SignInAndRetrieveDataWithCredentialAsync was canceled.\");\n return;\n }\n if (task.IsFaulted) {\n Debug.LogError(\"SignInAndRetrieveDataWithCredentialAsync encountered an error: \" + task.Exception);\n return;\n }\n\n Firebase.Auth.AuthResult result = task.Result;\n Debug.LogFormat(\"User signed in successfully: {0} ({1})\",\n result.User.DisplayName, result.User.UserId);\n });\n\nNext steps\n----------\n\nAfter a user signs in for the first time, a new user account is created and\nlinked to their Play Games 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\n`Firebase.Auth.FirebaseUser` object: \n\n Firebase.Auth.FirebaseUser user = auth.CurrentUser;\n if (user != null && user.IsValid()) {\n string 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, if you\n // have one; use User.TokenAsync() instead.\n string uid = user.UserId;\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 Play Games player information or to access Play Games services,\nuse the APIs provided by the Play Games plugin.\n\nTo sign out a user, call `SignOut()`: \n\n auth.SignOut();"]]