Mengintegrasikan Login dengan Google ke dalam Aplikasi Android
Tetap teratur dengan koleksi
Simpan dan kategorikan konten berdasarkan preferensi Anda.
Untuk mengintegrasikan Login dengan Google ke aplikasi Android Anda, konfigurasi Login dengan Google dan tambahkan tombol ke tata letak aplikasi Anda yang memulai alur login.
Sebelum memulai
Konfigurasi project Konsol API Google dan siapkan project Android Studio Anda.
Mengonfigurasi Login dengan Google dan objek GoogleSignInClient
Dalam metode onCreate aktivitas login, konfigurasi Login dengan Google untuk meminta data pengguna yang diperlukan oleh aplikasi Anda. Misalnya, untuk mengonfigurasi Login dengan Google agar meminta ID pengguna dan informasi profil dasar, buat objek GoogleSignInOptions dengan parameter DEFAULT_SIGN_IN. Untuk meminta alamat email pengguna juga, buat objek GoogleSignInOptions dengan opsi requestEmail.
// Configure sign-in to request the user's ID, email address, and basic// profile. ID and basic profile are included in DEFAULT_SIGN_IN.GoogleSignInOptionsgso=newGoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN).requestEmail().build();
Jika Anda perlu meminta cakupan tambahan untuk mengakses Google API, tentukan cakupan tersebut dengan requestScopes.
Untuk pengalaman pengguna terbaik, saat login, hanya minta cakupan yang
diperlukan agar aplikasi Anda dapat berfungsi secara minimal. Minta cakupan tambahan
hanya saat Anda membutuhkannya, sehingga pengguna melihat layar izin dalam
konteks tindakan yang mereka lakukan.
Lihat Meminta Cakupan Tambahan.
Kemudian, juga dalam metode onCreate aktivitas login, buat objek
GoogleSignInClient dengan opsi yang Anda tentukan.
// Build a GoogleSignInClient with the options specified by gso.mGoogleSignInClient=GoogleSignIn.getClient(this,gso);
Memeriksa pengguna yang sudah login
Dalam metode onStart aktivitas Anda, periksa apakah pengguna sudah login ke
aplikasi Anda dengan Google.
// Check for existing Google Sign In account, if the user is already signed in// the GoogleSignInAccount will be non-null.GoogleSignInAccountaccount=GoogleSignIn.getLastSignedInAccount(this);updateUI(account);
Jika GoogleSignIn.getLastSignedInAccount menampilkan objek GoogleSignInAccount
(bukan null), pengguna sudah login ke aplikasi Anda dengan Google.
Perbarui UI Anda dengan tepat—yaitu, sembunyikan tombol login, luncurkan
aktivitas utama, atau apa pun yang sesuai untuk aplikasi Anda.
Jika GoogleSignIn.getLastSignedInAccount menampilkan null, pengguna belum
login ke aplikasi Anda dengan Google. Perbarui UI Anda untuk menampilkan tombol Login dengan Google.
Menambahkan tombol Login dengan Google ke aplikasi Anda
Tambahkan SignInButton
di tata letak aplikasi Anda:
Opsional: Jika Anda menggunakan grafis tombol login default, bukan menyediakan aset tombol login Anda sendiri, Anda dapat menyesuaikan ukuran tombol dengan metode setSize.
// Set the dimensions of the sign-in button.SignInButtonsignInButton=findViewById(R.id.sign_in_button);signInButton.setSize(SignInButton.SIZE_STANDARD);
Di aktivitas Android (misalnya, dalam metode onCreate), daftarkan
OnClickListener tombol Anda untuk membuat pengguna login saat diklik:
Dalam metode onClick aktivitas, tangani ketukan tombol login dengan membuat
intent login dengan metode getSignInIntent, dan memulai intent dengan startActivityForResult.
Memulai intent akan meminta pengguna memilih Akun Google yang akan digunakan untuk login. Jika Anda meminta cakupan di luar profile, email, dan openid, pengguna juga akan diminta untuk memberikan akses ke resource yang diminta.
Setelah pengguna login, Anda bisa mendapatkan objek GoogleSignInAccount
untuk pengguna di metode onActivityResult aktivitas.
Anda juga bisa mendapatkan alamat email pengguna dengan getEmail,
ID Google pengguna (untuk penggunaan sisi klien) dengan getId,
dan token ID untuk pengguna dengan getIdToken.
Jika Anda perlu meneruskan pengguna yang saat ini login ke server backend,
kirim token ID ke server backend Anda
dan validasi token di server.
Konten dan contoh kode di halaman ini tunduk kepada lisensi yang dijelaskan dalam Lisensi Konten. Java dan OpenJDK adalah merek dagang atau merek dagang terdaftar dari Oracle dan/atau afiliasinya.
Terakhir diperbarui pada 2025-07-27 UTC.
[[["Mudah dipahami","easyToUnderstand","thumb-up"],["Memecahkan masalah saya","solvedMyProblem","thumb-up"],["Lainnya","otherUp","thumb-up"]],[["Informasi yang saya butuhkan tidak ada","missingTheInformationINeed","thumb-down"],["Terlalu rumit/langkahnya terlalu banyak","tooComplicatedTooManySteps","thumb-down"],["Sudah usang","outOfDate","thumb-down"],["Masalah terjemahan","translationIssue","thumb-down"],["Masalah kode / contoh","samplesCodeIssue","thumb-down"],["Lainnya","otherDown","thumb-down"]],["Terakhir diperbarui pada 2025-07-27 UTC."],[],[],null,["# Integrate Google Sign-In into Your Android App\n\n| **Warning:**\n|\n| **The Google Sign-In for Android API is outdated and no longer supported.**\n| To ensure the continued security and usability of your app, [migrate your Sign in with\n| Google implementation to Credential Manager](/identity/sign-in/credential-manager-siwg) today. Credential Manager\n| supports passkey, password, and federated identity authentication (such as\n| Sign-in with Google), stronger security, and a more consistent user\n| experience.\n|\n| **For Wear developers:** Credential Manager will be supported in Wear OS\n| 5.1 and later on selected watches. Developers actively supporting Wear OS 3, 4\n| and 5.0 devices with Sign in with Google should continue using Google Sign-in\n| for Android for your Wear applications. Sign in with Google support will be\n| available on Credential Manager APIs for these versions of WearOS at a later\n| date.\n\nTo integrate Google Sign-In into your Android app, configure Google Sign-In and\nadd a button to your app's layout that starts the sign-in flow.\n\nBefore you begin\n----------------\n\nConfigure a Google API Console project and set up your Android Studio project.\n\nConfigure Google Sign-in and the GoogleSignInClient object\n----------------------------------------------------------\n\n1. In your sign-in activity's `onCreate` method, configure Google Sign-In to\n request the user data required by your app. For example, to configure\n Google Sign-In to request users' ID and basic profile information, create a\n [`GoogleSignInOptions`](https://developers.google.com/android/reference/com/google/android/gms/auth/api/signin/GoogleSignInOptions.Builder.html#GoogleSignInOptions.Builder())\n object with the `DEFAULT_SIGN_IN` parameter. To request users' email\n addresses as well, create the `GoogleSignInOptions` object with the\n `requestEmail` option.\n\n ```carbon\n // Configure sign-in to request the user's ID, email address, and basic\n // profile. ID and basic profile are included in DEFAULT_SIGN_IN.\n GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)\n .requestEmail()\n .build();\n ```\n\n If you need to request additional scopes to access Google APIs, specify them\n with [`requestScopes`](https://developers.google.com/android/reference/com/google/android/gms/auth/api/signin/GoogleSignInOptions.Builder.html#requestScopes(com.google.android.gms.common.api.Scope,%20com.google.android.gms.common.api.Scope...)).\n For the best user experience, on sign-in, only request the scopes that are\n required for your app to minimally function. Request any additional scopes\n only when you need them, so that your users see the consent screen in the\n context of an action they performed.\n See [Requesting Additional Scopes](https://developers.google.com/identity/sign-in/android/additional-scopes).\n2. Then, also in your sign-in activity's `onCreate` method, create a\n `GoogleSignInClient` object with the options you specified.\n\n ```scilab\n // Build a GoogleSignInClient with the options specified by gso.\n mGoogleSignInClient = GoogleSignIn.getClient(this, gso);\n ```\n\nCheck for an existing signed-in user\n------------------------------------\n\nIn your activity's `onStart` method, check if a user has already signed in to\nyour app with Google. \n\n```scilab\n// Check for existing Google Sign In account, if the user is already signed in\n// the GoogleSignInAccount will be non-null.\nGoogleSignInAccount account = GoogleSignIn.getLastSignedInAccount(this);\nupdateUI(account);\n```\n\nIf `GoogleSignIn.getLastSignedInAccount` returns a `GoogleSignInAccount` object\n(rather than `null`), the user has already signed in to your app with Google.\nUpdate your UI accordingly---that is, hide the sign-in button, launch your\nmain activity, or whatever is appropriate for your app.\n\nIf `GoogleSignIn.getLastSignedInAccount` returns `null`, the user has not yet\nsigned in to your app with Google. Update your UI to display the Google Sign-in\nbutton.\n| **Note:** If you need to detect changes to a user's auth state that happen outside your app, such as access token or ID token revocation, or to perform cross-device sign-in, you might also call `GoogleSignInClient.silentSignIn` when your app starts.\n\nAdd the Google Sign-in button to your app\n-----------------------------------------\n\n1.\n Add the [`SignInButton`](https://developers.google.com/android/reference/com/google/android/gms/common/SignInButton)\n in your application's layout:\n\n \u003ccom.google.android.gms.common.SignInButton\n android:id=\"@+id/sign_in_button\"\n android:layout_width=\"wrap_content\"\n android:layout_height=\"wrap_content\" /\u003e\n\n2. **Optional** : If you are using the default sign-in button graphic instead of\n providing your own sign-in button assets, you can customize the button's\n size with the [`setSize`](https://developers.google.com/android/reference/com/google/android/gms/common/SignInButton.html#setSize(int))\n method.\n\n ```scilab\n // Set the dimensions of the sign-in button.\n SignInButton signInButton = findViewById(R.id.sign_in_button);\n signInButton.setSize(SignInButton.SIZE_STANDARD);\n ```\n3. In the Android activity (for example, in the `onCreate` method), register\n your button's `OnClickListener` to sign in the user when clicked:\n\n findViewById(R.id.sign_in_button).setOnClickListener(this);\n\nStart the sign-in flow\n----------------------\n\n1.\n In the activity's `onClick` method, handle sign-in button taps by creating a\n sign-in intent with the [`getSignInIntent`](https://developers.google.com/android/reference/com/google/android/gms/auth/api/signin/GoogleSignInClient#getSignInIntent())\n method, and starting the intent with `startActivityForResult`.\n\n @Override\n public void onClick(View v) {\n switch (v.getId()) {\n case R.id.sign_in_button:\n signIn();\n break;\n // ...\n }\n }\n\n ```scdoc\n private void signIn() {\n Intent signInIntent = mGoogleSignInClient.getSignInIntent();\n startActivityForResult(signInIntent, RC_SIGN_IN);\n }\n ```\n\n Starting the intent prompts the user to select a Google Account to sign in\n with. If you requested scopes beyond `profile`, `email`, and `openid`, the\n user is also prompted to grant access to the requested resources.\n2. After the user signs in, you can get a [`GoogleSignInAccount`](https://developers.google.com/android/reference/com/google/android/gms/auth/api/signin/GoogleSignInAccount.html)\n object for the user in the activity's `onActivityResult` method.\n\n ```transact-sql\n @Override\n public void onActivityResult(int requestCode, int resultCode, Intent data) {\n super.onActivityResult(requestCode, resultCode, data);\n\n // Result returned from launching the Intent from GoogleSignInClient.getSignInIntent(...);\n if (requestCode == RC_SIGN_IN) {\n // The Task returned from this call is always completed, no need to attach\n // a listener.\n Task\u003cGoogleSignInAccount\u003e task = GoogleSignIn.getSignedInAccountFromIntent(data);\n handleSignInResult(task);\n }\n }\n ```\n\n The `GoogleSignInAccount` object contains information about the signed-in\n user, such as the user's name. \n\n ```css+lasso\n private void handleSignInResult(Task\u003cGoogleSignInAccount\u003e completedTask) {\n try {\n GoogleSignInAccount account = completedTask.getResult(ApiException.class);\n\n // Signed in successfully, show authenticated UI.\n updateUI(account);\n } catch (ApiException e) {\n // The ApiException status code indicates the detailed failure reason.\n // Please refer to the GoogleSignInStatusCodes class reference for more information.\n Log.w(TAG, \"signInResult:failed code=\" + e.getStatusCode());\n updateUI(null);\n }\n }\n ```\n\n You can also get the user's email address with [`getEmail`](https://developers.google.com/android/reference/com/google/android/gms/auth/api/signin/GoogleSignInAccount.html#getEmail()),\n the user's Google ID (for client-side use) with [`getId`](https://developers.google.com/android/reference/com/google/android/gms/auth/api/signin/GoogleSignInAccount.html#getId()),\n and an ID token for the user with [`getIdToken`](https://developers.google.com/android/reference/com/google/android/gms/auth/api/signin/GoogleSignInAccount.html#getIdToken()).\n If you need to pass the currently signed-in user to a backend server,\n [send the ID token to your backend server](https://developers.google.com/identity/sign-in/android/backend-auth)\n and validate the token on the server."]]
Tambahkan 
Dalam metode