New Google Sign-In API

Google Identity Services (GIS) is a new set of APIs that provides users easy and secure sign-in and sign-up, in an easy-to-implement package for developers. This document details a new Google sign in API (part of GIS) that can be used to start the sign-in or sign-up flow when a user taps on a "Sign-In with Google" button. This API can be used instead of the existing Google Sign-In APIs for sign in flows.

You should use this API only when the user explicitly shows intent to sign in with Google. For example, use this API when they click a "Sign in with Google" button in your app.

You should not use this API to prompt the user to sign-in on app launch or in response to another trigger such as adding an item to the shopping cart. For these use cases, use One Tap sign-in and sign-up.

When you start the Google Sign-In flow with the new API, it will display this UI:

Google Sign-In

Before you begin

Configure a Google API Console project and set up your Android Studio project.

Make a sign-in request

To launch a Google Sign-In flow using the Identity API build a GetSignInRequest object. Then, on a SignInClient object call getSignInIntent. This call is async and on success it will provide a PendingIntent to launch the dialog.

    private static final int REQUEST_CODE_GOOGLE_SIGN_IN = 1; /* unique request id */

    private void signIn() {
        GetSignInIntentRequest request =

                    result -> {
                        try {
                                    /* fillInIntent= */ null,
                                    /* flagsMask= */ 0,
                                    /* flagsValue= */ 0,
                                    /* extraFlags= */ 0,
                                    /* options= */ null);
                        } catch (IntentSender.SendIntentException e) {
                            Log.e(TAG, "Google Sign-in failed");
                    e -> {
                        Log.e(TAG, "Google Sign-in failed", e);

Handle sign in results

In onActivityResult retrieve a SignInCredential. The SignInCredential object returned from getSignInCredentialFromIntent contains information about a valid login. If the user fails to log in for some reason, an ApiException is thrown.

    public void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if(resultCode == Activity.RESULT_OK) {
            if (requestCode == REQUEST_CODE_GOOGLE_SIGN_IN) {
                try {
                    SignInCredential credential = Identity.getSignInClient(this).getSignInCredentialFromIntent(data);
                    // Signed in successfully - show authenticated UI
                } catch (ApiException e) {
                    // The ApiException status code indicates the detailed failure reason.
private ActivityResultLauncher<IntentSenderRequest> loginResultHandler = registerForActivityResult(new ActivityResultContracts.StartIntentSenderForResult(), result -> {
    // handle intent result here

The result of a successful sign in always returns the users full name, email, and profile picture url. If you need additional information you can direct users into a complete profile information flow.