google_sign_in.dart

if (!kIsWeb && Platform.isAndroid) {
  GoogleSignIn googleSignIn = GoogleSignIn(
    scopes: <String>['email'],
  );

  try {
    GoogleSignInAccount account = (await googleSignIn.signIn())!;

    // Send the account.serverAuthCode to your server to exchange it for the token
    await validateEmailWithGoogleAndLogin(account.serverAuthCode!);
    
    // As we do not really use the sign in features of the plugin,
    // we need to sign out the user after we get the email from the access token on the server,
    // so next time the user signs out in the app,
    // he won’t be silently signed in into the Google account and see the Google sign in page instead.
    await googleSignIn.signOut();
  } catch (e) {}
}