Class GoogleConnect

java.lang.Object

com.codename1.social.Login

com.codename1.social.GoogleConnect

public class GoogleConnect
extends Login

Sign-in-with-Google for Codename One.

As of 2025 Google replaced the legacy Sign-In SDK with the Google Identity Services (GIS) family of APIs. GIS encourages the OAuth 2.0 authorization code flow with PKCE driven from the system browser -- exactly what OidcClient does. New apps should call [#signIn(String, String, String[])] which goes through that modern path and works on every Codename One platform without a native SDK dependency.

The older Login.doLogin() / Login.nativelogin() path remains for source compatibility, and on iOS / Android it still delegates to the native implementation provided by the port (see Ports/iOSPort and Ports/Android). On other platforms the legacy path also now goes through OidcClient instead of the deprecated Oauth2 in-app WebView.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	GOOGLE_ISSUER	Google's well-known OIDC issuer.

Method Summary

Modifier and Type	Method	Description
protected Oauth2	createOauth2()	Creates the oauth2 to be used to login in case no native login is available for this service.
static GoogleConnect	getInstance()	Gets the GoogleConnect singleton instance .
boolean	isNativeLoginSupported()	Returns true if this service supports native login.
AsyncResource<OidcTokens>	signIn(String clientId, String redirectUri, String... scopes)	Modern Google sign-in.
protected boolean	validateToken(String token)	Returns true if the previous granted access token is still valid otherwise false.

Methods inherited from class Login

addScopes, connect, doLogin, doLogin, doLogout, getAccessToken, isPreferRedirectPrompt, isUserLoggedIn, nativeIsLoggedIn, nativelogin, nativeLogout, setAccessToken, setCallback, setClientId, setClientSecret, setOauth2URL, setPreferRedirectPrompt, setRedirectURI, setScope, validateToken

Methods inherited from class Object

clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

GOOGLE_ISSUER

public static final String GOOGLE_ISSUER

Google's well-known OIDC issuer.

See Also:

• Constant Field Values

Method Details

getInstance

public static GoogleConnect getInstance()

Gets the GoogleConnect singleton instance .

Returns

the GoogleConnect instance

isNativeLoginSupported

public boolean isNativeLoginSupported()

Description copied from class: Login

Returns true if this service supports native login. If implementation returns true here, the nativelogin, nativelogout, nativeIsLoggedIn should be implemented

Returns

true if the service supports native login

Specified by:

isNativeLoginSupported in class Login

createOauth2

protected Oauth2 createOauth2()

Description copied from class: Login

Creates the oauth2 to be used to login in case no native login is available for this service.

Returns

Overrides:

createOauth2 in class Login

Returns:

the Oauth2 to be used to login if no native login available and on the simulator

signIn

public AsyncResource<OidcTokens> signIn(String clientId,
 String redirectUri,
 String... scopes)

Modern Google sign-in. Goes through the Google Identity Services OIDC endpoints with PKCE, using the system browser. Works the same on every platform (iOS, Android, JavaSE, Web) provided the platform port wires the system browser native interface; otherwise it falls back to an in-app browser window.

Parameters

• clientId: OAuth 2.0 client ID issued in Google Cloud Console. Use the iOS / Android client for the matching native build, or the Web client when running in the simulator / web port.
• redirectUri: Redirect URI registered for that client. Custom schemes (com.example.app:/oauth2redirect) for mobile; HTTPS for web.
• scopes: OAuth scopes to request -- include openid email profile to get an ID token plus user metadata, plus any Google API scopes you need.

Returns

An AsyncResource resolving to the OidcTokens for the signed-in user.

Since

8.0

validateToken

protected boolean validateToken(String token)

Description copied from class: Login

Returns true if the previous granted access token is still valid otherwise false.

Parameters

• token: the access token to check

Returns

true of the token is valid

Specified by:

validateToken in class Login