Hi @Reece_Smith ,
Unfortunately no, we do not have example project for such case.
You should obtain authorization URL using following route route Social and OAuth2 Logins - Backendless REST API Documentation . After that show this URL to your user using WebView (WebView | Android Developers) and subscribe app to events of this view (WebViewClient | Android Developers). Your app should listen to event which is triggered when Backendless returns user info with auth-token. When such event received, read user data, close view and extract user auth token from user data.
More information about Authorization URL.
Authorization URL will lead user to Google Auth dialog. When user completes authorization in that dialog, Google will redirect him to the Backendless route which will complete authorization in Backendless and will return user info with user token.
I hope that this information will help you.
Regards, Andriy