Authenticating to OAuth2 Services. Google Play services offers a standard authorization flow for all Google APIs and all components of Google Play services.
In addition, you can leverage the authorization portion of the Google Play services SDK to gain authorization to services that are not yet supported in the Google Play services platform by using the access token to manually make API requests or using a client library provided by the service provider. For implementation details, see the sample in <android-sdk>/extras/google-play-services/samples/auth, which shows you how to carry out these basic steps for obtaining an access token.
Choosing an Account Google Play services leverage existing accounts on an Android-powered device to gain authorization to the services that you want to use. To obtain an access token, a valid Google account is required and it must exist on the device. At AnalyseSI. Random tips for python.