Implement google oAuth2

Question

I am just trying to authenticate my login via google. The user must enter his ID and Password and I must validate the login in the app itself (with no web view). I have tried to figure this out myself but not able to :( .Can any suggest me where and how should I start? and what are the jar's I may need to download? Any help would be greatly appreciated.

Answer 1

Google Play Services was created and released recently for simplifying the process of OAuth for Google products. You might want to start here - Auth with Play Services

The user device should have the Play Services APK installed to get the full use out of this, but Google says most devices above Android 2.1 who used the Play Store should have these services on the device, ready to be used.

Also read the Setting up section to see how you need to set up your project and device to use these services.