Can anyone use Google+ in an Android app? I searched the same, but didn’t find anything. If anyone has an idea or related code, please write here.
Thanks.
There is no public API yet, but you can subscribe to updates here:
https://services.google.com/fb/forms/plusdevelopers/
The Java core library is available here: http://code.google.com/p/javaplus/
And the PHP core library is here: https://github.com/jmstriegel/php.googleplusapi
Here is a link to the Google API. https://developers.google.com/+/mobile/
You can create your application and add several APIs to it (Youtube, Google+, etc.). There are several examples.
Hope he is helpful
You can also try http://code.google.com/p/google-plus-java-api/
The integration of Google Plus in your Android application requires the following prerequisites.
Enable the Google+ API on the Developer Console and create credentials to authenticate your application.
Set up Google Play services in Eclipse
Build an Android App with Google Plus Login
You can check out tutorail's detailed step by step
http://androidsrc.net/integrating-google-plus-sign-in-into-your-android-application/