An example Android app that integrates PayPal's Log In with PayPal (former PayPal Access) via OpenID Connect.
It's a solution for authenticating and authorizing users by using their existing PayPal account. The needed credentials can be obtained by registering an application over at PayPal's Developer Portal
If you're looking for more information you can check out:
Developer: Tim Messerschmidt - tmesserschmidt@paypal.com