Need a working code, with explanations, for android studio. "Trial versions of applications" How to implement?

Question

Android

Google Play
subscriptions https://support.google.com/googleplay/answer/24760...
But a quick search didn't help to find how to implement this for the developer.
Help me find an example of a working code that implements this payment method.
And as a demo, in the form of a single-page application, it would be generally ideal!

Answer 1

www.slideshare.net/dmitrijmakeev/google-play-billi... won't work?

Answer 2

In the sdk in the extras directory there is an example from Google on the implementation of InApp
And the site clearly describes
developer.android.com/google/play/billing/billing_...