How to upgrade/downgrade subscriptions in Android InAppBilling?

Question

I spent a week looking for solution to upgrade/downgrade subscriptions on Android InAppBilling.

There\'s a reference page about this function: http

Answer 1

This seems to be a mistake/bug from google. They have not updated aidl file correctly. You can probably add this method to aidl file yourself (and figure out correct signature by try&error) but if you can you should wait a little while they get their act together.