It seems that it is quite complicated to implement In-App Billing in an Android app. How could I do this? The sample app from the SDK only has one Activity, which kind of ov
V3: here is an tutorial for a quick start.. He´s using the helper-classes from the google example (Trivial Drive) ... Good as first "Hello Billing" ..
http://www.techotopia.com/index.php/Integrating_Google_Play_In-app_Billing_into_an_Android_Application_%E2%80%93_A_Tutorial