===================================================================== 인앱결제만들기 결제라이브러리3(Billing Library Version 3)이상 간단구현링크:- developer.android.com/google/play/billing/integrate?hl=ko //- puch-android.tistory.com/5 //- witcheryoon.tistory.com/168 //- gamjatwigim.tistory.com/93 //- wonsohana.wordpress.com/2020/11/02/android-inappbilling-example-%EC%95%88%EB%93%9C%EB%A1%9C%EC%9D%..
