PurchasingManager.initiateGetUseridRequest()
PurchasingObserver
PurchasingObserver.onGetUserIdResponse(GetUserIdResponse)
PurchasingManager.initiateItemDataRequest(java.util.Set)
PurchasingObserver.onItemDataResponse(ItemDataResponse)
PurchasingManager.initiatePurchaseRequest(String)
PurchasingObserver.onPurchaseResponse(PurchaseResponse)
PurchasingManager.initiatePurchaseUpdatesRequest(Offset)
PurchasingObserver.onPurchaseUpdatesResponse(PurchaseUpdatesResponse)
PurchasingManager.registerObserver(PurchasingObserver)
PurchasingManager