public void OnBillingSetupFinished(BillingResult result) { Log.Debug(TAG, "OnBillingSetupFinished()"); if (result.ResponseCode != BillingResponseCode.Ok) { Log.Debug(TAG, "Billing setup failed with code " + result.ResponseCode.ToString()); } SkuDetailsParams.Builder details_builder = SkuDetailsParams.NewBuilder(); details_builder.SetSkusList(skuList).SetType(BillingClient.SkuType.Inapp); billingClient.QuerySkuDetails(details_builder.Build(), this); }