public void onConsumeFinished(Purchase purchase, IabResult result) { Log.d(TAG, "Consumption finished. Purchase: " + purchase + ", result: " + result); // We know this is the "gas" sku because it's the only one we consume, // so we don't check which sku was consumed. If you have more than one // sku, you probably should check... if (result.isSuccess()) { // successfully consumed, so we apply the effects of the item in our // game world's logic, which in our case means filling the gas tank a bit Log.d(TAG, "Consumption successful. Provisioning."); mTank = mTank == TANK_MAX ? TANK_MAX : mTank + 1; saveData(); alert("You filled 1/4 tank. Your tank is now " + String.valueOf(mTank) + "/4 full!"); } else { complain("Error while consuming: " + result); } updateUi(); setWaitScreen(false); Log.d(TAG, "End consumption flow."); }