PT.BUZOO INDONESIA is No1 Japanese offshore development company in Indonesia. We are professional of web solution and smartphone apps. We can support Japanese, English and Indonesia. We are hiring now at http://buzoo.co.id/

1. By : Franky Wijanarko
PT. BUZOO INDONESIA

2. In-app Billing is a Google Play service that lets
you sell digital content from inside your
applications
 You can use In-app Billing to sell products as:
- Standard in-app products (one-time billing),
- Subscriptions, (recurring, automated billing)
 Any application that you publish through Google
Play can implement In-app Billing.


3. In-app Billing version 1 March 2011
 In-app Billing version 2 May 2012
 In-app Billing version 3 February 2013


4. 
Managed In-app Products
This means that the user's ownership of all in-app
item purchases is maintained by Google Play, and
your application can query the user's purchase
information when needed.

5. 2 Types of Managed In-app Products :
◦ Non-consumable Items
Once purchased, these items will be permanently associated to
the user's Google account. An example of a non-consumable inapp product is a premium upgrade or a level pack.
◦ Consumable items
Implement consumption for items that can be made available for
purchase multiple times. Typically, these items provide certain
temporary effects. For example, the user's in-game character
might gain life points or gain extra gold coins in their inventory.

6. 
Subscriptions
A subscription is a product type offered in In-app
Billing that lets you sell content, services, or
features to users from inside your app with
recurring monthly or annual billing.

7. 
To implement In-app Billing in your application,
you need to do the following:
1.
Installing the Google Play Billing Library
Check whether or not the library is installed by
launching the Android SDK Manager by selecting the
Eclipse Window -> Android SDK Manager menu
option, scroll down to the Extras section and the Status
column next to the Google Play Billing Library

9. 2. Adding Billing Permission to the Manifest File

10. 3. Adding the IInAppBillingService.aidl File to the Project

11. 4. Adding the Utility Classes to the Project

12. 5. Obtaining the Public License Key for the Application


Create new Application
Click on the Services & APIs option to display the Base64encoded RSA public key for the application

13. 6. Setting Up Google Play Billing in the Application

14. After success, we can add additional code to get an
inventory
of
stuff
we
own
:
mHelper.queryInventoryAsync(mGotInventoryListener);
mGotInventoryListener -> Listener that's called when
we finish querying the items and subscriptions we own

16. 7. Initiating a Google Play In-app Billing Purchase
NOTE:

MainActivity.this -> A reference to the enclosing Activity instance from which the method is being
called

ITEM_SKU -> The SKU that identifies the product that is being purchased

10001 -> he request code which can be any positive integer value

mPurchaseFinishedListener -> The listener method to be called when the purchase is complete

"<payload>" -> The developer payload string. This can be any string value and can be used to
identify the purchase, or may be left empty

17. 8. Implementing the onActivityResult Method

18. 9.
Implementing the Purchase Finished Listener
If we use new Security.java, it cause a problem when using SKU testing. So we have to
replace verifyPurchase function with the old version of Security.java

19. 10. Releasing the IabHelper Instance
11. Testing the In-app Billing Application

20. 12. Creating a New In-app Product





We have to upload signed APK to Google Play Developer
Console.
Create a new product, set the product type to Managed
product, enter a Product ID (it wil be our ITEM_SKU).
In the second screen enter a title, description and price for
the item.
Change the menu at the top of the page to Activate.
Save

21. 13. Adding In-app Billing Test Accounts

Google will not allow developers to make test purchases
from their own Google accounts.

In order to test in-app billing from this point on, it will be
necessary to setup other Google accounts as testing
accounts.

To add a test user account :

Click on the Settings icon located on the left hand side of your Google Play Developer Console
home screen and on the account details screen scroll down to the License Testing section. In the
Settings icon located on the left hand side of your Google Play Developer Console.

Scroll down to the License Testing.

22. As long as the application remains in draft status
within the Google Play Developer console, no charges
will be incurred by the user whilst testing the in-app
billing
Resource:
 Sprix Project
 http://developer.android.com/google/play/billing/index.html
 http://www.techotopia.com/index.php/Integrating_Goo
gle_Play_In-app_Billing_into_an_Android_Application_
%E2%80%93_A_Tutorial

23. Thank you