GoogleBilling
Supported platforms: File:Platform android
Available since: Gideros 2012.09
Description
The `GoogleBilling` class is defined in the module "googlebilling". Therefore, you need to call
`require("googlebilling")` before using it. Loading the Google Billing module
also creates a global variable `googlebilling` of type `GoogleBilling` for direct use.
<h3>GoogleBilling Events and Response Codes</h3>
`GoogleBilling` class dispatches 5 events: `Event.CHECK_BILLING_SUPPORTED_COMPLETE`,
`Event.REQUEST_PURCHASE_COMPLETE`,`Event.RESTORE_TRANSACTIONS_COMPLETE`,
`Event.CONFIRM_NOTIFICATION_COMPLETE` and `Event.PURCHASE_STATE_CHANGE`.
`Event.*_COMPLETE` events contains a field `event.responseCode` which provides status information
and error information about a request. Response code can be one of these values:
<ul>
<li>`GoogleBilling.OK`: Indicates that the request was sent to the server successfully. When this code is returned</li>
</ul>
in response to a `checkBillingSupported` function, indicates that billing is supported.
<ul>
<li>`GoogleBilling.USER_CANCELED`: Indicates that the user pressed the back button on the checkout page instead of buying the item.</li>
<li>`GoogleBilling.SERVICE_UNAVAILABLE`: Indicates that the network connection is down.</li>
<li>`GoogleBilling.BILLING_UNAVAILABLE`: Indicates that in-app billing is not available because the API version that</li>
</ul>
you specified is not recognized by the Google Play application or the user is ineligible for in-app billing
(for example, the user resides in a country that prohibits in-app purchases).
<ul>
<li>`GoogleBilling.ITEM_UNAVAILABLE`: Indicates that Google Play cannot find the requested item in the application's product list.</li>
</ul>
This can happen if the product ID is misspelled in your `requestPurchase` function or if an item is unpublished in the application's product list.
<ul>
<li>`GoogleBilling.DEVELOPER_ERROR`: Indicates that an application is trying to make an in-app billing request but the application has not declared the</li>
</ul>
com.android.vending.BILLING permission in its manifest. Can also indicate that an application is not properly signed,
or that you sent a malformed request, such as a request with missing Bundle keys or a request that uses an unrecognized request type.
<ul>
<li>`GoogleBilling.ERROR`: Indicates an unexpected server error. For example, this error is triggered if you try to purchase an item from yourself, which is not allowed by Google Wallet.</li>
</ul>
<h3># Event.CHECK_BILLING_SUPPORTED_COMPLETE</h3>
Dispatched when `checkBillingSuported` function completes. It contains `event.responseCode` and `event.productType` fields.
<h3># Event.REQUEST_PURCHASE_COMPLETE</h3>
Dispatched when `requestPurchase` function completes. It contains `event.responseCode`, `event.productId`, `event.productType` and `event.developerPayload` fields.
<h3># Event.RESTORE_TRANSACTIONS_COMPLETE</h3>
Dispatched when `restoreTransactions` function completes. It contains `event.responseCode` fields.
<h3># Event.CONFIRM_NOTIFICATION_COMPLETE</h3>
Dispatched when `confirmNotification` function completes. It contains `event.responseCode` and `event.notificationId` fields.
<h3># Event.PURCHASE_STATE_CHANGE</h3>
Dispatched when information about a transaction is received. It contains `event.purchaseState`, `event.productId`, `event.notificationId`, `event.purchaseTime` and `event.developerPayload` fields.
