Callback interface that the main class may implement to be notified of pending purchases.
Callback interface that the main class must implement in order for in-app-purchasing to work.
Interface that can be implemented to provide store of receipts.
Callback interface that the main class must implement in order for the restore option of in-app-purchasing to work.
Represents a product within the system
Represents the status of in-app-purchase goods, this class provides information about products purchased by a user as well as the ability to purchase additional products.
Encapsulates a receipt for an in-app purchase.