the product ID
an activity
true if the user owns sku
, false otherwise
product ID
context
the details of sku
or a failure with NoSuchElementException if sku
does not exist
Initiates the purchase of sku
.
Initiates the purchase of sku
.
The returned Future fails with an IapException, for example InvalidSkuException, AlreadyPurchasedException or PurchaseCanceledException if the purchase is not completed successfully.
product id
context
the purchased SKU