stopObservingTransactionQueue method

Future stopObservingTransactionQueue()

Instructs the iOS implementation to remove the transaction observer and stop listening to it.

Call this when there are no longer any listeners subscribed to the InAppPurchaseIosPlatform.purchaseStream.

Implementation

Future stopObservingTransactionQueue() => channel
    .invokeMethod<void>('-[SKPaymentQueue stopObservingTransactionQueue]');