Question

I’m writing an app that uses inApp Purchase system but i can’t find a way to stop a transaction out the transaction observer methods. I need this behaviour cause in low connectivity situation i wanna give to the users the ability to stop the connection to the apple server. I don’t want at the same time that one or more default purchase alert appears maybe 2 or 3 minutes after… So the best solution is to stop completely the payment procedure by an uibutton and an Action. I have tried something like this,but it doesn’t work.

---

    -(IBAction)ClosePayment{

       for (SKPaymentTransaction *transaction in  [[SKPaymentQueue defaultQueue]transactions])  {
          [[SKPaymentQueue defaultQueue] finishTransaction:transaction];
       }

    }

This Action crash the application, i’ve tried also;

    [[SKPaymentQueue defaultQueue]removeTransactionObserver:self];

This don’t generate any error but simply don’t work.

Answer 1

It seems impossible to stop SKPaymentTransaction during the “purchasing” state… I have also tried to initialize the related SKPayment object without a TransactionObserver (only for testing purpose…). Without a TransactionObserver the purchase will not work correctly but the first alert of the inapp purchase system will still display to the user. Nothing in documentation support a “stop”, so i think that maybe is possible only with some private API.