What should the app do in response to a deferred SKPaymentTransaction?

Question

I have in-app purchases in my app, and new to iOS 8 are \"deferred\" transactions, partially described in a tech note

I understand what it does and that I need to not bl

Answer 1

What I am doing is:

1. Stopping indicator animation
2. Activating buy and restore buttons
3. Showing an alert:

Waiting For Approval
Thank you! You can continue to use Altershot while your purchase is pending an approval from your parent.

I watched WWDC 14 video. Apple says you should't block UI and allow to click on buy button again. I think we need this in case parent miss alert, so child can send one more.

What I know is that we should not call following method for deferred transactions:

[[SKPaymentQueue defaultQueue] finishTransaction:transaction];

Answer 2

The code bellow will allow you to check if the product ID you want to sell is in deferred mode. Use it to update the UI accordingly.

if ([[SKPaymentQueue defaultQueue].transactions count] > 0) {
    for (SKPaymentTransaction *transaction in [SKPaymentQueue defaultQueue].transactions) {
        if ([@"your.product.id"  isEqualToString:transaction.payment.productIdentifier]) {
            if (transaction.transactionState ==  SKPaymentTransactionStateDeferred) {
                // update UI that you are still waiting for parent approval. You'll get "PURCHASED" if parent approved or "FAILD" if parent declined or 24 hours passed since request.
            }
            break;
        }
    }
}