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POHandle cancelled IAP transactions
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Id
5788507
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AcceptedAnswerId
5789228
AnswerCount
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CommentCount
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CreationDate
2011-04-26T09:37:44.897
FavoriteCount
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2016-01-26T22:41:04.317
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Body
I'm using StoreKit for in-app purchases. I'm finding that the API is quirky in its behavior when the user presses the "Cancel" button. For example, if I push Cancel on the "Confirm Your In App Purchase" screen, I get a <code>SKPaymentTransactionStateFailed</code> transaction with <code>error.code == SKErrorPaymentCancelled</code> as I'd expect. But if I push Buy and then press Cancel, I get a <code>Failed</code> transaction with <code>error.code == 0</code>. The <code>error.localizedDescription</code> is "Cannot connect to iTunes Store" which is clearly a lie. It's tempting to treat all <code>Failed</code> transactions as ignorable cancellations, but I can also clearly see that if the device is offline in airplane mode, I get a <code>Failed</code> transaction with no alert popup; I should really notify the user to explain the problem in that case. I note that <a href="https://github.com/MugunthKumar/MKStoreKit">MKStoreKit</a> assumes all failures are cancellations. <code>MKStoreManager</code>'s <a href="https://github.com/MugunthKumar/MKStoreKit/blob/master/MKStoreObserver.m"><code>failedTransaction</code></a> method is never called; <code>MKStoreObserver</code> always calls <code>transactionCanceled</code> for all <code>Failed</code> transactions. The <code>MKStoreManager.h</code> comments <a href="https://github.com/MugunthKumar/MKStoreKit/blob/master/MKStoreManager.h#L53">recommend no error message</a> for <code>transactionCanceled</code>, which makes sense, but then who will notify the user about <code>Failed</code> non-cancelled transactions? What's the best practice for handling these failures? Should I swallow errors? Always show an error, even if it's redundant?
Tags
<iphone><in-app-purchase><storekit>
Title
Handle cancelled IAP transactions
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PostAcceptedAnswerId
1. PO
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 PTAnswer
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1. PTQuestion
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UserOwnerUserId
1. USDan Fabulich
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1. PO
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2. PO
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3. PO
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 POHandle cancelled IAP transactions
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