ios 应用内购买：SKPaymentTransactionStateRestored 何时以及为何作为交易状态发回？

Question

iOS 应用内购买：SKPaymentTransactionStateRestored 何时以及为何作为交易状态发回？

这与定期订阅计划有关吗？

Answer 1

当您通过向 SKPaymentQueue 发送 restoreCompletedTransactions 消息来恢复用户的购买时，您会收到 SKPaymentTransactionStateRestored 交易，而不是 SKPaymentTransactionStatePurchased 交易>。

Answer 2

一般规则是处理两个回调：购买和恢复购买。

- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions
{
for (SKPaymentTransaction *transaction in transactions)
    {
    switch (transaction.transactionState)
        {
        case SKPaymentTransactionStatePurchased:
            [self completeTransaction:transaction];
            break;

        case SKPaymentTransactionStateFailed:
            [self failedTransaction:transaction];
            break;

        case SKPaymentTransactionStateRestored:
            [self restoreTransaction:transaction];

        default:
            break;
        }
    }
}

- (void) completeTransaction: (SKPaymentTransaction *)transaction
{
[self recordTransaction: transaction content:transaction.payment.productIdentifier];

[[SKPaymentQueue defaultQueue] finishTransaction: transaction];
}

- (void) restoreTransaction: (SKPaymentTransaction *)transaction
{
[self recordTransaction: transaction content:transaction.originalTransaction.payment.productIdentifier];

[[SKPaymentQueue defaultQueue] finishTransaction: transaction];
}