iPhone – 关闭应用内购买？

当使用[[SKPaymentQueue defaultQueue] restoreCompletedTransactions];时,Apple将在SKPaymentQueue中返回所有已完成的事务,这是一组事务.该交易将包含付款对象.付款对象将包含productIdentifier.删除后,此信息可用.因此,您可以兑现过去不再购买的购买.

这是一些示例代码：

[[SKPaymentQueue defaultQueue] restoreCompletedTransactions];

#pragma mark SKPayment Observer Delegate methods
- (void) paymentQueueRestoreCompletedTransactionsFinished:(SKPaymentQueue *)queue
{
    NSLog(@"received restored transactions: %i",queue.transactions.count);
    for (SKPaymentTransaction *transaction in queue.transactions)
    {
        NSLog(@"tran for product: %@ of state: %i",[[transaction payment] productIdentifier],[transaction transactionState]);
        switch ([transaction transactionState])
        {
            case SKPaymentTransactionStateRestored:
                NSLog(@"found restored transaction: %@ productIdentifier: %@",transaction.transactionIdentifier,transaction.payment.productIdentifier);
                [self yourRestoreProcessSelector:transaction];
                break;
            default:
                break;
        }
    }
}