iPhone – 关闭应用内购买？

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;
        }
    }
}