Question

I got rejected by Apple with a message saying:

… Additionally, we found that while your app offers In-App Purchase(s)
that can be restored, it does not include the required “Restore”
feature to allow users to restore the previously purchased In-App
Purchase(s), as specified in Restoring Transactions section of the
In-App Purchase Programming Guide:

“…if your application supports product types that must be
restorable, you must include an interface that allows users to restore
these purchases. This interface allows a user to add the product to
other devices or, if the original device was wiped, to restore the
transaction on the original device.”

To restore previously purchased In-App Purchase products, it would be
appropriate to provide a “Restore” button and initiate the restore
process when the “Restore” button is tapped by the user.

For more information about restoring transactions and verifying store
receipt, please refer to the In-App Purchase Programming Guide.
…

And I found this page, and I followed the sample code , but after I called

- (void) checkPurchasedItems{
   [[SKPaymentQueue defaultQueue] restoreCompletedTransactions];
}

another delegate was not fired!

- (void) paymentQueueRestoreCompletedTransactionsFinished:(SKPaymentQueue *)queue

It only popups an alert view, to let you enter your Apple ID … and nothing happened?

I set a break point, but it wouldn’t stop as the example said.

Any ideas on what’s wrong with my code?

Answer 1

In addition to adding restoreCompletedTransactions, you need to handle how your iaps are actually restored to the user and how the content is provided to the user.

Basically, you need to recall the way you provide the item to your user when they originally purchased it.

Here is a good tutorial.

For example, this is how I restore products in one of my apps.

Restore Transaction

- (void)restoreTransaction:(SKPaymentTransaction *)transaction
{
    isRestoring = YES;

    [self recordTransaction: transaction];

    /* This is where I provide the content to the user: */
    [self provideContent: transaction.originalTransaction.payment.productIdentifier];

    [[SKPaymentQueue defaultQueue] finishTransaction: transaction];
}

Transaction Completed

- (void)completeTransaction:(SKPaymentTransaction *)transaction
{
    [self recordTransaction: transaction];
    [self provideContent: transaction.payment.productIdentifier];
    [[SKPaymentQueue defaultQueue] finishTransaction: transaction];
}

Payment Queue

- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions
{
    for (SKPaymentTransaction *transaction in transactions)
    {
        switch (transaction.transactionState)
        {
            case SKPaymentTransactionStatePurchased:
                [self completeTransaction:transaction];
                break;
            case SKPaymentTransactionStateFailed:
                if (transaction.error.code == SKErrorPaymentCancelled) {
                    /// user has cancelled
                    [[NSNotificationCenter defaultCenter] postNotificationName:@"hideRestoring" object:nil];
                }
                [self failedTransaction:transaction];
                break;
            case SKPaymentTransactionStateRestored:
                [self restoreTransaction:transaction];
            default:
                break;
        }
    }
}

Provide the Content

- (void)provideContent:(NSString *)productIdentifier
{
    int index;

    NSMutableDictionary * purchased = [NSMutableDictionary dictionaryWithContentsOfFile:EXTRAS_PATH];

    NSArray * availableProducts = [NSArray arrayWithContentsOfURL:[NSURL URLWithString:SCANNER_IN_APP_PURCHASES]];

    if ( isRestoring )
    {
        for ( index = 0; index < [availableProducts count]; index++ )
        {
            //NSLog(@"productIdentifier: %@",productIdentifier);
            //NSLog(@"Product: %@",[availableProducts objectAtIndex:index]);

            if ( [productIdentifier isEqualToString:[[availableProducts objectAtIndex:index] objectForKey:@"BundleID"]] )
            {
                [purchased setObject:[availableProducts objectAtIndex:index] forKey:productIdentifier];

                [purchased writeToFile:EXTRAS_PATH atomically:YES];

                [_purchasedProducts addObject:productIdentifier];
            }
        }
    }
    else
    {
        index = [[[NSUserDefaults standardUserDefaults] objectForKey:@"kTempProductPurchasingIndex"] intValue];

        if ( [productIdentifier isEqualToString:[[availableProducts objectAtIndex:index] objectForKey:@"BundleID"]] )
        {
            [purchased setObject:[availableProducts objectAtIndex:index] forKey:productIdentifier];

            [purchased writeToFile:EXTRAS_PATH atomically:YES];

            [_purchasedProducts addObject:productIdentifier];
        }
    }

    [[NSNotificationCenter defaultCenter] postNotificationName:kProductPurchasedNotification object:productIdentifier];
}