Question

我正在学习如何使用应用内购买，并且最近在我的第一个应用中实现了它。为了在我的手机上测试它，我创建了两个测试帐户并为每个帐户购买了一个项目，两者都不同。当我删除应用程序并重新打开它时，它会尝试恢复两个帐户的数据并提供升级，无论我是否登录。（正在调用paymentQueue: updatedTransactions:并在状态SKPaymentTransactionStateRestored）

中传递事务

这可以通过验证收据来解决吗？我已经对它进行了调查，但由于看起来有点令人生畏，所以一直把它推迟。希望在测试多个帐户时这只是一个问题。

作为参考，我遵循了本指南，但在自定义类中的App Delegate和Product Request中执行了Transaction Observer方法。我也从未对交易进行重新调整，因为显然这已经过时了。 http://troybrant.net/blog/2010/01/in-app-purchases-a-full-walkthrough/

编辑：我刚刚进行了一些测试，发现在作为观察者添加后，在启动时队列中有0个事务，但在调用uidatedTransactions之后有3个。

我的参考代码（对不起，如果它不好我还是新的）：

#pragma mark - SKPaymentTransactionObserver

- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions
{
    NSLog(@"Transactions Count: %d", [[[SKPaymentQueue defaultQueue] transactions] count]);
    for (SKPaymentTransaction *transaction in transactions) {
        switch (transaction.transactionState) {
            case SKPaymentTransactionStatePurchased:
                [self comleteTransaction:transaction];
                break;
            case SKPaymentTransactionStateRestored:
                [self restoreTransaction:transaction];
                break;
            case SKPaymentTransactionStateFailed:
                [self failedTransaction:transaction];
                break;
            default:
                break;
        }
    }
}

//case methods

- (void)comleteTransaction:(SKPaymentTransaction *)transaction
{
    [self provideContent:transaction.payment.productIdentifier];
    [self finishTransaction:transaction wasSuccessful:YES];
}

- (void)restoreTransaction:(SKPaymentTransaction *)transaction
{
    [self provideContent:transaction.originalTransaction.payment.productIdentifier];
    [self finishTransaction:transaction.originalTransaction wasSuccessful:YES];
}

- (void)failedTransaction:(SKPaymentTransaction *)transaction
{
    if (transaction.error.code != SKErrorPaymentCancelled)
        [self finishTransaction:transaction wasSuccessful:NO]; //serious error
    else
        [[SKPaymentQueue defaultQueue] finishTransaction:transaction]; //user cancelled
}

//action methods

- (void)provideContent:(NSString *)productID
{
    //validate app receipt?

    if ([productID isEqualToString:UNLOCK_EVERYTHING_ID])
        [[NSUserDefaults standardUserDefaults] setBool:YES forKey:UNLOCK_EVERYTHING_PURCHASED_KEY];
    else if ([productID isEqualToString:REMOVE_ADS_ID])
        [[NSUserDefaults standardUserDefaults] setBool:YES forKey:REMOVE_ADS_PURCHASED_KEY];
    else if ([productID isEqualToString:BASIC_PACK_ID])
        [[NSUserDefaults standardUserDefaults] setBool:YES forKey:BASIC_PACK_PURCHASED_KEY];
    else if ([productID isEqualToString:CLOTHING_PACK_ID])
        [[NSUserDefaults standardUserDefaults] setBool:YES forKey:CLOTHING_PACK_PURCHASED_KEY];
    else if ([productID isEqualToString:FOOD_PACK_ID])
        [[NSUserDefaults standardUserDefaults] setBool:YES forKey:FOOD_PACK_PURCHASED_KEY];
    else if ([productID isEqualToString:ORIGINAL_PACK_ID])
        [[NSUserDefaults standardUserDefaults] setBool:YES forKey:ORIGINAL_PACK_PURCHASED_KEY];
    [[NSUserDefaults standardUserDefaults] synchronize];
}

- (void)finishTransaction:(SKPaymentTransaction *)transaction wasSuccessful:(BOOL)wasSuccessful
{
    [[SKPaymentQueue defaultQueue] finishTransaction:transaction];

    //post notification that transaction finished
    if (wasSuccessful) {
        [[NSNotificationCenter defaultCenter] postNotificationName:TRANSACTION_SUCCESSFUL object:nil];
    } else {
        [[NSNotificationCenter defaultCenter] postNotificationName:TRANSACTION_UNSUCCESSFUL object:nil];
    }
}

Answer 1

我没有查看该教程，但如果购买过程的任何部分向钥匙串添加了详细信息，则删除应用程序并重新安装它将使钥匙串条目保持不变。该应用程序可能正在检查购买状态...请参阅此处

iphone keychain items persist after application uninstall?

Answer 2

如果其他人遇到同样的问题，我只是通过更改RestoreState案例来解决它，以完成与PurchasedState案例相同的事情。事实证明，使用原始事务进行恢复是不必要的，只会导致问题。

为什么交易在启动时更新？

2 个答案: