显示应用内购买 UIAlertView 时如何隐藏我的等待屏幕？

Question

我添加了一个 UIAlertView，它具有 UIActivityIndi​​catior 作为我的应用程序的子视图。此 alertView 仅在购买进行时显示。显示应用内购买 UIAlertView 时如何隐藏我的等待屏幕？

- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions
{
    for (SKPaymentTransaction *transaction in transactions)
    {
        switch (transaction.transactionState)
        {
            case SKPaymentTransactionStatePurchasing:
                [self stillPurchasing]; // this show a waiting screen
                break;
            case SKPaymentTransactionStatePurchased:
                NSLog(@"2");
                [self completeTransaction:transaction];
                break;
            case SKPaymentTransactionStateFailed:
                [self failedTransaction:transaction];
                break;
            case SKPaymentTransactionStateRestored:
                 NSLog(@"4");
                [self restoreTransaction:transaction];
                break;
            default:
                NSLog(@"5");
                break;
        }
    }
}

谢谢。

Answer 1

如果您保留它直到购买操作完全完成会更有用.. 这意味着在情况 1 (SKPaymentTransactionStatePurchased) 中您隐藏了指示符，也不要忘记隐藏它以防购买失败。