无法完成应用购买交易

Question

我遇到了一个问题，要么我可以下载苹果托管的内容，要么可以完成FinishTransaction，但不能同时下载两者；

#pragma mark -
#pragma mark SKPaymentTransactionObserver methods

-(void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray     *)transactions
{
for (SKPaymentTransaction *transaction in transactions)
{

    switch (transaction.transactionState)
    {
        case SKPaymentTransactionStatePurchasing:

                NSLog(@"Purchasing");

            break;

        case SKPaymentTransactionStatePurchased:

            NSLog(@"Transaction State Purchased");

            [[SKPaymentQueue defaultQueue]startDownloads:transaction.downloads];




            break;

        case SKPaymentTransactionStateFailed:

            NSLog(@"Transaction State Failed");

            [[SKPaymentQueue defaultQueue] finishTransaction:transaction];
            [[SKPaymentQueue defaultQueue] removeTransactionObserver:self];

            [self failedTransaction:transaction];

            break;

        case SKPaymentTransactionStateRestored:

             NSLog(@"Transaction State Restored");

            [[SKPaymentQueue defaultQueue] startDownloads:transaction.downloads];
            buyButton.enabled = NO;
            [buyButton setTitle:@"Purchased"
                       forState:UIControlStateDisabled];

            //break;
        default:
            break;

    }
}
}


- (void)paymentQueue:(SKPaymentQueue *)queue updatedDownloads:(NSArray *)downloads;
{
for (SKDownload *download in downloads) {

    switch (download.downloadState) {

        case SKDownloadStateFinished:

            NSLog(@"Completing transaction-B");

            [self processDownload:download];
            [queue finishTransaction:download.transaction];
            [[SKPaymentQueue defaultQueue] finishTransaction:download.transaction];
            [[SKPaymentQueue defaultQueue] removeTransactionObserver:self];

        break;

        case SKDownloadStateActive:


            NSLog(@"%f", download.progress);
            NSLog(@"%f remaining", download.timeRemaining);

        break;

        default:
        break;


    }

}
}

-(void)completeTransaction:(SKPaymentTransaction *)transaction
{ //checked!!

NSLog(@"Complete transaction");

//[[SKPaymentQueue defaultQueue]finishTransaction:transaction];
buyButton.enabled = NO;
[buyButton setTitle:@"Purchased"
           forState:UIControlStateDisabled];
}

通常，代码可以正常工作； 显示产品，我可以选择购买登录请求

然后按照上面的代码进行下载并进行处理（移至“文档”目录）。

但是，如果我在updatedTransactions中完成了Transaction，则不会进行下载。 （说得通！）

如果我调用[self completeTransaction：transaction]从updatedTransactions完成finishTransaction，我将得到相同的结果。

如果我忽略了调用completeTransaction（根据代码），则下载了内容，但是我似乎无法调用完成事务。

我在哪里/如何称呼完成交易？

这么近但是很远!!!

Answer 1

我称完成交易为时过早，我的下载无法完成。