Objective c 应用内购买：正确处理finishTransaction

我有一个问题，一些用户支付了应用程序内的购买费用，但应用程序对此没有反应；因此，我的问题是这样处理是否正确：

- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions {
    for (SKPaymentTransaction *transaction in transactions) {
        switch (transaction.transactionState) {
            case SKPaymentTransactionStatePurchasing:
                break;
            case SKPaymentTransactionStatePurchased:
                [self handlePurchase]; // seems like this isn't called sometimes

                // Remove the transaction from the payment queue.
                [queue finishTransaction:transaction];
                break;
            case SKPaymentTransactionStateFailed:
                // Remove the transaction from the payment queue.
                [queue finishTransaction:transaction];

                [self handleCancel];
                break;
            case SKPaymentTransactionStateRestored:
                [self handlePurchase]; // or this isn't called someimtes

                // Remove the transaction from the payment queue.
                [queue finishTransaction:transaction];
                break;
            default:
                break;
        }
    }
}

---

这样队列处理是否正确？

finishTransaction

具体做什么？是否应仅在成功案例中调用它？

是的，您必须在所有案例中调用

finishTransaction

。-您是否记得将此对象作为付款观察员？你有什么证据证明有问题？你不是在模拟器上测试，是吗？这不起作用…来自SKPaymentQueue.h://异步。从队列中删除已完成（即失败或已完成）的事务。试图完成采购事务将引发异常。--因此，您不将其称为采购交易是正确的。您的switch语句应该是正确的。