iphone - iOS - 如何在 iPhone 交易成功后从 paypal 检索交易 ID

Question

我是 iPhone 开发的新手，我已经在我的 iPhone 应用程序中实现了 paypal sdk 并检查了沙箱环境，一切都运行良好， 但是我需要找到成功完成后 Paypal 返回的交易ID。 我在下面检查了这个功能

- (void)paymentSuccessWithKey:(NSString *)payKey andStatus:(PayPalPaymentStatus)paymentStatus 
{
     status = PAYMENTSTATUS_SUCCESS;
}

但是它只显示状态。

Answer 1

您看过 PayPal 提供的示例应用程序了吗？这是示例应用程序中的委托(delegate)方法，按照此操作您可以从中获取 transactionId...

//paymentSuccessWithKey:andStatus: is a required method. in it, you should record that the payment
//was successful and perform any desired bookkeeping. you should not do any user interface updates.
//payKey is a string which uniquely identifies the transaction.
//paymentStatus is an enum value which can be STATUS_COMPLETED, STATUS_CREATED, or STATUS_OTHER
- (void)paymentSuccessWithKey:(NSString *)payKey andStatus:(PayPalPaymentStatus)paymentStatus 
{
    NSString* transactionId = [[NSString alloc] initWithString:[payKey substringFromIndex:3]];
    status = PAYMENTSTATUS_SUCCESS;

    [self messageAlert:[NSString stringWithFormat:@"%@",transactionId] 
             title:@"Transaction success" delegate:nil];
    [transactionId release];
}