PayPal付款卡"processing"

Question

我已经实现了最新的PayPal API，但每次我试图通过PayPal的沙箱运行支付时，支付都会陷入"处理"。完全被难住了。谢谢

-(void)payWithPayPal {
    NSString *shortDescription = [NSString stringWithFormat:@"%i %@", [Global sharedInstance].currentOrder.itemQuantity, [Global sharedInstance].currentOrder.boozeBrand];
    NSDecimalNumber *paymentDecimal = [NSDecimalNumber decimalNumberWithString:[NSString stringWithFormat:@"%.02f", [Global sharedInstance].currentOrder.itemPrice]];
    NSString *sku = [NSString stringWithFormat:@"DBAR-%i", [Global sharedInstance].currentOrder.orderNumber];
    NSString *name = [NSString stringWithFormat:@"%@", [Global sharedInstance].currentOrder.boozeBrand];
    PayPalItem *item = [PayPalItem itemWithName:name
                                withQuantity:[Global sharedInstance].currentOrder.itemQuantity
                                       withPrice:paymentDecimal
                                    withCurrency:@"USD"
                                         withSku:sku];
    float priceFloat = [item.price floatValue];
    float totalFloat = priceFloat * item.quantity;
    NSDecimalNumber *total = [NSDecimalNumber decimalNumberWithString:[NSString stringWithFormat:@"%.02f", totalFloat]];
    PayPalPayment *payment = [[PayPalPayment alloc] init];
    payment.amount = total;
    payment.currencyCode = @"USD";
    payment.shortDescription = shortDescription;
    payment.items = nil;  // if not including multiple items, then leave payment.items as nil
    payment.paymentDetails = nil; // if not including payment details, then leave payment.paymentDetails as nil
    if (!payment.processable) {NSLog(@"Payment not processable.");}
    // Update payPalConfig re accepting credit cards.
    PayPalPaymentViewController *paymentViewController = [[PayPalPaymentViewController alloc] initWithPayment:payment configuration:self.payPalConfiguration delegate:self];
    [self presentViewController:paymentViewController animated:YES completion:nil];
}

#pragma mark - PayPalDelegate
-(void)payPalPaymentViewController:(PayPalPaymentViewController *)paymentViewController willCompletePayment:(PayPalPayment *)completedPayment completionBlock:(PayPalPaymentDelegateCompletionBlock)completionBlock {
    NSLog(@"Payment processing.");
    //Stuck on this forever - this is what I'm trying to get past
}
-(void)payPalPaymentViewController:(PayPalPaymentViewController *)paymentViewController didCompletePayment:(PayPalPayment *)completedPayment {
    //Never gets here
}

Answer 1

您的问题在willCompletePayment的完成块中，您需要在完成中的处理后返回完成块调用didCompletePayment

来自Paypal代码文档

您的代码必须通过调用completionBlock来完成
completionBlock处理完成后执行的块。

所以你的代码会像一样

- (void)payPalPaymentViewController:(nonnull PayPalPaymentViewController *)paymentViewController
                willCompletePayment:(nonnull PayPalPayment *)completedPayment
                    completionBlock:(nonnull PayPalPaymentDelegateCompletionBlock)completionBlock {
    //do all the code you want
    completionBlock();
}

写完这个完成块后，它将转到didCompletePayment，可以是这样的：

- (void)payPalPaymentViewController:(PayPalPaymentViewController *)paymentViewController didCompletePayment:(PayPalPayment *)completedPayment {
  NSLog(@"PayPal Payment Success!");
  self.resultText = [completedPayment description];
  [self showSuccess];
  [self dismissViewControllerAnimated:YES completion:nil];
}

另一种选择通过检查Paypal示例的代码，不强制实现willCompletePayment方法，您可以跳过此方法，直接编写didCompletePayment

通过这种方式，你的代码可以是这样的：

- (void)payPalPaymentViewController:(PayPalPaymentViewController *)paymentViewController didCompletePayment:(PayPalPayment *)completedPayment {
  NSLog(@"PayPal Payment Success!");
  self.resultText = [completedPayment description];
  [self showSuccess];
  [self sendCompletedPaymentToServer:completedPayment]; // Payment was processed successfully; send to your server for verification and fulfillment
  [self dismissViewControllerAnimated:YES completion:nil];
}

来自Paypal 的didCompletePayment代码文档

您的代码可能会处理已完成的付款，如果它还没有处理的话所以在你的可选范围内payPalPaymentViewController:willCompletePayment:completeBlock:方法

通过使用该方法，您不需要调用willCompletePayment方法，也不会面临您所面临的问题。