ios - 即使在调用 [PayPalMobile clearAllUserData] 后，Paypal ios SDK 也不会清除以前使用的信用卡

Question

我正在将 Paypal ios SDK 版本 2.1 集成到我的应用程序中，但遇到了问题。 即使我在付款完成后调用 [PayPalMobile clearAllUserData]，SDK 似乎仍将过去的支付卡保存在内存中。

@interface AirliftCartViewController : AirliftViewController <AVCaptureMetadataOutputObjectsDelegate, UITableViewDelegate, AirliftCartTotalsChangeDelegate, PayPalPaymentDelegate>
    @property (strong) AVCaptureSession * captureSession;
    @property (strong, nonatomic) UIView *cameraPreview;
    @property (nonatomic, strong, readwrite) PayPalConfiguration *payPalConfiguration;
    - (IBAction)initiateCreditCardCheckout:(id)sender;
@end
...
@implementation AirliftCartViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil timeout:(NSUInteger)timeoutInSeconds screenName:(NSString *)screenName
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil timeout:timeoutInSeconds screenName:@"AirliftCartView"];
    if (self) {
        // Custom initialization
        self.payPalConfiguration = [[PayPalConfiguration alloc] init];
        self.payPalConfiguration.rememberUser = NO;
    }

    return self;
}



- (void)payPalPaymentDidCancel:(PayPalPaymentViewController *)paymentViewController
{
    NSLog(@"payment cancelled!");
    // The payment was canceled; dismiss the PayPalPaymentViewController.
    [paymentViewController dismissViewControllerAnimated:YES completion:^{
        // clear all paypal user information
        [PayPalMobile clearAllUserData];
    }];
}

- (void)payPalPaymentViewController:(PayPalPaymentViewController *)paymentViewController didCompletePayment:(PayPalPayment *)completedPayment
{
    NSLog(@"Payment was successful");
    // Payment was processed successfully; send to server for verification and fulfillment.
    [self verifyCompletedPayment:completedPayment];

    // Dismiss the PayPalPaymentViewController.
    [paymentViewController dismissViewControllerAnimated:YES completion:^{

    // clear all paypal user information
    [PayPalMobile clearAllUserData];

    // emptycart
    [self.cartController emptyCart];

    // reset metadata
    [self.metaDataFound removeAllObjects];

}

- (IBAction)initiateCheckout:(id)sender {
    NSLog(@"checkout requested!");
    [PayPalMobile preconnectWithEnvironment:PayPalEnvironmentSandbox];

    // present paypal payment
    PayPalPaymentViewController * payPalVC = [[PayPalPaymentViewController alloc]
                                          initWithPayment:[self.cartController getPayPalPaymentFromCart]
                                          configuration:self.payPalConfiguration delegate:self];

    [self presentViewController:payPalVC animated:YES completion:^{
        [self.captureSession stopRunning];
        [self.cameraPreview removeFromSuperview];
    }];
}


@end

我像这样展示 PayPalPaymentViewController(所以我看不出有强烈的引用)

为我的应用程序保留任何卡信息是 Not Acceptable ，有人有什么想法吗？

编辑:按要求添加用户步骤:

• 用户选择要购买的产品，然后点击以 initiateCheckout 作为其 Action 的结账按钮。
• 这会调出 paypalpaymentviewcpntroller，它显示以前使用的卡作为唯一的支付选项(我第一次启动 Controller 时提供了登录 paypal 或使用卡的选择)

编辑 2:为 captureSession 和 cameraPreview 添加了属性声明并扩展了 init 定义

编辑 3:添加了屏幕截图

Answer 1

来自 PayPal 的 Dave。

几个问题:

(1) 您的captureSession 和cameraPreview 发生了什么？

(2) 您能否从用户的角度提供一系列重现您的问题的具体步骤？

(3)SDK在内存中保存卡数据的标志是什么？

(4) 您运行的是哪个版本的 SDK？我猜它是最新版本之一，2.1.5 或 2.1.6？

* 编辑(2014 年 8 月 1 日):最初描述的错误已在我们的 latest release 中修复. *