本机iOS Apple Pay联系信息

Question

我正在研究一个库，该库创建一个提供本机套用支付功能的React-Native模块。实际呈现Apple Pay View控制器的控制器：

dispatch_async(dispatch_get_main_queue(), ^{
        UIViewController *rootViewController = RCTPresentedViewController();
        [rootViewController presentViewController:self.viewController animated:YES completion:nil];
        callback(@[[NSNull null]]);
    });

还将自己附加到该委托人PKPaymentAuthorizationViewControllerDelegate上，并且像文档中所解释的那样，它提供了didSelectShippingContact启动时的功能：

// Shipping Contact
- (void) paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller
                   didSelectShippingContact:(PKContact *)contact
                                 completion:(nonnull void (^)(PKPaymentAuthorizationStatus, NSArray<PKShippingMethod *> * _Nonnull, NSArray<PKPaymentSummaryItem *> * _Nonnull))completion
{
    self.shippingContactCompletion = completion;
    NSLog(@"testis%@", contact);
    CNPostalAddress *postalAddress = contact.postalAddress;
    // street, subAdministrativeArea, and subLocality are supressed for privacy
    [self.bridge.eventDispatcher sendDeviceEventWithName:@"NativePayments:onshippingaddresschange"
                                                    body:@{
                                                           @"recipient": [NSNull null],
                                                           @"organization": [NSNull null],
                                                           @"addressLine": [NSNull null],
                                                           @"city": postalAddress.city,
                                                           @"region": postalAddress.state,
                                                           @"country": [postalAddress.ISOCountryCode uppercaseString],
                                                           @"postalCode": postalAddress.postalCode,
                                                           @"phone": [NSNull null],
                                                           @"languageCode": [NSNull null],
                                                           @"sortingCode": [NSNull null],
                                                           @"dependentLocality": [NSNull null]
                                                           }];
}

苹果支付视图还可以处理运输信息之外的联系信息，但是我不确定如何将委托附加到该信息上，这样我就可以获取已存储/更新/选择/删除的联系信息。我一直在寻找一种类似于didSelectShippingContact => completion的{​​{1}}的方式，但是我很快就迷路了。