ViewController

#import "ViewController.h"

#import <PassKit/PassKit.h>

#import "UIView+ShowAlert.h"

#define kDevice_SystemVersion [[UIDevice currentDevice].systemVersion floatValue]

//用户是否可进行某种卡的支付，是否支持Amex、MasterCard、Visa

#define SupportApplePayNetworks @[PKPaymentNetworkAmex, PKPaymentNetworkMasterCard,PKPaymentNetworkVisa]

//用户是否可进行某种卡的支付，是否支持Amex、MasterCard、Visa与银联四种卡

#define SupportApplePayNetworksAndChina @[PKPaymentNetworkAmex, PKPaymentNetworkMasterCard,PKPaymentNetworkVisa,PKPaymentNetworkChinaUnionPay]

@interface ViewController () <PKPaymentAuthorizationViewControllerDelegate>

@end

@implementation ViewController

- (void)viewDidLoad {

    [super viewDidLoad];

    // PKPaymentButton 按钮 8.3 之后

    if (kDevice_SystemVersion >= 8.3) {

        PKPaymentButton *payButton = [[PKPaymentButton alloc] initWithPaymentButtonType:PKPaymentButtonTypeBuy paymentButtonStyle:PKPaymentButtonStyleBlack];

        payButton.center = self.view.center;

        [self.view addSubview:payButton];

        [payButton addTarget:self action:@selector(pay:) forControlEvents:UIControlEventTouchUpInside];

    }

}

- (IBAction)pay:(id)sender {

    // 苹果支付 8.3 版本之后可以用，如果在中国是 9.2 之后可以

    if (![PKPaymentAuthorizationViewController class] || kDevice_SystemVersion < 8.3) {

        [self.view myShowAlertView:@"OS does not support Apple Pay, please upgrade to version 8.3 or above. Only iPhone6 or above devices are supported."];

        return;

    }

    //检查当前设备是否可以支付

    if(![PKPaymentAuthorizationViewController canMakePayments]) {

        [self.view myShowAlertView:@"The device does not support Apple Pay, please upgrade to version 8.3 or above. Only iPhone6 or above devices are supported."];

        return;

    }

    //检查用户是否可进行某种卡的支付，银联卡9.2之后才支持。 根据自己项目的需要进行检测

    NSArray *supportedNetworks = kDevice_SystemVersion >= 9.2 ? SupportApplePayNetworksAndChina:SupportApplePayNetworks;

    if (![PKPaymentAuthorizationViewController canMakePaymentsUsingNetworks:supportedNetworks]) {

        [self.view myShowAlertView:@"No payment card binding."];

        return;

    }

    PKPaymentRequest *paymentRequest = [[PKPaymentRequest alloc] init];

    PKPaymentSummaryItem *total = [PKPaymentSummaryItem summaryItemWithLabel:@"ROMWE" amount:[NSDecimalNumber decimalNumberWithString:@"33.99"]];

    paymentRequest.paymentSummaryItems = @[total];

    // currencyCode 设置币种

//    paymentRequest.currencyCode = [[NSLocale currentLocale] objectForKey:NSLocaleCountryCode];//用户当前地区的币种

    //    // 人民币

        paymentRequest.currencyCode = @"CNY";

    // countryCode 设置国家

    paymentRequest.countryCode = @"CN";  // 中国    注意：currencyCode 和 countryCode 应该是对应的额

    // 在 developer.apple.com member center 里设置的 merchantID

    paymentRequest.merchantIdentifier = @"merchant.com.romwe.dotfashion";

    // PKMerchantCapabilityCredit 在真机上无法回调 `didAuthorizePayment` 方法

    paymentRequest.merchantCapabilities = PKMerchantCapability3DS;

    // 支持哪种结算网关

    paymentRequest.supportedNetworks = supportedNetworks;

    PKPaymentAuthorizationViewController *paymentVC = [[PKPaymentAuthorizationViewController alloc] initWithPaymentRequest:paymentRequest];

    if (paymentVC) {

        paymentVC.delegate = self;

        [self presentViewController:paymentVC animated:YES completion:NULL];

    } else {

        [self.view myShowAlertView:@"You can only use debit or credit card provided by:American express, Visa, Mastercard, Union pay"];

    }

}

#pragma mark - Payment delegate

//支付卡选择回调

- (void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller didSelectPaymentMethod:(PKPaymentMethod *)paymentMethod completion:(void (^)(NSArray<PKPaymentSummaryItem *> * _Nonnull))completion {

    NSLog(@"didSelectPaymentMethod");

    completion(@[]);

}

//送货地址回调

-(void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller didSelectShippingContact:(PKContact *)contact completion:(void (^)(PKPaymentAuthorizationStatus, NSArray<PKShippingMethod *> * _Nonnull, NSArray<PKPaymentSummaryItem *> * _Nonnull))completion {

    NSLog(@"didSelectShippingContact");

}

//送货方式回调

- (void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller didSelectShippingMethod:(PKShippingMethod *)shippingMethod completion:(void (^)(PKPaymentAuthorizationStatus, NSArray<PKPaymentSummaryItem *> * _Nonnull))completion {

    NSLog(@"didSelectShippingMethod");

}

//付款成功苹果服务器返回信息回调，做服务器验证

- (void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller didAuthorizePayment:(PKPayment *)payment completion:(void (^)(PKPaymentAuthorizationStatus))completion {

    NSLog(@"---------------did authorize payment token: %@, %@", payment.token, payment.token.transactionIdentifier);

    // 发送网络 请求  做服务器验证

    BOOL seccess; // 服务器返回成功

    if (/* 请求成功 */seccess) {

        completion(PKPaymentAuthorizationStatusSuccess);

    } else {

        completion(PKPaymentAuthorizationStatusFailure);

    }

}

//支付完成回调

- (void)paymentAuthorizationViewControllerDidFinish:(PKPaymentAuthorizationViewController *)controller {

    [controller dismissViewControllerAnimated:controller completion:NULL];

    // 支付完成之后可以在这里做一些逻辑，比如跳转到订单详情

    UIViewController *vc = [[UIViewController alloc] init];

    vc.view.backgroundColor = [UIColor redColor];

    [self.navigationController pushViewController:vc animated:YES];

}

@end