iOS开发 -- Apple Pay

    if(![PKPaymentAuthorizationViewController canMakePayments])
    {
        NSLog(@"不能支付");
        return;
    }

    if (![PKPaymentAuthorizationViewController canMakePaymentsUsingNetworks:@[PKPaymentNetworkAmex, PKPaymentNetworkMasterCard, PKPaymentNetworkVisa, PKPaymentNetworkChinaUnionPay]]) {
        NSLog(@"Wallet没有添加该支付网络的储蓄卡/信用卡");

        // 创建一个设置按钮
//        PKPaymentButton *button = [PKPaymentButton buttonWithType:PKPaymentButtonTypeSetUp style:PKPaymentButtonStyleWhiteOutline];
//        [button addTarget:self action:@selector(jump) forControlEvents:UIControlEventTouchUpInside];
//        button.center = self.view.center;
//        [self.view addSubview:button];


        return;
    }

// 1. 创建一个支付请求
    PKPaymentRequest *request = [[PKPaymentRequest alloc] init];


    // 2. 参数配置
    // 2.1 商店标识
    request.merchantIdentifier = @"merchant.520it.com";

    // 2.2 货币代码
    request.currencyCode = @"CNY";

    // 2.3 国家编码
    request.countryCode = @"CN";

    // 2.4 支持的支付网络（PKPaymentNetworkChinaUnionPay iOS9.2开始支持）
    request.supportedNetworks = @[PKPaymentNetworkAmex, PKPaymentNetworkMasterCard, PKPaymentNetworkVisa, PKPaymentNetworkChinaUnionPay];

    // 2.5 支付请求包含一个支付摘要项目的列表
    NSDecimalNumber *price1 = [NSDecimalNumber decimalNumberWithString:@"2"];
    PKPaymentSummaryItem *item1 = [PKPaymentSummaryItem summaryItemWithLabel:@"手榴弹" amount:price1];

    NSDecimalNumber *price2 = [NSDecimalNumber decimalNumberWithString:@"6"];
    PKPaymentSummaryItem *item2 = [PKPaymentSummaryItem summaryItemWithLabel:@"炸弹" amount:price2 type:PKPaymentSummaryItemTypePending];

    NSDecimalNumber *totalAmount = [NSDecimalNumber zero];
    totalAmount = [totalAmount decimalNumberByAdding:price1];
    totalAmount = [totalAmount decimalNumberByAdding:price2];
    PKPaymentSummaryItem *total = [PKPaymentSummaryItem summaryItemWithLabel:@"小码哥财务中心" amount:totalAmount type:PKPaymentSummaryItemTypePending];
    // 注意: 数组最后一个是总价格
    request.paymentSummaryItems = @[item1, item2, total];


    // 2.6 运输方式
    NSDecimalNumber *shippingPrice = [NSDecimalNumber decimalNumberWithString:@"18.0"];
    PKShippingMethod *method = [PKShippingMethod summaryItemWithLabel:@"顺丰快递" amount:shippingPrice];
    method.detail = @"24小时送到！";
    method.identifier = @"shunfeng";
    request.shippingMethods = @[method];
    request.shippingType = PKShippingTypeServicePickup;


    // 2.7 通过指定merchantCapabilities属性来指定你支持的支付处理标准，3DS支付方式是必须支持的，EMV方式是可选的，
    request.merchantCapabilities = PKMerchantCapability3DS | PKMerchantCapabilityEMV | PKMerchantCapabilityCredit | PKMerchantCapabilityDebit;
    
    // 2.8 需要的配送信息和账单信息
    request.requiredBillingAddressFields = PKAddressFieldAll;
    request.requiredShippingAddressFields = PKAddressFieldAll;

    // 2.9 存储额外信息
    // 使用applicationData属性来存储一些在你的应用中关于这次支付请求的唯一标识信息，比如一个购物车的标识符。在用户授权支付之后，这个属性的哈希值会出现在这次支付的token中。
    request.applicationData = [@"购物车ID: 123456" dataUsingEncoding:NSUTF8StringEncoding];

// 3. 开始支付
    PKPaymentAuthorizationViewController *paymentPane = [[PKPaymentAuthorizationViewController alloc] initWithPaymentRequest:request];
    if (paymentPane == nil) {
        NSLog(@"授权控制器创建失败");
        return;
    }
    paymentPane.delegate = self;
    [self presentViewController:paymentPane animated:YES completion:nil];

/**
 *  当授权成功之后会调用这个代理方法
 */
- (void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller
                       didAuthorizePayment:(PKPayment *)payment
                                completion:(void (^)(PKPaymentAuthorizationStatus status))completion;
{
//    PKPayment *temp = payment;
    NSLog(@"验证授权---%@", payment.token);
    NSLog(@"验证通过后, 需要开发者继续完成交易");
    // 它需要你连接服务器并上传支付令牌和 其他信息，以完成整个支付流程。
    BOOL isSuccess = YES;
    if (isSuccess) {
        completion(PKPaymentAuthorizationStatusSuccess);
    }else
    {
        completion(PKPaymentAuthorizationStatusFailure);
    }
    
}

/**
 *  当授权成功之后或者取消授权之后会调用这个代理方法
 */
- (void)paymentAuthorizationViewControllerDidFinish:(PKPaymentAuthorizationViewController *)controller
{
    NSLog(@"取消或者交易完成");
    [self dismissViewControllerAnimated:YES completion:nil];
}