ApplePay支付使用

1.到开发者中心生成AppID与merchantID，将两者进行绑定；

2.到工程中打开applePay的功能，如下图

之后项目会多一个Applepay的配置文件ApplePayYasin.entitlements

需要引入的库：

Xcode7.0以上不需要再手动添加需要引用的库了，只需要导入头文件就可以了

#import <PassKit/PassKit.h>                                 //用户绑定的银行卡信息
#import <PassKit/PKPaymentAuthorizationViewController.h>    //Apple pay的展示控件
#import <AddressBook/AddressBook.h>                         //用户联系信息相关

支持的四种卡：visa/万事达、美国运通、银联

if (![PKPaymentAuthorizationViewController class]) {
        //PKPaymentAuthorizationViewController需iOS8.0以上支持
        NSLog(@"操作系统不支持ApplePay，请升级至9.0以上版本，且iPhone6以上设备才支持");
        return;
    }
    //检查当前设备是否可以支付
    if (![PKPaymentAuthorizationViewController canMakePayments]) {
        //支付需iOS9.0以上支持
        NSLog(@"设备不支持ApplePay，请升级至9.0以上版本，且iPhone6以上设备才支持");
        return;
    }
    //检查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，根据自己项目的需要进行检测
    NSArray *supportedNetworks = @[PKPaymentNetworkAmex, PKPaymentNetworkMasterCard,PKPaymentNetworkVisa,PKPaymentNetworkChinaUnionPay];
    if (![PKPaymentAuthorizationViewController canMakePaymentsUsingNetworks:supportedNetworks]) {
        NSLog(@"没有绑定支付卡");
        return;
    }

创建支付请求：

初始化PKPaymentRequest：

//设置币种、国家码及merchant标识符等基本信息
  PKPaymentRequest *payRequest = [[PKPaymentRequest alloc]init];
  payRequest.countryCode = @"CN";     //国家代码
  payRequest.currencyCode = @"CNY";       //RMB的币种代码
  payRequest.merchantIdentifier = @"merchant.ApplePayDemoYasin";  //申请的merchantID
  payRequest.supportedNetworks = supportedNetworks;   //用户可进行支付的银行卡
  payRequest.merchantCapabilities = PKMerchantCapability3DS|PKMerchantCapabilityEMV;      //设置支持的交易处理协议，3DS必须支持，EMV为可选，目前国内的话还是使用两者吧

•  设置发票配送信息和货物配送地址信息,用户设置后可以通过代理回调获取信息的更新

//    payRequest.requiredBillingAddressFields = PKAddressFieldEmail;   
//如果需要邮寄账单可以选择进行设置，默认PKAddressFieldNone(不邮寄账单)
//楼主感觉账单邮寄地址可以事先让用户选择是否需要，否则会增加客户的输入麻烦度，体验不好，
  payRequest.requiredShippingAddressFields = PKAddressFieldPostalAddress|PKAddressFieldPhone|PKAddressFieldName;
  //送货地址信息，这里设置需要地址和联系方式和姓名，如果需要不进行设置，默认PKAddressFieldNone(没有送货地址)

• 设置货物的配送方式，不需要不配置

//设置两种配送方式（可以进行选择）
  PKShippingMethod *freeShipping = [PKShippingMethod summaryItemWithLabel:@"包邮" amount:[NSDecimalNumber zero]];
  freeShipping.identifier = @"freeshipping";
  freeShipping.detail = @"6-8 天 送达";

  PKShippingMethod *expressShipping = [PKShippingMethod summaryItemWithLabel:@"极速送达" amount:[NSDecimalNumber decimalNumberWithString:@"10.00"]];
  expressShipping.identifier = @"expressshipping";
  expressShipping.detail = @"2-3 小时 送达";

  payRequest.shippingMethods = @[freeShipping, expressShipping];

• 账单信息的设置 

每条账单的设置
账单列表使用PKPaymentSummaryItem添加描述和价格，价格使用NSDecimalNumber。
PKPaymentSummaryItem初始化：
label为商品名字或者是描述，amount为商品价格，折扣为负数，type为该条账单为最终价格还是估算价格(比如出租车价格预估)

NSDecimalNumber *subtotalAmount = [NSDecimalNumber decimalNumberWithMantissa:1275 exponent:-2 isNegative:NO];   //12.75
PKPaymentSummaryItem *subtotal = [PKPaymentSummaryItem summaryItemWithLabel:@"商品价格" amount:subtotalAmount];

NSDecimalNumber *discountAmount = [NSDecimalNumber decimalNumberWithString:@"-12.74"];      //-12.74
PKPaymentSummaryItem *discount = [PKPaymentSummaryItem summaryItemWithLabel:@"优惠折扣" amount:discountAmount];

NSDecimalNumber *methodsAmount = [NSDecimalNumber zero];
PKPaymentSummaryItem *methods = [PKPaymentSummaryItem summaryItemWithLabel:@"包邮" amount:methodsAmount];

NSDecimalNumber *totalAmount = [NSDecimalNumber zero];
totalAmount = [totalAmount decimalNumberByAdding:subtotalAmount];
totalAmount = [totalAmount decimalNumberByAdding:discountAmount];
totalAmount = [totalAmount decimalNumberByAdding:methodsAmount];
PKPaymentSummaryItem *total = [PKPaymentSummaryItem summaryItemWithLabel:@"Yasin" amount:totalAmount];  //最后这个是支付给谁。哈哈，快支付给我

summaryItems = [NSMutableArray arrayWithArray:@[subtotal, discount, methods, total]];
//summaryItems为账单列表，类型是 NSMutableArray，这里设置成成员变量，在后续的代理回调中可以进行支付金额的调整。
payRequest.paymentSummaryItems = summaryItems;

显示购物信息并进行支付

//ApplePay控件
    PKPaymentAuthorizationViewController *view = [[PKPaymentAuthorizationViewController alloc]initWithPaymentRequest:payRequest];
    view.delegate = self;
    [self presentViewController:view animated:YES completion:nil];

 PKPaymentAuthorizationViewControllerDelegate代理

1. PKPayment 支付成功信息

PKPaymentToken *payToken = payment.token;
//支付凭据，发给服务端进行验证支付是否真实有效
PKContact *billingContact = payment.billingContact;     //账单信息
PKContact *shippingContact = payment.shippingContact;   //送货信息
PKContact *shippingMethod = payment.shippingMethod;     //送货方式

2.PKContact 联系人信息

NSPersonNameComponents *name = contact.name;                //联系人姓名
CNPostalAddress *postalAddress = contact.postalAddress;     //联系人地址
NSString *emailAddress = contact.emailAddress;              //联系人邮箱
CNPhoneNumber *phoneNumber = contact.phoneNumber;           //联系人手机
NSString *supplementarySubLocality = contact.supplementarySubLocality;  //补充信息，地址详细描述，其他备注等等,iOS9.2及以上才有

 代理说明

送货地址回调:

-(void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller
                didSelectShippingContact:(PKContact *)contact
                              completion:(void (^)(PKPaymentAuthorizationStatus, NSArray<PKShippingMethod *> * _Nonnull, NSArray<PKPaymentSummaryItem *> * _Nonnull))completion{
  //contact送货地址信息，PKContact类型
  //送货信息选择回调，如果需要根据送货地址调整送货方式，比如普通地区包邮+极速配送，偏远地区只有付费普通配送，进行支付金额重新计算，可以实现该代理，返回给系统：shippingMethods配送方式，summaryItems账单列表，
如果不支持该送货信息返回想要的PKPaymentAuthorizationStatus
  completion(PKPaymentAuthorizationStatusSuccess, shippingMethods, summaryItems);
}

 送货方式回调:

-(void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller
                 didSelectShippingMethod:(PKShippingMethod *)shippingMethod
                              completion:(void (^)(PKPaymentAuthorizationStatus, NSArray<PKPaymentSummaryItem *> * _Nonnull))completion{
  //配送方式回调，如果需要根据不同的送货方式进行支付金额的调整，比如包邮和付费加速配送，可以实现该代理
  PKShippingMethod *oldShippingMethod = [summaryItems objectAtIndex:2];
  PKPaymentSummaryItem *total = [summaryItems lastObject];
  total.amount = [total.amount decimalNumberBySubtracting:oldShippingMethod.amount];
  total.amount = [total.amount decimalNumberByAdding:shippingMethod.amount];

  [summaryItems replaceObjectAtIndex:2 withObject:shippingMethod];
  [summaryItems replaceObjectAtIndex:3 withObject:total];

  completion(PKPaymentAuthorizationStatusSuccess, summaryItems);
}

 支付卡选择回调:

-(void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller didSelectPaymentMethod:(PKPaymentMethod *)paymentMethod completion:(void (^)
(NSArray<PKPaymentSummaryItem *> * _Nonnull))completion{
  //支付银行卡回调，如果需要根据不同的银行调整付费金额，可以实现该代理
  completion(summaryItems);
}

 付款请求授权成功后苹果服务器返回信息回调，做服务器验证支付是否真实:

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

 //这是新版
	//拿到token，
    PKPaymentToken *token = payment.token;
    //拿到订单地址
    NSString *city = payment.billingContact.postalAddress.city;
    NSLog(@"city:%@",city);
    ///在这里将token和地址发送到自己的服务器，有自己的服务器与银行和商家进行接口调用和支付将结果返回到这里
    //我们根据结果生成对应的状态对象，根据状态对象显示不同的支付结构
    //状态对象
    PKPaymentAuthorizationStatus status = PKPaymentAuthorizationStatusFailure;
    completion(status);
 //支付凭据，发给服务端进行验证支付是否真实有效
   BOOL asyncSuccessful = FALSE;

    if(asyncSuccessful) {

        completion(PKPaymentAuthorizationStatusSuccess);

 

        // do something to let the user know the status

 

        NSLog(@"支付成功");

 

    } else {

        completion(PKPaymentAuthorizationStatusFailure);

 

        // do something to let the user know the status

        NSLog(@"支付失败");

 

    }

}

 支付完成回调:

-(void)paymentAuthorizationViewControllerDidFinish:(PKPaymentAuthorizationViewController *)controller{
  [controller dismissViewControllerAnimated:YES completion:nil];
}