Apple Pay接入详细教程
来源：Yasin的简书
链接：http://www.jianshu.com/p/738aee78ba52#
Apple Pay运行环境：iPhone6以上设备，操作系统最低iOS9.0以上，部分信息设置需要iOS9.2以上。目前还不支持企业证书添加。
环境搭建好后可以在模拟器上面运行，xcode7.2.1+iPhone6SP9.2系统下，系统会绑定几种虚拟的银行卡，和几个联系人，方便调试，支付也不会发生真实的付款，真的很方便。
[TCO]
准备工作
在接入Apple Pay之前，首先要申请MerchantID及对应证书。
请移步我写的申请MerchantID及对应证书详细图文教程
工程设置
bundleID设置
Capability中启用Apple Pay权限，并选择merchantID。
之后项目会多一个Applepay的配置文件ApplePayYasin.entitlements
需要引用的库
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
设备Applepay权限检测
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PKPaymentRequest
- 初始化PKPaymentRequest
这里需要注意RMB的币种代码是CNY
//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代理获取信息的更新
// 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，如果需要进行设置，默认PKAddressFieldNone(没有送货地址)
送货信息页面展示
- 设置货物的配送方式，不需要不配置
//设置两种配送方式
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)
+ (instancetype)summaryItemWithLabel:(NSString *)label amount:(NSDecimalNumber *)amount;
+ (instancetype)summaryItemWithLabel:(NSString *)label amount:(NSDecimalNumber *)amount type:(PKPaymentSummaryItemType)type NS_AVAILABLE(NA, 9_0);
- NSDecimalNumber初始化：
NSDecimalNumber可以使用数字初始化，也可以使用字符串。
使用方法请移步我写的NSDecimalNumber--十进制数
- 添加账单列表：
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
- 这里还有两个类要介绍
- 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
- 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];
-(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);
} 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);
}
送货地址回调，已弃用
-(void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller didSelectShippingAddress:(ABRecordRef)address completion:(void (^)(PKPaymentAuthorizationStatus, NSArray<PKShippingMethod *> * _Nonnull, NSArray<PKPaymentSummaryItem *> * _Nonnull))completion{
//送货地址回调，已弃用
}
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 status))completion {
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
//等待服务器返回结果后再进行系统block调用
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
//模拟服务器通信
completion(PKPaymentAuthorizationStatusSuccess);
});
}
支付完成回调
-(void)paymentAuthorizationViewControllerDidFinish:(PKPaymentAuthorizationViewController *)controller{
[controller dismissViewControllerAnimated:YES completion:nil];
}