首先需要在开发者账号里面做操作，然后在代码中生成：

w01.png

在ViewController中添加代码：

#import "ViewController.h"
#import <PassKit/PassKit.h>
@interface ViewController ()<PKPaymentAuthorizationViewControllerDelegate>

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    
    //----------apple pay----------------------------
    //1.判断当前设备是否支持苹果支付
    if (![PKPaymentAuthorizationViewController canMakePayments]) {
        NSLog(@"当前设备不支持ApplePay");
    }else if (![PKPaymentAuthorizationViewController canMakePaymentsUsingNetworks:@[PKPaymentNetworkVisa,PKPaymentNetworkChinaUnionPay]])
    {
        //创建一个跳转按钮，当用户点击按钮时，跳转到添加银行卡的界面
        PKPaymentButton *button = [PKPaymentButton buttonWithType:PKPaymentButtonTypeSetUp style:PKPaymentButtonStyleWhiteOutline];
        button.frame = CGRectMake(150, 400, 100, 30);
        [button addTarget:self action:@selector(jump) forControlEvents:(UIControlEventTouchUpInside)];
        [self.view addSubview:button];
    }else{
        //创建一个购买按钮，当用户点击按钮时，购买一个商品
        PKPaymentButton *button = [PKPaymentButton buttonWithType:PKPaymentButtonTypeBuy style:PKPaymentButtonStyleBlack];
        button.frame = CGRectMake(150, 400, 100, 30);
        [button addTarget:self action:@selector(buy) forControlEvents:(UIControlEventTouchUpInside)];
        [self.view addSubview:button];
    }
    

}


- (void)jump
{
    PKPassLibrary *pl = [[PKPassLibrary alloc] init];
    [pl openPaymentSetup];//系统自带的页面
}

- (void)buy
{
    NSLog(@"购买商品，开始支付");
    
    //1.创建一个支付请求
    PKPaymentRequest *request = [[PKPaymentRequest alloc] init];
    //1.1 配置支付请求
    //1.1.1配置商家ID
    request.merchantIdentifier = @"merchant.wgj.applePay.com";//appleDeveloper里面生成的
    //1.1.2配置货币代码以及国家代码
    request.countryCode = @"CN";
    request.currencyCode = @"CNY";
    //1.1.3配置请求支持的支付网络
    request.supportedNetworks = @[PKPaymentNetworkVisa,PKPaymentNetworkChinaUnionPay];
    //1.1.4配置商户的处理方式
    request.merchantCapabilities = PKMerchantCapability3DS;
    //1.1.5配置购买的商品列表
    NSDecimalNumber *price1 = [NSDecimalNumber decimalNumberWithString:@"10.0"];
    PKPaymentSummaryItem *item1 = [PKPaymentSummaryItem summaryItemWithLabel:@"苹果6s" amount:price1];
    
    NSDecimalNumber *price11 = [NSDecimalNumber decimalNumberWithString:@"10.0"];
    PKPaymentSummaryItem *item11 = [PKPaymentSummaryItem summaryItemWithLabel:@"wgj公司财务" amount:price11];
    
    //注意：支付列表最后一个，代表汇总
    request.paymentSummaryItems = @[item1,item11];
    
    //1.2 配置请求的附加项
    //1.2.1 是否显示发票收货地址，显示哪些选项
    request.requiredBillingAddressFields = PKAddressFieldAll;
    //1.2.2 是否显示快递地址，显示哪些选项
    request.requiredShippingAddressFields = PKAddressFieldAll;
    
    //1.2.3 配置快递方式NSArray<PKShippingMethod *>
    NSDecimalNumber *price2 = [NSDecimalNumber decimalNumberWithString:@"18.0"];
    PKShippingMethod *method = [PKShippingMethod summaryItemWithLabel:@"顺丰快递" amount:price2];
    method.detail = @"24小时内送达";
    method.identifier = @"shunfeng";
    
    NSDecimalNumber *price3 = [NSDecimalNumber decimalNumberWithString:@"1.0"];
    PKShippingMethod *method2 = [PKShippingMethod summaryItemWithLabel:@"韵达快递" amount:price3];
    method2.detail = @"48小时内送达";
    method2.identifier = @"yunda";
    request.shippingMethods = @[method,method2];
    
    //1.2.3.2 配置快递的类型
    request.shippingType = PKShippingTypeStorePickup;
    
    //1.3 添加一些附加数据
    request.applicationData = [@"buyId = 123" dataUsingEncoding:NSUTF8StringEncoding];
    
    
    
    
    //2.验证用户的支付授权
    PKPaymentAuthorizationViewController *acv = [[PKPaymentAuthorizationViewController alloc] initWithPaymentRequest:request];
    acv.delegate = self;
    
    [self presentViewController:acv animated:YES completion:nil];
    
}

#pragma mark - PKPaymentAuthorizationViewControllerDelegate
// 如果用户授权成功，就会调用这个方法
// 参数一：授权控制器
// 参数二：支付对象
// 参数三：系统给定的一个回调代码块，我们需要执行这个代码块，来告诉系统当前的支付状态是否成功

- (void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller didAuthorizePayment:(PKPayment *)payment completion:(void (^)(PKPaymentAuthorizationStatus))completion
{
    
    // 一般在此处，拿到支付信息，发送给服务器处理，处理完毕之后，服务器会返回一个状态，告诉客户端，是否支付成功，然后由客户端进行处理
    BOOL isSuccess = YES;
    
#warning 服务器需要处理的东西，其中有苹果推荐的一个第三方服务器
    
    if (isSuccess) {
        completion(PKPaymentAuthorizationStatusSuccess);
    }else{
        completion(PKPaymentAuthorizationStatusFailure);
    }
}
// 当前用户授权成功，或者取消授权时调用
- (void)paymentAuthorizationViewControllerDidFinish:(PKPaymentAuthorizationViewController *)controller
{
    NSLog(@"授权结束");
    [self dismissViewControllerAnimated:YES completion:nil];
}


- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end