ios Apple Pay 簡單使用

配置
1.在開發者帳號中先添加一個 Merchant IDs
2.如果已經有apple id，編輯apple id 在其中打開apple pay 選項，這時候就可選擇 剛纔添加的 Merchant IDs
3.重新配置provisioning Profiles安裝
4.在工程文件選擇capatilities 大家app pay選項，然後程序就會自動關聯之前設置的 Merchant IDs
5.在程序中導入頭文件#import<PassKit/PassKit.h>
同時要遵守一個協議<PKPaymentAuthorizationViewControllerDelegate>
6.代碼實現部分

 if([PKPaymentAuthorizationViewController canMakePayments])
    {
        NSLog(@"設備支持支付");
        
        PKPaymentRequest *request = [[PKPaymentRequest alloc] init];
        
        PKPaymentSummaryItem *item1 = [PKPaymentSummaryItem summaryItemWithLabel:@"Widget1" amount:[NSDecimalNumber decimalNumberWithString:@"0.01"]];
        
        PKPaymentSummaryItem *item2 = [PKPaymentSummaryItem summaryItemWithLabel:@"Widget2" amount:[NSDecimalNumber decimalNumberWithString:@"0.01"]];
        
        PKPaymentSummaryItem *total = [PKPaymentSummaryItem summaryItemWithLabel:@"Grand Total" amount:[NSDecimalNumber decimalNumberWithString:@"0.02"]];

        
        request.paymentSummaryItems = @[item1,item2,total];  // 最後一個必須是總價格
        request.countryCode = @"CN";  // 國家
        request.currencyCode = @"CNY";  // 人民幣
        
        request.supportedNetworks =@[PKPaymentNetworkChinaUnionPay,PKPaymentNetworkAmex,PKPaymentNetworkDiscover,PKPaymentNetworkInterac, PKPaymentNetworkMasterCard,PKPaymentNetworkPrivateLabel,PKPaymentNetworkVisa];
        
        request.merchantIdentifier = @"merchant.com.testapa";
        request.merchantCapabilities = PKMerchantCapability3DS|PKMerchantCapabilityEMV;
        
        PKPaymentAuthorizationViewController *payvw = [[PKPaymentAuthorizationViewController alloc]initWithPaymentRequest:request];
        
        if (payvw) {
            
            payvw.delegate = self;
            
            [self presentViewController:payvw animated:YES completion:nil];
            
        }else
        {
            
            UIAlertView *alertView=[[UIAlertView alloc] initWithTitle:nil message:@"\n未綁定卡\n" delegate:nil cancelButtonTitle:@"確定" otherButtonTitles:nil, nil];
            [alertView show];

        }
        
        
    
    }else
    {
        
        UIAlertView *alertView=[[UIAlertView alloc] initWithTitle:nil message:@"\n此設備不支持apple pay\n" delegate:nil cancelButtonTitle:@"確定" otherButtonTitles:nil, nil];
        [alertView show];
        NSLog(@"此設備不支持apple pay");
    }
7.實現協議以及回處理

- (void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller didAuthorizePayment:(PKPayment *)payment completion:(void (^)(PKPaymentAuthorizationStatus))completion
{
    
    
    NSLog(@"payment was authoried %@ ",payment);
    
    PKPaymentToken *payToken = payment.token;
    
    NSLog(@"token = %@ ",payToken);
    
    //支付憑據，發給服務端進行驗證支付是否真實有效
//    PKContact *billingContact = payment.billingContact;     //賬單信息
//    PKContact *shippingContact = payment.shippingContact;   //送貨信息
//    PKContact *shippingMethod = payment.shippingMethod;     //送貨方式
    //等待服務器返回結果後再進行系統block調用
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        //模擬服務器通信
        completion(PKPaymentAuthorizationStatusSuccess);
    });
    
    
}

- (void)paymentAuthorizationViewControllerDidFinish:(PKPaymentAuthorizationViewController *)controller
{
    
    NSLog(@"Finishing payment view controller");
    [controller dismissViewControllerAnimated:TRUE completion:nil];

}
8.付款成功後會返回一個token發送給服務器，服務器在收到 App 發送來的支付信息後，對數據進行解密操作，提取其中需要的信息，組織銀聯接口報文，調用銀聯的接口，完成扣款，會回調驗證結果
9.要保證你的手機已經綁定了銀行卡，如果沒有去設置-Wallet與Apple Pay 綁定
否則可能會出現This device cannot make payments錯誤
10. 更多詳細方法參考http://www.cocoachina.com/ios/20160226/15443.html