Apple Pay強勢來襲，開發者應做的事情

"iOS8.1就已經有這個功能了，只是木有現在這么的火，現在的趨勢是要火的節奏，因此很多電商平臺B2B,P2P,C2C,X2X都有可能需要這個屌絲的付款功能了，在此簡單的研究一下。"

第一步先修改target為iOS 8.1，當然支持中國的需要9.2以上且需要iPhone6以上了，然后在項目Capabilities里將Apple Pay設置為on，這將自動導入需要的庫文件，然后添加一個權限文件并設置，最后修改或創建你的App ID。

正如上圖提示的一樣，你可能會注意到上面沒有有效的Merchant ID，我們需要創建一個，訪問蘋果iOS 開發者中心的位于Identifiers > Merchant ID的頁面。然后隨著流程指引，創建一個Merchant ID并注冊它。這個和其他證書差不多再此不做過多的闡述。下圖是已經創建好的參考圖片。

下載安裝然后刷新下剛剛項目里面的界面，選擇打勾即可，可以看到如下圖

下面簡單說下代碼：

.h文件里面

#import <UIKit/UIKit.h>

#import <PassKit/PassKit.h>

@interface ViewController : UIViewController <PKPaymentAuthorizationViewControllerDelegate>

@end

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController


- (void)viewDidLoad {
    [super viewDidLoad];
    UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
    btn.frame = CGRectMake(60, 100, 200, 50);
    btn.center = self.view.center;
    [btn setBackgroundImage:[UIImage imageNamed:@"ApplePayBTN_64pt__whiteLine_textLogo_"] forState:UIControlStateNormal];

    [btn addTarget:self action:@selector(ApplePay) forControlEvents:UIControlEventTouchUpInside];
    [self.view addSubview:btn];

}

#pragma mark ----支付狀態
- (void)paymentAuthorizationViewController:(PKPaymentAuthorizationViewController *)controller
didAuthorizePayment:(PKPayment *)payment
completion:(void (^)(PKPaymentAuthorizationStatus status))completion
{
    NSLog(@"Payment was authorized: %@", payment);

    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(@"支付失敗");


    }

}

#pragma mark ----開始支付
- (void)ApplePay{
    if([PKPaymentAuthorizationViewController canMakePayments]) {

    NSLog(@"支持支付");

    PKPaymentRequest *request = [[PKPaymentRequest alloc] init];

    PKPaymentSummaryItem *widget1 = [PKPaymentSummaryItem summaryItemWithLabel:@"雞蛋"
    amount:[NSDecimalNumber decimalNumberWithString:@"0.99"]];

    PKPaymentSummaryItem *widget2 = [PKPaymentSummaryItem summaryItemWithLabel:@"蘋果"
    amount:[NSDecimalNumber decimalNumberWithString:@"1.00"]];

    PKPaymentSummaryItem *widget3 = [PKPaymentSummaryItem summaryItemWithLabel:@"2個蘋果"
    amount:[NSDecimalNumber decimalNumberWithString:@"2.00"]];

    PKPaymentSummaryItem *widget4 = [PKPaymentSummaryItem summaryItemWithLabel:@"總金額" amount:[NSDecimalNumber decimalNumberWithString:@"3.99"] type:PKPaymentSummaryItemTypeFinal];

    request.paymentSummaryItems = @[widget1, widget2, widget3, widget4];

    request.countryCode = @"CN";
    request.currencyCode = @"CHW";
    //此屬性限制支付卡，可以支付。PKPaymentNetworkChinaUnionPay支持中國的卡 9.2增加的
    request.supportedNetworks = @[PKPaymentNetworkChinaUnionPay, PKPaymentNetworkMasterCard, PKPaymentNetworkVisa];
    request.merchantIdentifier = @"merchant.com.example.lbapplepaydemo";
    /*
    PKMerchantCapabilityCredit NS_ENUM_AVAILABLE_IOS(9_0)   = 1UL << 2,   // 支持信用卡
    PKMerchantCapabilityDebit  NS_ENUM_AVAILABLE_IOS(9_0)   = 1UL << 3    // 支持借記卡
    */
    request.merchantCapabilities = PKMerchantCapabilityCredit;
    //增加郵箱及地址信息
    request.requiredBillingAddressFields = PKAddressFieldEmail | PKAddressFieldPostalAddress;
    PKPaymentAuthorizationViewController *paymentPane = [[PKPaymentAuthorizationViewController alloc] initWithPaymentRequest:request];
    paymentPane.delegate = self;


    if (!paymentPane) {



        NSLog(@"出問題了");

    }

    [self presentViewController:paymentPane animated:YES completion:nil];


    } else {
        NSLog(@"該設備不支持支付");
    }

}

#pragma mark ----支付完成
- (void)paymentAuthorizationViewControllerDidFinish:(PKPaymentAuthorizationViewController *)controller
{

    [controller dismissViewControllerAnimated:TRUE completion:nil];
}


@end

在此過程中你可能會遇到如下問題：

1.countryCode 不知道怎么查，我這寫的是中國的 countryCode查詢網站

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