【iOS】Apple Pay 开发指南（一）

在发布近两年、历经各种周折之后，苹果公司的 Apple Pay 移动支付服务终于在2016年2月18日来到了中国大陆。
对中国用户来说，移动支付其实已经不是什么陌生事物，抢红包和支付宝早完成用户启蒙。但与这两者有区别的是，Apple Pay 只是苹果搭建的一个支付服务，它链接银行、店面及用户，但又不像支付宝那样把钱存在自己这，这是银联为何会疯狗一样帮推的原因之一。

作为开发者，这事还是值得高兴会的，高大上啊，不过代价是又要学习新知识了。。。
不过还好，看了看 Apple Pay 的文档，发现事情并没有那么可悲，这玩意还是比较容易搞的。
Swift 来一发好了。

开发步骤

1. 新建项目，打开 Apple Pay 的开关：

2. 这时你会发现 Merchant IDs 下面什么都没有，正常，点 + 号，按提示创建一个 Merchant ID：

当然你也可以前往 开发者中心 创建：

3. 创建好了就是这个样子的：

4. 打开 ViewController.swift，开心地敲代码吧~
   完整代码如下，注释比较齐全：

//
//  ViewController.swift
//  ApplePayDemo
//
//  Created by Leo on 16/3/4.
//  Copyright © 2016年 Leo. All rights reserved.
//

import UIKit
import PassKit

class ViewController: UIViewController, PKPaymentAuthorizationViewControllerDelegate {

    override func viewDidLoad() {
        super.viewDidLoad()

        let iconImage = UIImage.init(named: "Apple_Pay_Payment_Mark")

        let payBtn = UIButton.init(frame: CGRectMake((UIScreen.mainScreen().bounds.size.width - 100.0) * 0.5, 200, 100.0, 64.0))
        payBtn.setBackgroundImage(iconImage, forState: UIControlState.Normal)
        payBtn.addTarget(self, action: "payBtnClicked", forControlEvents: UIControlEvents.TouchUpInside)
        view.addSubview(payBtn)
    }

    /**
     点击了支付按钮
     */
    func payBtnClicked() {

        // 检查用户是否支持 Apple Pay
        if !PKPaymentAuthorizationViewController.canMakePayments() {
            print("设备不支持 Apple Pay")
            let alertView = UIAlertView.init(
                title: "设备不支持 Apple Pay",
                message: nil,
                delegate: nil,
                cancelButtonTitle: "确定")
            alertView.show()
            return
        }

        // 检查是否支持用户卡片
        var paymentNetworks: [String]!
        if #available(iOS 9.2, *) {
            paymentNetworks = [
                PKPaymentNetworkVisa,
                PKPaymentNetworkMasterCard,
                PKPaymentNetworkChinaUnionPay]  // 银联卡要求 iOS 9.2 +
        } else {
            paymentNetworks = [
                PKPaymentNetworkVisa,
                PKPaymentNetworkMasterCard]
        }
        if !PKPaymentAuthorizationViewController.canMakePaymentsUsingNetworks(paymentNetworks) {
            print("不支持的卡片类型。目前仅支持 Visa、MasterCard、中国银联卡。")
            let alertView = UIAlertView.init(
                title: "不支持的卡片类型",
                message: "目前仅支持 Visa、MasterCard、中国银联卡。",
                delegate: nil,
                cancelButtonTitle: "确定")
            alertView.show()
            return
        }

        // 创建付款请求
        let request                  = PKPaymentRequest()
        request.countryCode          = "CN"
        request.currencyCode         = "CNY"
        request.supportedNetworks    = paymentNetworks
        request.merchantIdentifier   = "merchant.me.leodev.ApplePayDemo"
        request.merchantCapabilities = PKMerchantCapability.Capability3DS

        // 添加付款项目
        let item1 = PKPaymentSummaryItem.init(label: "美酒", amount: NSDecimalNumber.init(double: 99.99))
        let item2 = PKPaymentSummaryItem.init(label: "咖啡", amount: NSDecimalNumber.init(double: 29.99))
        let item3 = PKPaymentSummaryItem.init(label: "小费", amount: NSDecimalNumber.init(double: 19.99))
        let item4 = PKPaymentSummaryItem.init(label: "超哥", amount: NSDecimalNumber.init(double: 149.97))
        request.paymentSummaryItems = [item1, item2, item3, item4]

        // 初始化 PKPaymentAuthorizationViewController 并显示
        let authViewController = PKPaymentAuthorizationViewController.init(paymentRequest: request)
        authViewController.delegate = self
        presentViewController(authViewController, animated: true, completion: nil)
    }

    // MARK: - PKPaymentAuthorizationViewControllerDelegate

    /**
    处理交易数据，并把状态返回给应用

    - parameter controller: 当前的 PKPaymentAuthorizationViewController
    - parameter payment:    payment
    - parameter completion: 返回
    */
    func paymentAuthorizationViewController(controller: PKPaymentAuthorizationViewController, didAuthorizePayment payment: PKPayment, completion: (PKPaymentAuthorizationStatus) -> Void) {

        let paymentToken = payment.token
        print("\(paymentToken)")

        // 超哥交易成功了
        completion(.Success)

        // 交易成功应该 push 个交易成功的界面什么的
        // ...
    }

    /**
     支付完成，隐藏 PKPaymentAuthorizationViewController

     - parameter controller: 当前的 PKPaymentAuthorizationViewController
     */
    func paymentAuthorizationViewControllerDidFinish(controller: PKPaymentAuthorizationViewController) {
        self.dismissViewControllerAnimated(true, completion: nil)
    }
}

5. 收工。

想想支付宝和微信支付， Pay 真 TM 简单啊。。。

源码：GitHub

示例

附一 currencyCode

点击展开/收起

    ADP,
    AED,
    AFA,
    AFN,
    ALK,
    ALL,
    AMD,
    ANG,
    AOA,
    AOK,
    AON,
    AOR,
    ARA,
    ARL,
    ARM,
    ARP,
    ARS,
    ATS,
    AUD,
    AWG,
    AZM,
    AZN,
    BAD,
    BAM,
    BAN,
    BBD,
    BDT,
    BEC,
    BEF,
    BEL,
    BGL,
    BGM,
    BGN,
    BGO,
    BHD,
    BIF,
    BMD,
    BND,
    BOB,
    BOL,
    BOP,
    BOV,
    BRB,
    BRC,
    BRE,
    BRL,
    BRN,
    BRR,
    BRZ,
    BSD,
    BTN,
    BUK,
    BWP,
    BYB,
    BYR,
    BZD,
    CAD,
    CDF,
    CHE,
    CHF,
    CHW,
    CLE,
    CLF,
    CLP,
    CNX,
    CNY,
    COP,
    COU,
    CRC,
    CSD,
    CSK,
    CUC,
    CUP,
    CVE,
    CYP,
    CZK,
    DDM,
    DEM,
    DJF,
    DKK,
    DOP,
    DZD,
    ECS,
    ECV,
    EEK,
    EGP,
    EQE,
    ERN,
    ESA,
    ESB,
    ESP,
    ETB,
    EUR,
    FIM,
    FJD,
    FKP,
    FRF,
    GBP,
    GEK,
    GEL,
    GHC,
    GHS,
    GIP,
    GMD,
    GNF,
    GNS,
    GQE,
    GRD,
    GTQ,
    GWE,
    GWP,
    GYD,
    HKD,
    HNL,
    HRD,
    HRK,
    HTG,
    HUF,
    IDR,
    IEP,
    ILP,
    ILR,
    ILS,
    INR,
    IQD,
    IRR,
    ISJ,
    ISK,
    ITL,
    JMD,
    JOD,
    JPY,
    KES,
    KGS,
    KHR,
    KMF,
    KPW,
    KRH,
    KRO,
    KRW,
    KWD,
    KYD,
    KZT,
    LAK,
    LBP,
    LKR,
    LRD,
    LSL,
    LSM,
    LTL,
    LTT,
    LUC,
    LUF,
    LUL,
    LVL,
    LVR,
    LYD,
    MAD,
    MAF,
    MCF,
    MDC,
    MDL,
    MGA,
    MGF,
    MKD,
    MKN,
    MLF,
    MMK,
    MNT,
    MOP,
    MRO,
    MTL,
    MTP,
    MUR,
    MVP,
    MVR,
    MWK,
    MXN,
    MXP,
    MXV,
    MYR,
    MZE,
    MZM,
    MZN,
    NAD,
    NGN,
    NIC,
    NIO,
    NLG,
    NOK,
    NPR,
    NZD,
    OMR,
    PAB,
    PEI,
    PEN,
    PES,
    PGK,
    PHP,
    PKR,
    PLN,
    PLZ,
    PTE,
    PYG,
    QAR,
    RHD,
    ROL,
    RON,
    RSD,
    RUB,
    RUR,
    RWF,
    SAR,
    SBD,
    SCR,
    SDD,
    SDG,
    SDP,
    SEK,
    SGD,
    SHP,
    SIT,
    SKK,
    SLL,
    SOS,
    SRD,
    SRG,
    SSP,
    STD,
    SUR,
    SVC,
    SYP,
    SZL,
    THB,
    TJR,
    TJS,
    TMM,
    TMT,
    TND,
    TOP,
    TPE,
    TRL,
    TRY,
    TTD,
    TWD,
    TZS,
    UAH,
    UAK,
    UGS,
    UGX,
    USD,
    USN,
    USS,
    UYI,
    UYP,
    UYU,
    UZS,
    VEB,
    VEF,
    VND,
    VNN,
    VUV,
    WST,
    XAF,
    XAG,
    XAU,
    XBA,
    XBB,
    XBC,
    XBD,
    XCD,
    XDR,
    XEU,
    XFO,
    XFU,
    XOF,
    XPD,
    XPF,
    XPT,
    XRE,
    XSU,
    XTS,
    XUA,
    XXX,
    YDD,
    YER,
    YUD,
    YUM,
    YUN,
    YUR,
    ZAL,
    ZAR,
    ZMK,
    ZMW,
    ZRN,
    ZRZ,
    ZWL,
    ZWR,
    ZWD
  

附二 countryCode

点击展开/收起

    AD,
    AE,
    AF,
    AG,
    AI,
    AL,
    AM,
    AO,
    AQ,
    AR,
    AS,
    AT,
    AU,
    AW,
    AX,
    AZ,
    BA,
    BB,
    BD,
    BE,
    BF,
    BG,
    BH,
    BI,
    BJ,
    BL,
    BM,
    BN,
    BO,
    BQ,
    BR,
    BS,
    BT,
    BV,
    BW,
    BY,
    BZ,
    CA,
    CC,
    CD,
    CF,
    CG,
    CH,
    CI,
    CK,
    CL,
    CM,
    CN,
    CO,
    CR,
    CU,
    CV,
    CW,
    CX,
    CY,
    CZ,
    DE,
    DJ,
    DK,
    DM,
    DO,
    DZ,
    EC,
    EE,
    EG,
    EH,
    ER,
    ES,
    ET,
    FI,
    FJ,
    FK,
    FM,
    FO,
    FR,
    GA,
    GB,
    GD,
    GE,
    GF,
    GG,
    GH,
    GI,
    GL,
    GM,
    GN,
    GP,
    GQ,
    GR,
    GS,
    GT,
    GU,
    GW,
    GY,
    HK,
    HM,
    HN,
    HR,
    HT,
    HU,
    ID,
    IE,
    IL,
    IM,
    IN,
    IO,
    IQ,
    IR,
    IS,
    IT,
    JE,
    JM,
    JO,
    JP,
    KE,
    KG,
    KH,
    KI,
    KM,
    KN,
    KP,
    KR,
    KW,
    KY,
    KZ,
    LA,
    LB,
    LC,
    LI,
    LK,
    LR,
    LS,
    LT,
    LU,
    LV,
    LY,
    MA,
    MC,
    MD,
    ME,
    MF,
    MG,
    MH,
    MK,
    ML,
    MM,
    MN,
    MO,
    MP,
    MQ,
    MR,
    MS,
    MT,
    MU,
    MV,
    MW,
    MX,
    MY,
    MZ,
    NA,
    NC,
    NE,
    NF,
    NG,
    NI,
    NL,
    NO,
    NP,
    NR,
    NU,
    NZ,
    OM,
    PA,
    PE,
    PF,
    PG,
    PH,
    PK,
    PL,
    PM,
    PN,
    PR,
    PS,
    PT,
    PW,
    PY,
    QA,
    RE,
    RO,
    RS,
    RU,
    RW,
    SA,
    SB,
    SC,
    SD,
    SE,
    SG,
    SH,
    SI,
    SJ,
    SK,
    SL,
    SM,
    SN,
    SO,
    SR,
    SS,
    ST,
    SV,
    SX,
    SY,
    SZ,
    TC,
    TD,
    TF,
    TG,
    TH,
    TJ,
    TK,
    TL,
    TM,
    TN,
    TO,
    TR,
    TT,
    TV,
    TW,
    TZ,
    UA,
    UG,
    UM,
    US,
    UY,
    UZ,
    VA,
    VC,
    VE,
    VG,
    VI,
    VN,
    VU,
    WF,
    WS,
    YE,
    YT,
    ZA,
    ZM,
    ZW
  

联系与捐赠

• Mail: echo bGVvZGF4aWFAZ21haWwuY29tCg== | base64 -D
• GitHub: iTofu