COCOS2dX - 集成PayPa

COCOS2dX - 集成 PayPal

在 paypal 的世界里，他有多种支付方式：

直接支付 (single payment) ：类似国内支付产品，直接对一件或多件商品使用 paypal 余额支付

预支付 (future payment) ：创建一个预支付订单，可能以后进行支付

信用卡支付 (credit card) ： paypal SDK 提供了一套 card.io 的库，可以扫描信用卡，并且使用信用卡直接支付

大多数情况下我们只需要使用直接支付就好，这里用直接支付。

1. 到 PayPal 网站注册账号： https://developer.paypal.com

创建 application 并获取 CLIENT_ID_FOR_PRODUCTION 和 CLIENT_ID_FOR_SANDBOX 。

2. 添加 paypal SDK 到你的项目

如果你用 cocoapods 来管理你的三方库，那么你只需要以下两行代码：

platform :ios, '6.0'

pod 'PayPal-iOS-SDK'

 

如果你不使用 cocoapods ，用以下方法

(1) 添加 paypalmobile 目录 Xcode 项目中 ( 包含 .h 和 libPayPalMobile.a)

(2) 添加 -lc++ 和 -ObjC 到 Other Linker Flags ；

Enable Modules (C and Objective-C) 设为 enable

Link Frameworks Automatically 设为 enable

(3) 导入必须的框架：

Accelerate.framework

AudioToolbox.framework

AVFoundation.framework

CoreLocation.framework

CoreMedia.framework

MessageUI.framework

MobileCoreServices.framework

SystemConfiguration.framework

SafariServices.framework

不管你有没有使用 cocoapods ，都需要给 URL Scheme 里面加以下几行 :

com.paypal.ppclient.touch.v1

com.paypal.ppclient.touch.v2

org-appextension-feature-password-management

3 初始化 SDK ，需要你提供 client ID ，这个过程在 AppDelegate.m 里面实现。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{ ...

[PayPalMobile initializeWithClientIdsForEnvironments:@{PayPalEnvironmentProduction : @"YOUR_CLIENT_ID_FOR_PRODUCTION",

PayPalEnvironmentSandbox : @"YOUR_CLIENT_ID_FOR_SANDBOX"}];

...

}

4. 结算页面添加代理

//PayPalHelper.h

@interface PayPalHelper : UIViewController<PayPalPaymentDelegate>

    + (PayPalHelper*) getInstance;

    @property(nonatomic, strong, readwrite) NSString *environment;

    - (void)viewDidAppera;

    - (void)viewWillAppear:(BOOL)animated;

    - (void)setPayPalEnvironment:(NSString *)environment;

    - (void)pay:(NSString *)amount;

@end

5. 创建自己创建的类的对象

//PayPalHelper.m

// Set the environment:

// - For live charges, use PayPalEnvironmentProduction (default).

// - To use the PayPal sandbox, use PayPalEnvironmentSandbox.

// - For testing, use PayPalEnvironmentNoNetwork.

#define kPayPalEnvironment PayPalEnvironmentNoNetwork

@interface PayPalHelper()

@property (nonatomic, strong, readwrite) PayPalConfiguration *payPalConfig;

@end

@implementation PayPalHelper

static PayPalHelper*  g_PayPalHelper;

@implementation PayPalHelper

#pragma mark -

#pragma mark getInstance

+ (PayPalHelper*) getInstance {

    if  (g_PayPalHelper == nil){

        g_PayPalHelper = [[PayPalHelper alloc] init];

    }

    return g_PayPalHelper;

}

6. 初始化 PayPalConfiguration

//PayPalHelper.m

- (void)viewDidLoad{

  [super viewDidLoad];

  _payPalConfig = [[PayPalConfiguration alloc] init];

  _payPalConfig.acceptCreditCards = NO;

  _payPalConfig.merchantName = @"Awesome Shirts";

  _payPalConfig.languageOrLocale = [NSLocale preferredLanguages][0];

  _payPalConfig.payPalShippingAddressOption = PayPalShippingAddressOptionPayPal;

  self.environment = kPayPalEnvironment;

  NSLog(@"PayPal iOS SDK version: %@", [PayPalMobile libraryVersion]);

}

7. 建立支付环境，然后和 paypal 服务器进行预连接

//PayPalHelper.m

- (void)viewWillAppear:(BOOL)animated {

  [super viewWillAppear:animated ];

// Preconnect to PayPal early

[PayPalMobile preconnectWithEnvironment:self.environment]];

}

8.pay 支付

//PayPalHelper.m

- (void)pay:(NSString *)amount{

  NSDecimalNumber *subtotal = [[NSDecimalNumber alloc] initWithString:amount];

  PayPalPayment *payment = [[PayPalPayment alloc] init];

  payment.amount = subtotal;

  payment.currencyCode = @"USD";

  payment.shortDescription = @"Hipster clothing";

  payment.items = nil;  // if not including multiple items, then leave payment.items as nil

payment.paymentDetails = nil; // if not including payment details, then leave payment.paymentDetails as nil

  if (!payment.processable) {

        // This particular payment will always be processable. If, for

        // example, the amount was negative or the shortDescription was

        // empty, this payment wouldn't be processable, and you'd want

        // to handle that here.

  }

  // 下面这一段是为了由控制类调用 paypal 页面的方法

UIViewController *topRootViewController = [UIApplication sharedApplication].keyWindow.rootViewController;

  while (topRootViewController.presentedViewController)

  {

    topRootViewController = topRootViewController.presentedViewController;

  } 

PayPalPaymentViewController *paymentViewController = [[PayPalPaymentViewController alloc] initWithPayment:payment

   configuration:self.payPalConfig

    delegate:self];

  [topRootViewController presentViewController:paymentViewController animated:YES completion:nil];

 

// 这是例子中由页面中的支付按钮调用使用的方法

//    [self presentViewController:paymentViewController animated:YES completion:nil];

}

9. 代理监听

//PayPalHelper.m

#pragma mark - PayPalPaymentDelegate methods

- (void)payPalPaymentViewController:(PayPalPaymentViewController *)paymentViewController

                 didCompletePayment:(PayPalPayment *)completedPayment {

    // Payment was processed successfully; send to server for verification and fulfillment.

    NSLog(@"payPalPaymentViewController");

    [self verifyCompletedPayment:completedPayment];

UIViewController *topRootViewController = [UIApplication sharedApplication].keyWindow.rootViewController;

    while (topRootViewController.presentedViewController)

    {

        topRootViewController = topRootViewController.presentedViewController;

    }

    // Dismiss the PayPalPaymentViewController.

    [topRootViewController dismissViewControllerAnimated:YES completion:nil];

}

 

- (void)payPalPaymentDidCancel:(PayPalPaymentViewController *)paymentViewController {

// The payment was canceled; dismiss the PayPalPaymentViewController.

NSLog(@"payPalPaymentDidCancel");

UIViewController *topRootViewController = [UIApplication sharedApplication].keyWindow.rootViewController;

    while (topRootViewController.presentedViewController)

    {

        topRootViewController = topRootViewController.presentedViewController;

    }

    [topRootViewController dismissViewControllerAnimated:YES completion:nil];

}

10. 给你的服务器发送支付成功、支付失败等信息请求

//PayPalHelper.m

- (void)verifyCompletedPayment:(PayPalPayment *)completedPayment {

// Send the entire confirmation dictionary

NSData *confirmation = [NSJSONSerialization dataWithJSONObject:completedPayment.confirmation    

options:0                                        

error:nil];

}

@end

11 调用方式

//AppDelegate.m

// 初始化

PayPalHelper *g_PayPalHelper = [PayPalHelper getInstance];

  [g_PayPalHelper viewDidAppera];

[g_PayPalHelper viewWillAppear:YES];

 

// 自己的购买按钮的回调方法中调用 paypal 支付

// 支付

 PayPalHelper *g_PayPalHelper = [PayPalHelper getInstance];

 [g_PayPalHelper pay:@"20"];