iOS：苹果内购实践

iOS 苹果的内购

一、介绍

苹果规定，凡是虚拟的物品(例如：QQ音乐的乐币)进行交易时，都必须走苹果的内购通道，苹果要收取大约30%的抽成，所以不允许接入第三方的支付方式（微信、支付宝等），当然开发者可以设置后门，在审核时避开审核人员。这个是有风险的，一旦发现，app会被立即下架，还是老老实实接入内购吧。

二、注意

内购接入还是比较简单的，苹果提供了专门的框架<StoreKit/StoreKit.h>，只要按照它提供的api进行开发就行。然而，接入的过程还是有需要注意的地方，分别是：漏单处理、二次验证、移除交易、游客模式。

漏单处理：这个是一定会存在的，因为用户的一些误操作，造成的漏单基本无法避免，针对这种情况，最终的处理方式就是人工客服。当然，这个过程是可以优化的，开发者可以进行存储订单票据，server存储订单号，本地存储票据。如果用户启动app后，检测到用户上次付了款，但是需要的商品没有给到用户，此时可以自动进行验证并处理，验证通过，就将商品补给用户。

二次验证：这个步骤必不可少，首先正式环境验证，如果验证通过，说明是线上环境，可以正常操作。如果验证不通过，说明是沙盒环境，需要在沙盒环境下再次验证，沙盒环境下的验证结果会有一个统一的弹框标识[Environment : Sandbox]，只要内购没有上线，验证时都是沙盒环境弹框。二次验证的这个过程可以避免在审核app时，因为没有验证通过直接被拒的风险。二次验证放在server端实现，更加安全。

移除交易：用户再次交易时，如果上次的交易没有被移除，那么此次的交易会一直在队列中等候，无法被提交，所以一定要在上次交易完成时移除交易。

游客模式：如果我们的app支持游客使用，那么这个内购就必须要求对游客进行开放，否则审核会被拒绝。

三、使用

1、实现代理

iOS：苹果内购实践-编程知识网

@interface InAppPurchaseViewController ()<SKPaymentTransactionObserver,SKProductsRequestDelegate>
@property (nonatomic, strong)NSMutableArray   *products;
@property (nonatomic, strong)Product          *currentProduct;
@property (nonatomic,   copy)NSString         *currentPayNo;
@end

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2、添加观察者

iOS：苹果内购实践-编程知识网

-(void)viewWillAppear:(BOOL)animated
{[super viewWillAppear:animated];// 添加观察者
    [[SKPaymentQueue defaultQueue] addTransactionObserver:self];
}

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3、移除观察者

iOS：苹果内购实践-编程知识网

-(void)viewWillDisappear:(BOOL)animated
{// 移除观察者
    [[SKPaymentQueue defaultQueue] removeTransactionObserver:self];
}

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4、移除没有关闭的交易并做漏单处理

iOS：苹果内购实践-编程知识网

#pragma mark 先检查之前是否有未关闭的交易并做漏单处理
-(void)checkNotCloseAndFinishedTransaction{NSArray* transactions = [SKPaymentQueue defaultQueue].transactions;for (SKPaymentTransaction* transaction in transactions) {if (transaction.transactionState == SKPaymentTransactionStatePurchased) {[[SKPaymentQueue defaultQueue] finishTransaction:transaction];}}NSArray *tickets = [InAppPurchaseTicketService fetchInAppPurchaseTicket];if (tickets.count > 0) {[MBProgressHUD showMessage:@"正在验证未处理的订单，请稍后"];self.conchChargeView.userInteractionEnabled = NO;for (InAppPurchaseTicket *ticket in tickets) {[self checkAppStorePayResultWithTikect:ticket];}}
}

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5、用户使用productId进行下单

iOS：苹果内购实践-编程知识网

-(void)loadPayNoData{AppWeak(weakSelf, self);NSMutableDictionary *params = [NSMutableDictionary dictionary];params[@"productId"] = self.currentProduct.productId;[InAppPurchaseTicketService getIosOrderWithParams:params success:^(NSArray *items, BOOL isLocalData) {if (items.count >0 ) {InAppPurchaseInfo *inAppPurchaseInfo = items[0];weakSelf.currentPayNo = inAppPurchaseInfo.payNo;[weakSelf startPayForProduct:weakSelf.currentProduct.productId];}} failure:^(id errorInfo) {[self showErrorInfo:errorInfo];}];
}

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6、开始内购

iOS：苹果内购实践-编程知识网

-(void)startPayForProduct:(NSString *)productID{if([SKPaymentQueue canMakePayments]){[MBProgressHUD showMessage:@"正在请求商品信息，请稍等..."];self.conchChargeView.userInteractionEnabled = NO;// productID就是你在创建购买项目时所填写的产品ID
        [self requestProductID:productID];}else{// NSLog(@"不允许程序内付费");UIAlertView *alertError = [[UIAlertView alloc] initWithTitle:@"温馨提示"message:@"请先开启应用内付费购买功能。"delegate:nilcancelButtonTitle:@"确定"otherButtonTitles: nil];[alertError show];}
}

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7、请求所有的商品ID

iOS：苹果内购实践-编程知识网

-(void)requestProductID:(NSString *)productID{// 1.拿到所有可卖商品的ID数组NSMutableArray *productIDArray = [NSMutableArray array];for (Product *product in self.products) {[productIDArray addObject:product.productId];}NSSet *sets = [[NSSet alloc] initWithArray:productIDArray];// 2.向苹果发送请求，请求所有可买的商品// 2.1.创建请求对象SKProductsRequest *sKProductsRequest = [[SKProductsRequest alloc]initWithProductIdentifiers:sets];// 2.2.设置代理(在代理方法里面获取所有的可卖的商品)sKProductsRequest.delegate = self;// 2.3.开始请求
    [sKProductsRequest start];
}

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8、获取苹果那边的内购监听

iOS：苹果内购实践-编程知识网

//请求成功
-(void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response{NSArray *product = response.products;if([product count] == 0){[MBProgressHUD hideHUD];self.conchChargeView.userInteractionEnabled = YES;UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"提示" message:@"没有商品" delegate:nil cancelButtonTitle:@"关闭" otherButtonTitles:nil, nil];[alertView show];return;}for (SKProduct *sKProduct in product) {NSLog(@"SKProduct 描述信息：%@", sKProduct.description);NSLog(@"localizedTitle 产品标题：%@", sKProduct.localizedTitle);NSLog(@"localizedDescription 产品描述信息：%@",sKProduct.localizedDescription);NSLog(@"price 价格：%@",sKProduct.price);NSLog(@"productIdentifier Product id：%@",sKProduct.productIdentifier);if([sKProduct.productIdentifier isEqualToString:self.currentProduct.productId]){[self buyProduct:sKProduct];break;}}
}//请求失败
- (void)request:(SKRequest *)request didFailWithError:(NSError *)error{[MBProgressHUD hideHUD];self.conchChargeView.userInteractionEnabled = YES;UIAlertView *alerView =  [[UIAlertView alloc] initWithTitle:@"提示" message:[error localizedDescription] delegate:nil cancelButtonTitle:@"关闭" otherButtonTitles:nil];[alerView show];}

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9、创建票据，在队列中等候处理

iOS：苹果内购实践-编程知识网

-(void)buyProduct:(SKProduct *)product{// 1.创建票据SKPayment *skpayment = [SKPayment paymentWithProduct:product];// 2.将票据加入到交易队列
    [[SKPaymentQueue defaultQueue] addPayment:skpayment];
}

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10、内购回调

iOS：苹果内购实践-编程知识网

#pragma mark 4.实现观察者监听付钱的代理方法,只要交易发生变化就会走下面的方法
-(void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions{/*SKPaymentTransactionStatePurchasing,    正在购买SKPaymentTransactionStatePurchased,     已经购买SKPaymentTransactionStateFailed,        购买失败SKPaymentTransactionStateRestored,      回复购买中SKPaymentTransactionStateDeferred       交易还在队列里面，但最终状态还没有决定*/for (SKPaymentTransaction *transaction in transactions) {switch (transaction.transactionState) {case SKPaymentTransactionStatePurchasing:{[MBProgressHUD hideHUD];[MBProgressHUD showMessage:@"正在购买中，别走开..."];NSLog(@"正在购买...");}break;case SKPaymentTransactionStatePurchased:{// 购买后告诉交易队列，把这个成功的交易移除掉
                [queue finishTransaction:transaction];[MBProgressHUD hideHUD];[self SavePaymentTransactionpAfterbuyAppleStoreProductSucceed:transaction];NSLog(@"购买成功");}break;case SKPaymentTransactionStateFailed:{// 购买失败也要把这个交易移除掉
                [queue finishTransaction:transaction];[MBProgressHUD hideHUD];self.conchChargeView.userInteractionEnabled = YES;NSString *errorInfo = @"购买失败，请稍后重新购买";if (transaction.error) {NSString *reason = transaction.error.userInfo[NSLocalizedFailureReasonErrorKey];if ([StringUtility isStringNotEmptyOrNil:reason]) {errorInfo = reason;}}UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"提示" message:errorInfo delegate:nil cancelButtonTitle:@"关闭" otherButtonTitles:nil, nil];[alertView show];NSLog(@"购买失败");}break;case SKPaymentTransactionStateRestored:{// 回复购买中也要把这个交易移除掉
                [queue finishTransaction:transaction];[MBProgressHUD hideHUD];self.conchChargeView.userInteractionEnabled = YES;UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"提示" message:@"重复购买了" delegate:nil cancelButtonTitle:@"关闭" otherButtonTitles:nil, nil];[alertView show];NSLog(@"重复购买了");}break;case SKPaymentTransactionStateDeferred:{NSLog(@"交易还在队列里面，但最终状态还没有决定");}break;default:break;}}
}

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11、本地存储票据

iOS：苹果内购实践-编程知识网

// 苹果内购支付成功
- (void)SavePaymentTransactionpAfterbuyAppleStoreProductSucceed:(SKPaymentTransaction *)paymentTransactionp {// 传输的是BASE64编码的字符串// 验证凭据，获取到苹果返回的交易凭据// appStoreReceiptURL iOS7.0增加的，购买交易完成后，会将凭据存放在该地址NSURL *receiptURL = [[NSBundle mainBundle] appStoreReceiptURL];// 从沙盒中获取到购买凭据NSData *receiptData = [NSData dataWithContentsOfURL:receiptURL];// 传输的是BASE64编码的字符串NSString *reciept = [receiptData base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithLineFeed];// productIdentifierNSString *productIdentifier = paymentTransactionp.payment.productIdentifier;if ([productIdentifier length]>0) {//本地存储票据InAppPurchaseTicket *ticket = [[InAppPurchaseTicket alloc] init];ticket.payNo = self.currentPayNo;ticket.productId = self.currentProduct.productId;ticket.reciept = reciept;ticket.state = 1;[InAppPurchaseTicketService saveLocalTransaction:ticket];// 去验证是否真正的支付成功了[MBProgressHUD showMessage:@"购买成功,正在验证订单..."];[self checkAppStorePayResultWithTikect:ticket];}
}

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12、二次验证

iOS：苹果内购实践-编程知识网

#pragma mark 服务端验证购买凭据
- (void)checkAppStorePayResultWithTikect:(InAppPurchaseTicket *)tikect {/*生成订单参数，注意沙盒测试账号与线上正式苹果账号的验证途径不一样，要给后台标明注意：自己测试的时候使用的是沙盒购买(测试环境)App Store审核的时候也使用的是沙盒购买(测试环境)上线以后就不是用的沙盒购买了(正式环境)所以此时应该先验证正式环境，在验证测试环境正式环境验证成功，说明是线上用户在使用正式环境验证不成功返回21007，说明是自己测试或者审核人员在测试苹果AppStore线上的购买凭证地址是： https://buy.itunes.apple.com/verifyReceipt测试地址是：https://sandbox.itunes.apple.com/verifyReceipt*/NSString *sandbox;
#ifdef TESTsandbox = @"0"; //沙盒测试环境
#elsesandbox = @"1"; //线上正式环境
#endifif (!tikect || !tikect.payNo || tikect.payNo.length==0 || !tikect.reciept || tikect.reciept.length==0) {return;}AppWeak(weakSelf, self);NSMutableDictionary *params = [[NSMutableDictionary alloc] init];params[@"payno"]   = tikect.payNo;               //订单号params[@"sandbox"] = sandbox;                    //使用环境params[@"receipt"] = tikect.reciept;             //票据信息
    [InAppPurchaseTicketService doubleIosVerifyWithParams:params success:^(NSArray *items, BOOL isLocalData) {//隐藏loding
        [MBProgressHUD hideHUD];[MBProgressHUD showSuccess:@"恭喜你，购买成功" afterDelay:2.0];weakSelf.conchChargeView.userInteractionEnabled = YES;//清除本地当前对应订单票据InAppPurchaseInfo *info = items[0];[InAppPurchaseTicketService clearInAppPurchaseTicketWithPayNo:info.payNo];//刷新UIif (self.fromVCType == FromVCTypeCurrentInAppPurchaseVC) {[weakSelf loadConchData];}else{//回调并跳转页面if (weakSelf.chargeConchSuccsssBlock) {dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{weakSelf.chargeConchSuccsssBlock(@(YES));[weakSelf.navigationController popViewControllerAnimated:YES];});}}} failure:^(id errorInfo) {[MBProgressHUD hideHUD];weakSelf.conchChargeView.userInteractionEnabled = YES;UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"验证失败" message:errorInfo delegate:nil cancelButtonTitle:@"关闭" otherButtonTitles:nil, nil];[alertView show];}];
}

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13、懒加载plist中的所有约定的商品productId

iOS：苹果内购实践-编程知识网

-(NSMutableArray *)products{if (!_products) {_products = [NSMutableArray array];NSString *path = [[NSBundle mainBundle] pathForResource:@"Products" ofType:@"plist"];NSArray *items = [NSArray arrayWithContentsOfFile:path];if ([ArrayUtility isArrayNotEmptyOrNil:items]) {for (NSDictionary *dic in items) {Product *product = [[Product alloc] initWithProperties:dic];[_products addObject:product];}}}return _products;
}