IOS应用内购买

简介

应用程序内购买是应用程序用于购买额外内容或升级功能。

实例步骤

1.在 iTunes 连接中请确保拥有一个唯一的 App ID（unique App ID ），当创建捆绑的ID（ bundle ID）应用程序更新时，代码会以相应的配置文件签名在Xcode上

2.创建新的应用程序和更新应用程序信息。你可以知道更多有关的，在苹果的 添加新的应用程序 文档中

3.在应用程序页的管理应用程序( Manage In-App Purchase)中，为app内付费添加新产品

4.确保设置的应用程序为的银行详细。需要将其设置为在应用程序内购买（In-App purchase）。此外在 iTunes 中使用管理用户（Manage Users）选项，创建一个测试用户帐户连接您的应用程序的页。

5.下一步是与处理代码和为我们在应用程序内购买创建有关的 UI。

6.创建一个单一的视图应用程序，并在 iTunes 中指定的标识符连接输入捆绑标识符

7.更新ViewController.xib ，如下所示

8.为三个标签创建IBOutlets，且将按钮分别命名为 productTitleLabel、 productDescriptionLabel、 productPriceLabel 和 purchaseButton

9.选择项目文件，然后选择目标，然后添加StoreKit.framework

10.更新ViewController.h ，如下所示

#import <UIKit/UIKit.h>#import <StoreKit/StoreKit.h>@interface ViewController : UIViewController<SKProductsRequestDelegate,SKPaymentTransactionObserver>{SKProductsRequest *productsRequest;NSArray *validProducts;UIActivityIndicatorView *activityIndicatorView;IBOutlet UILabel *productTitleLabel;IBOutlet UILabel *productDescriptionLabel;IBOutlet UILabel *productPriceLabel;IBOutlet UIButton *purchaseButton;}- (void)fetchAvailableProducts;- (BOOL)canMakePurchases;- (void)purchaseMyProduct:(SKProduct*)product;- (IBAction)purchase:(id)sender;@end

11.更新ViewController.m ，如下所示

#import "ViewController.h"#define kTutorialPointProductID@"com.tutorialPoints.testApp.testProduct"@interface ViewController ()@end@implementation ViewController- (void)viewDidLoad{[super viewDidLoad];// Adding activity indicatoractivityIndicatorView = [[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];activityIndicatorView.center = self.view.center;[activityIndicatorView hidesWhenStopped];[self.view addSubview:activityIndicatorView];[activityIndicatorView startAnimating];//Hide purchase button initiallypurchaseButton.hidden = YES;[self fetchAvailableProducts]; }- (void)didReceiveMemoryWarning{[super didReceiveMemoryWarning];// Dispose of any resources that can be recreated.}-(void)fetchAvailableProducts{NSSet *productIdentifiers = [NSSetsetWithObjects:kTutorialPointProductID,nil];productsRequest = [[SKProductsRequest alloc]initWithProductIdentifiers:productIdentifiers];productsRequest.delegate = self;[productsRequest start];}- (BOOL)canMakePurchases{return [SKPaymentQueue canMakePayments];}- (void)purchaseMyProduct:(SKProduct*)product{if ([self canMakePurchases]) {SKPayment *payment = [SKPayment paymentWithProduct:product];[[SKPaymentQueue defaultQueue] addTransactionObserver:self];[[SKPaymentQueue defaultQueue] addPayment:payment];}else{UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"Purchases are disabled in your device" message:nil delegate:self cancelButtonTitle:@"Ok" otherButtonTitles: nil];[alertView show];}}-(IBAction)purchase:(id)sender{[self purchaseMyProduct:[validProducts objectAtIndex:0]];purchaseButton.enabled = NO;}#pragma mark StoreKit Delegate-(void)paymentQueue:(SKPaymentQueue *)queueupdatedTransactions:(NSArray *)transactions {for (SKPaymentTransaction *transaction in transactions) {switch (transaction.transactionState) {case SKPaymentTransactionStatePurchasing:NSLog(@"Purchasing");break; case SKPaymentTransactionStatePurchased:if ([transaction.payment.productIdentifierisEqualToString:kTutorialPointProductID]) {NSLog(@"Purchased ");UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"Purchase is completed succesfully" message:nil delegate:self cancelButtonTitle:@"Ok" otherButtonTitles: nil];[alertView show];} [[SKPaymentQueue defaultQueue] finishTransaction:transaction];break; case SKPaymentTransactionStateRestored: NSLog(@"Restored "); [[SKPaymentQueue defaultQueue] finishTransaction:transaction];break; case SKPaymentTransactionStateFailed:NSLog(@"Purchase failed ");break;default:break;}}}-(void)productsRequest:(SKProductsRequest *)requestdidReceiveResponse:(SKProductsResponse *)response{SKProduct *validProduct = nil;int count = [response.products count];if (count>0) {validProducts = response.products;validProduct = [response.products objectAtIndex:0];if ([validProduct.productIdentifierisEqualToString:kTutorialPointProductID]) {[productTitleLabel setText:[NSString stringWithFormat:@"Product Title: %@",validProduct.localizedTitle]];[productDescriptionLabel setText:[NSString stringWithFormat:@"Product Desc: %@",validProduct.localizedDescription]];[productPriceLabel setText:[NSString stringWithFormat:@"Product Price: %@",validProduct.price]]; } } else {UIAlertView *tmp = [[UIAlertView alloc]initWithTitle:@"Not Available"message:@"No products to purchase"delegate:selfcancelButtonTitle:nilotherButtonTitles:@"Ok", nil];[tmp show];} [activityIndicatorView stopAnimating];purchaseButton.hidden = NO;}@end

注意： 需要修改你创建In-App Pur（应用内购买）的 kTutorialPointProductID 。通过修改fetchAvailableProducts产品标识符的 NSSet, 你可以添加多个产品。

输出

运行该应用程序,输出结果如下

确保已经中登录。单击购买选择现有的Apple ID。输入有效的测试帐户的用户名和密码。几秒钟后，显示下面的信息

一旦产品成功购买，将获得以下信息。可以在显示此信息的地方，更新应用功能相关的代码