In-App Purchase Implementation
As we discussed, the process of making a purchase is really just two calls to the iTunes Store. We will see in this section that it really only involves a handful of classes. In our example, we will be handling most of the details of working with StoreKit and handling the UI in a single class called ExtrasController, whose header is shown in Listing 10–1.
Listing 10–1. ExtrasController.h
@interface ExtrasController : UIViewController<SKPaymentTransactionObserver, SKProductsRequestDelegate>{
GameParameters* gameParams;
}
@property (strong, nonatomic) IBOutlet UIButton *asteroidButton;
@property (strong, nonatomic) IBOutlet UIButton *saucerButton; @property (strong, nonatomic) IBOutlet UIButton *powerupButton; ...Get Beginning iOS 5 Games Development: Using the iOS 5 SDK for iPad, iPhone, and iPod Touch now with the O’Reilly learning platform.
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