import StoreKit func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool { /* ... */ SKPaymentQueue.defaultQueue().addTransactionObserver(observer) /* ... */ return true } import StoreKit class YourAnyClass: UIViewController { // 諸々省略 func startPurchaseTransaction { let productRequest = SKProductsRequest(productIdentifiers: ["YOUR_PR

