"SwiftyStoreKit.completeTransactions()只能在应用程序启动时调用一次。“

Question

我在SwiftUI和应用程序中使用SwiftUI，而不是App，并在控制台中得到这样的消息："SwiftyStoreKit.completeTransactions()只能在应用程序启动时调用一次。“我相信这是因为我在下面的块中调用completeTransactions，我可以从Print语句中看到它比以前调用AppDelegate的didFinishLaunching更频繁。我之所以关注这条信息，是因为在试图购买时，我因为崩溃而被App拒绝。我还应该在哪里打电话给completeTransactions？

     .onChange(of: scenePhase) { newScenePhase in
                switch newScenePhase {
                case .active:
                    print("App is active")

  SwiftyStoreKit.completeTransactions(atomically: true) { purchases in
            
            for purchase in purchases {
                switch purchase.transaction.transactionState {
                case .purchased, .restored:
                    let downloads = purchase.transaction.downloads
                    if !downloads.isEmpty {
                        SwiftyStoreKit.start(downloads)
                    } else if purchase.needsFinishTransaction {
                        // Deliver content from server, then:
                        SwiftyStoreKit.finishTransaction(purchase.transaction)
                    }
                    print("\(purchase.transaction.transactionState.debugDescription): \(purchase.productId)")
                case .failed, .purchasing, .deferred:
                    break // do nothing
                @unknown default:
                    break // do nothing
                }
            }
        }

Answer 1

尝试在app main init中这样做，比如

@main
struct MyApp: App {

    init() {
        SwiftyStoreKit.completeTransactions(atomically: true) { purchases in
           // ... other code here
        }
    }

    var body: some Scene {
        WindowGroup {
           ContentView()
        }
    }
}

注意：，如果为时尚早，那么您可以定义应用程序委托适配器(如这里的https://stackoverflow.com/a/62538373/12299030)，并调用SwiftyStoreKit on确实完成了启动回调。