如何在iOS11中处理应用内购买的应用商店付款？

我正在尝试实现这种新paymentQueue(_:shouldAddStorePayment:for:)方法,以便我的应用程序可以直接从App Store处理IAP.

我正在使用itms-services://网址来测试它,就像它在这里说的那样.

问题是,我SKPaymentTransactionObserver是一个特定的视图控制器,如果在打开itms-services://链接时它不可见,则不会调用委托方法.

我该怎么办？我想我必须检测用户是否来自App Store推送正确的视图控制器,但我不知道如何.我现在能想到的唯一另一个选择就是让App Delegate成为一个SKPaymentTransactionObserver,但这看起来真的很麻烦,当我尝试它时我无法让它工作.还有其他方法吗？

这是我所做的一个可以帮助你实现你想要的类,只需复制下面的代码并将其粘贴到一个新文件中,然后你就可以简单地访问StoreManager.shared类到你想要访问的任何方法/变量.

1-要初始化此类,只需从didFinishLaunchingWithOptions StoreManager.shared.Begin()调用,然后添加付款观察者.

import Foundation
import StoreKit


class StoreManager: NSObject{

    /**
     Initialize StoreManager and load subscriptions SKProducts from Store
     */
    static let shared = StoreManager()

    func Begin() {
        print("StoreManager initialized"))
    }

    override init() {
        super.init()

        // Add pyament observer to payment qu
        SKPaymentQueue.default().add(self)
    }

    func requestProductWithID(identifers:Set){

        if SKPaymentQueue.canMakePayments() {
            let request = SKProductsRequest(productIdentifiers:
                identifers)
            request.delegate = self
            request.start()
        } else {
            print("ERROR: Store Not Available")
        }
    }

    func buyProduct(product: SKProduct) {

        print("Buying \(product.productIdentifier)...")
        let payment = SKPayment(product: product)
        SKPaymentQueue.default().add(payment)
    }

    func restorePurchases() {

        SKPaymentQueue.default().restoreCompletedTransactions()
    }
}

// MARK:
// MARK: SKProductsRequestDelegate

//The delegate receives the product information that the request was interested in.
extension StoreManager:SKProductsRequestDelegate{

    func productsRequest(_ request: SKProductsRequest, didReceive response: SKProductsResponse) {

        var products = response.products as [SKProduct]

        var buys = [SKProduct]()

        if (products.count > 0) {
            for i in 0 .. Bool {
        return true

        //To hold
        //return false

        //And then to continue
        //SKPaymentQueue.default().add(savedPayment)
    }
}