獲取用於在Swift中恢復應用內購買的已購買產品ID的列表

Question

我正在Swift中創建一個帶有應用內購買列表的應用程序。 我想做的是獲取/獲取“已購買”產品標識符的列表。

func productsRequest(request: SKProductsRequest!, didReceiveResponse response: SKProductsResponse!) {

}

例如，在上述方法中，我們可以獲得可用產品的列表。 除了獲取該列表之外，我還想獲取“已購買的產品ID”列表。 然后，我將遍歷該列表並啟用這些產品的所有功能。

有什么方法可以獲取該列表？ 還是您可以通過其他方式獲得該列表？

Answer 1

您的問題和有關代碼的信息太少。 我建議您檢查一下我剛才回答的問題： 我的IAP無法正常工作。 功能付款隊列中的錯誤

它包含有效的IAP代碼和一些提示。 希望對您有所幫助！

這是完整的IAP代碼：

import UIKit
import StoreKit


class GameViewController: UIViewController, ADBannerViewDelegate, SKProductsRequestDelegate, SKPaymentTransactionObserver, GKGameCenterControllerDelegate,GADBannerViewDelegate{


    @IBOutlet var outRemoveAds: UIButton!
    @IBOutlet var outRestorePurchases: UIButton!


    override func viewDidLoad() {
        super.viewDidLoad()

    }

    override func viewWillAppear(animated: Bool) {
        super.viewWillAppear(animated)

        if NSUserDefaults.standardUserDefaults().objectForKey("val") != nil {
            print("Has a value.")
            banner.removeFromSuperview()
            bannerGoogle.removeFromSuperview()
            outRemoveAds.removeFromSuperview()
            outRestorePurchases.removeFromSuperview()
            removeInterFrom = 1
        }
        else {
            print("No Value.")
        }

        if(SKPaymentQueue.canMakePayments()){
            print("IAP is enabled, loading...")
            let productID:NSSet = NSSet(objects:"IAP id")
            let request: SKProductsRequest = SKProductsRequest(productIdentifiers: productID as! Set<String>)
            request.delegate = self
            request.start()
        }
        else{
            print("Please enable IAPS")

        }

    }


    //IAP Ads

    @IBAction func removeAds(sender: UIButton) {
        for product in list{
            let prodID = product.productIdentifier
            if (prodID == "IAP id"){
                p = product
                buyProduct()
                break
            }
        }
    }
    @IBAction func restorePurchases(sender: UIButton) {
        SKPaymentQueue.defaultQueue().restoreCompletedTransactions()
    }


    //IAP Functions

    var list = [SKProduct]()
    var p = SKProduct()

    func removeAds(){
        banner.removeFromSuperview()
        bannerGoogle.removeFromSuperview()
        outRemoveAds.removeFromSuperview()
        outRestorePurchases.removeFromSuperview()
        let theValue = 10
        NSUserDefaults.standardUserDefaults().setObject(theValue, forKey: "val")
        NSUserDefaults.standardUserDefaults().synchronize()
    }

    func buyProduct(){
        print("Buy: "+p.productIdentifier)
        let pay = SKPayment (product: p)
        SKPaymentQueue.defaultQueue().addPayment(pay as SKPayment)
    }

    func productsRequest(request: SKProductsRequest, didReceiveResponse response: SKProductsResponse) {
        print("Product Request")
        let myProduct = response.products

        for product in myProduct{
            print("Product Added")
            print(product.productIdentifier)
            print(product.localizedTitle)
            print(product.localizedDescription)
            print(product.price)

            list.append(product as SKProduct)
        }
    }

    func paymentQueue(queue: SKPaymentQueue, updatedTransactions transactions: [SKPaymentTransaction]) {
        print("Add Payment")

        for transaction:AnyObject in transactions{
            let trans = transaction as! SKPaymentTransaction
            print(trans.error)
            switch trans.transactionState{
            case .Purchased:
                print("IAP unlocked")
                print(p.productIdentifier)

                let prodID = p.productIdentifier as String
                switch prodID{
                case "IAP id":
                    print("Remove Ads")
                    removeAds()
                default:
                    print("IAP not setup")
                }
                queue.finishTransaction(trans)
                break
            case .Failed:
                print ("Buy error")
                queue.finishTransaction(trans)
                break
            default:
                print("default: Error")
                break
            }
        }
    }

    func paymentQueueRestoreCompletedTransactionsFinished(queue: SKPaymentQueue) {
        print("Purchases Restored")

        _ = []
        for transaction in queue.transactions {
            let t: SKPaymentTransaction = transaction as SKPaymentTransaction

            let prodID = t.payment.productIdentifier as String
            switch prodID{
            case "IAP id":
                print("Remove Ads")
                removeAds()
            default:
                print("IAP not setup")
            }


        }
    }
    func finishTransaction(trans:SKPaymentTransaction){
        print("Finshed Transaction")
    }

    func paymentQueue(queue: SKPaymentQueue, removedTransactions transactions: [SKPaymentTransaction]) {
        print("Remove Transaction")
    }
}

放：

SKPaymentQueue.defaultQueue().addTransactionObserver(self) 

在viewDidLoad或viewDidAppear 。