Swift 如何禁用用于应用内购买的按钮，而不将其放入另一个线程？

在我的导航栏中，我有一个按钮可以在应用程序中购买东西

let acheterSuppressionPub: UIButton!
let acheterSuppressionPubButtonItem = UIBarButtonItem(customView: acheterSuppressionPub)
acheterSuppressionPub.addTarget(self, action: #selector(ProposerSupprimerPub), for: .touchUpInside)
@objc private func ProposerSupprimerPub() {
        if self.adsView.isHidden == false {
            afficherSupprimerForAllPubAlert()
        }
    }

在视图控制器中，我有以下内容：

// désactiver les boutons d'achats
        self.acheterSuppressionPub.isEnabled = false
        self.acheterSuppressionPub.isHidden = true
        
        // Purchase
        if(SKPaymentQueue.canMakePayments()) {
            print("IAP is enabled, loading")
            let productID: NSSet = NSSet(objects:
                "com.KingsFit-W.myfood.removeads")
            let request: SKProductsRequest = SKProductsRequest(productIdentifiers: productID as! Set<String>)
            request.delegate = self
            request.start()
        } else {
            print("please enable IAPS")
        }

以下是购买产品的功能：

func buyProduct() {
        print("Acheter " + unAchat.productIdentifier)
        let pay = SKPayment(product: unAchat)
        SKPaymentQueue.default().add(self)
        SKPaymentQueue.default().add(pay as SKPayment)
    }

func removeAds() {
        self.adsView.isHidden = true
        self.acheterSuppressionPub.isHidden = true
        self.acheterSuppressionPub.isEnabled = false
    }

以下是出现问题的函数：

func productsRequest(_ request: SKProductsRequest, didReceive 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)
            
            listeDesAchats.append(product)
        }
        /////////////////////////////////////////////////////////////////
        self.acheterSuppressionPub.isEnabled = true // it says: -[UIButton setEnabled:] must be used from main thread only
        self.acheterSuppressionPub.isHidden = false
///////////////////////////////////////////////////////
    }

它说：-[UIButton setEnabled:]只能从主线程使用

以下是协议功能：

func paymentQueueRestoreCompletedTransactionsFinished(_ queue: SKPaymentQueue) {
        print("transactions restored")
        for transaction in queue.transactions {
            let t: SKPaymentTransaction = transaction
            let prodID = t.payment.productIdentifier as String
            
            switch prodID {
                case "com.KingsFit-W.myfood.removeads":
                    print("remove ads")
                    removeAds()
                default:
                    print("IAP not found")
            }
        }
    }

func paymentQueue(_ queue: SKPaymentQueue, updatedTransactions transactions: [SKPaymentTransaction]) {
        print("add payment")
        
        for transaction: AnyObject in transactions {
            let trans = transaction as! SKPaymentTransaction
            print(trans.error as Any)
            
            switch trans.transactionState {
            case .purchased:
                print("buy ok, unlock IAP HERE")
                print(unAchat.productIdentifier)
                
                let prodID = unAchat.productIdentifier
                switch prodID {
                    case "xxxxxxxxx.removeads":
                        print("remove ads")
                        removeAds()
                    default:
                        print("IAP not found")
                }
                queue.finishTransaction(trans)
            case .failed:
                print("buy error")
                queue.finishTransaction(trans)
                break
            default:
                print("Default")
                break
            }
        }
    }

如何禁用和隐藏acheterSuppressionPub按钮，而不将其放入另一个线程？

---

我想停用它，以防止用户在网络请求尚未完成时再次按下它。

与接口的所有通信必须在主线程上。跳出到主线程与接口对话的标准方式是：

DispatchQueue.main.async {
    self.acheterSuppressionPub.isEnabled = true 
    self.acheterSuppressionPub.isHidden = false
}

同样地：

func removeAds() {
    DispatchQueue.main.async {
        self.adsView.isHidden = true
        self.acheterSuppressionPub.isHidden = true
        self.acheterSuppressionPub.isEnabled = false
    }
}

func removeAds() {
    DispatchQueue.main.async {
        self.adsView.isHidden = true
        self.acheterSuppressionPub.isHidden = true
        self.acheterSuppressionPub.isEnabled = false
    }
}