Swift Sprite Kit 应用内购买

Posted 2023-02-23

【中文标题】Swift Sprite Kit 应用内购买

【英文标题】：Swift Sprite Kit In App Purchase

【发布时间】：2015-01-08 23:39:48

【问题描述】：

我在 SKScene 中有一个按钮（使用 Swift）——“添加拼图” 当用户点击这个按钮时，我想去一个 UIView 控制器或 UI 场景，这样我就可以实现 In App Purchase 代码......（SkScenes 是 UIViews 的子集，无法运行代码......）

有没有人有一个基本的想法如何做到这一点...

我对此有点缺乏经验...我使用过cocos2d和现在的Sprite Kit，并且总是手动设置所有内容，并且对.xib文件和视图控制器的经验很少...

有谁知道如何做到这一点的基本思路？感谢您的帮助！

安迪

【问题讨论】：

这个答案演示了 SKScene 如何与 UIViewController 进行通信：***.com/a/22555881/2043580

【参考方案1】：

您可以在 SKScene 中设置应用内购买，您可能需要调整一些代码，但它会起作用。这是一个例子

import Spritekit
import Storekit


class Store:SKScene, SKProductsRequestDelegate, SKPaymentTransactionObserver  

override func didMoveToView 

    // Set IAPS
    if(SKPaymentQueue.canMakePayments()) 
        println("IAP is enabled, loading")
        var productID:NSSet = NSSet(objects: "bundle id", "bundle id")
        var request: SKProductsRequest = SKProductsRequest(productIdentifiers: productID)
        request.delegate = self
        request.start()
     else 
        println("please enable IAPS")
    



// 2
func btnRemoveAds() 
    for product in list 
        var prodID = product.productIdentifier
        if(prodID == "bundle id") 
            p = product
            buyProduct()
            break;
        
    



// 3
func btnAddCoins() 
    for product in list 
        var prodID = product.productIdentifier
        if(prodID == "bundle id") 
            p = product
            buyProduct()
            break;
        
    



// 4
func removeAds() 
    println("ads removed")


// 5
func addCoins() 
    println("added 50 coins")


// 6
func RestorePurchases() 
    SKPaymentQueue.defaultQueue().addTransactionObserver(self)
    SKPaymentQueue.defaultQueue().restoreCompletedTransactions()


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

// 2
func buyProduct() 
    println("buy " + p.productIdentifier)
    var pay = SKPayment(product: p)
    SKPaymentQueue.defaultQueue().addTransactionObserver(self)
    SKPaymentQueue.defaultQueue().addPayment(pay as SKPayment)


//3
func productsRequest(request: SKProductsRequest!, didReceiveResponse response: SKProductsResponse!) 
    println("product request")
    var myProduct = response.products

    for product in myProduct 
        println("product added")
        println(product.productIdentifier)
        println(product.localizedTitle)
        println(product.localizedDescription)
        println(product.price)

        list.append(product as SKProduct)
    


// 4
func paymentQueueRestoreCompletedTransactionsFinished(queue: SKPaymentQueue!) 
    println("transactions restored")

    var purchasedItemIDS = []
    for transaction in queue.transactions 
        var t: SKPaymentTransaction = transaction as SKPaymentTransaction

        let prodID = t.payment.productIdentifier as String

        switch prodID 
        case "bundle id":
            println("remove ads")
            removeAds()
        case "bundleid":
            println("add coins to account")
            addCoins()
        default:
            println("IAP not setup")
        

    


// 5
func paymentQueue(queue: SKPaymentQueue!, updatedTransactions transactions: [AnyObject]!) 
    println("add paymnet")

    for transaction:AnyObject in transactions 
        var trans = transaction as SKPaymentTransaction
        println(trans.error)

        switch trans.transactionState 

        case .Purchased:
            println("buy, ok unlock iap here")
            println(p.productIdentifier)

            let prodID = p.productIdentifier as String
            switch prodID 
                case "bundle id":
                    println("remove ads")
                    removeAds()
                case "bundle id":
                    println("add coins to account")
                    addCoins()
                default:
                    println("IAP not setup")
            

            queue.finishTransaction(trans)
            break;
        case .Failed:
            println("buy error")
            queue.finishTransaction(trans)
            break;
        default:
            println("default")
            break;

        
    


// 6
func finishTransaction(trans:SKPaymentTransaction)

    println("finish trans")


//7
func paymentQueue(queue: SKPaymentQueue!, removedTransactions transactions: [AnyObject]!)

    println("remove trans");

当您想进行购买时，您可以调用 removeAdsButton() 或其他任何方法。

【讨论】：

你在尝试使用变量之前初始化了变量。