快速答案

Question

如何在iOS应用中添加应用内购买？什么是详细信息，是否有示例代码？

_{这对于如何将应用内购买添加到iOS应用程序来说是一种各种各样的方法}

Answer 1

将Jojodmo代码翻译成Swift：

class InAppPurchaseManager: NSObject , SKProductsRequestDelegate, SKPaymentTransactionObserver{





//If you have more than one in-app purchase, you can define both of
//of them here. So, for example, you could define both kRemoveAdsProductIdentifier
//and kBuyCurrencyProductIdentifier with their respective product ids
//
//for this example, we will only use one product

let kRemoveAdsProductIdentifier = "put your product id (the one that we just made in iTunesConnect) in here"

@IBAction func tapsRemoveAds() {

    NSLog("User requests to remove ads")

    if SKPaymentQueue.canMakePayments() {
        NSLog("User can make payments")

        //If you have more than one in-app purchase, and would like
        //to have the user purchase a different product, simply define
        //another function and replace kRemoveAdsProductIdentifier with
        //the identifier for the other product
        let set : Set<String> = [kRemoveAdsProductIdentifier]
        let productsRequest = SKProductsRequest(productIdentifiers: set)
        productsRequest.delegate = self
        productsRequest.start()

    }
    else {
        NSLog("User cannot make payments due to parental controls")
        //this is called the user cannot make payments, most likely due to parental controls
    }
}


func purchase(product : SKProduct) {

    let payment = SKPayment(product: product)
    SKPaymentQueue.defaultQueue().addTransactionObserver(self)
    SKPaymentQueue.defaultQueue().addPayment(payment)
}

func restore() {
    //this is called when the user restores purchases, you should hook this up to a button
    SKPaymentQueue.defaultQueue().addTransactionObserver(self)
    SKPaymentQueue.defaultQueue().restoreCompletedTransactions()
}


func doRemoveAds() {
    //TODO: implement
}

/////////////////////////////////////////////////
//////////////// store delegate /////////////////
/////////////////////////////////////////////////
// MARK: - store delegate -


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

    if let validProduct = response.products.first {
        NSLog("Products Available!")
        self.purchase(validProduct)
    }
    else {
        NSLog("No products available")
        //this is called if your product id is not valid, this shouldn't be called unless that happens.
    }
}

func paymentQueueRestoreCompletedTransactionsFinished(queue: SKPaymentQueue) {


    NSLog("received restored transactions: \(queue.transactions.count)")
    for transaction in queue.transactions {
        if transaction.transactionState == .Restored {
            //called when the user successfully restores a purchase
            NSLog("Transaction state -> Restored")

            //if you have more than one in-app purchase product,
            //you restore the correct product for the identifier.
            //For example, you could use
            //if(productID == kRemoveAdsProductIdentifier)
            //to get the product identifier for the
            //restored purchases, you can use
            //
            //NSString *productID = transaction.payment.productIdentifier;
            self.doRemoveAds()
            SKPaymentQueue.defaultQueue().finishTransaction(transaction)
            break;
        }
    }
}


func paymentQueue(queue: SKPaymentQueue, updatedTransactions transactions: [SKPaymentTransaction]) {

    for transaction in transactions {
        switch transaction.transactionState {
        case .Purchasing: NSLog("Transaction state -> Purchasing")
            //called when the user is in the process of purchasing, do not add any of your own code here.
        case .Purchased:
            //this is called when the user has successfully purchased the package (Cha-Ching!)
            self.doRemoveAds() //you can add your code for what you want to happen when the user buys the purchase here, for this tutorial we use removing ads
            SKPaymentQueue.defaultQueue().finishTransaction(transaction)
            NSLog("Transaction state -> Purchased")
        case .Restored:
            NSLog("Transaction state -> Restored")
            //add the same code as you did from SKPaymentTransactionStatePurchased here
            SKPaymentQueue.defaultQueue().finishTransaction(transaction)
        case .Failed:
            //called when the transaction does not finish
            if transaction.error?.code == SKErrorPaymentCancelled {
                NSLog("Transaction state -> Cancelled")
                //the user cancelled the payment ;(
            }
            SKPaymentQueue.defaultQueue().finishTransaction(transaction)
        case .Deferred:
            // The transaction is in the queue, but its final status is pending external action.
            NSLog("Transaction state -> Deferred")

        }


    }
}
}

Answer 2

RMStore是一款适用于应用内购买的轻量级iOS库。它包装了StoreKit API，为您提供了异步请求的方便块。购买产品就像调用单一方法一样简单。

对于高级用户，此库还提供收据验证，内容下载和事务持久性。

Answer 3

我知道发布这篇文章已经很晚了，但是当我学习IAP模型的绳索时，我也有类似的经历。

应用内购买是Storekit框架实现的iOS中最全面的工作流程之一。如果你耐心阅读它，entire documentation就很清楚了，但在技术性方面有点先进。

总结：

1 - 申请产品 - 使用SKProductRequest＆amp; SKProductRequestDelegate类发出产品ID请求，并从您自己的itunesconnect商店接收回来。

这些SKProducts应该用于填充用户可以用来购买特定产品的商店用户界面。

2 - 发出付款申请 - 使用SKPayment＆amp; SKPaymentQueue将付款添加到交易队列。

3 - 监控状态更新的事务队列 - 使用SKPaymentTransactionObserver协议的updatedTransactions方法监控状态：

SKPaymentTransactionStatePurchasing - don't do anything
SKPaymentTransactionStatePurchased - unlock product, finish the transaction
SKPaymentTransactionStateFailed - show error, finish the transaction
SKPaymentTransactionStateRestored - unlock product, finish the transaction

4 - 恢复按钮流程 - 使用SKPaymentQueue的restoreCompletedTransactions来完成此任务 - 第3步将处理其余部分，以及SKPaymentTransactionObserver的以下方法：

paymentQueueRestoreCompletedTransactionsFinished
restoreCompletedTransactionsFailedWithError

Here是一个循序渐进的教程（由我自己试图理解它而由我撰写）解释了它。最后，它还提供了您可以直接使用的代码示例。

Here是我创建的另一个用于解释某些事情的文章，只有文字才能更好地描述。

Answer 4

快速答案

这旨在为Swift用户补充my Objective-C answer，以防止Objective-C的答案变得太大。

设置

首先，在appstoreconnect.apple.com上设置应用内购买。按照my Objective-C answer的开始部分（ App Store Connect 标头下的步骤1-13）获取有关执行此操作的说明。

您的产品ID在App Store Connect中注册可能需要几个小时，请耐心等待。

现在您已经在App Store Connect上设置了应用内购买信息，我们需要将Apple的应用内购买框架StoreKit添加到应用中。

进入Xcode项目，然后转到应用程序管理器（应用程序文件所在的左栏顶部的蓝色页面状图标）。单击左侧目标下方的应用程序（应该是第一个选项），然后转到顶部的“功能”。在列表上，您应该看到一个“应用内购买”选项。打开此功能，Xcode将StoreKit添加到您的项目中。

编码

现在，我们将开始编码！

首先，制作一个新的swift文件，该文件将管理您的所有应用内购买。我将其称为IAPManager.swift。

在此文件中，我们将创建一个名为IAPManager的新类，它是一个SKProductsRequestDelegate和SKPaymentTransactionObserver。在顶部，确保导入Foundation和StoreKit

import Foundation
import StoreKit

public class IAPManager: NSObject, SKProductsRequestDelegate,
                         SKPaymentTransactionObserver {
}

接下来，我们将添加一个变量来定义应用内购买的标识符（您也可以使用enum，如果您有多个IAP，则更易于维护）。

// This should the ID of the in-app-purchase you made on AppStore Connect.
// if you have multiple IAPs, you'll need to store their identifiers in
// other variables, too (or, preferably in an enum).
let removeAdsID = "com.skiplit.removeAds"

接下来我们为我们的班级添加一个初始化器：

// This is the initializer for your IAPManager class
//
// A better, and more scaleable way of doing this
// is to also accept a callback in the initializer, and call
// that callback in places like the paymentQueue function, and
// in all functions in this class, in place of calls to functions
// in RemoveAdsManager (you'll see those calls in the code below).

let productID: String
init(productID: String){
    self.productID = productID
}

现在，我们将添加使SKProductsRequestDelegate和SKPaymentTransactionObserver工作所需的功能：

_{我们稍后将添加RemoveAdsManager类}

// This is called when a SKProductsRequest receives a response
public func productsRequest(_ request: SKProductsRequest, didReceive response: SKProductsResponse){
    // Let's try to get the first product from the response
    // to the request
    if let product = response.products.first{
        // We were able to get the product! Make a new payment
        // using this product
        let payment = SKPayment(product: product)

        // add the new payment to the queue
        SKPaymentQueue.default().add(self)
        SKPaymentQueue.default().add(payment)
    }
    else{
        // Something went wrong! It is likely that either
        // the user doesn't have internet connection, or
        // your product ID is wrong!
        //
        // Tell the user in requestFailed() by sending an alert,
        // or something of the sort

        RemoveAdsManager.removeAdsFailure()
    }
}

// This is called when the user restores their IAP sucessfully
private func paymentQueueRestoreCompletedTransactionsFinished(_ queue: SKPaymentQueue){
    // For every transaction in the transaction queue...
    for transaction in queue.transactions{
        // If that transaction was restored
        if transaction.transactionState == .restored{
            // get the producted ID from the transaction
            let productID = transaction.payment.productIdentifier

            // In this case, we have only one IAP, so we don't need to check
            // what IAP it is. However, this is useful if you have multiple IAPs!
            // You'll need to figure out which one was restored
            if(productID.lowercased() == IAPManager.removeAdsID.lowercased()){
                // Restore the user's purchases
                RemoveAdsManager.restoreRemoveAdsSuccess()
            }

            // finish the payment
            SKPaymentQueue.default().finishTransaction(transaction)
        }
    }
}

// This is called when the state of the IAP changes -- from purchasing to purchased, for example.
// This is where the magic happens :)
public func paymentQueue(_ queue: SKPaymentQueue, updatedTransactions transactions: [SKPaymentTransaction]){
    for transaction in transactions{
        // get the producted ID from the transaction
        let productID = transaction.payment.productIdentifier

        // In this case, we have only one IAP, so we don't need to check
        // what IAP it is.
        // However, if you have multiple IAPs, you'll need to use productID
        // to check what functions you should run here!

        switch transaction.transactionState{
        case .purchasing:
            // if the user is currently purchasing the IAP,
            // we don't need to do anything.
            //
            // You could use this to show the user
            // an activity indicator, or something like that
            break
        case .purchased:
            // the user successfully purchased the IAP!
            RemoveAdsManager.removeAdsSuccess()
            SKPaymentQueue.default().finishTransaction(transaction)
        case .restored:
                // the user restored their IAP!
                IAPTestingHandler.restoreRemoveAdsSuccess()
                SKPaymentQueue.default().finishTransaction(transaction)
        case .failed:
                // The transaction failed!
                RemoveAdsManager.removeAdsFailure()
                // finish the transaction
                SKPaymentQueue.default().finishTransaction(transaction)
        case .deferred:
                // This happens when the IAP needs an external action
                // in order to proceeded, like Ask to Buy
                RemoveAdsManager.removeAdsDeferred()
                break
        }
    }
}

现在，我们添加一些可用于开始购买或恢复购买的功能：

// Call this when you want to begin a purchase
// for the productID you gave to the initializer
public func beginPurchase(){
    // If the user can make payments
    if SKPaymentQueue.canMakePayments(){
        // Create a new request
        let request = SKProductsRequest(productIdentifiers: [productID])
        // Set the request delegate to self, so we receive a response
        request.delegate = self
        // start the request
        request.start()
    }
    else{
        // Otherwise, tell the user that
        // they are not authorized to make payments,
        // due to parental controls, etc
    }
}

// Call this when you want to restore all purchases
// regardless of the productID you gave to the initializer
public func beginRestorePurchases(){
    // restore purchases, and give responses to self
    SKPaymentQueue.default().add(self)
    SKPaymentQueue.default().restoreCompletedTransactions()
}

接下来，让我们添加一个新的实用程序类来管理我们的IAP。所有这些代码都可以放在一个类中，但是将其多个可以使它更简洁。我将创建一个名为RemoveAdsManager的新类，并在其中添加一些函数

public class RemoveAdsManager{

    class func removeAds()
    class func restoreRemoveAds()

    class func areAdsRemoved() -> Bool

    class func removeAdsSuccess()
    class func restoreRemoveAdsSuccess()
    class func removeAdsDeferred()
    class func removeAdsFailure()
}

前三个函数removeAds，restoreRemoveAds和areAdsRemoved是您将被调用以执行某些操作的函数。最后四个是IAPManager将调用的那个。

让我们在前两个功能removeAds和restoreRemoveAds中添加一些代码：

// Call this when the user wants
// to remove ads, like when they
// press a "remove ads" button
class func removeAds(){
    // Before starting the purchase, you could tell the
    // user that their purchase is happening, maybe with
    // an activity indicator

    let iap = IAPManager(productID: IAPManager.removeAdsID)
    iap.beginPurchase()
}

// Call this when the user wants
// to restore their IAP purchases,
// like when they press a "restore
// purchases" button.
class func restoreRemoveAds(){
    // Before starting the purchase, you could tell the
    // user that the restore action is happening, maybe with
    // an activity indicator

    let iap = IAPManager(productID: IAPManager.removeAdsID)
    iap.beginRestorePurchases()
}

最后，让我们在最后五个函数中添加一些代码。

// Call this to check whether or not
// ads are removed. You can use the
// result of this to hide or show
// ads
class func areAdsRemoved() -> Bool{
    // This is the code that is run to check
    // if the user has the IAP.

    return UserDefaults.standard.bool(forKey: "RemoveAdsPurchased")
}

// This will be called by IAPManager
// when the user sucessfully purchases
// the IAP
class func removeAdsSuccess(){
    // This is the code that is run to actually
    // give the IAP to the user!
    //
    // I'm using UserDefaults in this example,
    // but you may want to use Keychain,
    // or some other method, as UserDefaults
    // can be modified by users using their
    // computer, if they know how to, more
    // easily than Keychain

    UserDefaults.standard.set(true, forKey: "RemoveAdsPurchased")
    UserDefaults.standard.synchronize()
}

// This will be called by IAPManager
// when the user sucessfully restores
//  their purchases
class func restoreRemoveAdsSuccess(){
    // Give the user their IAP back! Likely all you'll need to
    // do is call the same function you call when a user
    // sucessfully completes their purchase. In this case, removeAdsSuccess()

    removeAdsSuccess()
}

// This will be called by IAPManager
// when the IAP failed
class func removeAdsFailure(){
    // Send the user a message explaining that the IAP
    // failed for some reason, and to try again later
}

// This will be called by IAPManager
// when the IAP gets deferred.
class func removeAdsDeferred(){
    // Send the user a message explaining that the IAP
    // was deferred, and pending an external action, like
    // Ask to Buy.
}

将它们放在一起，我们得到的是这样的：

import Foundation
import StoreKit

public class RemoveAdsManager{

    // Call this when the user wants
    // to remove ads, like when they
    // press a "remove ads" button
    class func removeAds(){
        // Before starting the purchase, you could tell the
        // user that their purchase is happening, maybe with
        // an activity indicator

        let iap = IAPManager(productID: IAPManager.removeAdsID)
        iap.beginPurchase()
    }

    // Call this when the user wants
    // to restore their IAP purchases,
    // like when they press a "restore
    // purchases" button.
    class func restoreRemoveAds(){
        // Before starting the purchase, you could tell the
        // user that the restore action is happening, maybe with
        // an activity indicator

        let iap = IAPManager(productID: IAPManager.removeAdsID)
        iap.beginRestorePurchases()
    }

    // Call this to check whether or not
    // ads are removed. You can use the
    // result of this to hide or show
    // ads
    class func areAdsRemoved() -> Bool{
        // This is the code that is run to check
        // if the user has the IAP.

        return UserDefaults.standard.bool(forKey: "RemoveAdsPurchased")
    }

    // This will be called by IAPManager
    // when the user sucessfully purchases
    // the IAP
    class func removeAdsSuccess(){
        // This is the code that is run to actually
        // give the IAP to the user!
        //
        // I'm using UserDefaults in this example,
        // but you may want to use Keychain,
        // or some other method, as UserDefaults
        // can be modified by users using their
        // computer, if they know how to, more
        // easily than Keychain

        UserDefaults.standard.set(true, forKey: "RemoveAdsPurchased")
        UserDefaults.standard.synchronize()
    }

    // This will be called by IAPManager
    // when the user sucessfully restores
    //  their purchases
    class func restoreRemoveAdsSuccess(){
        // Give the user their IAP back! Likely all you'll need to
        // do is call the same function you call when a user
        // sucessfully completes their purchase. In this case, removeAdsSuccess()
        removeAdsSuccess()
    }

    // This will be called by IAPManager
    // when the IAP failed
    class func removeAdsFailure(){
        // Send the user a message explaining that the IAP
        // failed for some reason, and to try again later
    }

    // This will be called by IAPManager
    // when the IAP gets deferred.
    class func removeAdsDeferred(){
        // Send the user a message explaining that the IAP
        // was deferred, and pending an external action, like
        // Ask to Buy.
    }

}

public class IAPManager: NSObject, SKProductsRequestDelegate, SKPaymentTransactionObserver{

    // This should the ID of the in-app-purchase you made on AppStore Connect.
    // if you have multiple IAPs, you'll need to store their identifiers in
    // other variables, too (or, preferably in an enum).
    static let removeAdsID = "com.skiplit.removeAds"

    // This is the initializer for your IAPManager class
    //
    // An alternative, and more scaleable way of doing this
    // is to also accept a callback in the initializer, and call
    // that callback in places like the paymentQueue function, and
    // in all functions in this class, in place of calls to functions
    // in RemoveAdsManager.
    let productID: String
    init(productID: String){
        self.productID = productID
    }

    // Call this when you want to begin a purchase
    // for the productID you gave to the initializer
    public func beginPurchase(){
        // If the user can make payments
        if SKPaymentQueue.canMakePayments(){
            // Create a new request
            let request = SKProductsRequest(productIdentifiers: [productID])
            request.delegate = self
            request.start()
        }
        else{
            // Otherwise, tell the user that
            // they are not authorized to make payments,
            // due to parental controls, etc
        }
    }

    // Call this when you want to restore all purchases
    // regardless of the productID you gave to the initializer
    public func beginRestorePurchases(){
        SKPaymentQueue.default().add(self)
        SKPaymentQueue.default().restoreCompletedTransactions()
    }

    // This is called when a SKProductsRequest receives a response
    public func productsRequest(_ request: SKProductsRequest, didReceive response: SKProductsResponse){
        // Let's try to get the first product from the response
        // to the request
        if let product = response.products.first{
            // We were able to get the product! Make a new payment
            // using this product
            let payment = SKPayment(product: product)

            // add the new payment to the queue
            SKPaymentQueue.default().add(self)
            SKPaymentQueue.default().add(payment)
        }
        else{
            // Something went wrong! It is likely that either
            // the user doesn't have internet connection, or
            // your product ID is wrong!
            //
            // Tell the user in requestFailed() by sending an alert,
            // or something of the sort

            RemoveAdsManager.removeAdsFailure()
        }
    }

    // This is called when the user restores their IAP sucessfully
    private func paymentQueueRestoreCompletedTransactionsFinished(_ queue: SKPaymentQueue){
        // For every transaction in the transaction queue...
        for transaction in queue.transactions{
            // If that transaction was restored
            if transaction.transactionState == .restored{
                // get the producted ID from the transaction
                let productID = transaction.payment.productIdentifier

                // In this case, we have only one IAP, so we don't need to check
                // what IAP it is. However, this is useful if you have multiple IAPs!
                // You'll need to figure out which one was restored
                if(productID.lowercased() == IAPManager.removeAdsID.lowercased()){
                    // Restore the user's purchases
                    RemoveAdsManager.restoreRemoveAdsSuccess()
                }

                // finish the payment
                SKPaymentQueue.default().finishTransaction(transaction)
            }
        }
    }

    // This is called when the state of the IAP changes -- from purchasing to purchased, for example.
    // This is where the magic happens :)
    public func paymentQueue(_ queue: SKPaymentQueue, updatedTransactions transactions: [SKPaymentTransaction]){
        for transaction in transactions{
            // get the producted ID from the transaction
            let productID = transaction.payment.productIdentifier

            // In this case, we have only one IAP, so we don't need to check
            // what IAP it is.
            // However, if you have multiple IAPs, you'll need to use productID
            // to check what functions you should run here!

            switch transaction.transactionState{
            case .purchasing:
                // if the user is currently purchasing the IAP,
                // we don't need to do anything.
                //
                // You could use this to show the user
                // an activity indicator, or something like that
                break
            case .purchased:
                // the user sucessfully purchased the IAP!
                RemoveAdsManager.removeAdsSuccess()
                SKPaymentQueue.default().finishTransaction(transaction)
            case .restored:
                // the user restored their IAP!
                RemoveAdsManager.restoreRemoveAdsSuccess()
                SKPaymentQueue.default().finishTransaction(transaction)
            case .failed:
                // The transaction failed!
                RemoveAdsManager.removeAdsFailure()
                // finish the transaction
                SKPaymentQueue.default().finishTransaction(transaction)
            case .deferred:
                // This happens when the IAP needs an external action
                // in order to proceeded, like Ask to Buy
                RemoveAdsManager.removeAdsDeferred()
                break
            }
        }
    }

}

最后，您需要为用户添加某种方式来开始购买并调用RemoveAdsManager.removeAds()，并开始还原并调用RemoveAdsManager.restoreRemoveAds()，就像某个地方的按钮一样！请记住，根据App Store指南，您确实需要提供一个按钮以在某处恢复购买。

提交审核

最后要做的是将您的IAP提交给App Store Connect进行审核！有关执行此操作的详细说明，您可以按照my Objective-C answer的最后一部分，在提交审核标题下。

Answer 5

添加应用内购买和订阅是一个非常复杂的过程。您可以考虑为此使用第三方服务。请查看Qonversion.io和我们的iOS SDK。它提供了简单的方法来进行购买/还原购买，显示产品以及检查应用内订阅状态。检查quick start guide。安装SDK后，进行应用内购买非常简单：

    Qonversion.purchase("main") { (permissions, error, isCancelled) in
  
    if let premium: Qonversion.Permission = permissions["premium"], premium.isActive {
    // Flow for success state
  }
}

公开-我是Qonversion的共同创始人。

如何在iOS应用程序中添加应用内购买？

5 个答案:

快速答案

设置

编码

提交审核