我的恢复购买代码是否正确?如果正确,我应该在哪里执行更改用户默认设置的操作?
Is my restore purchases code correct and if so where should I put the action to change user defaults?
我正在 Swift 中编写我的第一个 iOS 应用程序,并且在应用程序内购买功能方面遇到了一些问题。我想我已经获得了实际的购买功能,但我不确定恢复功能。我只是提供一种产品,它是该应用程序的 'pro' 版本。这存储在“用户默认值”位置并解锁额外功能。我的恢复功能让我感到困惑,有人可以看看它并告诉我应该在哪里设置我的用户默认值吗?它应该在 paymentQueueRestoreCompletedTransactionsFinished 函数中还是在 paymentQueue 函数中?
import UIKit
import StoreKit
class StoreController: UIViewController, SKProductsRequestDelegate,
SKPaymentTransactionObserver {
// Properties
var defaults = UserDefaults.standard
var list = [SKProduct]()
var p = SKProduct()
// Methods
override func viewDidLoad() {
super.viewDidLoad()
// Get list of products for the store
localTitle.isEnabled = false
localDescription.isEnabled = false
price.isEnabled = false
buy.isEnabled = false
restore.isEnabled = false
getProducts()
}
// Outlets
@IBOutlet weak var localTitle: UILabel!
@IBOutlet weak var localDescription: UILabel!
@IBOutlet weak var price: UILabel!
@IBOutlet weak var buy: UIButton!
@IBOutlet weak var restore: UIButton!
// Actions
@IBAction func buy(_ sender: UIButton) {
print("buy pressed")
for product in list {
let prodID = product.productIdentifier
if(prodID == "com.squidgylabs.pro") {
p = product
buyProduct()
}
}
}
@IBAction func restore(_ sender: UIButton) {
print("restore pressed")
SKPaymentQueue.default().add(self)
SKPaymentQueue.default().restoreCompletedTransactions()
}
// Methods
func getProducts() {
print("starting getproducts function")
if(SKPaymentQueue.canMakePayments()) {
print("IAP is enabled, loading")
let productID: NSSet = NSSet(objects: "com.squidgylabs.pro")
let request: SKProductsRequest = SKProductsRequest(productIdentifiers: productID as! Set<String>)
request.delegate = self
request.start()
} else {
print("please enable IAPS")
}
}
func productsRequest(_ request: SKProductsRequest, didReceive response: SKProductsResponse) {
print("starting productsrequest")
let myProduct = response.products
for product in myProduct {
print("product added")
list.append(product)
}
localTitle.isEnabled = true
localDescription.isEnabled = true
restore.isEnabled = true
buy.isEnabled = true
price.isEnabled = true
// Update labels
localTitle.text = list[0].localizedTitle
localDescription.text = list[0].localizedDescription
// Format the price and display
let formatter = NumberFormatter()
formatter.locale = Locale.current
formatter.numberStyle = .currency
if let formattedPrice = formatter.string(from: list[0].price){
price.text = formattedPrice
}
}
func paymentQueueRestoreCompletedTransactionsFinished(_ queue: SKPaymentQueue) {
print("starting paymentQueueResoreCompletedTransactionsFnished")
for transaction in queue.transactions {
let t: SKPaymentTransaction = transaction
let prodID = t.payment.productIdentifier as String
switch prodID {
case "com.squidgylabs.pro":
print("case is correct product ID in payment...finished")
default:
print("IAP not found")
}
}
}
func buyProduct() {
print("buy " + p.productIdentifier)
let pay = SKPayment(product: p)
SKPaymentQueue.default().add(self)
SKPaymentQueue.default().add(pay as SKPayment)
}
func paymentQueue(_ queue: SKPaymentQueue, updatedTransactions transactions: [SKPaymentTransaction]) {
print("entering func paymentQueue")
for transaction: AnyObject in transactions {
let trans = transaction as! SKPaymentTransaction
switch trans.transactionState {
case .purchased:
print("buy ok, unlock IAP HERE")
print(p.productIdentifier)
let prodID = p.productIdentifier
switch prodID {
case "com.squidgylabs.pro":
print("setting pro in defaults...")
defaults.set(true, forKey: "pro")
default:
print("IAP not found")
}
queue.finishTransaction(trans)
break
case .failed:
print("buy error")
queue.finishTransaction(trans)
break
case .restored:
print("case .restored in paymentQ")
SKPaymentQueue.default().finishTransaction(transaction as! SKPaymentTransaction)
queue.finishTransaction(trans)
break
default:
print("Default")
break
}
}
}
}
可以这样操作
public func paymentQueue(_ queue: SKPaymentQueue, updatedTransactions transactions: [SKPaymentTransaction]) {
for transaction in transactions {
switch transaction.transactionState {
case .purchased:
completePurchaseForTransaction(transaction)
case .restored:
completePurchaseForTransaction(transaction)
default:
break
}
}
private func completePurchaseForTransaction(_ transaction: SKPaymentTransaction) {
let productIdentifier = transaction.payment.productIdentifier
// Update UserDefaults here
SKPaymentQueue.default().finishTransaction(transaction)
}
您可以考虑使用其他 class 来访问 StoreKit 而不是 UIViewController。因为
Your application should always expect to be notified of completed
transactions.
https://developer.apple.com/documentation/storekit/skpaymentqueue/1506042-add
View 控制器来来去去。如果您不删除作为观察者添加到 SKPaymentQueue 的对象,它甚至可能使应用程序崩溃。
我在 GitHub 上有一个简单的、文档齐全的 StoreKit 库,你可以查看它来了解这个想法 -- https://github.com/suvov/VSStoreKit
我正在 Swift 中编写我的第一个 iOS 应用程序,并且在应用程序内购买功能方面遇到了一些问题。我想我已经获得了实际的购买功能,但我不确定恢复功能。我只是提供一种产品,它是该应用程序的 'pro' 版本。这存储在“用户默认值”位置并解锁额外功能。我的恢复功能让我感到困惑,有人可以看看它并告诉我应该在哪里设置我的用户默认值吗?它应该在 paymentQueueRestoreCompletedTransactionsFinished 函数中还是在 paymentQueue 函数中?
import UIKit
import StoreKit
class StoreController: UIViewController, SKProductsRequestDelegate,
SKPaymentTransactionObserver {
// Properties
var defaults = UserDefaults.standard
var list = [SKProduct]()
var p = SKProduct()
// Methods
override func viewDidLoad() {
super.viewDidLoad()
// Get list of products for the store
localTitle.isEnabled = false
localDescription.isEnabled = false
price.isEnabled = false
buy.isEnabled = false
restore.isEnabled = false
getProducts()
}
// Outlets
@IBOutlet weak var localTitle: UILabel!
@IBOutlet weak var localDescription: UILabel!
@IBOutlet weak var price: UILabel!
@IBOutlet weak var buy: UIButton!
@IBOutlet weak var restore: UIButton!
// Actions
@IBAction func buy(_ sender: UIButton) {
print("buy pressed")
for product in list {
let prodID = product.productIdentifier
if(prodID == "com.squidgylabs.pro") {
p = product
buyProduct()
}
}
}
@IBAction func restore(_ sender: UIButton) {
print("restore pressed")
SKPaymentQueue.default().add(self)
SKPaymentQueue.default().restoreCompletedTransactions()
}
// Methods
func getProducts() {
print("starting getproducts function")
if(SKPaymentQueue.canMakePayments()) {
print("IAP is enabled, loading")
let productID: NSSet = NSSet(objects: "com.squidgylabs.pro")
let request: SKProductsRequest = SKProductsRequest(productIdentifiers: productID as! Set<String>)
request.delegate = self
request.start()
} else {
print("please enable IAPS")
}
}
func productsRequest(_ request: SKProductsRequest, didReceive response: SKProductsResponse) {
print("starting productsrequest")
let myProduct = response.products
for product in myProduct {
print("product added")
list.append(product)
}
localTitle.isEnabled = true
localDescription.isEnabled = true
restore.isEnabled = true
buy.isEnabled = true
price.isEnabled = true
// Update labels
localTitle.text = list[0].localizedTitle
localDescription.text = list[0].localizedDescription
// Format the price and display
let formatter = NumberFormatter()
formatter.locale = Locale.current
formatter.numberStyle = .currency
if let formattedPrice = formatter.string(from: list[0].price){
price.text = formattedPrice
}
}
func paymentQueueRestoreCompletedTransactionsFinished(_ queue: SKPaymentQueue) {
print("starting paymentQueueResoreCompletedTransactionsFnished")
for transaction in queue.transactions {
let t: SKPaymentTransaction = transaction
let prodID = t.payment.productIdentifier as String
switch prodID {
case "com.squidgylabs.pro":
print("case is correct product ID in payment...finished")
default:
print("IAP not found")
}
}
}
func buyProduct() {
print("buy " + p.productIdentifier)
let pay = SKPayment(product: p)
SKPaymentQueue.default().add(self)
SKPaymentQueue.default().add(pay as SKPayment)
}
func paymentQueue(_ queue: SKPaymentQueue, updatedTransactions transactions: [SKPaymentTransaction]) {
print("entering func paymentQueue")
for transaction: AnyObject in transactions {
let trans = transaction as! SKPaymentTransaction
switch trans.transactionState {
case .purchased:
print("buy ok, unlock IAP HERE")
print(p.productIdentifier)
let prodID = p.productIdentifier
switch prodID {
case "com.squidgylabs.pro":
print("setting pro in defaults...")
defaults.set(true, forKey: "pro")
default:
print("IAP not found")
}
queue.finishTransaction(trans)
break
case .failed:
print("buy error")
queue.finishTransaction(trans)
break
case .restored:
print("case .restored in paymentQ")
SKPaymentQueue.default().finishTransaction(transaction as! SKPaymentTransaction)
queue.finishTransaction(trans)
break
default:
print("Default")
break
}
}
}
}
可以这样操作
public func paymentQueue(_ queue: SKPaymentQueue, updatedTransactions transactions: [SKPaymentTransaction]) {
for transaction in transactions {
switch transaction.transactionState {
case .purchased:
completePurchaseForTransaction(transaction)
case .restored:
completePurchaseForTransaction(transaction)
default:
break
}
}
private func completePurchaseForTransaction(_ transaction: SKPaymentTransaction) {
let productIdentifier = transaction.payment.productIdentifier
// Update UserDefaults here
SKPaymentQueue.default().finishTransaction(transaction)
}
您可以考虑使用其他 class 来访问 StoreKit 而不是 UIViewController。因为
Your application should always expect to be notified of completed transactions.
https://developer.apple.com/documentation/storekit/skpaymentqueue/1506042-add
View 控制器来来去去。如果您不删除作为观察者添加到 SKPaymentQueue 的对象,它甚至可能使应用程序崩溃。
我在 GitHub 上有一个简单的、文档齐全的 StoreKit 库,你可以查看它来了解这个想法 -- https://github.com/suvov/VSStoreKit