Question

我正在开发非耗材的IAP功能（删除广告）。我为所有操作创建了一个帮手，一切正常。

当用户购买/恢复购买时，我将其设置为：

let save = UserDefaults.standard
save.set(true, forKey: "Purchase")
save.synchronize()

只要用户永远不会删除该应用，这就可以正常工作。

我想知道...... 有没有办法知道用户（删除并重新安装应用程序后）是否已经购买？所以更改按钮的标题来自＆＃34;购买＆＃34;到＆＃34;恢复＆＃34;？

Answer 1

如果您提供登录系统，您将很容易知道，否则

您不应该为付款设置购买和恢复按钮，也不能存储此键值设备密钥链并在首次设置中读取它们，但您应该从 ios 10.3 了解如果您删除了相应的密钥链项目将被删除

注意：Apple 声明所有拥有IAP的应用都应该提供还原支付功能，如果有解决方法应用将被 Apple

拒绝

Answer 2

对于每个应用，Apple都要求您包含“还原购买”按钮。这正是您面临的问题。它将为以前购买的每个IAP重新创建session_start(); include("include/session.php"); if(!$session->logged_in){ header("Location: Login.php"); }，并为当前在App Store登录的iCloud帐户恢复“已恢复”状态，并将其放在function startSession() { global $database; //The database connection session_start(); //Tell PHP to start the session /* Determine if user is logged in */ $this->logged_in = $this->checkLogin(); /** * Set guest value to users not logged in, and update * active guests table accordingly. */ if(!$this->logged_in) { $this->username = $_SESSION['username'] = GUEST_NAME; $this->userlevel = GUEST_LEVEL; $database->addActiveGuest($_SERVER['REMOTE_ADDR'], $this->time); } else { /* Update users last active timestamp */ $database->addActiveUser($this->username, $this->time); } /* Remove inactive visitors from database */ $database->removeInactiveUsers(); $database->removeInactiveGuests(); /* Set referrer page */ if(isset($_SESSION['url'])) { $this->referrer = $_SESSION['url']; } else { $this->referrer = "/"; } /* Set current url */ $this->url = $_SESSION['url'] = $_SERVER['PHP_SELF']; }上。 Read more...

Answer 3

当用户在您的应用中进行互动时，也许在您的代码中进行收据验证是有意义的。（Apple文档：https://developer.apple.com/library/content/releasenotes/General/ValidateAppStoreReceipt/Introduction.html）

看看这个小例子：

初始化您的产品请求：

if SKPaymentQueue.canMakePayments() {
        print("starting IAPS")
        let productIdentifiers = Set(["YOUR_IAPP_IDENTIFIER#1", "YOUR_IAPP_IDENTIFIER#1"])
        let request = SKProductsRequest(productIdentifiers: productIdentifiers as Set<String>)
        request.delegate = self
        request.start()

} else {
        print("please enable IAPS")
}

在您的应用中设置您的产品并进行收据验证

func productsRequest(_ request: SKProductsRequest, didReceive response: SKProductsResponse) {
    print("product request")
    let myProduct = response.products

    for product in myProduct {
        if product.productIdentifier == "YOUR_IAPP_IDENTIFIER#1" {
            self.productYear = product
        } else if product.productIdentifier == "YOUR_IAPP_IDENTIFIER#2" {
            self.productMonth = product
        }

        print("product added")
        print(product.productIdentifier)
        print(product.localizedTitle)
        print(product.localizedDescription)
        print(product.price)

        self.receiptValidation()
 }

验证示例

  func receiptValidation() {
            self.logger.log.debug("In receipt validation")
            if let appStoreReceiptURL = Bundle.main.appStoreReceiptURL,
                FileManager.default.fileExists(atPath: appStoreReceiptURL.path) {

                do {
                    let receiptData = try Data(contentsOf: appStoreReceiptURL, options: .alwaysMapped)

                    let receiptString = receiptData.base64EncodedString(options: [])
                    let dict = ["receipt-data" : receiptString, "password" : "YOUR_PASSWORD"] as [String : Any]
                    // Getting the receipt data from the JSON file and other logic
                    // ...
                    // ...
          }
       }
    }

如果您需要进一步澄清，请告诉我。此外，您只需使用PaymentQueue（Apple Doc：https://developer.apple.com/documentation/storekit/skpaymentqueue）

即可恢复它

Swift In App Purchase Non Consumable

3 个答案: