苹果开发者后台配置的内购产品在App中无法正常显示问题求助

问题根因及修复方案 #

1. 代码问题修复 #

你当前的StoreManager存在两个核心错误：

• 未声明遵守SKPaymentTransactionObserver协议，也没有将自身注册为支付队列的观察者，交易相关回调无法正常触发
• getProducts方法中创建的SKProductsRequest是局部变量，方法执行结束后就会被释放，会导致产品请求的代理回调无法接收

修正后的StoreManager代码如下：

class StoreManager: NSObject, ObservableObject, SKProductsRequestDelegate, SKPaymentTransactionObserver {
    
    @Published var myProducts = [SKProduct]()
    var request: SKProductsRequest!
    
    @Published var transactionState: SKPaymentTransactionState?
    
    override init() {
        super.init()
        // 注册为支付队列观察者
        SKPaymentQueue.default().add(self)
    }
    
    deinit {
        // 移除观察者避免内存泄漏
        SKPaymentQueue.default().remove(self)
    }
    
    func purchaseProduct(product: SKProduct) {
        if SKPaymentQueue.canMakePayments() {
            let payment = SKPayment(product: product)
            SKPaymentQueue.default().add(payment)
        } else {
            print("User can't make payment.")
        }
    }
    
    
    func paymentQueue(_ queue: SKPaymentQueue, updatedTransactions transactions: [SKPaymentTransaction]) {
        for transaction in transactions {
            switch transaction.transactionState {
            case .purchasing:
                transactionState = .purchasing
            case .purchased:
                UserDefaults.standard.setValue(true, forKey: transaction.payment.productIdentifier)
                queue.finishTransaction(transaction)
                print("payment success")
                transactionState = .purchased
            case .restored:
                UserDefaults.standard.setValue(true, forKey: transaction.payment.productIdentifier)
                queue.finishTransaction(transaction)
                transactionState = .restored
            case .failed, .deferred:
                queue.finishTransaction(transaction)
                transactionState = .failed
                print("payment failed")
            default:
                queue.finishTransaction(transaction)
                
            }
        }
    }
    
    func getProducts(productIDs: [String]) {
        print("Start requesting products ...")
        // 赋值给类属性避免被提前释放
        request = SKProductsRequest(productIdentifiers: Set(productIDs))
        request.delegate = self
        request.start()
    }
    
    
    func productsRequest(_ request: SKProductsRequest, didReceive response: SKProductsResponse) {
        print("Did receive response")
        
        if !response.products.isEmpty {
            DispatchQueue.main.async {
                self.myProducts = response.products
            }
        }
        
        for invalidIdentifier in response.invalidProductIdentifiers {
            print("Invalid identifiers found: \(invalidIdentifier)")
        }
    }
    
    func request(_ request: SKRequest, didFailWithError error: Error) {
        print("Request did fail: \(error)")
    }
    
}

2. 项目配置检查 #

完成代码修改后，依次检查以下配置项，遗漏任意一项都会导致内购产品无法加载：

• 打开Xcode项目的Signing & Capabilities标签页，确认已经添加In-App Purchase能力
• 确认App Store Connect中创建的内购产品ID和代码中productIDs数组里的字符串完全一致（大小写敏感），且产品状态为「准备提交」及以上，不能是草稿状态
• 若使用模拟器测试，需要添加本地StoreKit配置文件：
  1. Xcode新建文件，选择StoreKit Configuration File，手动添加和App Store Connect一致的内购产品
  2. 打开项目Scheme，选择Run-Options，将StoreKit Configuration设置为你刚创建的配置文件
• 建议使用iOS 15及以上版本的模拟器测试，更低版本的模拟器对StoreKit支持不完善，优先使用真机测试更稳定

3. 调试技巧 #

运行项目后查看Xcode控制台输出：

• 如果打印Invalid identifiers found: xxx，说明产品ID不匹配或者内购产品配置错误
• 如果打印Request did fail: xxx，根据具体错误信息排查网络或者权限问题

内容的提问来源于stack exchange，提问作者George Sepetadelis