＆＃39; touchIDLockout＆＃39;在iOS 11.0中已弃用：使用LAErrorBiometryLockout

Question

我正在使用iOS 11应用程序的触摸ID，我正在使用LA来确定身份验证是否失败，用户取消和使用返回如下：

import Foundation
import LocalAuthentication

class TouchIDAuth {

    let context = LAContext()

    func canEvaluatePolicy() -> Bool {
        return context.canEvaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, error: nil)
    }

    func authenticateUser(completion: @escaping (NSNumber?) -> Void) {

        guard canEvaluatePolicy() else {
            completion(0)
            return
        }

        context.evaluatePolicy(.deviceOwnerAuthenticationWithBiometrics,
                               localizedReason: "Logging in with Touch ID") { (success, evaluateError) in
                                if success {
                                    DispatchQueue.main.async {
                                        completion(nil)
                                    }
                                } else {

                                    let response: NSNumber

                                    switch evaluateError {
                                    case LAError.authenticationFailed?:
                                        response = 2
                                    case LAError.userCancel?:
                                        response = 3
                                    case LAError.userFallback?:
                                        response = 4
                                    default:
                                        response = 1
                                    }

                                    completion(response)

                                }
        }
    }

}

上面的代码有效，但我收到了这些警告：

＆＃39; touchIDLockout＆＃39;在iOS 11.0中已弃用：使用LAErrorBiometryLockout

＆＃39; touchIDNotEnrolled＆＃39;在iOS 11.0中已弃用：使用LAErrorBiometryNotEnrolled

＆＃39; touchIDNotAvailable＆＃39;在iOS 11.0中已弃用：使用LAErrorBiometryNotAvailable

现在我知道这些来自LAError，我的问题是，如何更新我的switch case语句以检查身份验证失败，用户取消和使用fallback？