问如何在设置页面中禁用我的应用程序的面部ID检查

EN

let context = LAContext()
var error: NSError?

if context.canEvaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, error: &error) {
    let reason = "Enable FaceID!"

    context.evaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, localizedReason: reason) {
        [unowned self] (success, authenticationError) in

        DispatchQueue.main.async {
            if success {
                self.unlockSecretMessage()
            } else {
                // error
            }
        }
    }
} else {
    // no biometry
}