I have the following implementation of LocalAuthentication as described in many places.
context.evaluatePolicy(LAPolicy.DeviceOwnerAuthenticationWithBiometrics, localizedReason: "Logging in with Touch ID", reply: { (success : Bool, error : NSError? ) -> Void in
dispatch_async(dispatch_get_main_queue(), {
if success {
let alert = UIAlertController(title: "Success", message: "", cancelButtonTitle: "Great!")
self.presentViewController(alert, animated: true, completion: nil)
}
if let error = error {
var message :String
switch(error.code) {
case LAError..AuthenticationFailed:
message = "There was a problem verifying your identity."
case LAError..UserCancel:
message = "You pressed cancel."
case LAError..UserFallback:
message = "You pressed password."
default:
message = "Touch ID may not be configured"
}
let alert = UIAlertController(title: "Error", message: message, cancelButtonTitle: "Darn!")
self.presentViewController(alert, animated: true, completion: nil)
}
})
})
But after I've successfully authenticated with my fingerprint, then evaluatePolicy(, localizedReason:, reply:) returns success without requesting for any fingerprint. I'm actually enabling or disabling TouchID with a UISwitch, so after disabling and re enabling, I'd like to re-authenticate and re enter my fingerprint.
Why is it caching the authentication?
Thanks