This tag should be used for questions related to the LocalAuthentication framework provided in iOS and macOS.
Questions tagged [localauthentication]
87 questions
3
votes
1 answer
LAContext().biometryType returns .none on iPhone X
I'm facing a problem with CoreAuthentication.
I have called canEvaluatePolicy:error: as the documentation ask for but the result is always .none.
fileprivate let biometricsType: SecurityBiometrics = {
var error: NSError?
let…

Kevin Machado
- 4,141
- 3
- 29
- 54
3
votes
2 answers
Is it possible to authenticate using only the passcode, even device has touch id capability in ios, swift
I want to authenticate only using the PassCode even device has the Touch ID Feature. I'm using .deviceOwnerAuthentication evaluate policy method. when I use this,
If user has enrolled touch id --> alway ask for touch id
If use hasn't enrolled…

caldera.sac
- 4,918
- 7
- 37
- 69
2
votes
0 answers
"expo-local-authentication" Authentication unsuccessful "missing_usage_description"
Here's a copy of my app.json requesting permission and providing description
enter image description here
and when run I face this message.
enter image description here
await authenticateAsync({
disableDeviceFallback: true,
…

Mahmoud_Sabry
- 21
- 1
2
votes
0 answers
Unable to authenticate using Flutter local_auth plugin
I am using the Flutter local_auth plugin, biometrics works fine but Pincode/pattern doesn't provide authentication. I found if I remove my fingerprints from my mobile then Pincode and pattern authentication works but I need to input 2 times. The…

Ajinkya Taranekar
- 330
- 1
- 13
2
votes
1 answer
how to close the application on clicking cancel in local auth and also when maximum tries exceeds in flutter
I'm new in flutter. I wanted to create an application with local biometrics I have used local auth and i need to have help with
close the application on the click of cancel button in local_auth,
close the application when maximum tries are…

james
- 155
- 2
- 12
2
votes
2 answers
PlatformException(no_fragment_activity, local_auth plugin requires activity to be a FragmentActivity., null) in flutter
I am trying add Figureprint authentication using local_auth package of flutter i used same example given that package here it is.
And i am getting this error
I/flutter (27676): PlatformException(no_fragment_activity, local_auth plugin requires…

ReX
- 121
- 11
2
votes
2 answers
Unable to get error code for LAErrorAuthenticationFailed in IOS FaceID
Im trying to create an app with Face id feature.
But when I try to handle the error codes, i can only catch the LAErrorUserCancel. I was unable to catch other error codes such as LAErrorAuthenticationFailed.
[context…

Robert Enriquez
- 21
- 1
2
votes
1 answer
LocalAuthentication issue
I have an app where the user can authenticate either with TouchID / FaceID (if Available, enrolled and enabled) or with passcode. All those options can be set in the settings of the app and are stored in UserDefaults. Once the app loads, it checks…

Dani
- 3,427
- 3
- 28
- 54
2
votes
1 answer
Touch ID Local Authentication produces Thread 12: EXC error
Currently, I have the following code in place.
if localAuthenticationContext.canEvaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, error: &authError) {
…

Arnav GUPTA
- 295
- 1
- 2
- 17
2
votes
1 answer
ios Face Id LocalAuthentication , localizedReason not working
[laContecxt evaluatePolicy:LAPolicyDeviceOwnerAuthentication
localizedReason:@"My Reason to be displayed on face id prompt"
reply:^(BOOL success, NSError *error) {
if (success) {
…

deepak patil
- 21
- 2
2
votes
0 answers
iOS - Asks Passcode/TouchID after user accept the call for Video Call?
I am working with a project requires VOIP and video call. Right now, I implemented the PushKit for initialising CallKit. I would like to ask the user for Passcode/TouchID (because after the user accepts the call, it will navigate application to…

Le Trong Triet
- 101
- 1
- 10
1
vote
1 answer
How to detect Local Authentication permission state haven't triggered in Swift?
I am implementing biometric login into my iOS app in Swift, and I have use this API :
var permissions = context.canEvaluatePolicy(.deviceOwnerAuthenticationWithBiometrics,error: &failureReason)
to check whether biometric is supported. It is working…

WCY
- 23
- 4
1
vote
0 answers
Flutter local_auth , I want to get fingerprint signature so I can encrypt it with password
Is there a way to obtain a unique fingerprint signature of the user using the local_auth package (Flutter/Dart) so that I can encrypt it along with a password and store it? (Reference: https://pub.dev/packages/local_auth/example)

kpatel23
- 23
- 6
1
vote
1 answer
How do I use local auth and bar code scanner in the same flutter project?
I building a flutter app that scans bar codes and also uses biometric auth in it. The problem is for package local_auth
MainActivity.kt should be like
import io.flutter.embedding.android.FlutterFragmentActivity;
public class MainActivity extends…

MOBILES RECOVERY
- 25
- 1
- 6
1
vote
0 answers
Flutter decide between fingerprint and pattern
I have to add local authentication to the flutter app. Found great solutions local_auth which is easy to integrate.
authenticated = await auth.authenticate(
localizedReason: 'Let OS determine authentication method',
…

Tologon
- 83
- 1
- 5