Authenticate with Biometrics not defined Flutter - flutter

Question

I'm trying to add Biometrics for IOS Devices but I keep on getting this error:
The method 'authenticateWithBiometrics' isn't defined for the type 'LocalAuthentication'.
This is the code for my api file:
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_local_auth_invisible/auth_strings.dart';
import 'package:local_auth/local_auth.dart';
class LocalAuthApi {
static final _auth = LocalAuthentication();
static Future<bool> hasBiometrics() async {
try {
return await _auth.canCheckBiometrics;
} on PlatformException catch (e) {
return false;
}
}
static Future<bool> authenticate() async {
final isAvailable = await hasBiometrics();
if (!isAvailable) return false;
try {
return await _auth.authenticateWithBiometrics(
androidAuthStrings: const AndroidAuthMessages(
signInTitle: 'Face ID Required',
),
localizedReason: 'Scan Face to Authenticate',
useErrorDialogs: false,
stickyAuth: false,
);
} on PlatformException catch (e) {
return false;
}
}
}

Answer 1

The documentation of package: https://pub.dev/packages/local_auth/example
Just change _auth.authenticateWithBiometrics to _auth.authenticate it must be work. Then your code:
static Future<bool> authenticate() async {
final isAvailable = await hasBiometrics();
if (!isAvailable) return false;
try {
return await _auth.authenticate(
androidAuthStrings: const AndroidAuthMessages(
signInTitle: 'Face ID Required',
),
localizedReason: 'Scan Face to Authenticate',
options: const AuthenticationOptions(
useErrorDialogs: true,
stickyAuth: true,
),
);
} on PlatformException catch (e) {
return false;
}
}