authentication.dart

import 'package:flutter/services.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:local_auth/local_auth.dart';
import 'package:<package>/components/CustomToast.dart';
import 'package:<package>/utils/Consts.dart';

class Authentication {
  static LocalAuthentication _localAuthentication = LocalAuthentication();

  static Future authenticate(context) async {
    try {
      return await _localAuthentication.authenticateWithBiometrics(
        localizedReason: Consts.allowLoginWithTouchId,
        useErrorDialogs: true,
        stickyAuth: true,
      );
    } on PlatformException catch(_) {
      FlutterToast(context).showToast(
        child: CustomToast(text: Consts.biometricNotSupported),
        gravity: ToastGravity.BOTTOM,
        toastDuration: Duration(seconds: 2),
      );
      return false;
    }
  }
}