Flutter Facebook Login Error: Getter not found: 'Success'. case FacebookLoginStatus.Success - flutter

Question

I am using Flutter to make my app and I wish to do function login with Facebook and this is what I did:
import 'package:firebase_auth/firebase_auth.dart';
import 'package:flutter_login_facebook/flutter_login_facebook.dart';
abstract class AuthBase {
User get currentUser;
Stream<User> authStateChanges();
Future<User> signInWithFacebook();
Future<void> signOut();
}
class Auth implements AuthBase {
final _firebaseAuth = FirebaseAuth.instance;
#override
Stream<User> authStateChanges() => _firebaseAuth.authStateChanges();
#override
User get currentUser => _firebaseAuth.currentUser;
#override
Future<User> signInWithFacebook() async {
final fb = FacebookLogin();
final response = await fb.logIn(permissions: [
FacebookPermission.publicProfile,
FacebookPermission.email,
]);
switch (response.status) {
case FacebookLoginStatus.Success:
final accessToken = response.accessToken;
final userCredential = await _firebaseAuth.signInWithCredential(
FacebookAuthProvider.credential(accessToken.token),
);
return userCredential.user;
case FacebookLoginStatus.Cancel:
throw FirebaseAuthException(
code: 'ERROR_ABORTED_BY_USER',
message: 'Sign in aborted by user',
);
case FacebookLoginStatus.Error:
throw FirebaseAuthException(
code: 'ERROR_FACEBOOK_LOGIN_FAILED',
message: response.error.developerMessage,
);
default:
throw UnimplementedError();
}
}
#override
Future<void> signOut() async {
final facebookLogin = FacebookLogin();
await facebookLogin.logOut();
await _firebaseAuth.signOut();
}
}
And this is error I got:
Performing hot restart...
Syncing files to device AOSP on IA Emulator...
lib/services/auth.dart:68:32: Error: Getter not found: 'Success'.
case FacebookLoginStatus.Success:
^^^^^^^
lib/services/auth.dart:74:32: Error: Getter not found: 'Cancel'.
case FacebookLoginStatus.Cancel:
^^^^^^
lib/services/auth.dart:79:32: Error: Getter not found: 'Error'.
case FacebookLoginStatus.Error:
^^^^^
Restarted application in 278ms.
I tried to look at the tutorial and I see no difference in the code I wrote, it is on Udemy so I can not copy the link down here to you. Please tell me how to deal with that, thank you so much and have a good day

Answer 1

change code to
import 'package:firebase_auth/firebase_auth.dart';
import 'package:flutter_login_facebook/flutter_login_facebook.dart';
abstract class AuthBase {
User get currentUser;
Stream<User> authStateChanges();
Future<User> signInWithFacebook();
Future<void> signOut();
}
class Auth implements AuthBase {
final _firebaseAuth = FirebaseAuth.instance;
#override
Stream<User> authStateChanges() => _firebaseAuth.authStateChanges();
#override
User get currentUser => _firebaseAuth.currentUser;
#override
Future<User> signInWithFacebook() async {
final fb = FacebookLogin();
final response = await fb.logIn(permissions: [
FacebookPermission.publicProfile,
FacebookPermission.email,
]);
switch (response.status) {
case FacebookLoginStatus.success:
final accessToken = response.accessToken;
final userCredential = await _firebaseAuth.signInWithCredential(
FacebookAuthProvider.credential(accessToken.token),
);
return userCredential.user;
case FacebookLoginStatus.cancel:
throw FirebaseAuthException(
code: 'ERROR_ABORTED_BY_USER',
message: 'Sign in aborted by user',
);
case FacebookLoginStatus.error:
throw FirebaseAuthException(
code: 'ERROR_FACEBOOK_LOGIN_FAILED',
message: response.error.developerMessage,
);
default:
throw UnimplementedError();
}
}
#override
Future<void> signOut() async {
final facebookLogin = FacebookLogin();
await facebookLogin.logOut();
await _firebaseAuth.signOut();
}
}
lower case this code:
case FacebookLoginStatus.Success: to case FacebookLoginStatus.success:
case FacebookLoginStatus.Cancel: to case FacebookLoginStatus.cancel:
case FacebookLoginStatus.Error: to case FacebookLoginStatus.error:

Answer 2

Please try this snippet of code, It's working fine for me.
fbSignIn() async {
var facebookLogin = FacebookLogin();
var facebookLoginResult = await facebookLogin.logIn(['email']);
switch (facebookLoginResult.status) {
case FacebookLoginStatus.error:
print("Error");
//showToast(msg: "A Error Occured");
break;
case FacebookLoginStatus.cancelledByUser:
print("CancelledByUser");
//showToast(msg: "Login Cancelled");
break;
case FacebookLoginStatus.loggedIn:
print(facebookLoginResult.accessToken.token);
print("LoggedIn");
break;
}
}