Question

我正在通过我的Flutter应用进行Facebook身份验证。这是可行的，但是，登录对话框仅显示第一次。

注销后，我再也没有得到登录提示。.再次看到登录对话框的唯一方法是FB并注销

请让我知道我可以从flutter应用程序中注销Facebook并显示登录对话框。

Google身份验证工作很好。我看到登录对话框

注销代码

Future<void> signOut() async {
    await googleSignIn.signOut();
    await facebookLogin.logOut();
    await FirebaseAuth.instance.signOut();
    await _firebaseAuth.signOut();
    randstadUserProfile = null;
    firebaseUser = null;
  }

Answer 1

import 'package:firebase_auth/firebase_auth.dart';
import 'package:flutter/material.dart';
import 'package:flutter_facebook_login/flutter_facebook_login.dart';
import 'package:google_sign_in/google_sign_in.dart';
import 'package:pixeltech/Body/Onboard/screens/entry_screen.dart';

class NotificationPage extends StatefulWidget {
  @override
  _NotificationPageState createState() => _NotificationPageState();
}

class _NotificationPageState extends State<NotificationPage> {



  final GoogleSignIn googleSignIn = GoogleSignIn();
  final FacebookLogin facebookLogIn = FacebookLogin();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child:FlatButton(onPressed: (){
          signOutGoogle();
          logoutFacebook();
        }, child: Icon(Icons.exit_to_app))
      )
    );
  }



  ///google signout
  void signOutGoogle() async{
    await googleSignIn.signOut();
    Navigator.of(context).push(MaterialPageRoute(builder: (context) {return EntryScreen();},),);
    print("Sign Out");
  }
  //facebook logout
  void logoutFacebook() async{
  await facebookLogIn.logOut();
  Navigator.of(context).push(MaterialPageRoute(builder: (context) {return EntryScreen();},),);
  print("User Sign Out");
}
}

Flutter：如何注销Facebook并获取登录对话框

1 个答案: