title: facebook login showing only previous logged in account in flutter app
body: <p>I have successfully integrated the facebook login in the flutter application and able to login.</p>
  <p>But it is always the same account I am able to login and it does not show me any other option to login other than the previous facebook account. Below is the code which I executed.</p>
  <pre><code>Future&lt;void&gt; handleLogin() async {
    final FacebookLoginResult result = await facebookLogin.logIn(['email']);
    switch (result.status) {
      case FacebookLoginStatus.cancelledByUser:
        break;
      case FacebookLoginStatus.error:
        break;
      case FacebookLoginStatus.loggedIn:
        try {
          await loginWithfacebook(result);
        } catch (e) {
          print(e);
        }
        break;
    }
  }
  
  Future loginWithfacebook(FacebookLoginResult result) async {
    final FacebookAccessToken accessToken = result.accessToken;
    AuthCredential credential =
    FacebookAuthProvider.credential(accessToken.token);
    var a = await _auth.signInWithCredential(credential);
    setState(() {
      isSignIn = true;
      _user = a.user;
    });
  }
  
  Future&lt;void&gt; gooleSignout() async {
    await _auth.signOut().then((onValue) {
      setState(() {
        facebookLogin.logOut();
        isSignIn = false;
      });
    });
  }
  </code></pre>
  <p>Please suggest the modification of the code to remove the previous sign in through the facebook.
  Screenshot of the screen I see as always <a href="https://i.stack.imgur.com/e1ZQV.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/e1ZQV.png" alt="ScreenShot" /></a></p>