当前用户 ID 在退出后保持不变 | Firebase 认证 | Flutter Web

Question

AuthService.dart

 static Future<void> login(
      BuildContext context, String email, String password) {

try{
UserCredential userCredential = await FirebaseAuth.instance
          .signInWithEmailAndPassword(email: email, password: password);
}catch(e){
print(e);
}

static void signOut(BuildContext context) async {
    await FirebaseAuth.instance.signOut();
  }

}

LoginPage.dart

ElevatedButton(
                                onPressed: () {
                                  setState(() async{
                                    if (_loginFormKey.currentState!.validate()) {
                                    _loginFormKey.currentState!.save();
                                    await AuthService.login(context, email!, password!);
                                    }
                                  });
                                },
                                style: ButtonStyle(
                                    backgroundColor:
                                        MaterialStateProperty.resolveWith(
                                            (states) => Colours.blk),
                                    shape: MaterialStateProperty.all<
                                            RoundedRectangleBorder>(
                                        RoundedRectangleBorder(
                                      borderRadius: BorderRadius.circular(30.0),
                                    ))),
                                child: Row(
                                  mainAxisAlignment: MainAxisAlignment.center,
                                  children: [
                                    Text(
                                      "Log in"
                                    ),
                                  ],
                                ),
                              ),

Whenever i use sign out after successfully signing in, the current user id is persistent which makes it impossible to sign in with different credentials unless you restart the website

Answer 1

Can you try sign out like this

Future<void> _signOut() async {
  await FirebaseAuth.instance.signOut();
}