Why the auto login does not work in flutter

Issue

I do not want to use accesstoken or refreshtoken but it is not working. Does anyone help me to handle this situation? Here is my future =>

Future<bool> autoLogin() async {
  SharedPreferences prefs = await SharedPreferences.getInstance();
  var user = prefs.getString('username');
  var pwd = prefs.getString('password');
  debugPrint(user.toString());
  debugPrint(pwd.toString());
  UserResponse account = await LoginApi().login(user, pwd);
  // debugPrint(account.toString());
  bool acc = prefs.containsKey('userInfo');
  return acc;
}

This is my usage part =>

home: FutureBuilder<bool>(
          future: autoLogin(),
          builder: (context, snapshot){
            if(snapshot.data == null){
              Future.delayed(Duration(milliseconds: 1000), () {
                setState(() {
                  snapshot.data == false;
                });
              });
              return LoadingScreen();
            }
            return snapshot.data == true ? MainWidget() : LoginScreen();
          },
        ),

When i first time to try login it stays on loading screen, snapshot.data stays null. It does not change.

Solution

Create an instance at widget that is int ctr=0; Then you can change there like this:

home: FutureBuilder<bool>(
          future: autoLogin(),
          builder: (context, snapshot){
            if(snapshot.data == null) {
              ctr++;
              if(ctr>1) {
                return LoginScreen();
              }
              else {
                return LoadingScreen();
              }
            }
            return snapshot.data == true ? MainWidget() : LoginScreen();

Answered By - androloper