Problems with shared preference-flutter - flutter

Question

I wanna ask how to save state from textfield? cause i can't saving this state, after hot restart my value always reset, i just want to save state after hot restart, can i know my problem where it's wrong?
it's my code:
class HomePage extends StatefulWidget {
#override
State<HomePage> createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
TextEditingController nameController = TextEditingController();
var nama = 'nama';
void setPref() async {
var prefs = await SharedPreferences.getInstance();
prefs.setString(nama, nameController.text);
}
void load() async {
var prefs = await SharedPreferences.getInstance();
setState(() {
nama = prefs.getString(nameController.text) ?? '';
nameController.text = nama;
});
}
#override
void initState() {
// TODO: implement initState
super.initState();
load();
}
#override
Widget build(BuildContext context) {
.....
}
}

Answer 1

There is a problem in your code:
In shared Prefrences you have to use key to store and get value.
But you are using it in wrong way:
Here is correct code:
void load() async {
var prefs = await SharedPreferences.getInstance();
String value = '';
setState(() {
value= prefs.getString(nama) ?? '';
nameController.text = value;
});
}
The nama is a key name and you are also using it to receive value. And the key you are using is nameController.text is also wrong.
Bonus
The convection of writing keys in Flutter is Following:
String nameKey = 'NAMEKEY';