Flutter SharedPreferences not recording values but value is set - flutter

Question

SharedPreferences prefs;
Future<SharedPreferences> _prefs = SharedPreferences.getInstance();
Above is how it is initialized
prefs.setString('emailPrefs1', email).then((bool success) {
print('${prefs.getString('emailPrefs1')}');
});
Value is set successfully after this
_getPrefs() async {
prefs = await _prefs;
String emailPrefs1 = prefs.getString('emailPrefs1');
if (emailPrefs1 != null) {
setState(() {
emailController.text = emailPrefs1;
});
}
print(emailPrefs1);
}
But it returns null after initializing this activity in init state.
#override
void initState() {
super.initState();
_getPrefs();
}
I am using shared_preferences: ^0.5.6 version.

Answer 1

if you are sure your 'emailPref' is set, this should work:
class _MyHomePageState extends State<MyHomePage> {
TextEditingController _emailController;
SharedPreferences _prefs;
Future<SharedPreferences> _getPrefs() async{
return await SharedPreferences.getInstance();
}
#override
void initState(){
super.initState();
_emailController = TextEditingController();
_getPrefs().then((prefs){
_prefs = prefs; //If you need your SharedPreference Object later on
_emailController.text = prefs.getString('emailPrefs1');
setState(() {});
});
}
#override
Widget build(BuildContext context) {
return Scaffold(
body: Container(child: Text(_emailController.text))
);
}
#override
void dispose() {
super.dispose();
_emailController.dispose();
}
}

Answer 2

How is the private _prefs being initialized? You can either share more of your code or just pull the value from what you definitely saved to.
void getPrefs() async {
prefs = await SharedPreferences.getInstance(); // this is what you saved to
String emailPrefs1 = prefs.getString('emailPrefs1');
print(emailPrefs1);
if (emailPrefs1 != null) {
setState(() {
emailController.text = emailPrefs1;
});
}
}
You can also print the value straight from the instance when you do save to confirm a successful save.
prefs.setString('emailPrefs1', email).then((bool success) {
print('${prefs.getString('emailPrefs1')}');
});