Flutter bool name = String its possible? - flutter

Question

Hey i make a Favorite System with a bool to say if is favorite or not.
But if the name of the bool is always the same it applies to all my entries!
but each entry has its own name (widget.name), and i thought maybe something like that could work
bool widget.name;
but this not work :(
how can i solve that each entry has its own bool?
by the way i use this plugin for that
https://pub.dev/packages/shared_preferences/example
SharedPreferences sharedPreferences;
bool isfavorit;
#override
void initState() {
super.initState();
SharedPreferences.getInstance().then((SharedPreferences sp) {
sharedPreferences = sp;
isfavorit = sharedPreferences.getBool(spKey);
// will be null if never previously saved
if (isfavorit == null) {
isfavorit = false;
persist(isfavorit); // set an initial value
}
setState(() {});
});
}
void persist(bool value) {
setState(() {
isfavorit = value;
});
sharedPreferences?.setBool(spKey, value);
}
Complete Code
import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';
class Details extends StatefulWidget {
final String name;
Details(
this.name,
);
#override
_DetailsState createState() => _DetailsState();
}
const String spKey = 'myBool';
class _DetailsState extends State<Details> {
SharedPreferences sharedPreferences;
bool isfavorit;
#override
void initState() {
super.initState();
SharedPreferences.getInstance().then((SharedPreferences sp) {
sharedPreferences = sp;
isfavorit = sharedPreferences.getBool(spKey);
// will be null if never previously saved
if (isfavorit == null) {
isfavorit = false;
persist(isfavorit); // set an initial value
}
setState(() {});
});
}
void persist(bool value) {
setState(() {
isfavorit = value;
});
sharedPreferences?.setBool(spKey, value);
}
// ignore: missing_return
IconData favicon() {
if (isfavorit == true) {
return Icons.favorite;
} else if (isfavorit == false) {
return Icons.favorite_border;
}
}
// ignore: missing_return
Color favicolor() {
if (isfavorit == true) {
return Colors.red;
} else if (isfavorit == false) {
return Colors.white;
}
}
void changefav() {
if (isfavorit == true) {
return persist(false);
} else if (isfavorit == false) {
return persist(true);
}
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
actions: [
IconButton(
icon: Icon(
favicon(),
color: favicolor(),
),
onPressed: () => changefav(),
),
],
title: Text(widget.name),
),
body: Container(
child: Text(widget.name),
),
);
}
}

Answer 1

You are always saving the isFavorite to the same key in shared preferences, instead of using a constant key use one that is based on the widget.name
So for instance:
sharedPreferences.getBool('details_favorite_${widget.name}');