Calling SharedPreferences in didChangeDependencies - flutter

Question

Can you call a boolean with Shared Preferences in didChangeDependencies?
I need to use isToolTipTapped as a conditional in my build method but it doesn't seem to be working..
#override
void didChangeDependencies() async {
isToolTipTapped = await checkIfToolTipTapped();
print('$isToolTipTapped');
super.didChangeDependencies();
}
Future<bool> checkIfToolTipTapped() async {
SharedPreferences prefs = await SharedPreferences.getInstance();
return prefs.getBool(SchnapConfigValues.toolTipTapped ?? false);
}
print('$isToolTipTapped'); does return the boolean in didChangeDependencies method but my build method doesn't take the value

Answer 1

I think you should be try this code:
class _DemoPageState extends State<DemoPage> {
static const TAG = 'DemoPage';
bool isToolTipTapped;
Future<bool> checkIfToolTipTapped() async {
SharedPreferences prefs = await SharedPreferences.getInstance();
return prefs.getBool(SchnapConfigValues.toolTipTapped ?? false);
}
#override
void didChangeDependencies() {
super.didChangeDependencies();
checkIfToolTipTapped().then((value) {
setState(() {
isToolTipTapped = value;
});
});
}
#override
Widget build(BuildContext context) {
if (isToolTipTapped == null) {
return Your Loading Widget...
} else {
//Handle logic with isToolTipTapped
}
}
}

Answer 2

class _DemoPageState extends State<DemoPage> {
static const TAG ='DemoPage';
bool isToolTipTapped = false;
Future<SharedPreferences> _prefs = SharedPreferences.getInstance();
Future<bool> checkIfToolTipTapped() async {
SharedPreferences prefs = await _prefs;
return prefs.getBool(SchnapConfigValues.toolTipTapped ?? false);
}
#override
void didChangeDependencies() {
super.didChangeDependencies();
checkIfToolTipTapped().then((value) {
setState(() {
isToolTipTapped = value;
});
});
}
#override Widget build(BuildContext context) {
if (isToolTipTapped) {
return Your Loading Widget...
} else {
//Handle logic with isToolTipTapped
}
}
}