I see that I can access InheritedWidgets inside the build() method like this: final inheritedWidget = ChronoApp.of(context); but what if I want to access it somewhere else, say in initState() which has no context. How would I do this?
2 Answers
What I found to work for me is getting the parent context and using it in the didChangeDependencies() function that is called after initState. Like this
@override // TODO: implement context BuildContext get context => super.context; @override void didChangeDependencies() { bloc = LoginBlocProvider.of(context); bloc.isAuthenticated.listen((bool value) { setState(() { isLoading = false; }); if (value) { Navigator.push(context, MaterialPageRoute( builder: (BuildContext context) => HomeScreen() )); } }); super.didChangeDependencies(); } From de didChangeDependencies() docs:
This method is also called immediately after initState. It is safe to call BuildContext.inheritFromWidgetOfExactType from this method.
I'm still trying to fully understand this feature but this is what worked for me
Comments
According to this docs context should be available in initState using the context getter.
https://docs.flutter.io/flutter/widgets/State/context.html
The framework associates State objects with a BuildContext after creating them with StatefulWidget.createState and before calling initState.
3 Comments
didChangeDependencies() is the better place as its called after the initState() and you will get the context there.didChangeDependencies can be called more than once though.