Don’t stock context directly into custom classes, and don’t use context after async if you’re not sure your widget is mounted.
Do something like this:
class MyCustomClass {
const MyCustomClass();
Future<void> myAsyncMethod(BuildContext context, VoidCallback onSuccess) async {
await Future.delayed(const Duration(seconds: 2));
onSuccess.call();
}
}
class MyWidget extends StatefulWidget {
@override
_MyWidgetState createState() => _MyWidgetState();
}
class _MyWidgetState extends State<MyWidget> {
@override
Widget build(BuildContext context) {
return IconButton(
onPressed: () => const MyCustomClass().myAsyncMethod(context, () {
if (!mounted) return;
Navigator.of(context).pop();
}),
icon: const Icon(Icons.bug_report),
);
}
}