dispose_controllers
| Severity | Quick Fix | Options |
|---|---|---|
| Error | ✅ | ❌ |
Details
DO dispose AnimationController and all ChangeNotifier subclasses such as TextEditingController, ScrollController and TabController.
Controllers should be disposed in Widget's dispose method to avoid memory leaks.
This lint supports custom controllers that extend
ChangeNotifier.Bad
class _MyWidgetState extends State<MyWidget> {
final _textEditingController = TextEditingController();
@override
Widget build(BuildContext context) {
return Placeholder();
}
}
Good
class _MyWidgetState extends State<MyWidget> {
final _textEditingController = TextEditingController();
@override
Widget build(BuildContext context) {
return Placeholder();
}
@override
void dispose() {
_textEditingController.dispose();
super.dispose();
}
}