avoid-stateless-widget-initialized-fields

added in: 1.5.0

warning

Warns when a StatelessWidget has an initialized final field.

Non-static initialized fields are usually a sign of a state. Consider converting the widget to StatefulWidget.

Example

❌ Bad:

class AnotherWidget extends StatelessWidget {
  final initialized = <String>{}; // LINT

  late final someField = <String>{}; // LINT
}

✅ Good:

class AnotherWidget extends StatelessWidget {
  static final initialized = <String>{};

  final someField;

  const AnotherWidget(this.someField);
}

// Or

class _AnotherWidgetState extends State<AnotherWidget> {
  final initialized = <String>{};

  late final someField = <String>{};
}