ExpandedControlsToolbar constructor Null safety

const ExpandedControlsToolbar(
  1. {required FlutterCastFramework castFramework,
  2. String title = "",
  3. String subtitle = "",
  4. VoidCallback? onBackTapped,
  5. Key? key}
)

Implementation

const ExpandedControlsToolbar({
  required this.castFramework,
  this.title = "",
  this.subtitle = "",
  this.onBackTapped,
  Key? key,
}) : super(key: key);