fltkeep-notes_grid.dart

class NotesGrid extends StatelessWidget {
  final List<Note> notes;
  final void Function(Note) onTap;

  const NotesGrid({Key key, this.notes, this.onTap}) : super(key: key);

  /// A static factory method can be used as a function reference
  static NotesGrid create({Key key, this.notes, this.onTap}) => 
    NotesGrid(key: key, notes: notes, onTap: onTap);

  @override
  Widget build(BuildContext context) => SliverGrid(
  ...
  );
}