CircularProgress.dart

// 1
class CircularProgress extends StatefulWidget{
  CircularProgress({
    @required this.size,
    this.secondaryColor = Colors.white,
    this.primaryColor = Colors.orange,
    this.lapDuration = 1000,
    this.strokeWidth = 5.0
  });
// 2
  final double size;
  final Color secondaryColor;
  final Color primaryColor;
  final int lapDuration;
  final double strokeWidth;

  @override
  _CircularProgress createState() => new _CircularProgress();

}
// 3
class _CircularProgress extends State<CircularProgress> {

  @override
  void initState() {
    super.initState();
    });
  }

  @override
  Widget build(BuildContext context) {
    return Container();
  }
}