import 'package:date_picker_timeline/date_picker_timeline.dart';

    Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: <Widget>[
          DatePickerTimeline(
            DateTime.now(),
            onDateChange: (date) {
              // New date selected
              print(date.day.toString());
            },
          ),
        ],
    ),

    DatePickerTimeline(
        this.currentDate, {
        Key key,
        this.dateSize = Dimen.dateTextSize,
        this.daySize = Dimen.dayTextSize,
        this.monthSize = Dimen.monthTextSize,
        this.dateColor = AppColors.defaultDateColor,
        this.monthColor = AppColors.defaultMonthColor,
        this.dayColor = AppColors.defaultDayColor,
        this.selectionColor = AppColors.defaultSelectionColor,
        this.onDateChange,
      }) : super(key: key);