[Flutter]カレンダーのセルにタップ処理を追加する方法

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        body: Container(
      child: SfCalendar(
        view: CalendarView.month,
        onTap: (CalendarTapDetails details) {
          showDialog(
              context: context,
              builder: (BuildContext context) {
                return AlertDialog(
                  title: Container(
                    child: Text("${details.date}"),
                  ),
                  actions: <Widget>[
                    new TextButton(
                        onPressed: () {
                          Navigator.of(context).pop();
                        },
                        child: Text('Close'))
                  ],
                );
              });
        },
      ),
    ));
  }