flutter에서 datetime 유형을 변경할때 사용!! String dateFormat(String dateString, {bool numericDates = true}) { DateTime notificationDate = DateFormat("yyyy-MM-dd HH:mm:ss").parse(dateString); print(notificationDate); String month = notificationDate.month < 10 ? '0${notificationDate.month}' : "${notificationDate.month}"; String date = notificationDate.day < 10 ? '0${notificationDate.day}' : "${notificationD..