DateTimePicker constructor

const DateTimePicker({Key key, String labelText, DateTime selectedDate, TimeOfDay selectedTime, ValueChanged<DateTime> selectDate, ValueChanged<TimeOfDay> selectTime, bool showDay: true })

Implementation 

const DateTimePicker({
  Key key,
  this.labelText,
  this.selectedDate,
  this.selectedTime,
  this.selectDate,
  this.selectTime,
  this.showDay = true,
}) : super(key: key);