code: public void setShowWeekdayNames(boolean enable) {
          if(showWeekdayNames != enable) {
              showWeekdayNames = enable;
              // if FLAG_NUMBERS has been set, toggle the secondary text in the adapter
              if(showNumbersInView)
                  setShowNumbersInViewInt(enable);
              // reselect the current item so it will use the new setting:
              setSelectedDate(getSelectedDate());
          }
      }
docs: Toggles showing the weekday names instead of dates for the next week. Turning this on will
  display e.g. "Sunday" for the day after tomorrow, otherwise it'll be January 1.
  @param enable True to enable, false to disable weekday names.