code: @SuppressWarnings("unused")
      public void setMinDate(Calendar calendar) {
          mDefaultLimiter.setMinDate(calendar);
  
          if (mDayPickerView != null) {
              mDayPickerView.onChange();
          }
      }
docs: Sets the minimal date supported by this DatePicker. Dates before (but not including) the
  specified date will be disallowed from being selected.
  
  @param calendar a Calendar object set to the year, month, day desired as the mindate.