/**
 * If true, show whole calendar.
 * e.g. showing date is April, if show whole calendar, 03/30 and 05/01 will show.
 */
public void setShowOverflowDate(boolean showOverflowDate);

public boolean isShowOverflowDate();

/**
 * Constructs a <code>SimpleDateFormat</code> using the given pattern and
 * the default date format symbols for the given locale.
 * <b>Note:</b> This constructor may not support all locales.
 * For full coverage, use the factory methods in the {@link DateFormat}
 * class.
 *
 * @param pattern the pattern describing the date and time format
 * @param locale  the locale whose date format symbols should be used
 */
public void setTitleFormat(String pattern, Locale locale);

/**
 * Set listener for date be clicked.
 *
 * @param onDateClickedListener listener
 */
public void setOnDateClickedListener(OnDateClickedListener onDateClickedListener);

/**
 * Set listener for current showing month changed.
 *
 * @param onMonthChangedListener listener
 */
public void setOnMonthChangedListener(final OnMonthChangedListener onMonthChangedListener);

/**
 * Set drag enable for page.
 */
public void setCanDrag(boolean canDrag);

/**
 * Return drag enable of page.
 */
public boolean canDrag();

/**
 * Set fling enable for page.
 */
public void setCanFling(boolean canFling);

/**
 * Return fling enable of page.
 */
public boolean canFling();

/**
 * Set button visible for last month.
 *
 * @param visibility {@link Visibility}
 */
public void setLastMonthButtonVisibility(@Visibility int visibility);

/**
 * Set button visible for next month.
 *
 * @param visibility {@link Visibility}
 */
public void setNextMonthButtonVisibility(@Visibility int visibility);

/**
 * Return item view of today. If today not showing, return null。
 */
public View getTodayItemView();

/**
 * Set the layout will wrap content or not.
 *
 * @param scaleEnable if true, the layout will wrap content.
 */
public void setScaleEnable(boolean scaleEnable);

calendarView.setVagueAdapter(new SampleVagueAdapter());

// layout_checkin_calendar_item must hava a TextView that's id is tv_day_of_month
calendarView.setVagueAdapter(new MyVagueAdapter(R.layout.layout_checkin_calendar_item));

private class MyVagueAdapter extends VagueAdapter<Map<String, Map<String, Checkin>>> {

    /**
     * @params dateLayout layout resource id for date, must hava a TextView that's id is tv_day_of_month
     */
    MyVagueAdapter(@LayoutRes int dateLayout) {
        super(dateLayout);
    }

    @Override
    public void onBindVague(View itemView, int year, @Month int month, @DayOfMonth int dayOfMonth) {
        // do something, show custom data  
    }

    @Override
    public void flagToday(View todayView) {            
        // do something, set a flag for today's view
    }

    @Override
    public void flagNotToday(View dayView, Date date) {
       // do something, set a flag for not today's view
    }
}