/** Switches the calendar to the previous month. */
private void previousMonth() {
Calendar cal = calendarView.getCalendar();
cal.add(Calendar.MONTH, -1);
calendarView.setFirstDisplayedDay(cal.getTime());
}
/** Switches the calendar to the next year. */
private void nextYear() {
Calendar cal = calendarView.getCalendar();
cal.add(Calendar.YEAR, +1);
calendarView.setFirstDisplayedDay(cal.getTime());
}
/** Switches the calendar to the current date */
private void today() {
Calendar cal = Calendar.getInstance();
calendarView.setFirstDisplayedDay(cal.getTime());
}