nextMonth method

dynamic nextMonth()

Implementation

nextMonth() {
  int year = scrollYearInt;
  int month = scrollMonthInt;
  if (month == 12) {
    year += 1;
    month = 1;
  } else {
    month += 1;
  }
  if (year > maxDateTime.year ||
      (year == maxDateTime.year && month > maxDateTime.month)) return;
  controller
      .animateTo(offsetForDateTime(DateTime(year, month)),
          duration: const Duration(milliseconds: 5), curve: Curves.linear)
      .then((value) => notify());
}