public static Date convertDateTimeToDate(DateTime dateTime) {
int year = dateTime.getYear();
int datetimeMonth = dateTime.getMonth();
int day = dateTime.getDay();
Calendar calendar = Calendar.getInstance();
calendar.clear();
// datetimeMonth start at 1. Need to minus 1 to get javaMonth
calendar.set(year, datetimeMonth - 1, day);
return calendar.getTime();
}
/**
* Retrieve all the dates for a given calendar month Include previous month, current month and
* next month.
*
* @param month
* @param year
* @param startDayOfWeek : calendar can start from customized date instead of Sunday
* @return
*/
public static ArrayList<DateTime> getFullWeeks(
int month, int year, int startDayOfWeek, boolean sixWeeksInCalendar) {
ArrayList<DateTime> datetimeList = new ArrayList<DateTime>();
DateTime firstDateOfMonth = new DateTime(year, month, 1, 0, 0, 0, 0);
DateTime lastDateOfMonth = firstDateOfMonth.plusDays(firstDateOfMonth.getNumDaysInMonth() - 1);
// Add dates of first week from previous month
int weekdayOfFirstDate = firstDateOfMonth.getWeekDay();
// If weekdayOfFirstDate smaller than startDayOfWeek
// For e.g: weekdayFirstDate is Monday, startDayOfWeek is Tuesday
// increase the weekday of FirstDate because it's in the future
if (weekdayOfFirstDate < startDayOfWeek) {
weekdayOfFirstDate += 7;
}
while (weekdayOfFirstDate > 0) {
DateTime dateTime = firstDateOfMonth.minusDays(weekdayOfFirstDate - startDayOfWeek);
if (!dateTime.lt(firstDateOfMonth)) {
break;
}
datetimeList.add(dateTime);
weekdayOfFirstDate--;
}
// Add dates of current month
for (int i = 0; i < lastDateOfMonth.getDay(); i++) {
datetimeList.add(firstDateOfMonth.plusDays(i));
}
// Add dates of last week from next month
int endDayOfWeek = startDayOfWeek - 1;
if (endDayOfWeek == 0) {
endDayOfWeek = 7;
}
if (lastDateOfMonth.getWeekDay() != endDayOfWeek) {
int i = 1;
while (true) {
DateTime nextDay = lastDateOfMonth.plusDays(i);
datetimeList.add(nextDay);
i++;
if (nextDay.getWeekDay() == endDayOfWeek) {
break;
}
}
}
// Add more weeks to fill remaining rows
if (sixWeeksInCalendar) {
int size = datetimeList.size();
int row = size / 7;
int numOfDays = (6 - row) * 7;
DateTime lastDateTime = datetimeList.get(size - 1);
for (int i = 1; i <= numOfDays; i++) {
DateTime nextDateTime = lastDateTime.plusDays(i);
datetimeList.add(nextDateTime);
}
}
return datetimeList;
}