Android Utililty Methods Week Get

List of utility methods to do Week Get

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Description

The list of methods to do Week Get are organized into topic(s).

Method

DategetDateAWeekAgo(Date date)
get Date A Week Ago 
Calendar c = Calendar.getInstance();
c.setTime(date);
c.add(Calendar.DAY_OF_MONTH, -7);
Date ret = c.getTime();
return ret;
DategetDateInAWeek(Date date)
get Date In A Week 
Calendar c = Calendar.getInstance();
c.setTime(date);
c.add(Calendar.DAY_OF_MONTH, 7);
Date ret = c.getTime();
return ret;
intgetWeeksSinceEpochFromJulianDay(int julianDay, int firstDayOfWeek)
Returns the week since Time#EPOCH_JULIAN_DAY (Jan 1, 1970) adjusted for first day of week. 
int diff = Time.THURSDAY - firstDayOfWeek;
if (diff < 0) {
    diff += 7;
int refDay = Time.EPOCH_JULIAN_DAY - diff;
return (julianDay - refDay) / 7;
voidgetStartAndEndDatesForWeek(Calendar currentDate, Calendar startDate, Calendar endDate)
get Start And End Dates For Week 
Calendar cal = (Calendar) currentDate.clone();
int i = 0;
while (i < 8 && Calendar.SUNDAY != cal.get(Calendar.DAY_OF_WEEK)) {
    cal.add(Calendar.DAY_OF_MONTH, -1);
    i++;
if (i == 0) {
    cal.add(Calendar.DAY_OF_MONTH, -1);
...
String[]getDaysOfWeekNames()
get Days Of Week Names 
return getDaysOfWeekNames(Locale.getDefault(), LONG);
String[]getDaysOfWeekNames(Locale l, int len)
get Days Of Week Names 
String[] s;
if (len == SHORT)
    s = new DateFormatSymbols(l).getShortWeekdays();
else
    s = new DateFormatSymbols(l).getWeekdays();
int firstDay = Calendar.getInstance().getFirstDayOfWeek();
if (firstDay != 1) {
    String[] buf = new String[8];
...
chargetEnglishDayInWeek(Date date)
Returns the first letter of day in week. 
Calendar c = Calendar.getInstance();
c.setTime(date);
int dayInWeek = c.get(Calendar.DAY_OF_WEEK);
switch (dayInWeek) {
case Calendar.MONDAY:
    return 'M';
case Calendar.TUESDAY:
    return 'T';
...
intgetFirstDayOfFirstWeekOfMonth(final Calendar cal)
get First Day Of First Week Of Month 
Calendar c = (Calendar) cal.clone();
c.set(DAY_OF_MONTH, 1);
return c.get(DAY_OF_WEEK);