Android Utililty Methods Calendar Add

List of utility methods to do Calendar Add

  1. HOME
  2. Android
  3. C
  4. Calendar Add

Description

The list of methods to do Calendar Add are organized into topic(s).

Method

Calendaradd(int field, long time, int val)
Useful routine to add given a number of units to specifed part of given time. 
Calendar c = Calendar.getInstance();
c.setTimeInMillis(time);
c.add(field, val);
return c;
DateaddDay(Calendar c, int days)
add Day 
if (c == null)
    return null;
c.add(Calendar.DAY_OF_MONTH, days);
return c.getTime();
DateaddMonth(Calendar c, int months)
add Month 
if (c == null)
    return null;
c.add(Calendar.MONTH, months);
return c.getTime();
Calendarafter(Calendar c, long offset)
after 
Calendar calendar = null;
if (c != null) {
    calendar = c;
} else {
    calendar = Calendar.getInstance();
calendar.setTimeInMillis(calendar.getTimeInMillis() - offset);
return calendar;
...
CalendarafterNDays(Calendar c, int n)
after N Days 
long offset = n * 24 * 60 * 60 * 1000;
Calendar calendar = null;
if (c != null) {
    calendar = c;
} else {
    calendar = Calendar.getInstance();
calendar.setTimeInMillis(calendar.getTimeInMillis() + offset);
...
DategetDateAdd(Date date, int amount)
get Date Add 
Calendar cal = new GregorianCalendar();
cal.setTime(date);
cal.add(GregorianCalendar.DATE, amount);
return cal.getTime();
StringgetDateByAddFltHour(float flt)
get Date By Add Flt Hour 
int addMinute = (int) (flt * 60);
Calendar cal = new GregorianCalendar();
cal.setTime(new Date());
cal.add(GregorianCalendar.MINUTE, addMinute);
return getFormatDateTime(cal.getTime(), "yyyy-MM-dd HH:mm:ss");
StringgetDateByAddHour(String datetime, int minute)
get Date By Add Hour 
String returnTime = null;
Calendar cal = new GregorianCalendar();
SimpleDateFormat ft = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date;
try {
    date = ft.parse(datetime);
    cal.setTime(date);
    cal.add(GregorianCalendar.MINUTE, minute);
...
StringgetFormatCurrentAdd(int amount, String format)
get Format Current Add 
Date d = getDateAdd(new Date(), amount);
return getFormatDateTime(d, format);
Calendartomorrow(Calendar c)
tomorrow 
long offset = 1 * 24 * 60 * 60 * 1000;
Calendar calendar = null;
if (c != null) {
    calendar = c;
} else {
    calendar = Calendar.getInstance();
calendar.setTimeInMillis(calendar.getTimeInMillis() + offset);
...