use this piece of code
protected Dialog onCreateDialog(int id) {
Date d=new Date();
Calendar cal=Calendar.getInstance();
cal.set(2000, 1, 1, 0, 0);
d.setTime(cal.getTimeInMillis());
Calendar c = Calendar.getInstance();
int cyear = c.get(Calendar.YEAR);
int cmonth = c.get(Calendar.MONTH);
int cday = c.get(Calendar.DAY_OF_MONTH);
switch (id) {
case DATE_DIALOG_ID:
// start changes...
DatePickerDialog dialog = new DatePickerDialog(this,
mDateSetListener, cyear, cmonth, cday);
dialog.getDatePicker().setMaxDate(d.getTime());
return dialog;
// end changes...
}
return null;
}