I want to open my DatePicker from current date to 18 years back for DateofBirth Validation.
Just Add below line
myCalendar.add(Calendar.YEAR,-18)
new DatePickerDialog(getActivity(), dateExpiry, myCalendar
.get(Calendar.YEAR), myCalendar.get(Calendar.MONTH),
myCalendar.get(Calendar.DAY_OF_MONTH)).show();
}