Date Picker Dialog

int mYear, mMonth, mDay;
final Calendar c = Calendar.getInstance();
mYear = c.get(Calendar.YEAR);
mMonth = c.get(Calendar.MONTH);
mDay = c.get(Calendar.DAY_OF_MONTH);




DatePickerDialog datePickerDialog = new DatePickerDialog(getActivity(),
        new DatePickerDialog.OnDateSetListener() {
            @Override            public void onDateSet(DatePicker view, int year,
                                  int monthOfYear, int dayOfMonth) {

                Calendar cal = new GregorianCalendar(year, monthOfYear, dayOfMonth);

                Date current = cal.getTime();
                int diff1 = new Date().compareTo(current);
                if (diff1 < 0) {

                    Snackbar.make(coordinatorLayout, "valid Message", Snackbar.LENGTH_LONG);

} else {

                    SimpleDateFormat dateFormat = new SimpleDateFormat("MM-dd-yyyy");
                    datePickerTv.setText(dateFormat.format(cal.getTime()));
                }
            }
        }, mYear, mMonth, mDay);
datePickerDialog.getDatePicker().setMaxDate(System.currentTimeMillis() - 1000);
datePickerDialog.show();