How to prevent select passed date in DatePickerDialog (setMinDate not work as expected)

Question

I found DatePicker(Dialog) very confusing... When setMinDate() is set... the shown calendar really "visually disable" passed dates (make them gray) but these dates are still posible to select! I want to user prevent to do so. Ideal way would be make passed dates non-clickable / unselectable. If it is not possible, than at least catch this event (which one? onDateChanged?, onSelected? ...) and toast a message and disable OK button until user selects a valid date.

Unfortunatelly, datepicker(dialog) has no onChangedListener (actually it has but has no setter for it). So the only event I get is on OK button pressed. It is too late.

Here is my code

    dateTextView = (TextView) view.findViewById(R.id.createOrder_date);
    dateTextView.setText(R.string.createOrder_time_now);
    dateTextView.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            final Calendar calendarNow = Calendar.getInstance();
            final int yearNow = calendarNow.get(Calendar.YEAR);
            final int monthNow = calendarNow.get(Calendar.MONTH);
            final int dayNow = calendarNow.get(Calendar.DAY_OF_MONTH);

            DatePickerDialog datePickerDialog = new DatePickerDialog(CreateOrderFragment.this.getActivity(), new DatePickerDialog.OnDateSetListener() {
                @Override
                public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                    Calendar calendar = Calendar.getInstance();
                    calendar.set(year, monthOfYear, dayOfMonth);

                    if (calendar.before(calendarNow)) {
                        Toast.makeText(CreateOrderFragment.this.getActivity(), getResources().getString(R.string.createOrder_datePicker_selectFutureDate), Toast.LENGTH_SHORT).show();
                        view.updateDate(yearNow, monthNow, dayNow);
                        calendar = calendarNow;
                    }

                    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
                    dateTextView.setText(sdf.format(calendar.getTime()));
                }
            }, yearNow, monthNow, dayNow);

            datePickerDialog.getDatePicker().setMinDate(System.currentTimeMillis() - 1000);
            datePickerDialog.setTitle(getResources().getString(R.string.createOrder_datePicker_title));
            datePickerDialog.show();

        }
    });

Answer 1

When you receive the date in onDateSent(), just check if it's earlier than the date you set in setMinDate(). If so, then just show the DatePickerDialog again.

Code:

final long tomorrow = System.currentTimeMillis() + DateUtils.MILLIS_IN_DAY;

private void showDatePickerDialog()
{
    mDatePickerDialog = new DatePickerDialog(getActivity(), new DatePickerDialog.OnDateSetListener()
    {
        @Override
        public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth)
        {
            Calendar calendar = Calendar.getInstance();
            calendar.set(year, monthOfYear, dayOfMonth);

            //kv If user tries to select date in past (or today)
            if (calendar.getTimeInMillis() < tomorrow)
            {
                //kv Make them try again
                showDatePickerDialog();

                Toast.makeText(this, "Invalid date, please try again", Toast.LENGTH_LONG).show();
            }
            else
            {
                //success
            }
        }
    }, calendarTwoWeeksInFuture.get(Calendar.YEAR), calendarTwoWeeksInFuture.get(Calendar.MONTH), calendarTwoWeeksInFuture.get(Calendar.DAY_OF_MONTH));

    //kv Set minimum date as tomorrow
    mDatePickerDialog.getDatePicker().setMinDate(tomorrow);

    mDatePickerDialog.show();
}