Implement OnClickListener in DatePickerDialog to do something is not working

Question

I'm trying to make a DatePickerDialog to change a TextView. But I also want to display a Toast when the user click on the "Ok" button.

So, I implemented DatePickerDialog.OnClickListener and DatePickerDialog.OnDateSetListener and I override both method. But nothing happen when I click the "Ok" button on the DatePicker. Any idea ?

Thank in advance, here is my DatePickerFragment :

@RequiresApi(api = Build.VERSION_CODES.N)
public class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener, DatePickerDialog.OnClickListener {

    public static int year_x;
    public static int month_x;
    public static int day_x;
    public static Calendar calendar = Calendar.getInstance(Locale.FRANCE);


    @RequiresApi(api = Build.VERSION_CODES.N)
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        // Use the current date as the default date in the picker
        final Calendar c = Calendar.getInstance(Locale.FRANCE);
        final int year = c.get(Calendar.YEAR);
        final int month = c.get(Calendar.MONTH);
        final int day = c.get(Calendar.DAY_OF_MONTH);

        DatePickerDialog dialog = new DatePickerDialog(getActivity(), this, year, month, day);

        /*
        // When I do that way and not implement DatePickerDialog.OnClickListener the date is not updated in my TextView switcherDateDay
        dialog.setButton(DialogInterface.BUTTON_POSITIVE, "ok", new DialogInterface.OnClickListener() {
            @SuppressLint("ShowToast")
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(getActivity(), "Test", Toast.LENGTH_LONG).show();
            }
        });
        */
        return dialog;
    }


    @Override
    public void onClick(DialogInterface dialog, int which) {
        if(which == DialogInterface.BUTTON_POSITIVE) {
            Toast.makeText(getActivity(), "Date is selected", Toast.LENGTH_LONG).show();
        }
    }


    @TargetApi(Build.VERSION_CODES.N)
    @RequiresApi(api = Build.VERSION_CODES.M)
    public void onDateSet(DatePicker view, int year, int month, int day) {
        year_x  = view.getYear();
        month_x = view.getMonth();
        day_x = view.getDayOfMonth();

        calendar.set(year_x, month_x, day_x);
        ScheduleCalendar scheduleCal = new ScheduleCalendar(calendar, 0);

        TextView switcherDateDay = (TextView) getActivity().findViewById(R.id.schedule_switcher_date);
        TextView switcherCurrentDay = (TextView) getActivity().findViewById(R.id.schedule_switcher_current_day);
        switcherDateDay.setText(String.format("%s %s %s", scheduleCal.getDayName(), scheduleCal.getDayNo(), scheduleCal.getMonthName()));
        switcherCurrentDay.setText(ScheduleSwitcherFragment.statueOfWeek(scheduleCal));
    }
}

Answer 1

Show your Toast in onDateSet method of datepicker dialog