How do I detect a cancel click of the datepicker dialog?

Question

i am using following example of date picker

http://developer.android.com/guide/tutorials/views/hello-datepicker.html

now i want to perform some functionality

Answer 1

Since DatePickerDialog is a Dialog, it supports the following:

setOnCancelListener(OnCancelListener listener)
setOnDismissListener(OnDismissListener listener)

Using both listeners, you can identify all dismissals of the date picker dialog. The first would answer the question, the latter is for completion.

Answer 2

public void showDatePicker() {

        final Calendar c = Calendar.getInstance();
        int year = c.get(Calendar.YEAR);
        int month = c.get(Calendar.MONTH);
        int day = c.get(Calendar.DAY_OF_MONTH);

        DatePickerDialog datePicker = new DatePickerDialog(getActivity(), (view, year1, month1, day1) -> {
            Calendar c1 = Calendar.getInstance();
            c1.set(year1, month1, day1);
            Date date = c1.getTime();
            SimpleDateFormat formatter = new SimpleDateFormat("dd MMMM yyyy");
            String d = formatter.format(date);
//            btnDatePicker.setText(d);
//            selectedDate = d;
        }, year, month, day) {
            @Override
            public void onClick(@NonNull DialogInterface dialog, int which) {
                super.onClick(dialog, which);
                if (which == DialogInterface.BUTTON_POSITIVE) {
                } else if (which == DialogInterface.BUTTON_POSITIVE) {

                }
            }
        };

        datePicker.getDatePicker().setMinDate(System.currentTimeMillis());
        datePicker.show();
    }

Answer 3

The following code helped me solve an issue with the Cancel button not closing out the Date picker window. Thanks to eSilver for the solution.

dialog.setButton(DialogInterface.BUTTON_NEGATIVE, "Cancel", new DialogInterface.OnClickListener() 
{
    public void onClick(DialogInterface dialog, int which) {
        if (which == DialogInterface.BUTTON_NEGATIVE) {
            datePickerPlugin.success(new PluginResult(PluginResult.Status.OK, ""), callBackId);
            dateDialog.hide();
        }
    }
});

Answer 4

I added some additional code to @PeteH great answer (which provides for reacting to user pressing date or cancelling).

private void showDatePickerDialog() {
    final int[] year = new int[1];
    final int[] month = new int[1];
    final int[] day = new int[1];
    isDataSet = false;  // this is used by the onDismiss handler

    // Set initial time period in DatePicker to current month
    Calendar calendarCurrent = Calendar.getInstance();
    month[0] = calendarCurrent.get(Calendar.MONTH);
    day[0] =   calendarCurrent.get(Calendar.DAY_OF_MONTH);
    year[0] =  calendarCurrent.get(Calendar.YEAR);

    DatePickerDialog datePickerDialog = new DatePickerDialog(
            MyActivity,
            new DatePickerDialog.OnDateSetListener() {
        @Override
        public void onDateSet(DatePicker datePicker, int y, int m, int d) {
            isDataSet =true;
            //user confirms date
            year[0] =y;
            month[0] = m;
            day[0] =d;

            //do something with date selected

        }
    },
            year[0],
            month[0],
            day[0]
    );
    datePickerDialog.setOnDismissListener(mOnDismissListener);
    datePickerDialog.show();
}
private DialogInterface.OnDismissListener mOnDismissListener =new DialogInterface.OnDismissListener() {
    public void onDismiss(DialogInterface dialog) {
        if (!isDataSet){

            //do something if user cancels

    }
};

Answer 5

In this part of the code:

 private DatePickerDialog.OnDateSetListener mDateSetListener =
            new DatePickerDialog.OnDateSetListener() {

                public void onDateSet(DatePicker view, int year, 
                                      int monthOfYear, int dayOfMonth) {
                    mYear = year;
                    mMonth = monthOfYear;
                    mDay = dayOfMonth;
                    updateDisplay();
                }
            };

you have to implement also onClick():

public void  onClick  (DialogInterface  dialog, int which) {
   if (which == Button.NEGATIVE) {
      //Cancel
   }
}

API for Button.NEGATIVE

Answer 6

Here's how I did it:

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

  dialog.setButton(DialogInterface.BUTTON_NEGATIVE, getString(R.string.cancel), new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int which) {
       if (which == DialogInterface.BUTTON_NEGATIVE) {
          // Do Stuff
       }
    }
  });