Dismiss DatePickerDialog on pressing back button

Question

On my view I have a button which when pressed pops up a DatePickerDialog. The poppedup dialog has a \"Done\" button. When I press that button the selected date is populated

Answer 1

Instead of implementing custom DatePickerDialog, you can implement custom OnClickListener for positive button:

DatePickerDialog dateDialog = new DatePickerDialog(this, null, year, month, day);
datePickerDialog.setButton(DialogInterface.BUTTON_POSITIVE,
    getResources().getString(R.string.text_done),
    new OnDoneClickListener(datePickerDialog));

// <...>

private class OnDoneClickListener implements DialogInterface.OnClickListener {

        private DatePickerDialog mPickerDialog;

        BirthDatePickerDialog(DatePickerDialog mPickerDialog) {
            this.mPickerDialog = mPickerDialog;
        }

        @Override
        public void onClick(DialogInterface dialog, int which) {
            SimpleDateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy");
            Calendar cal = Calendar.getInstance();
            DatePicker picker =  mPickerDialog.getDatePicker();
            cal.set(Calendar.YEAR, picker.getYear());
            cal.set(Calendar.MONTH, picker.getMonth());
            cal.set(Calendar.DAY_OF_MONTH, picker.getDayOfMonth());
            spinnerDateBirth.setText(dateFormat.format(cal.getTime()));
        }
}

Any of back or tap on empty area will dismiss the dialog with doing nothing.