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

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