DatePicker.OnDateChangedListener called twice

Question

I\'m trying to create an app where the user selects a date from a DatePicker, and then a list is updated with some values.

My GUI looks like this:

Answer 1

Perhaps modify the listener by adding instance variables, that way you can check to see if they are different from the last time the method was called:

final DatePickerDialog datePickerDialog = new DatePickerDialog (this, new DatePickerDialog.OnDateSetListener()
    {   
        private int year;
        private int month;
        private int day;

        @Override
        public void onDateSet (DatePicker view, int year, int monthOfYear, int dayOfMonth)
        {
            if (this.year == year && this.month == monthOfYear && this.day == dayOfMonth)
                return;

            this.year = year;
            this.month = monthOfYear;
            this.day = dayOfMonth;

            calendar.set (year, month, day);
            int index = officeCalendar.indexOfKey (calendar.getTimeInMillis ());

            if (index > -1)
                viewPager.setCurrentItem (index);
        }
    }, calendar.get (Calendar.YEAR), calendar.get (Calendar.MONTH), calendar.get (Calendar.DATE));