请注意,DatePickerDialog是我在Android文档中从我发布的链接中引用的对象.

@Override
protected Dialog onCreateDialog(int id) {
    Calendar c = Calendar.getInstance();
    int cyear = c.get(Calendar.YEAR);
    int cmonth = c.get(Calendar.MONTH);
    int cday = c.get(Calendar.DAY_OF_MONTH);
    switch (id) {
        case DATE_DIALOG_ID:
        //start changes...
        DatePickerDialog dialog = new DatePickerDialog(this,mDateSetListener,cyear,cmonth,cday);
        dialog.getDatePicker().setMaxDate(new Date().getTime());
        return dialog;
        //end changes...
    }
    return null;
}