title: How to make Listview.builder start from the current day in Flutter
body: <p>Hello guys I have a Listview.builder which display the week days, and I want to make this listview.builder start always from the current days which is highlighted.
  This is my Code:</p>
  <pre><code>ListView.builder(
                    scrollDirection: Axis.horizontal,
                    itemCount: 7,
                    itemBuilder: (BuildContext context, int index) {
                      DateTime now = DateTime.now();
                      int milliseconds = now.millisecondsSinceEpoch -
                          (now.weekday - 1) * 24 * 60 * 60 * 1000 +
                          weekIndex * 7 * 24 * 60 * 60 * 1000 +
                          index * 24 * 60 * 60 * 1000;
                      DateTime dayDateTime =
                      DateTime.fromMillisecondsSinceEpoch(milliseconds);
                      int monthIndex = dayDateTime.month - 1;
                      List months = [
                        'Gennaio',
                        'Febbraio',
                        'Marzo',
                        'Aprile',
                        'Maggio',
                        'Giugno',
                        'Luglio',
                        'Agosto',
                        'Settembre',
                        'Ottobre',
                        'Novembre',
                        'Dicembre'
                      ];
                      List weekdays = [
                        'Lunedì',
                        'Martedì',
                        'Mercoledì',
                        'Giovedì',
                        'Venerdì',
                        'Sabato',
                        'Domenica'
                      ];
                      String month = months[monthIndex];
                      String day = dayDateTime.day.toString();
                      String weekday = weekdays[dayDateTime.weekday - 1];
                      String date = weekday + ' ' + day + ' ' + month;
                      return Row(
                        mainAxisAlignment: MainAxisAlignment.center,
                        children: [
                          Column(
                            children: [
                              Container(
                                height: 50,
                                width: MediaQuery.of(context).size.width*0.50,
                                child: Card(
                                  color: now.weekday == index + 1 &amp;&amp; weekIndex == 0 ? Colors.orange[900]: Colors.orange,
                                  child: Center(
                                    child: Text(
                                      date,
                                      style: TextStyle(
                                          fontSize: 13, color: Colors.white),
                                    ),
                                  ),
                                ),
                              ),
  
  </code></pre>
  <p>as you can see the current days is controlled by <code>now.weekday == index + 1 &amp;&amp; weekIndex == 0</code></p>
  <p>I guess I need to add a controller to Listviewbuilder to achieve my purpose but I dont know how to do.
  And I need also to consider when is Sunday it remaine just one day in the list.
  Any Input?</p>