How to create multidimensional lists and loop widgets containing the lists value?

Question

I'm new to Flutter & Dart and trying to build an App.

My Goal for now is to build a List (Array), but with an "index" to access it later. Afterwards I want to output it within a widget. Unfortunately I haven't found any tutorials or helpful ressources on the web.

Build a List which contains the date & days for an event. I tried the following, but it doesn't work.

var events = [ {"day": "Monday", "date": "01.01.2019", "title": "Musical Event Austria"}, {"day": "Wednesday", "date", "01.01.2019", "title": "Musical Event 2"}];

Loop throught the list and output it within a widget

new Container(decoration: const BoxDecoration(
          color: Color(0xFF0F1633),
),
 child: SingleChildScrollView(
        scrollDirection: Axis.horizontal,
        child: Row(
            mainAxisAlignment: MainAxisAlignment.spaceAround,
            children: events.map((day, date, title) => new Text(title)).toList(),
          ),
        ),
      ),

So how may I build the list the right way and output it? What I want to output inside a Text Widget is actually the title, date and day...but really tried many ways to acchieve it, no way. :)))

Thanks in advance!

cipli onat · Accepted Answer · 2019-03-24 17:52:56Z

3

you may create a basic class for your need

class YourObject {
  final String title;
  final String day;
  final String date;

  YourObject({this.title, this.day, this.date});
}

create a List from that class/object

  List<YourObject> yourObjectList = [
    YourObject(day: "Monday", date: "01.01.2019", title: "Musical Event Austria"),
    YourObject(day: "Wednesday", date: "01.01.2019", title: "Musical Event 2"),
  ];

and you able to render title , date and day with like that or you can change the Container according to your needs/design

  return Column(
    children: yourObjectList.map((currentObject) {
      return Container(
        child: Row(
          children: <Widget>[
            Text(currentObject.title),
            Text(currentObject.day),
            Text(currentObject.date),
          ],
        ),
      );
    }).toList(),
  );

answered Mar 24, 2019 at 17:52

cipli onat

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1 Comment

talaash Over a year ago

Thanks Sir! Worked like a charme. :)))

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