Simplest List Widget

Following is a simple widget where a scrollable list of details is added. Note this is a stateless widget and hence the value doesn't change after creation. 
import 'package:flutter/material.dart';

void main() {
  runApp(
    MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('Hello Rainbow Rectangle'),
        ),
        body: HelloList(),
      ),
    ),
  );
}

class HelloList extends StatelessWidget {
  var list = ["Hello", "Test", "Must", "Rest", "Nest"];

  @override
  Widget build(BuildContext context) {
    return ListView.builder(
        itemCount: 5,
        itemBuilder: (context, index) {
          return Container(
            padding: EdgeInsets.fromLTRB(20, 20, 20, 20),
            child: Text(list[index % list.length] + " " + index.toString()),
          );
        });
  }
}

List with Row layout 

When we want to show list of multiple data items, we could use something like a row layout. Check out the following example. 

class HelloList extends StatelessWidget {
  var list = ["Hello", "Test", "Must", "Rest", "Nest"];
  @override
  Widget build(BuildContext context) {
    return Center(
      child: ListView.builder(
          itemCount: 10,
          itemBuilder: (context, index) {
            return Padding(
                child: Row(mainAxisAlignment: MainAxisAlignment.start,
                  children: [
                    Container(child: Icon(Icons.add_box),padding: EdgeInsets.fromLTRB(0, 0, 10, 0),),
                    Text(list[index % list.length] + " " + index.toString()),
                  ],
                ),
                padding: EdgeInsets.fromLTRB(20, 20, 20, 20));
          }),
    );
  }
}