gistfile1.txt

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';

void main() {
  // Setting the screen orientation [landscape]
  WidgetsFlutterBinding.ensureInitialized();
  SystemChrome.setPreferredOrientations(
          [DeviceOrientation.landscapeLeft, DeviceOrientation.landscapeRight])
      .then((_) {
    runApp(MyApp());
  });
}

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.red,
        // This makes the visual density adapt to the platform that you run
        // the app on. For desktop platforms, the controls will be smaller and
        // closer together (more dense) than on mobile platforms.
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  @override
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    return Scaffold(
      appBar: AppBar(
        // Here we take the value from the MyHomePage object that was created by
        // the App.build method, and use it to set our appbar title.
        title: Text(widget.title),
      ),
      body: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Expanded(
            flex: 1,
            child: SingleChildScrollView(
              scrollDirection: Axis.vertical,
              padding: EdgeInsets.all(5),
              child: Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children:
                    ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '10']
                        .map(
                          (e) => Container(
                            height: 30,
                            child: Text(e),
                          ),
                        )
                        .toList(),
              ),
            ),
          ),
          Expanded(
              flex: 15,
              child: Row(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Expanded(
                    flex: 0,
                    
                    child: Column(
                      mainAxisAlignment: MainAxisAlignment.spaceBetween,
                      children:
                          ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10']
                              .map(
                                (e) => Container(
                                  height: 30,
                                  child: Text(e),
                                ),
                              )
                              .toList(),
                    ),
                  ),
                  Expanded(
                    flex: 25,
                    child: Container(
                      child: Text('Your widget goes here'),
                    ),
                  ),
                ],
              ),),
        ],
      ),
    );
  }
}

Widget printGrid(BuildContext context) {
  return GridView.count(
    // Setting the scroll direction
    scrollDirection: Axis.horizontal,
    // Setting the number of row
    crossAxisCount: 5,
    children: List.generate(100, (index) {
      return Center(
        child: Text(
          "$index",
          style: Theme.of(context).textTheme.headline5,
        ),
      );
    }),
  );
}

Widget printHeader(BuildContext context) {
  return ListView(
    scrollDirection: Axis.horizontal,
    children: List.generate(100, (index) {
      return Text(
        index.toString(),
        style: Theme.of(context).textTheme.headline5,
      );
    }),
  );
}

/* 
body: GridView.count(
          // Setting the scroll direction
          scrollDirection: Axis.horizontal,
          // Setting the number of row
          crossAxisCount: 1,
          children: List.generate(10, (index) {
            return Wrap(children: [
              Container(
                  color: Colors.blue,
                  child: Center(
                    child: Text(
                      "$index",
                      style: Theme.of(context).textTheme.bodyText1,
                    ),
                  ))
            ]);
          }),
        ));
*/