RedBrogdon

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Row(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [

RedBrogdon

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

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  static const String _title = 'Flutter Code Sample';

  @override
  Widget build(BuildContext context) {

RedBrogdon

import 'dart:ui' as ui;
import 'package:flutter/material.dart';

void main() {
  runApp(MaterialApp(
    debugShowCheckedModeBanner: false,
    home: AnimatedAlignDemo(),
    theme: ThemeData.dark(),
  ));
}

RedBrogdon

import 'package:flutter/material.dart';

void main() {
  runApp(TasksApp());
}

class Task {
  bool done;
  String description;
  Task(this.done, this.description);

RedBrogdon

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(

RedBrogdon

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';

class MyWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Column(
      mainAxisSize: MainAxisSize.min,
      crossAxisAlignment: CrossAxisAlignment.stretch,

RedBrogdon

import 'package:flutter_web/material.dart';
import 'package:flutter_web_ui/ui.dart' as ui;

void main() async {
  await ui.webOnlyInitializePlatform();
  
  runApp(
    MaterialApp(
      theme: ThemeData(
        primaryColor: Colors.indigo,

RedBrogdon

<!-- Copyright 2011 the Dart project authors. All rights reserved.
     Use of this source code is governed by a BSD-style license
     that can be found in the LICENSE file. -->

<h2>This is some HTML, just in case.</h2
>

RedBrogdon

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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