Minimal Flutter Apps to Get Started

Last reviewed in July 2019 by Frank Treacy

Every time I do a flutter create project I get the default “counter” sample app full of comments.

While it's great for the very first time, I now want to get up and running with a minimal base app that fits in my screen.

Here are a few options to copy-paste into lib/main.dart.

Bare bones app

// lib/main.dart

import 'package:flutter/widgets.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(context) => Center(
    child: Text('Hello Flutter!', textDirection: TextDirection.ltr)
  );
}

Can't get smaller than this!

See it live:



Material-style minimal app

// lib/main.dart

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(context) {
    return MaterialApp(
      home: Scaffold(
        body: Center(
          child: Text('Hello World'),
        ),
      ),
    );
  }
}

See it live:



Minimal stateful app

import 'package:flutter/material.dart';

main() => runApp(MinimalStatefulApp());

class MinimalStatefulApp extends StatefulWidget {
  @override
  _MinimalState createState() => _MinimalState();
}

class _MinimalState extends State<MinimalStatefulApp> {

  int _counter = 0;

  @override
  Widget build(BuildContext context) {
    return GestureDetector(
      onDoubleTap: () => setState(() => _counter++),
      child: Center(
        child: Text(
          'Counter: $_counter',
          textDirection: TextDirection.ltr,
        ),
      ),
    );
  }
}

See it live (double tap to increment):



Minimal stateful app (with flutter_hooks)

// lib/main.dart

import 'package:flutter/widgets.dart';
import 'package:flutter_hooks/flutter_hooks.dart';

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

class MyApp extends HookWidget {
  @override
  Widget build(context) {
    final counter = useState(0);
    return GestureDetector(
      onDoubleTap: () => counter.value++,
      child: Center(
        child: Text(
          'Counter: ${counter.value}',
          textDirection: TextDirection.ltr,
        ),
      ),
    );
  }
}

It uses hooks which remove the boilerplate of a classic StatefulWidget. Make sure you add the flutter_hooks dependency to pubspec.yaml!

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