Flutter

Flutter is Google's open-source SDK for building cross-platform applications from a single Dart codebase. It targets mobile, web, desktop, and embedded platforms with native performance and pixel-perfect UI control.

Key Features

• Cross-platform development - Deploy to iOS, Android, web, Windows, macOS, Linux, and Fuchsia
• Hot reload - See code changes instantly without losing application state
• Native performance - Hardware-accelerated rendering with Skia and Impeller engines
• Rich widget ecosystem - Material Design and Cupertino component libraries
• Custom UI control - Access to every pixel with composable widget architecture
• Native interop - FFI and platform channels for accessing device-specific APIs

Installation

# Clone Flutter repository
git clone https://github.com/flutter/flutter.git
export PATH="$PATH:`pwd`/flutter/bin"

# Verify installation
flutter doctor

# Create new project
flutter create my_app
cd my_app

Basic Usage

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(title: Text('Flutter App')),
        body: Center(
          child: Text('Hello, World!'),
        ),
      ),
    );
  }
}

# Run on connected device
flutter run

# Build for production
flutter build apk  # Android
flutter build ios  # iOS
flutter build web  # Web

Notable Details

License: BSD-3-Clause
Language: Dart
Community: 175K+ GitHub stars, extensive package ecosystem on pub.dev
Backed by: Google with active development and LTS releases