Create application for multiple platforms with a single codebase
Features
- Near native performance
- Optimized for UI Development
- Supports Ahead of Time Compilation and Just In Time Compilation
Core Concepts
- Everything is a widget
Toolchain Components
- Dart SDK
- Flutter Engine
- Development tools
- IDEs - vscode
- Flutter Cli
- Flutter Dev Tools . Platforms
- Web
- Android
- IOS
- MacOs
- Windows
- Linux
Flutter Utilities
- Flutter Devtools
- Flutter Inspector
- Dart Analyzer
- Flutter doctor
- Hot reload
Flutter Layers
- Framework - prebuilt widget, animation, rendering system
- Engine (C++) - low level rendering support using Google Sky
- Embedder - machine specific embeddings
Flutter Engine
- Runtime Environment that renders flutter apps
- Handles drawing of new frames
- manages textures
- deals with platform specific graphics
- Interfaces with the OS to access input services
Widgets
Stateless Widget
Data Types
- Numbers (int, double)
- Strings (String)
- Booleans (bool)
- Records ((value1, value2))
- Lists (List, also known as array)
- Sets (Set)
- Maps (Map)
- Runes (Runes; often replaced by the characters API)
- Symbols (Symbol)
- null (Null)