fast_flows 0.0.3

A light, modern and powerful Flutter framework combining state management, dependency injection, and route management - inspired by GetX but with a cleaner API.

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

0.0.3 - 2026-04-20

Added

• Snackbar System - GetX-like snackbar with Flow.snackbar() and Flow.rawSnackbar():
  • Customizable position (top/bottom) with SnackPosition
  • Customizable style (floating/grounded) with SnackStyle
  • Icon support with pulse animation
  • Progress indicator support
  • Custom background colors and gradients
  • Action button support
  • Dismiss control with Flow.closeAllSnackbars()
  • SnackbarController for programmatic control
• Dialog System - GetX-like dialogs with Flow.dialog() and Flow.defaultDialog():
  • Custom dialog widgets with Flow.dialog()
  • Pre-built alert dialogs with Flow.defaultDialog()
  • Configurable barrier color and dismissibility
  • Custom transition animations
  • Close all dialogs with Flow.closeAllDialogs()
• Flow.context - Access current BuildContext from anywhere
• Flow.isDialogOpen - Check if a dialog is currently open
• Enhanced RxList API:
  • isEmpty, isNotEmpty properties
  • first, last accessors
  • firstWhereOrNull(), lastWhereOrNull() methods
  • map(), where() transformation methods
  • sort(), reversed() operations
  • addNonNull(), addIf(), addAllIf() conditional methods
  • assign(), assignAll() replacement methods
  • contains(), indexOf() utility methods
• Enhanced RxWorkers:
  • ever() - Execute callback on every value change
  • once() - Execute callback only on first change
  • interval() - Execute callback after delay of no changes
  • debounce() - Execute callback after specified delay
  • everAll() - Listen to multiple observables
  • workers() - Container to manage multiple workers
  • Worker class for subscription management
  • Extension methods onChanged() and onFirstChange()
• Flow.refresh() - Trigger UI rebuild on demand
• New Features Test Page - Example page demonstrating all new features
• Comprehensive test suite with 281 tests covering all core modules

Changed

• Moved snackbar and dialog functionality into Flow core class
• Enhanced Flow class with context access and dialog state tracking
• Updated example app with new features test page
• All tests passing (281/281)

Fixed

• RxList remove() now returns bool indicating success
• RxList removeAt() now returns the removed element
• Added Flow.reset() method for testing support
• Snackbar positioning - now correctly displays at top/bottom
• Dialog size constraint - custom dialogs now have max width of 400px
• Various lint warnings and info messages

Performance

• Zero boilerplate - no StreamControllers, ChangeNotifiers, or InheritedWidgets required
• Efficient widget rebuilding with FlxValue for single-value observation
• Single-level observation design for optimal performance

0.0.2 - 2026-04-17

Added

• Snackbar System - GetX-like snackbar with Flow.snackbar() and Flow.rawSnackbar():
  • Customizable position (top/bottom) with SnackPosition
  • Customizable style (floating/grounded) with SnackStyle
  • Icon support with pulse animation
  • Progress indicator support
  • Custom background colors and gradients
  • Action button support
  • Dismiss control with Flow.closeAllSnackbars()
  • SnackbarController for programmatic control
• Dialog System - GetX-like dialogs with Flow.dialog() and Flow.defaultDialog():
  • Custom dialog widgets with Flow.dialog()
  • Pre-built alert dialogs with Flow.defaultDialog()
  • Configurable barrier color and dismissibility
  • Custom transition animations
  • Close all dialogs with Flow.closeAllDialogs()
• Flow.context - Access current BuildContext from anywhere
• Flow.isDialogOpen - Check if a dialog is currently open
• Enhanced RxList API:
  • isEmpty, isNotEmpty properties
  • first, last accessors
  • firstWhereOrNull(), lastWhereOrNull() methods
  • map(), where() transformation methods
  • sort(), reversed() operations
  • addNonNull(), addIf(), addAllIf() conditional methods
  • assign(), assignAll() replacement methods
  • contains(), indexOf() utility methods
• Enhanced RxWorkers:
  • ever() - Execute callback on every value change
  • once() - Execute callback only on first change
  • interval() - Execute callback after delay of no changes
  • debounce() - Execute callback after specified delay
  • everAll() - Listen to multiple observables
  • workers() - Container to manage multiple workers
  • Worker class for subscription management
  • Extension methods onChanged() and onFirstChange()
• Flow.refresh() - Trigger UI rebuild on demand
• New Features Test Page - Example page demonstrating all new features
• Comprehensive test suite with 281 tests covering all core modules

Changed

• Moved snackbar and dialog functionality into Flow core class
• Enhanced Flow class with context access and dialog state tracking
• Updated example app with new features test page
• All tests passing (281/281)

Fixed

• RxList remove() now returns bool indicating success
• RxList removeAt() now returns the removed element
• Added Flow.reset() method for testing support
• Various lint warnings and info messages

Performance

• Zero boilerplate - no StreamControllers, ChangeNotifiers, or InheritedWidgets required
• Efficient widget rebuilding with FlxValue for single-value observation
• Single-level observation design for optimal performance

0.0.1 - 2026-04-17

Added

• Initial release of Fast Flows framework
• Dependency Injection system with Flow.put, Flow.find, Flow.isRegistered, and Flow.delete
• Reactive State Management with Rx types:
  • Rx<T>, Rxn<T> for generic reactive wrappers
  • RxBool, RxInt, RxDouble, RxString for primitive types
  • RxList<T>, RxMap<K,V> for collections
  • .obs extension for easy reactive type creation
• Route Management with Flow.to, Flow.toNamed, Flow.back, Flow.off, Flow.offAll
• FlowMaterialApp widget for app configuration with theme support
• FlowPage for named route definitions with transition support
• FlowController base class with lifecycle methods (onInit, onClose)
• Flx reactive widget builder
• FlxValue optimized single-value reactive widget
• Logic/State/View architecture pattern support
• Example app demonstrating all features:
  • Counter page with reactive state
  • Home page with UserData editing and theme switching
  • Detail page with route parameter receiving
  • Performance test page with Flx optimization
  • Light/Dark theme switching via global ThemeController
  • Custom app icon configuration
• Comprehensive documentation:
  • README.md (English)
  • README_cn.md (Chinese)
  • CHANGELOG.md
  • CHANGELOG_cn.md
• Multi-platform support:
  • Android
  • iOS
  • Web
  • Windows
  • macOS
  • Linux

Changed

• Package renamed from liteflows to fast_flows to avoid naming conflicts on pub.dev
• Optimized route argument passing to preserve settings.arguments
• Updated default theme colors to cyan/teal (0xFF26C6DA) for brand consistency
• Improved AppBar colors with darker shades for better contrast
• Enhanced example app with editable UserData model
• Refined API design based on GetX inspiration with cleaner syntax

Fixed

• Route arguments not being passed correctly when using FlowMaterialApp
• Theme switching not reflecting in UI
• Type casting issues with nullable UserData parameters
• Static analysis warnings and info messages

Performance

• Single-level observation design for optimal performance
• Zero boilerplate - no StreamControllers, ChangeNotifiers, or InheritedWidgets required
• Efficient widget rebuilding with FlxValue for single-value observation

[Unreleased]

Planned

• Additional Rx operators and utilities
• Middleware support for route navigation
• Enhanced DevTools integration
• More comprehensive test coverage
• Additional example templates

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Acknowledgments:

This project is inspired by the excellent work on GetX. We want to express our gratitude to Jonny Borges and the GetX community for pioneering reactive state management and dependency injection in Flutter.