https://github.com/davidmarne/functional_flutter

Tools for composing flutter widget trees in a functional manner.
https://github.com/davidmarne/functional_flutter

flutter functional functional-programming

Last synced: 5 days ago
JSON representation

Tools for composing flutter widget trees in a functional manner.

• Host: GitHub
• URL: https://github.com/davidmarne/functional_flutter
• Owner: davidmarne
• License: mit
• Created: 2018-02-18T21:15:55.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2018-02-22T02:11:49.000Z (over 6 years ago)
• Last Synced: 2024-10-23T04:42:33.580Z (25 days ago)
• Topics: flutter, functional, functional-programming
• Language: Dart
• Size: 30.3 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE.md

Awesome Lists containing this project

README

        
[![Pub](https://img.shields.io/pub/v/functional_flutter.svg)](https://pub.dartlang.org/packages/functional_flutter)

[![codecov.io](http://codecov.io/github/davidmarne/functional_flutter/coverage.svg?branch=master)](http://codecov.io/github/davidmarne/functional_flutter?branch=master)

# functional_flutter

Tools for composing flutter widget trees in a functional manner. Inspired by [recompose](https://github.com/acdlite/recompose).

# Why

Your widget tree should be a function of your applications state, so why would you write widgets as classes and not functions?

functional_flutter encourages you to separate your state and properties from your widget definition. Rather than have a class that has properties and a build function implemented, you can lift the properties into a class and write `FunctionalWidgets` that take a properties class and return a widget.

Following this pattern helps make your application easier to reason about and it decreases the amount of widgets in the tree.

Properties should always be a value type. I suggest you leverage built_value or meta's @immutable annotation for your prop classes.

# If everything is a pure functional widget how can my widgets have state

The withState widget enhancer lets you lift state into a functional wrapper. See the [example](/example/example.dart).

The withBuiltReduxStore enhancer also lets you subscribe to state

from your built_redux store if you are using built_redux as a 

state management solution.