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Fair is a lightweight package for Flutter, which can be used to update widget tree and state dynamically. This package is still at an early stage.

We create Fair so we can dispatch any pages changes to users as bundle(s), the way similar to React Native. With Flutter Fair integrated, you can publish your pages without waiting for the next release date of your App. Fair provides standard widget and some logic plugins, it can be used as a new dynamic page or as part of existing Flutter page.

Use Flutter Fair require few steps.

step1：download fair project source code

It is recommended to download fair to the local and dependencies on the relative path.

The download method is as follows:

git clone https://github.com/wuba/fair.git

step2：Add dependency inside pubspec.yaml

Assuming that the fair project and your own project are in the same folder:

# add Fair dependency
dependencies:
  fair: 2.4.0

# add compiler dependency
dev_dependencies:
  build_runner: ^2.0.0
  fair_compiler:
    path: ../fair/compiler
 
# switch "fair_version" according to the local Flutter SDK version.
# Flutter SDK 2.5.x(2.5.0、2.5.1、2.5.2、2.5.3) -> fair_version: 2.5.0
# Flutter SDK 2.0.6 -> fair_version: 2.0.6+1
# Flutter SDK 1.22.6 -> fair_version: 1.22.6
dependency_overrides:
  fair_version: 2.0.6+1

step3：Wrap your app with FairApp Widget

void main() {
  WidgetsFlutterBinding.ensureInitialized();

  FairApp.runApplication(
    _getApp(),
    plugins: {
    },
  );
}

dynamic _getApp() => FairApp(
  modules: {
  },
  delegate: {
  },
  child: MaterialApp(
    home: FairWidget(
            name: 'DynamicWidget',
            path: 'assets/bundle/lib_src_page_dynamic_widget.fair.json',
            data: {"fairProps": json.encode({})}),
  ),
);

step4：Import a dynamic widget as FairWidget

FairWidget(
  name: 'DynamicWidget',
  path: 'assets/bundle/lib_src_page_dynamic_widget.fair.json',
  data: {"fairProps": json.encode({})}),

For more details, please refer to https://fair.58.com

• Major release plan
  • null-safe version support, expected to be launched on April 22 ✅
  • Flutter 2.8.0 version adaptation, expected to be launched in mid-May
  • Flutter 2.10.0 version adaptation, is expected to be launched in early June
  • IDE syntax detection and hint plugin
  • Rich syntactic sugar
• Hot update platform
  • Dart Server project construction ✅
  • Flutter Web project construction ✅
  • Patch/resource management
  • Project management
  • Mobile Update&Download
• Online dynamic
  • Flutter Web project construction ✅
  • Dart Server project construction ✅
  • ActionEdit
  • Code editing
  • Component editing
  • Page editing
  • Engineering editor
  • Flutter effect preview
  • Fair DSL preview

Thanks goes to these wonderful people (emoji key):

Wu 💻 📖	Penta 💻 📖	haijun 💻 📖	陈有余 💻 📖	yangyang 💻	wan 💻	bujie 💻	Kc 💻
gongpengyang 💻	qixu 💻	waynesonic 💻	paozhuanyinyu 💻	alzzzz 💻 📖

This project follows the all-contributors specification. Contributions of any kind welcome!

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