frame 1.0.0

  • Readme
  • Changelog
  • Installing
  • 46

frame #

A set of utilities that allow you to easily pass a data Model from a parent Widget down to it's descendants.

This Library provides two main classes:

  • The Provider Widget. If you need to pass a Store deep down your Widget hierarchy, you can wrap your Store in a Provider Widget. This will make the Model available to all descendant Widgets.
  • The StateWidget Widget. Use this Widget to find the appropriate Store in the Widget tree. It will automatically rebuild whenever the Model notifies that change has taken place.

Examples #

  • Counter App - Introduction to the tools provided by frame.

Usage #

Let's demo the basic usage with the all-time favorite: A counter example!

class Counter extends ChangeNotifier {
  int value = 0;

  void increment() {
    value += 1;

class Store {
  final counter = Counter();

main() => runApp(Provider(
      store: Store(),
      child: MyApp(),

class MyApp extends StatelessWidget {
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Frame Demo',
      theme: ThemeData(
      home: MyHomePage(),

class MyHomePage extends StatelessWidget {
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Frame Demo Home Page'),
      body: Center(
        child: Column(
          children: <Widget>[
            Text('You have pushed the button this many times:'),
              state: (store) => store.counter,
              builder: (context, child, counter) => Text(
                style: Theme.of(context).textTheme.display1,
      floatingActionButton: FloatingActionButton(
        onPressed: () =>
            StateWidget.of(context, (store) => store.counter).increment(),
        tooltip: 'Increment',
        child: Icon(Icons.add),

Contributors #

Changelog #

1.0.0 #

  • Initial version

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

  frame: ^1.0.0

2. Install it

You can install packages from the command line:

with Flutter:

$ flutter pub get

Alternatively, your editor might support flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:frame/frame.dart';
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Learn more about scoring.

We analyzed this package on Jan 25, 2020, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.7.0
  • pana: 0.13.4
  • Flutter: 1.12.13+hotfix.5

Health suggestions

Fix lib/frame.dart. (-0.50 points)

Analysis of lib/frame.dart reported 1 hint:

line 31 col 10: 'ancestorInheritedElementForWidgetOfExactType' is deprecated and shouldn't be used. Use getElementForInheritedWidgetOfExactType instead. This feature was deprecated after v1.12.1..

Maintenance suggestions

Maintain an example. (-10 points)

Create a short demo in the example/ directory to show how to use this package.

Common filename patterns include main.dart, example.dart, and frame.dart. Packages with multiple examples should provide example/

For more information see the pub package layout conventions.

The package description is too short. (-9 points)

Add more detail to the description field of pubspec.yaml. Use 60 to 180 characters to describe the package, what it does, and its target use case.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.1.0 <3.0.0
flutter 0.0.0
Transitive dependencies
collection 1.14.11 1.14.12
meta 1.1.8
sky_engine 0.0.99
typed_data 1.1.6
vector_math 2.0.8
Dev dependencies