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implement cherrypick_flutter library

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Sergey Penkovsky
2025-05-02 11:42:32 +03:00
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# Miscellaneous
*.class
*.log
*.pyc
*.swp
.DS_Store
.atom/
.buildlog/
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migrate_working_dir/
# IntelliJ related
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# The .vscode folder contains launch configuration and tasks you configure in
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# is commented out by default.
#.vscode/
# Flutter/Dart/Pub related
# Libraries should not include pubspec.lock, per https://dart.dev/guides/libraries/private-files#pubspeclock.
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**/doc/api/
.dart_tool/
build/

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# This file tracks properties of this Flutter project.
# Used by Flutter tool to assess capabilities and perform upgrades etc.
#
# This file should be version controlled and should not be manually edited.
version:
revision: "4cf269e36de2573851eaef3c763994f8f9be494d"
channel: "stable"
project_type: package

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## 0.0.1
* TODO: Describe initial release.

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# CherryPick Flutter
`cherrypick_flutter` is a Flutter library that allows access to the root scope through the context using `CherryPickProvider`. This package is designed to provide a simple and convenient way to interact with the root scope within the widget tree.
## Installation
Add `cherrypick_flutter` to your `pubspec.yaml`:
```yaml
dependencies:
cherrypick_flutter: ^1.0.0
```
Then run `flutter pub get` to install the package.
## Usage
### Importing the Package
To start using `cherrypick_flutter`, import it into your Dart code:
```dart
import 'package:cherrypick_flutter/cherrypick_flutter.dart';
```
### Providing State with `CherryPickProvider`
Use `CherryPickProvider` to wrap the part of the widget tree that requires access to the provided state.
```dart
import 'package:flutter/material.dart';
import 'package:cherrypick_flutter/cherrypick_flutter.dart';
void main() {
runApp(
CherryPickProvider(
rootScope: yourRootScopeInstance,
child: MyApp(),
),
);
}
```
### Accessing State
To access the state provided by `CherryPickProvider`, use the `of` method. This is typically done in the `build` method of your widgets.
```dart
class MyWidget extends StatelessWidget {
@override
Widget build(BuildContext context) {
final rootScope = CherryPickProvider.of(context).rootScope;
return Text('Current state: ${rootScope.someStateValue}');
}
}
```
### Updating State
The `CherryPickProvider` will automatically update its dependents when its state changes. Ensure to override the `updateShouldNotify` method to specify when notifications should occur, as shown in the provided implementation.
## Example
Here is a simple example showing how to implement and use the `CherryPickProvider`.
```dart
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
final rootScope = CherryPickProvider.of(context).rootScope;
return MaterialApp.router(
routerDelegate: rootScope.resolve<AppRouter>().delegate(),
routeInformationParser:
rootScope.resolve<AppRouter>().defaultRouteParser(),
);
}
}
```
## Contributing
We welcome contributions from the community. Please open issues and pull requests if you have ideas for improvements.
## License
This project is licensed under the Apache License 2.0.

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include: package:flutter_lints/flutter.yaml
# Additional information about this file can be found at
# https://dart.dev/guides/language/analysis-options

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library cherrypick_flutter;
export 'src/cherrypick_provider.dart';

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import 'package:cherrypick/cherrypick.dart';
import 'package:flutter/widgets.dart';
class CherryPickProvider extends InheritedWidget {
// Holds a reference to the root scope object
final Scope rootScope;
// Constructor for CherryPickProvider. Initializes with a required rootScope and child widget.
const CherryPickProvider({
super.key,
required this.rootScope,
required super.child,
});
// Method to access the nearest CherryPickProvider instance from the context
static CherryPickProvider of(BuildContext context) {
// Looks up the widget tree for an instance of CherryPickProvider
final CherryPickProvider? result =
context.dependOnInheritedWidgetOfExactType<CherryPickProvider>();
// Assert to ensure a CherryPickProvider is present in the context
assert(result != null, 'No CherryPickProvider found in context');
return result!;
}
// Determines whether the widget should notify dependents when it changes
@override
bool updateShouldNotify(CherryPickProvider oldWidget) {
// Notify if the rootScope has changed
return rootScope != oldWidget.rootScope;
}
}

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name: cherrypick_flutter
description: "A new Flutter package project."
version: 1.0.0
homepage: https://pese-git.github.io/cherrypick-site/
documentation: https://github.com/pese-git/cherrypick/wiki
repository: https://github.com/pese-git/cherrypick
issue_tracker: https://github.com/pese-git/cherrypick/issues
environment:
sdk: ^3.5.2
flutter: ">=1.17.0"
dependencies:
flutter:
sdk: flutter
cherrypick: any
dev_dependencies:
flutter_test:
sdk: flutter
flutter_lints: ^4.0.0
# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec
# The following section is specific to Flutter packages.
flutter:
# To add assets to your package, add an assets section, like this:
# assets:
# - images/a_dot_burr.jpeg
# - images/a_dot_ham.jpeg
#
# For details regarding assets in packages, see
# https://flutter.dev/to/asset-from-package
#
# An image asset can refer to one or more resolution-specific "variants", see
# https://flutter.dev/to/resolution-aware-images
# To add custom fonts to your package, add a fonts section here,
# in this "flutter" section. Each entry in this list should have a
# "family" key with the font family name, and a "fonts" key with a
# list giving the asset and other descriptors for the font. For
# example:
# fonts:
# - family: Schyler
# fonts:
# - asset: fonts/Schyler-Regular.ttf
# - asset: fonts/Schyler-Italic.ttf
# style: italic
# - family: Trajan Pro
# fonts:
# - asset: fonts/TrajanPro.ttf
# - asset: fonts/TrajanPro_Bold.ttf
# weight: 700
#
# For details regarding fonts in packages, see
# https://flutter.dev/to/font-from-package

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# melos_managed_dependency_overrides: cherrypick
dependency_overrides:
cherrypick:
path: ../cherrypick

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import 'package:flutter_test/flutter_test.dart';
void main() {
test('adds one to input values', () {
expect(1, 1);
});
}

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melos.yaml
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sdkPath: .fvm/flutter_sdk
packages:
- cherrypick
- cherrypick
- cherrypick_flutter