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flutter/flutter-concurrency

Flutterで長時間実行タスクをバックグラウンドスレッドで実行します。

flutter-concurrency とは?

このスキルは、Flutterアプリケーションにおいて、重い計算やI/O処理などの長時間実行タスクをメインスレッド(UIスレッド)から分離し、バックグラウンドスレッドで安全に実行する方法を提供します。Flutterのシングルスレッドモデルでは、メインスレッドで時間のかかる処理を行うとUIの応答性が低下し、アニメーションのカクつきやアプリのフリーズを引き起こす可能性があります。このスキルは、DartのIsolateや`compute`関数といった並行処理機能を活用し、タスクを非同期に処理することで、UIの滑らかさを維持しながら効率的な処理を実現します。また、Flutter/Dart環境にネイティブに統合されているため、追加のパッケージや複雑な設定は不要で、簡単なコード変更で実装できます。開発者はこのスキルを用いて、画像処理、データベースクエリ、暗号化処理などの負荷の高い処理をUIをブロックせずに実行でき、ユーザー体験を向上させることができます。

対応~Claude Code~Codex CLI~Cursor
npx skills add https://github.com/flutter/skills/tree/main/skills/flutter-concurrency

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ドキュメント

flutter-concurrency は何をしますか?

Flutterで長時間実行タスクをバックグラウンドスレッドで実行します。

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

flutter/flutter-accessibility

Configure your Flutter app to support assistive technologies like Screen Readers

flutter/flutter-accessibility-audit

Triggers an accessibility scan through the widget_inspector and automatically adds Semantics widgets or missing labels to the source code.

flutter/flutter-adding-home-screen-widgets

Adds home screen widgets to a Flutter app for Android and iOS. Use when providing glanceable app information or quick actions on the device home screen.

flutter/flutter-add-integration-test

Configures Flutter Driver for app interaction and converts MCP actions into permanent integration tests. Use when adding integration testing to a project, exploring UI components via MCP, or automating user flows with the integration_test package.

flutter/flutter-add-widget-preview

Adds interactive widget previews to the project using the previews.dart system. Use when creating new UI components or updating existing screens to ensure consistent design and interactive testing.

flutter/flutter-add-widget-test

Implement a component-level test using `WidgetTester` to verify UI rendering and user interactions (tapping, scrolling, entering text). Use when validating that a specific widget displays correct data and responds to events as expected.

flutter/flutter-animating-apps

Implements animated effects, transitions, and motion in a Flutter app. Use when adding visual feedback, shared element transitions, or physics-based animations.

flutter/flutter-animation

Add animated effects to your Flutter app

flutter/flutter-apply-architecture-best-practices

Architects a Flutter application using the recommended layered approach (UI, Logic, Data). Use when structuring a new project or refactoring for scalability.

flutter/flutter-app-size

Measure and reduce the size of the Flutter app bundle, APK, or IPA

flutter/flutter-architecting-apps

Architects a Flutter application using the recommended layered approach (UI, Logic, Data). Use when structuring a new project or refactoring for scalability.

flutter/flutter-architecture

Use the Flutter team's recommended app architecture

flutter/flutter-building-forms

Builds Flutter forms with validation and user input handling. Use when creating login screens, data entry forms, or any multi-field user input.

flutter/flutter-building-layouts

Builds Flutter layouts using the constraint system and layout widgets. Use when creating or refining the UI structure of a Flutter application.

flutter/flutter-building-plugins

Builds Flutter plugins that provide native interop for other apps to use. Use when creating reusable packages that bridge Flutter with platform-specific functionality.

flutter/flutter-build-responsive-layout

Use `LayoutBuilder`, `MediaQuery`, or `Expanded/Flexible` to create a layout that adapts to different screen sizes. Use when you need the UI to look good on both mobile and tablet/desktop form factors.

flutter/flutter-caching

Cache data in a Flutter app

flutter/flutter-caching-data

Implements caching strategies for Flutter apps to improve performance and offline support. Use when retaining app data locally to reduce network requests or speed up startup.

flutter/flutter-databases

Work with databases in a Flutter app

flutter/flutter-embedding-native-views

Embeds native Android, iOS, or macOS views into a Flutter app. Use when integrating complex native components like maps or web views.

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