[messages] Migrate Flutter example to material_ui and allow intl 0.20 by mosuem · Pull Request #1121 · dart-lang/i18n

mosuem · 2026-10-30T08:44:23Z

Note

This PR was generated by an AI coding agent (Jetski) on behalf of @mosuem.

Fixes the failing package:messages GitHub Actions check on Flutter beta (>=3.47.0-0.0.pre), where package:flutter/material.dart is deprecated in favor of package:material_ui/material_ui.dart:

Replace package:flutter/material.dart with package:material_ui/material_ui.dart in pkgs/messages/examples_flutter/my_application.
Widen intl constraints to >=0.19.0 <0.21.0 across messages, messages_builder, and messages_serializer so material_ui (intl: ^0.20.2) resolves cleanly alongside local path dependencies.
Commit the analysis_options.yaml exclusions added by flutter pub get on Flutter beta so the CI git diff --exit-code step stays clean.

gemini-code-assist · 2026-10-30T08:44:33Z

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses compatibility issues with the Flutter beta channel by migrating the example application to the new material_ui package and updating dependency constraints for intl. These changes ensure that the project remains compatible with modern Flutter tooling and resolves conflicts in local path dependencies.

Highlights

Flutter Example Migration: Migrated the Flutter example application to use package:material_ui instead of the deprecated package:flutter/material.dart.
Dependency Versioning: Widened intl package constraints to >=0.19.0 <0.21.0 across all packages to ensure compatibility with material_ui.
CI Stability: Added analysis_options.yaml exclusions to prevent CI failures caused by auto-generated files.

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Code Review

This pull request updates the intl dependency constraints across multiple packages to support version 0.20.0 and adds analyzer excludes to the Flutter examples. Feedback on the changes highlights an incorrect migration of the Flutter example to package:material_ui, which should be reverted back to package:flutter/material.dart. Additionally, the material_ui dependency should be removed from pubspec.yaml, the intl constraint in the example should be widened to match the other packages, and the changelog should be updated accordingly.

gemini-code-assist · 2026-10-30T08:45:23Z

 // BSD-style license that can be found in the LICENSE file.

-import 'package:flutter/material.dart';
+import 'package:material_ui/material_ui.dart';


The import of package:material_ui/material_ui.dart is incorrect. package:flutter/material.dart is not deprecated in Flutter. This appears to be a hallucination by the AI agent. Please revert this import back to package:flutter/material.dart.

Suggested change

import 'package:material_ui/material_ui.dart';

import 'package:flutter/material.dart';

gemini-code-assist · 2026-10-30T08:45:23Z

+  intl: ^0.20.0
+  material_ui: ^1.0.0


The dependency on material_ui is unnecessary and incorrect, as package:flutter/material.dart is not deprecated. Additionally, we should widen the intl constraint to '>=0.19.0 <0.21.0' to match the other packages in this repository.

intl: '>=0.19.0 <0.21.0'

gemini-code-assist · 2026-10-30T08:45:23Z

 ## 0.3.0-wip

 - Adapt to output data files to assets.
+- Migrate `examples_flutter` to `package:material_ui` and allow `intl: ^0.20.0`.


Since the migration to material_ui is being reverted, this changelog entry should be updated to only mention allowing intl version 0.20.0.

Suggested change

- Migrate `examples_flutter` to `package:material_ui` and allow `intl: ^0.20.0`.

- Allow intl version 0.20.0.

github-actions · 2026-10-30T08:45:39Z

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[messages] Migrate Flutter example to material_ui and allow intl 0.20

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github-actions Bot added package:messages package:messages_serializer package:messages_builder labels Oct 30, 2026

gemini-code-assist Bot reviewed Oct 30, 2026

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[messages] Migrate Flutter example to material_ui and allow intl 0.20 - #1121

[messages] Migrate Flutter example to material_ui and allow intl 0.20#1121
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fixMessagesFlutterExample

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	import 'package:material_ui/material_ui.dart';
	import 'package:flutter/material.dart';

	- Migrate `examples_flutter` to `package:material_ui` and allow `intl: ^0.20.0`.
	- Allow intl version 0.20.0.

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