[various] Migrate example Radio groups to new RadioGroup API #10155

alexskobozev · 2025-10-01T10:04:53Z

This PR updates multiple package example apps to stop using deprecated groupValue and onChanged on individual Radio widgets and instead use the new RadioGroup<T> ancestor to manage the selected value and change handling.

Why

Flutter deprecated Radio.groupValue and Radio.onChanged in favor of RadioGroup, which centralizes selection state for related radios. The deprecation is currently reported across several examples in this repo (see linked issue for examples and affected packages). This PR resolves those warnings.

What changed (pattern applied across examples)

Wrap related Radio<T> widgets in a RadioGroup<T>(groupValue: ..., onChanged: ...).
Remove groupValue/onChanged from each Radio, leaving only value (+ its label UI).
- Example (from animations demo): old three Radio widgets each had groupValue/onChanged; now they are enclosed in a single RadioGroup<SharedAxisTransitionType> and the Radio children keep just their value.

Packages (examples) updated

animations
camera
camera_android
camera_android_camerax
camera_avfoundation
google_sign_in_web
two_dimensional_scrollables (both table_view and tree_view)

Screenshots

N/A (UI unchanged; only wiring of radios changed).

Links

Fixes: flutter/flutter#170915

Pre-Review Checklist

google-cla · 2025-10-01T10:04:59Z

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Refactors the `shared_axis_transition.dart` example to use a new `RadioGroup` widget. This removes the deprecated `groupValue` and `onChanged` properties from each individual `Radio` button

Refactors the camera example to use a new `RadioGroup` widget. This removes deprecated `groupValue` and `onChanged` properties from each individual `RadioListTile` and moves them to the parent `RadioGroup`.

Refactors the `camera_android_camerax` example to use a new `RadioGroup` widget. This removes the deprecated `groupValue` and `onChanged` properties from each individual `RadioListTile` and moves them to the parent `RadioGroup`.

Refactors the `camera_avfoundation` example to use a new `RadioGroup` widget. This removes deprecated `onChanged` logic from each `RadioListTile` and moves it to the parent `RadioGroup`.

Refactors the `google_sign_in_web` example to use a new `RadioGroup` widget. This removes the deprecated `groupValue` and `onChanged` properties from each individual `RadioListTile` and moves them to the parent `RadioGroup`.

Refactors the `two_dimensional_scrollables` example to use a new `RadioGroup` widget. This removes the deprecated `groupValue` and `onChanged` properties from each individual `Radio` button and moves them to the parent `RadioGroup`.

Removes `const` from `Text` widgets inside a `Row` that was not itself `const`, and adds `const` to the `Row` itself.

Adds `const` to constructors and curly braces to control flow statements to fix new lint warnings in the `table_explorer.dart` and `tree_explorer.dart` examples.

Formats the `main.dart` file in the example application to align with current project standards. This change primarily involves code formatting and does not alter any functionality.

… is if non null instead of lambda

…' into handle_deprecated_radio_examples

stuartmorgan-g

LGTM

(There's a version mismatch from the last merge, but this will still need a second review, so feel free to wait to resolve that until it has the second approval.)

# Conflicts: # packages/camera/camera_android/CHANGELOG.md # packages/camera/camera_android_camerax/CHANGELOG.md

reidbaker

LGTM, feel free to update the changelog/version conflicts and we can get this landed.

justinmc · 2025-10-21T22:25:37Z

@alexskobozev Sorry, this has gotten a merge conflict due to another PR landing, could you update it?

alexskobozev · 2025-10-22T06:52:23Z

@alexskobozev Sorry, this has gotten a merge conflict due to another PR landing, could you update it?

updated!

flutter/packages#10155)

flutter/packages@d113bbc...9ec29b6 2025-10-22 [email protected] [go_router] Support for top level `onEnter` callback. (flutter/packages#8339) 2025-10-22 [email protected] [go_router_builder] Ignore experimental features (flutter/packages#10275) 2025-10-22 [email protected] Roll Flutter from 2d34167 to 75004a6 (39 revisions) (flutter/packages#10279) 2025-10-22 [email protected] [ci]Adds mechanism for packages to opt in to batched release (flutter/packages#10237) 2025-10-22 [email protected] [tool] Change gradle-check logic to enforce alignment of java versions and a minimum (17) (flutter/packages#10206) 2025-10-22 [email protected] [various] Migrate example Radio groups to new RadioGroup API (flutter/packages#10155) 2025-10-22 [email protected] [mustache_template] Emoji support (flutter/packages#10110) 2025-10-22 [email protected] [image_picker] Fix typos in error messages for android (flutter/packages#10188) 2025-10-22 [email protected] [image_picker] Fix typos in error messages for platform interface (flutter/packages#10211) 2025-10-21 [email protected] [camera_avfoundation] Wrappers swift migration - part 1 (flutter/packages#10119) 2025-10-21 [email protected] [go_router_builder] expand supported versions of analyzer, build and source_gen (flutter/packages#10078) 2025-10-20 [email protected] Roll Flutter from 891d7d5 to 2d34167 (18 revisions) (flutter/packages#10268) If this roll has caused a breakage, revert this CL and stop the roller using the controls here: https://autoroll.skia.org/r/flutter-packages-flutter-autoroll Please CC [email protected] on the revert to ensure that a human is aware of the problem. To file a bug in Flutter: https://github.com/flutter/flutter/issues/new/choose To report a problem with the AutoRoller itself, please file a bug: https://issues.skia.org/issues/new?component=1389291&template=1850622 Documentation for the AutoRoller is here: https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

ekuleshov · 2025-10-24T14:50:15Z

packages/camera/camera/CHANGELOG.md


+* Updates examples to use the new RadioGroup API instead of deprecated Radio parameters.
 * Updates minimum supported SDK version to Flutter 3.29/Dart 3.7.
 * Updates README to reflect that only Android API 24+ is supported.


@alexskobozev @stuartmorgan-g this note in the changelog and updated readme seems to be out of sync with the sdk: ^3.7.0 constraint in the camera/pubspec.yaml.

This camera 0.11.2+1 plugin release shows up as Upgradable in a Flutter project that has sdk: 3.8.1 constraint (i.e. requires to support Android 21).

If the camera plugin dropped support for Android 21 - it should not be upgradable and maybe plugin's sdk constraint need to be bumped to Dart 3.9?

If you are going to comment on PRs instead of filing issues when you believe there's an issue, please use the relevant PR (which is #9851 here, not this one).

Your concern is addressed in the description of that PR:

people on older versions of Flutter, and supporting older versions of Android in their apps, will still get compatible versions, they just aren't the versions we are supporting now

This camera 0.11.2+1 plugin release shows up as Upgradable in a Flutter project that has sdk: 3.8.1 constraint (i.e. requires to support Android 21).

Yes, that is correct. 0.11.2+1 will work correctly in a project that supports Android 21.

If the camera plugin dropped support for Android 21 - it should not be upgradable

"Support" here refers to the camera plugin holistically, not the camera package specifically, and is not the same thing as "runs on". If someone files an issue today about an issue that happens when using camera* only on Android 21-23, we would close that issue saying that we no longer support Android <24, and thus, Android <24 is not supported.

We deliberately do not go into a lot of details about the specific runtime support matrix of each sub-package, because that's way to much information for the README, and the resolver will ensure that the right thing happens regardless. If someone really wants that level of detail, they can read the individual pubspecs.

@stuartmorgan-g I commented on this PR because it triggered the plugin release.

I realize that older platform plugins are pulled instead. Though for consistency with federated platform plugins the camera plugin might be better use the same sdk constraint because this note in the changelog is misleading about Android 21 support. The camera example project also has sdk 3.9 constraint.

@stuartmorgan-g I commented on this PR because it triggered the plugin release.

And I'm asking you to please not do that. The only reason I—the person who this comment was relevant to—saw this question is because I happened to have reviewed this PR. Meanwhile it's spamming a random contributor who has nothing to do with the thing you are asking about.

In general, it is a much better idea to report issues or potential issues via the issue tracker. There is a system for routing them to the right people, instead of just hoping that the right person sees the comment.

Though for consistency with federated platform plugins the camera plugin might be better use the same sdk constraint

Anyone maintaining a federated plugin is welcome to manage their constraints however they choose to. For our plugins, we follow our documented policy of not adding artificial restrictions.

github-actions bot added p: animations p: camera p: google_sign_in platform-android platform-ios platform-macos platform-web labels Oct 1, 2025

alexskobozev changed the title ~~Handle deprecated radio examples~~ [animations][camera][camera_android][camera_android_camerax][camera_avfoundation][google_sign_in_web][two_dimensional_scrollables] Migrate example Radio groups to new RadioGroup API Oct 1, 2025

alexskobozev marked this pull request as ready for review October 1, 2025 10:08

alexskobozev requested review from Piinks, bparrishMines, camsim99, hannah-hyj, hellohuanlin, mdebbar and vashworth as code owners October 1, 2025 10:08

alexskobozev added 7 commits October 1, 2025 14:20

[animations] Refactor Radio widgets in example

32a6914

Refactors the `shared_axis_transition.dart` example to use a new `RadioGroup` widget. This removes the deprecated `groupValue` and `onChanged` properties from each individual `Radio` button

[camera] Refactor Radio widgets in example

64064df

Refactors the camera example to use a new `RadioGroup` widget. This removes deprecated `groupValue` and `onChanged` properties from each individual `RadioListTile` and moves them to the parent `RadioGroup`.

[camera] Refactor Radio widgets in example

157a932

Refactors the camera example to use a new `RadioGroup` widget. This removes deprecated `groupValue` and `onChanged` properties from each individual `RadioListTile` and moves them to the parent `RadioGroup`.

[camera_avfoundation] Refactor Radio widgets in example

bc09c33

Refactors the `camera_avfoundation` example to use a new `RadioGroup` widget. This removes deprecated `onChanged` logic from each `RadioListTile` and moves it to the parent `RadioGroup`.

[google_sign_in_web] Refactor Radio widgets in example

dfc6124

Refactors the `google_sign_in_web` example to use a new `RadioGroup` widget. This removes the deprecated `groupValue` and `onChanged` properties from each individual `RadioListTile` and moves them to the parent `RadioGroup`.

alexskobozev force-pushed the handle_deprecated_radio_examples branch from 4053511 to 57f7be9 Compare October 1, 2025 10:21

Fix lints in animations example

7b2db36

Removes `const` from `Text` widgets inside a `Row` that was not itself `const`, and adds `const` to the `Row` itself.

alex-kobozev-talabat mentioned this pull request Oct 1, 2025

[packages] groupValue and onChanged are deprecated flutter/flutter#170915

Closed

alexskobozev added 2 commits October 1, 2025 14:48

[two_dimensional_scrollables] Fix lints in examples

fe84be7

Adds `const` to constructors and curly braces to control flow statements to fix new lint warnings in the `table_explorer.dart` and `tree_explorer.dart` examples.

[camera_avfoundation] Format example main.dart

b813cf9

Formats the `main.dart` file in the example application to align with current project standards. This change primarily involves code formatting and does not alter any functionality.

stuartmorgan-g changed the title ~~[animations][camera][camera_android][camera_android_camerax][camera_avfoundation][google_sign_in_web][two_dimensional_scrollables] Migrate example Radio groups to new RadioGroup API~~ [various] Migrate example Radio groups to new RadioGroup API Oct 1, 2025

alexskobozev added 3 commits October 7, 2025 11:48

[google_sign_in_web] Update onChanged callback in example: pass it as…

2a923fe

… is if non null instead of lambda

Merge remote-tracking branch 'origin/handle_deprecated_radio_examples…

71f6c80

…' into handle_deprecated_radio_examples

Merge branch 'main' into handle_deprecated_radio_examples

0839417

stuartmorgan-g approved these changes Oct 8, 2025

View reviewed changes

alexskobozev added 9 commits October 12, 2025 11:45

Merge branch 'main' into handle_deprecated_radio_examples

eceac1f

# Conflicts: # packages/camera/camera_android/CHANGELOG.md # packages/camera/camera_android_camerax/CHANGELOG.md

Merge branch 'main' into handle_deprecated_radio_examples

39e0367

# Conflicts: # packages/camera/camera_android/CHANGELOG.md # packages/camera/camera_android_camerax/CHANGELOG.md

Update versions

ddc19d5

fix version match

764aef8

Merge branch 'main' into handle_deprecated_radio_examples

abda454

Merge branch 'main' into handle_deprecated_radio_examples

587bbde

Merge branch 'main' into handle_deprecated_radio_examples

5e92e4b

Merge branch 'main' into handle_deprecated_radio_examples

a0f6243

update version

ed108d7

reidbaker approved these changes Oct 21, 2025

View reviewed changes

alexskobozev added 2 commits October 22, 2025 10:16

Merge branch 'main' into handle_deprecated_radio_examples

7c0ca21

Update versions

8eba7ed

stuartmorgan-g added the autosubmit Merge PR when tree becomes green via auto submit App label Oct 22, 2025

auto-submit bot merged commit f6896e5 into flutter:main Oct 22, 2025
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engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Oct 22, 2025

f6896e52b [various] Migrate example Radio groups to new RadioGroup API (

ca7c1d8

flutter/packages#10155)

engine-flutter-autoroll mentioned this pull request Oct 22, 2025

Roll Packages from d113bbc1107e to e04b6e410922 (8 revisions) flutter/flutter#177390

Closed

engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Oct 22, 2025

f6896e52b [various] Migrate example Radio groups to new RadioGroup API (

38b2856

flutter/packages#10155)

engine-flutter-autoroll mentioned this pull request Oct 22, 2025

Roll Packages from d113bbc1107e to e04b6e410922 (8 revisions) flutter/flutter#177398

Closed

alexskobozev deleted the handle_deprecated_radio_examples branch October 23, 2025 06:25

engine-flutter-autoroll added a commit to engine-flutter-autoroll/flutter that referenced this pull request Oct 23, 2025

f6896e52b [various] Migrate example Radio groups to new RadioGroup API (

e660403

flutter/packages#10155)

engine-flutter-autoroll mentioned this pull request Oct 23, 2025

Roll Packages from d113bbc1107e to 9ec29b6d23e7 (12 revisions) flutter/flutter#177455

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ekuleshov reviewed Oct 24, 2025

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