Fix key events interception by RadioGroup when no Radio is focused. #176335
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This pull request effectively resolves an issue where RadioGroup would incorrectly intercept key events even when no Radio button within it had focus. The solution introduces a custom _RadioGroupShortcutManager which intelligently filters key events based on the focus state of the radio buttons. The implementation is clean, includes necessary resource management by disposing the new shortcut manager, and is accompanied by a thorough regression test that validates the fix. The changes are well-contained and correctly address the problem. I have one minor suggestion for improving code clarity.
chunhtai
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Oct 7, 2025
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LGTM, thanks for fixing this, just left a minor suggestion
| (RadioClient<T> radio) => radio.focusNode.hasFocus, | ||
| ); | ||
| if (!hasFocusedRadio) { | ||
| // Ignore the event if no radio is focused. |
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This comment is not useful, maybe give example why this can be a problem
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Thanks for the review. I added some more details to the comment.
// Ignore the event if no radio is focused. This prevents this handler
// from unintentionally consuming an event meant for a non-radio widget
// that currently has focus.
Do you like it, or do you have any suggestions?
justinmc
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Oct 13, 2025
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| late final _RadioGroupShortcutManager<T> _radioGroupShortcutManager = | ||
| _RadioGroupShortcutManager<T>(shortcuts: _radioGroupShortcuts, state: this); |
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No need for late if it's assigned here, right?
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Unfortunately, we are forced to use late as, although the assignment comes next, we use late _radioGroupShortcuts and this.
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| @override | ||
| KeyEventResult handleKeypress(BuildContext context, KeyEvent event) { | ||
| final bool hasFocusedRadio = state._radios.any( |
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Nit: I would change the name to radioHasFocus. The current name made me think it would be an instance of a radio or something.
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Thanks a lot for your review!
I updated the name in the latest commit as you suggested.
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autosubmit label was removed for flutter/flutter/176335, because - The status or check suite Mac_arm64 build_tests_2_4 has failed. Please fix the issues identified (or deflake) before re-applying this label. |
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autosubmit label was removed for flutter/flutter/176335, because - The status or check suite Mac_arm64 build_tests_3_4 has failed. Please fix the issues identified (or deflake) before re-applying this label. |
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…lutter#176335) Fixes flutter#175511 ### Description - Fixes key events interception by `RadioGroup` when no `Radio` is focused. ## Pre-launch Checklist - [X] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [X] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [X] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [X] I signed the [CLA]. - [X] I listed at least one issue that this PR fixes in the description above. - [ ] I updated/added relevant documentation (doc comments with `///`). - [X] I added new tests to check the change I am making, or this PR is [test-exempt]. - [X] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [X] All existing and new tests are passing. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
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Will this be in the next flutter version? |
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Fixes #175511
Description
RadioGroupwhen noRadiois focused.Pre-launch Checklist
///).