Fix the hitTest issue of reversed SliverMainAxisGroup. #171073

yiiim · 2025-06-24T14:00:54Z

Pre-launch Checklist

I read the Contributor Guide and followed the process outlined there for submitting PRs.
I read the Tree Hygiene wiki page, which explains my responsibilities.
I read and followed the Flutter Style Guide, including Features we expect every widget to implement.
I signed the CLA.
I listed at least one issue that this PR fixes in the description above.
I updated/added relevant documentation (doc comments with ///).
I added new tests to check the change I am making, or this PR is test-exempt.
I followed the breaking change policy and added Data Driven Fixes where supported.
All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel on Discord.

Piinks

Thank you for all your solid sliver work! 👏
This LGTM, I know you have another sliver main axis group PR in the merge queue - avoiding putting on the autosubmit now in case that creates a merge conflict here. Feel free to add it after that other change lands and this is in the clear. :)

…tter/flutter#171073)

flutter/flutter@ac12f66...43657f3 2025-07-10 sokolovskyi.konstantin@gmail.com [web] Add frame number support. (flutter/flutter#171592) 2025-07-10 ybz975218925@gmail.com Fix the hitTest issue of reversed SliverMainAxisGroup. (flutter/flutter#171073) 2025-07-10 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from 0-xqmXWc4cXzw3tfe... to lO64ePNEGrGzs-MFC... (flutter/flutter#171937) 2025-07-10 robert.ancell@canonical.com Refactor compositor classes (flutter/flutter#171414) 2025-07-10 matanlurey@users.noreply.github.com Give an actionable error to `flutter_test.*tap` of a `RenderSliver` (flutter/flutter#171930) 2025-07-10 ybz975218925@gmail.com Fix the issue with `SliverMainAxisGroups` growing in the reverse direction during layout. (flutter/flutter#171005) 2025-07-09 30870216+gaaclarke@users.noreply.github.com Adds a MCP server for working with the engine (flutter/flutter#171738) 2025-07-09 matt.boetger@gmail.com Use Async SurfaceHolder Callback to remove need for setting alpha workaround (flutter/flutter#171398) 2025-07-09 43054281+camsim99@users.noreply.github.com Update `CHANGELOG` for 3.32.5, 3.32.6 stable hotfix releases (flutter/flutter#171891) 2025-07-09 matanlurey@users.noreply.github.com Add `flutter config --enable-omit-legacy-version-file` (flutter/flutter#171903) 2025-07-09 40898687+dannyvalentesonos@users.noreply.github.com Allow flutter attach to discover flutter engine running on Custom Device (flutter/flutter#170635) 2025-07-09 matanlurey@users.noreply.github.com Hide the rarely direct used `--sample` argument by default (flutter/flutter#171898) 2025-07-09 matanlurey@users.noreply.github.com Support `NO_COLOR` to opt-out of `flutter` tool ANSI colors (flutter/flutter#171892) 2025-07-09 jessiewong401@gmail.com [Android 16] Added Docs to Warn Users that SystemChrome.setPreferredOrientations will Not Work (flutter/flutter#171089) 2025-07-09 biggs0125@gmail.com Add analytics events for wasm dry runs on web builds (flutter/flutter#171818) 2025-07-09 codefu@google.com feat: new builders for size experiment (flutter/flutter#171886) 2025-07-09 matanlurey@users.noreply.github.com Update `.gitignore`s (flutter/flutter#171907) 2025-07-09 matanlurey@users.noreply.github.com Add total execution time to the flutter upgrade command (flutter/flutter#171475) 2025-07-09 matanlurey@users.noreply.github.com Simplify the template for infrastructure requests (flutter/flutter#171905) 2025-07-09 nt4f04uNd@gmail.com Add detailed error message for BorderRadiusDirectional (flutter/flutter#171805) 2025-07-09 matanlurey@users.noreply.github.com Add public postmortem of the 3.32.3 release. (flutter/flutter#171904) 2025-07-09 matanlurey@users.noreply.github.com Make `labels` field an array (flutter/flutter#171906) 2025-07-09 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Reverts "Roll Packages from cba2e90 to 4a231ae (5 revisions) (#171879)" (#171897)" (flutter/flutter#171910) 2025-07-09 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Roll Packages from cba2e90 to 4a231ae (5 revisions) (#171879)" (flutter/flutter#171897) 2025-07-09 kjlubick@users.noreply.github.com [skia] Fix flag fiddling for Fuchsia, FreeType, & friends (flutter/flutter#171874) 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 Please CC louisehsu@google.com,stuartmorgan@google.com on the revert to ensure that a human is aware of the problem. To file a bug in Packages: 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

Fixes: flutter#170999 Fixes: flutter#171121 ## 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. If you need help, consider asking for advice on the #hackers-new channel on [Discord].  [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

PieterAelse · 2025-07-28T09:10:26Z

@Piinks Hi Kate, I'm not fully sure how cherry-picking fixes for a new hotfix goes, or what the process is, but I was wondering why this fix (which fixed #170999 ) wasn't in the new hotfix 3.32.8 ?

This issue is unfortunately blocking us from upgrading to the latest Flutter version.

Fixes: flutter#170999 Fixes: flutter#171121 ## 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. If you need help, consider asking for advice on the #hackers-new channel on [Discord].  [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

Piinks · 2025-07-28T16:04:36Z

Hey @PieterAelse, we usually cherry pick critical issues, and this appears to be a regular bug fix, hence no cherry pick. Unfortunately we cannot cherry fix every fix that lands. :)

…r#9589) flutter/flutter@ac12f66...43657f3 2025-07-10 sokolovskyi.konstantin@gmail.com [web] Add frame number support. (flutter/flutter#171592) 2025-07-10 ybz975218925@gmail.com Fix the hitTest issue of reversed SliverMainAxisGroup. (flutter/flutter#171073) 2025-07-10 engine-flutter-autoroll@skia.org Roll Fuchsia Linux SDK from 0-xqmXWc4cXzw3tfe... to lO64ePNEGrGzs-MFC... (flutter/flutter#171937) 2025-07-10 robert.ancell@canonical.com Refactor compositor classes (flutter/flutter#171414) 2025-07-10 matanlurey@users.noreply.github.com Give an actionable error to `flutter_test.*tap` of a `RenderSliver` (flutter/flutter#171930) 2025-07-10 ybz975218925@gmail.com Fix the issue with `SliverMainAxisGroups` growing in the reverse direction during layout. (flutter/flutter#171005) 2025-07-09 30870216+gaaclarke@users.noreply.github.com Adds a MCP server for working with the engine (flutter/flutter#171738) 2025-07-09 matt.boetger@gmail.com Use Async SurfaceHolder Callback to remove need for setting alpha workaround (flutter/flutter#171398) 2025-07-09 43054281+camsim99@users.noreply.github.com Update `CHANGELOG` for 3.32.5, 3.32.6 stable hotfix releases (flutter/flutter#171891) 2025-07-09 matanlurey@users.noreply.github.com Add `flutter config --enable-omit-legacy-version-file` (flutter/flutter#171903) 2025-07-09 40898687+dannyvalentesonos@users.noreply.github.com Allow flutter attach to discover flutter engine running on Custom Device (flutter/flutter#170635) 2025-07-09 matanlurey@users.noreply.github.com Hide the rarely direct used `--sample` argument by default (flutter/flutter#171898) 2025-07-09 matanlurey@users.noreply.github.com Support `NO_COLOR` to opt-out of `flutter` tool ANSI colors (flutter/flutter#171892) 2025-07-09 jessiewong401@gmail.com [Android 16] Added Docs to Warn Users that SystemChrome.setPreferredOrientations will Not Work (flutter/flutter#171089) 2025-07-09 biggs0125@gmail.com Add analytics events for wasm dry runs on web builds (flutter/flutter#171818) 2025-07-09 codefu@google.com feat: new builders for size experiment (flutter/flutter#171886) 2025-07-09 matanlurey@users.noreply.github.com Update `.gitignore`s (flutter/flutter#171907) 2025-07-09 matanlurey@users.noreply.github.com Add total execution time to the flutter upgrade command (flutter/flutter#171475) 2025-07-09 matanlurey@users.noreply.github.com Simplify the template for infrastructure requests (flutter/flutter#171905) 2025-07-09 nt4f04uNd@gmail.com Add detailed error message for BorderRadiusDirectional (flutter/flutter#171805) 2025-07-09 matanlurey@users.noreply.github.com Add public postmortem of the 3.32.3 release. (flutter/flutter#171904) 2025-07-09 matanlurey@users.noreply.github.com Make `labels` field an array (flutter/flutter#171906) 2025-07-09 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Reverts "Roll Packages from cba2e90 to 4a231ae (5 revisions) (#171879)" (#171897)" (flutter/flutter#171910) 2025-07-09 98614782+auto-submit[bot]@users.noreply.github.com Reverts "Roll Packages from cba2e90 to 4a231ae (5 revisions) (#171879)" (flutter/flutter#171897) 2025-07-09 kjlubick@users.noreply.github.com [skia] Fix flag fiddling for Fuchsia, FreeType, & friends (flutter/flutter#171874) 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 Please CC louisehsu@google.com,stuartmorgan@google.com on the revert to ensure that a human is aware of the problem. To file a bug in Packages: 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

…tter/flutter#171073)

Fixes: flutter#170999 Fixes: flutter#171121 ## 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. If you need help, consider asking for advice on the #hackers-new channel on [Discord].  [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

github-actions bot added framework flutter/packages/flutter repository. See also f: labels. f: scrolling Viewports, list views, slivers, etc. labels Jun 24, 2025

yiiim requested a review from Piinks June 24, 2025 14:22

yiiim force-pushed the fix_sliver_group_hittest branch from 7f4c3e9 to c9772c8 Compare June 25, 2025 10:00

fix sliver group reverse hittest

ca6c912

Piinks force-pushed the fix_sliver_group_hittest branch from c9772c8 to ca6c912 Compare July 10, 2025 01:10

Piinks approved these changes Jul 10, 2025

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yiiim and others added 2 commits July 10, 2025 09:40

Merge branch 'master' into fix_sliver_group_hittest

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fix analysis

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yiiim added the autosubmit Merge PR when tree becomes green via auto submit App label Jul 10, 2025

auto-submit bot added this pull request to the merge queue Jul 10, 2025

Merged via the queue into flutter:master with commit 8f34ca2 Jul 10, 2025
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flutter-dashboard bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Jul 10, 2025

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Roll Flutter from ac12f66681f1 to 43657f3baa17 (25 revisions) flutter/packages#9589

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8f34ca20c Fix the hitTest issue of reversed SliverMainAxisGroup. (flu…

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Flutter Notable Commits - 2025 #161460

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engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Aug 14, 2025

8f34ca20c Fix the hitTest issue of reversed SliverMainAxisGroup. (flu…

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…tter/flutter#171073)

engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Aug 14, 2025

8f34ca20c Fix the hitTest issue of reversed SliverMainAxisGroup. (flu…

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8f34ca20c Fix the hitTest issue of reversed SliverMainAxisGroup. (flu…

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…tter/flutter#171073)

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8f34ca20c Fix the hitTest issue of reversed SliverMainAxisGroup. (flu…

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…tter/flutter#171073)

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