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[a11y] Add CONTENT_CHANGE_TYPE_EXPANDED support on android.#185305

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hannah-hyj:android-expand-event
Apr 27, 2026
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[a11y] Add CONTENT_CHANGE_TYPE_EXPANDED support on android.#185305
hannah-hyj merged 5 commits into
flutter:masterfrom
hannah-hyj:android-expand-event

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@hannah-hyj hannah-hyj commented Apr 20, 2026

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#174981 added expand flag support, this PR is a follow-up to add CONTENT_CHANGE_TYPE_EXPANDED (it's added in android 16 API 36)

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hannah-hyj requested a review from a team as a code owner April 20, 2026 20:03
@github-actions github-actions Bot added platform-android Android applications specifically engine flutter/engine related. See also e: labels. team-android Owned by Android platform team labels Apr 20, 2026
@hannah-hyj hannah-hyj added the CICD Run CI/CD label Apr 20, 2026

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Code Review

This pull request implements support for reporting expansion state changes to the Android accessibility system for API level 36. It introduces a didChangeExpandState method in AccessibilityBridge to detect changes in expansion flags and dispatches CONTENT_CHANGE_TYPE_EXPANDED events. A new test case verifies these events are sent during state transitions. Review feedback suggests improving code readability by grouping redundant SDK version checks, refining the assertion message in the new test for better accuracy, and adding negative test cases for lower API levels to ensure the version guard works as expected.

@github-actions github-actions Bot removed the CICD Run CI/CD label Apr 20, 2026
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hannah-hyj force-pushed the android-expand-event branch from fe894ff to dd03fcc Compare April 20, 2026 20:26
@hannah-hyj hannah-hyj added the CICD Run CI/CD label Apr 20, 2026
@github-actions github-actions Bot removed the CICD Run CI/CD label Apr 22, 2026
@hannah-hyj hannah-hyj added the CICD Run CI/CD label Apr 22, 2026
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hannah-hyj requested a review from chunhtai April 22, 2026 05:03
@github-actions github-actions Bot removed the CICD Run CI/CD label Apr 23, 2026

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LGTM

@hannah-hyj hannah-hyj added CICD Run CI/CD autosubmit Merge PR when tree becomes green via auto submit App labels Apr 24, 2026
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autosubmit label was removed for flutter/flutter/185305, because - The status or check suite Google testing has failed. Please fix the issues identified (or deflake) before re-applying this label.

@auto-submit auto-submit Bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Apr 24, 2026
hannah-hyj and others added 5 commits April 24, 2026 15:05
…/AccessibilityBridgeTest.java

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
@hannah-hyj
hannah-hyj force-pushed the android-expand-event branch from 737a14e to d94187b Compare April 24, 2026 22:05
@github-actions github-actions Bot removed the CICD Run CI/CD label Apr 24, 2026
@hannah-hyj hannah-hyj added the CICD Run CI/CD label Apr 24, 2026
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hannah-hyj added this pull request to the merge queue Apr 27, 2026
Merged via the queue into flutter:master with commit 1b3faac Apr 27, 2026
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@hannah-hyj
hannah-hyj deleted the android-expand-event branch April 27, 2026 23:42
auto-submit Bot pushed a commit to flutter/packages that referenced this pull request Apr 28, 2026
…11595)

Manual roll Flutter from 31001886cbe8 to 61fca76dd523 (53 revisions)

Manual roll requested by [email protected]

flutter/flutter@3100188...61fca76

2026-04-27 [email protected] Adds integration test for the FLTEnableSDFs flag for iOS (flutter/flutter#185637)
2026-04-27 [email protected] Fix sdfs being enabled for MacOS regardless of FLTEnableSDFs value (flutter/flutter#185565)
2026-04-27 [email protected] Don't use UberSDF for paint with incompatible blend modes (flutter/flutter#184889)
2026-04-27 [email protected] Roll Dart SDK from de495e3de9a0 to 941ca325cfc9 (2 revisions) (flutter/flutter#185653)
2026-04-27 [email protected] [a11y] Add CONTENT_CHANGE_TYPE_EXPANDED support on android. (flutter/flutter#185305)
2026-04-27 [email protected] Roll pub packages (flutter/flutter#185641)
2026-04-27 [email protected] Modify analyze.dart to have flags to run only or exclude each verification step.  (flutter/flutter#185618)
2026-04-27 [email protected] Fix debugNeedsPaint/Layout/CompositedLayerUpdate crashing in release mode (flutter/flutter#184627)
2026-04-27 [email protected] Enable `var_with_no_type_annotation` lint. (flutter/flutter#185215)
2026-04-27 [email protected] Fix SelectionArea handles overlapping context menu on Android (flutter/flutter#182663)
2026-04-27 [email protected] Adds debugging information to compiled metal shaders (flutter/flutter#185629)
2026-04-27 [email protected] Roll pub packages (flutter/flutter#185638)
2026-04-27 [email protected] Use null-aware elements in dev/devicelab/lib/framework/browser.dart (flutter/flutter#184778)
2026-04-27 [email protected] Sync CHANGELOG.md from stable (flutter/flutter#185633)
2026-04-27 [email protected] Added useOriginalColors flag which allows ImageIcon to bypass IconTheme colorization and use the original colors (flutter/flutter#180491)
2026-04-27 [email protected] Roll Packages from 8400f71 to 23280da (2 revisions) (flutter/flutter#185619)
2026-04-27 [email protected] Roll Skia from f1238e0f1022 to ce82d32b3e03 (1 revision) (flutter/flutter#185616)
2026-04-27 [email protected] [SwiftPM] Enable package resolution on xcodebuild commands (flutter/flutter#185208)
2026-04-27 [email protected] [iOS] Refactor keyboard inset logic into FlutterKeyboardInsetManager (flutter/flutter#185535)
2026-04-27 [email protected] [Win32] FlutterDesktopEngineGetGraphicsAdapter should use out parameter (flutter/flutter#185590)
2026-04-27 [email protected] Roll Skia from d77e3356d526 to f1238e0f1022 (4 revisions) (flutter/flutter#185604)
2026-04-27 [email protected] Roll Fuchsia Linux SDK from flsn8jC4LkTn6WECf... to i6d0NoDueUiXpePfX... (flutter/flutter#185601)
2026-04-26 [email protected] Roll Dart SDK from a108dfe2d227 to de495e3de9a0 (1 revision) (flutter/flutter#185599)
2026-04-26 [email protected] Roll Skia from ce9aa2231292 to d77e3356d526 (1 revision) (flutter/flutter#185596)
2026-04-26 [email protected] Roll Skia from 622fff4c24d2 to ce9aa2231292 (1 revision) (flutter/flutter#185588)
2026-04-25 [email protected] Roll Fuchsia Linux SDK from 9fPnyEo9PaNdXtasl... to flsn8jC4LkTn6WECf... (flutter/flutter#185585)
2026-04-25 [email protected] Roll Dart SDK from 605a8faf0dda to a108dfe2d227 (1 revision) (flutter/flutter#185584)
2026-04-25 [email protected] Roll Dart SDK from 6b8c39765f17 to 605a8faf0dda (1 revision) (flutter/flutter#185578)
2026-04-25 [email protected] Roll Skia from 185f6b57d64f to 622fff4c24d2 (1 revision) (flutter/flutter#185573)
2026-04-25 [email protected] Implement square-like round superellipses with circular corners in the SDF uber shader (flutter/flutter#185370)
2026-04-25 [email protected] Add @awaitNotRequired annotation to flutter sdk (flutter/flutter#181513)
2026-04-25 [email protected] Roll Dart SDK from 01228cb7af42 to 6b8c39765f17 (2 revisions) (flutter/flutter#185569)
2026-04-25 [email protected] Adapt the DisplayList benchmarks into a primitive rendering benchmark suite (flutter/flutter#185270)
2026-04-25 [email protected] Enable SPM for GoogleMobileAds (flutter/flutter#185548)
2026-04-25 [email protected] Roll Skia from 3f467a581942 to 185f6b57d64f (1 revision) (flutter/flutter#185564)
2026-04-25 [email protected] Fix Table crash when a cell child paints below the row bottom (flutter/flutter#185323)
2026-04-24 [email protected] Make sure that an Image doesn't crash in 0x0 environment (flutter/flutter#181154)
2026-04-24 [email protected] Roll Skia from 300d432048b0 to 3f467a581942 (3 revisions) (flutter/flutter#185558)
2026-04-24 [email protected] Roll Dart SDK from c26627715892 to 01228cb7af42 (4 revisions) (flutter/flutter#185559)
2026-04-24 [email protected] Reland "[web] Fix LateInitializationError in CkSurface and SkwasmSurface (#185116)" (flutter/flutter#185553)
2026-04-24 [email protected] [github]fix git ls-file glob pattern in labeler.yml instruction (flutter/flutter#185495)
2026-04-24 [email protected] [ios]update ios-reviewers tags to include more files (flutter/flutter#185490)
2026-04-24 [email protected] Add initial support for Cross-Origin Storage (flutter/flutter#184149)
2026-04-24 [email protected] tool: Skip cached engine artifacts with local engine (flutter/flutter#185546)
...
creatorpiyush pushed a commit to creatorpiyush/packages that referenced this pull request Jun 10, 2026
…lutter#11595)

Manual roll Flutter from 31001886cbe8 to 61fca76dd523 (53 revisions)

Manual roll requested by [email protected]

flutter/flutter@3100188...61fca76

2026-04-27 [email protected] Adds integration test for the FLTEnableSDFs flag for iOS (flutter/flutter#185637)
2026-04-27 [email protected] Fix sdfs being enabled for MacOS regardless of FLTEnableSDFs value (flutter/flutter#185565)
2026-04-27 [email protected] Don't use UberSDF for paint with incompatible blend modes (flutter/flutter#184889)
2026-04-27 [email protected] Roll Dart SDK from de495e3de9a0 to 941ca325cfc9 (2 revisions) (flutter/flutter#185653)
2026-04-27 [email protected] [a11y] Add CONTENT_CHANGE_TYPE_EXPANDED support on android. (flutter/flutter#185305)
2026-04-27 [email protected] Roll pub packages (flutter/flutter#185641)
2026-04-27 [email protected] Modify analyze.dart to have flags to run only or exclude each verification step.  (flutter/flutter#185618)
2026-04-27 [email protected] Fix debugNeedsPaint/Layout/CompositedLayerUpdate crashing in release mode (flutter/flutter#184627)
2026-04-27 [email protected] Enable `var_with_no_type_annotation` lint. (flutter/flutter#185215)
2026-04-27 [email protected] Fix SelectionArea handles overlapping context menu on Android (flutter/flutter#182663)
2026-04-27 [email protected] Adds debugging information to compiled metal shaders (flutter/flutter#185629)
2026-04-27 [email protected] Roll pub packages (flutter/flutter#185638)
2026-04-27 [email protected] Use null-aware elements in dev/devicelab/lib/framework/browser.dart (flutter/flutter#184778)
2026-04-27 [email protected] Sync CHANGELOG.md from stable (flutter/flutter#185633)
2026-04-27 [email protected] Added useOriginalColors flag which allows ImageIcon to bypass IconTheme colorization and use the original colors (flutter/flutter#180491)
2026-04-27 [email protected] Roll Packages from 8400f71 to 23280da (2 revisions) (flutter/flutter#185619)
2026-04-27 [email protected] Roll Skia from f1238e0f1022 to ce82d32b3e03 (1 revision) (flutter/flutter#185616)
2026-04-27 [email protected] [SwiftPM] Enable package resolution on xcodebuild commands (flutter/flutter#185208)
2026-04-27 [email protected] [iOS] Refactor keyboard inset logic into FlutterKeyboardInsetManager (flutter/flutter#185535)
2026-04-27 [email protected] [Win32] FlutterDesktopEngineGetGraphicsAdapter should use out parameter (flutter/flutter#185590)
2026-04-27 [email protected] Roll Skia from d77e3356d526 to f1238e0f1022 (4 revisions) (flutter/flutter#185604)
2026-04-27 [email protected] Roll Fuchsia Linux SDK from flsn8jC4LkTn6WECf... to i6d0NoDueUiXpePfX... (flutter/flutter#185601)
2026-04-26 [email protected] Roll Dart SDK from a108dfe2d227 to de495e3de9a0 (1 revision) (flutter/flutter#185599)
2026-04-26 [email protected] Roll Skia from ce9aa2231292 to d77e3356d526 (1 revision) (flutter/flutter#185596)
2026-04-26 [email protected] Roll Skia from 622fff4c24d2 to ce9aa2231292 (1 revision) (flutter/flutter#185588)
2026-04-25 [email protected] Roll Fuchsia Linux SDK from 9fPnyEo9PaNdXtasl... to flsn8jC4LkTn6WECf... (flutter/flutter#185585)
2026-04-25 [email protected] Roll Dart SDK from 605a8faf0dda to a108dfe2d227 (1 revision) (flutter/flutter#185584)
2026-04-25 [email protected] Roll Dart SDK from 6b8c39765f17 to 605a8faf0dda (1 revision) (flutter/flutter#185578)
2026-04-25 [email protected] Roll Skia from 185f6b57d64f to 622fff4c24d2 (1 revision) (flutter/flutter#185573)
2026-04-25 [email protected] Implement square-like round superellipses with circular corners in the SDF uber shader (flutter/flutter#185370)
2026-04-25 [email protected] Add @awaitNotRequired annotation to flutter sdk (flutter/flutter#181513)
2026-04-25 [email protected] Roll Dart SDK from 01228cb7af42 to 6b8c39765f17 (2 revisions) (flutter/flutter#185569)
2026-04-25 [email protected] Adapt the DisplayList benchmarks into a primitive rendering benchmark suite (flutter/flutter#185270)
2026-04-25 [email protected] Enable SPM for GoogleMobileAds (flutter/flutter#185548)
2026-04-25 [email protected] Roll Skia from 3f467a581942 to 185f6b57d64f (1 revision) (flutter/flutter#185564)
2026-04-25 [email protected] Fix Table crash when a cell child paints below the row bottom (flutter/flutter#185323)
2026-04-24 [email protected] Make sure that an Image doesn't crash in 0x0 environment (flutter/flutter#181154)
2026-04-24 [email protected] Roll Skia from 300d432048b0 to 3f467a581942 (3 revisions) (flutter/flutter#185558)
2026-04-24 [email protected] Roll Dart SDK from c26627715892 to 01228cb7af42 (4 revisions) (flutter/flutter#185559)
2026-04-24 [email protected] Reland "[web] Fix LateInitializationError in CkSurface and SkwasmSurface (#185116)" (flutter/flutter#185553)
2026-04-24 [email protected] [github]fix git ls-file glob pattern in labeler.yml instruction (flutter/flutter#185495)
2026-04-24 [email protected] [ios]update ios-reviewers tags to include more files (flutter/flutter#185490)
2026-04-24 [email protected] Add initial support for Cross-Origin Storage (flutter/flutter#184149)
2026-04-24 [email protected] tool: Skip cached engine artifacts with local engine (flutter/flutter#185546)
...
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