Skip to content

[a11y][android] In Android 16, sendWindowContentChangeEvent when check state changes#183606

Merged
hannah-hyj merged 5 commits intoflutter:masterfrom
hannah-hyj:CONTENT_CHANGE_TYPE_CHECKED
Mar 13, 2026
Merged

[a11y][android] In Android 16, sendWindowContentChangeEvent when check state changes#183606
hannah-hyj merged 5 commits intoflutter:masterfrom
hannah-hyj:CONTENT_CHANGE_TYPE_CHECKED

Conversation

@hannah-hyj
Copy link
Member

@hannah-hyj hannah-hyj commented Mar 12, 2026

fix #181321

this is a new AccessibilityEvent added in android 16 api 36: https://developer.android.com/reference/android/view/accessibility/AccessibilityEvent#CONTENT_CHANGE_TYPE_CHECKED

So I tested this on checkbox and switch, it announces (checked, partially checked, not checked ) for status changes now,

in android 15 it was announcing (checked, not checked ) for check box and announcing(on, off) for the switch widget. I think (checked, not checked ) is not ideal for switch widget but better than nothing.

Pre-launch Checklist

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

Note: The Flutter team is currently trialing the use of Gemini Code Assist for GitHub. Comments from the gemini-code-assist bot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed.

@hannah-hyj hannah-hyj requested a review from a team as a code owner March 12, 2026 19:58
@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 Mar 12, 2026
Copy link
Contributor

@gemini-code-assist gemini-code-assist bot left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Code Review

This pull request correctly implements sending a CONTENT_CHANGE_TYPE_CHECKED accessibility event on Android API 36+ when a widget's checked or toggled state changes. The refactoring of sendWindowContentChangeEvent to support different change types is a good improvement. The new functionality is also well-covered by new unit tests.

I have a few suggestions to make the new tests more concise and readable by using Java Streams to verify the events.

@hannah-hyj hannah-hyj added the CICD Run CI/CD label Mar 12, 2026
@hannah-hyj hannah-hyj requested a review from chunhtai March 12, 2026 21:49
chunhtai
chunhtai previously approved these changes Mar 12, 2026
Copy link
Contributor

@chunhtai chunhtai left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM

@hannah-hyj hannah-hyj added the autosubmit Merge PR when tree becomes green via auto submit App label Mar 12, 2026
@auto-submit auto-submit bot removed the autosubmit Merge PR when tree becomes green via auto submit App label Mar 12, 2026
@auto-submit
Copy link
Contributor

auto-submit bot commented Mar 12, 2026

autosubmit label was removed for flutter/flutter/183606, because - The status or check suite Linux linux_unopt has failed. Please fix the issues identified (or deflake) before re-applying this label.

@hannah-hyj hannah-hyj added CICD Run CI/CD and removed CICD Run CI/CD labels Mar 13, 2026
@hannah-hyj hannah-hyj requested a review from chunhtai March 13, 2026 04:30
Copy link
Contributor

@chunhtai chunhtai left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

still lgtm

@hannah-hyj hannah-hyj added this pull request to the merge queue Mar 13, 2026
Merged via the queue into flutter:master with commit 9ccb252 Mar 13, 2026
184 checks passed
@hannah-hyj hannah-hyj deleted the CONTENT_CHANGE_TYPE_CHECKED branch March 13, 2026 18:58
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 14, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 14, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 15, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 15, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 16, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 16, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 16, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 16, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 16, 2026
@math1man
Copy link
Contributor

in android 15 it was announcing (checked, not checked ) for check box and announcing(on, off) for the switch widget. I think (checked, not checked ) is not ideal for switch widget but better than nothing.

FYI, when I test in my app using this change, I get the expected announcement of "checked/not checked" for checkboxes and "on/off" for switches.

engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 16, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 17, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 17, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 17, 2026
engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Mar 17, 2026
auto-submit bot pushed a commit to flutter/packages that referenced this pull request Mar 18, 2026
Roll Flutter from 732e05dd483c to d117642c18e0 (47 revisions)

flutter/flutter@732e05d...d117642

2026-03-17 [email protected] Roll Skia from fa3bb1f60d99 to dba893a44d7a (1 revision) (flutter/flutter#183783)
2026-03-17 [email protected] [ios][pv]fix admob banner scrollable on ios 18.2 (flutter/flutter#183274)
2026-03-17 [email protected] Roll Packages from 0f2eeae to a9d36fb (2 revisions) (flutter/flutter#183782)
2026-03-17 [email protected] Update goldctl version (flutter/flutter#183538)
2026-03-17 [email protected] Roll Skia from 69be1087807b to fa3bb1f60d99 (1 revision) (flutter/flutter#183779)
2026-03-17 [email protected] Roll Dart SDK from 38dedf00c2cd to 30cdd2634429 (1 revision) (flutter/flutter#183778)
2026-03-17 [email protected] Roll Fuchsia Linux SDK from s7rq9m8tH2aZtX-kP... to zYBvfzIH95BY3cCzL... (flutter/flutter#183777)
2026-03-17 [email protected] Roll Skia from 4ea039236580 to 69be1087807b (2 revisions) (flutter/flutter#183772)
2026-03-17 [email protected] Roll Skia from fb402093cfb5 to 4ea039236580 (1 revision) (flutter/flutter#183770)
2026-03-17 [email protected] Roll Skia from d6bc6d17d637 to fb402093cfb5 (8 revisions) (flutter/flutter#183765)
2026-03-17 [email protected] Roll Dart SDK from ff50ab8ecea4 to 38dedf00c2cd (2 revisions) (flutter/flutter#183764)
2026-03-17 [email protected] Wrap EGL image usage in a GObject (flutter/flutter#183539)
2026-03-17 [email protected] Adds platform_view_test_macos_impeller (flutter/flutter#183760)
2026-03-17 [email protected] Adds flush to metal screenshotter. (flutter/flutter#183758)
2026-03-16 [email protected] Add a platform OpenGL context. (flutter/flutter#183715)
2026-03-16 [email protected] Fix formatting, capitalization, and grammar in activation issue template (flutter/flutter#183061)
2026-03-16 [email protected] Roll Dart SDK from 4a6febbf882e to ff50ab8ecea4 (2 revisions) (flutter/flutter#183739)
2026-03-16 [email protected] docs: add code review guidance to CONTRIBUTING.md (flutter/flutter#182778)
2026-03-16 [email protected] Filter 'waiting for customer response' issues from macOS triage (flutter/flutter#183552)
2026-03-16 [email protected] Adds github action to reset cicd when new branches come (flutter/flutter#183675)
2026-03-16 [email protected] Adds macos impeller complex layout performance test (flutter/flutter#183669)
2026-03-16 [email protected] Roll Dart SDK from b74e5b537d71 to 4a6febbf882e (2 revisions) (flutter/flutter#183695)
2026-03-16 [email protected] Use properties to configure leak_tracking and test_randomization_off in .ci.yaml (flutter/flutter#183605)
2026-03-16 [email protected] [flutter_tools] Avoid File.exists and File.stat, as per enforced lint rule (flutter/flutter#183463)
2026-03-16 [email protected] Properly parse URIs for testPath when the host is running on Windows. (flutter/flutter#176881)
2026-03-16 [email protected] Roll Packages from 91f7c33 to 0f2eeae (6 revisions) (flutter/flutter#183730)
2026-03-16 [email protected] Roll Skia from a6ccaf95c6e0 to d6bc6d17d637 (5 revisions) (flutter/flutter#183726)
2026-03-16 [email protected] Roll Fuchsia Linux SDK from WOfyEFkxf9JX26VS-... to s7rq9m8tH2aZtX-kP... (flutter/flutter#183723)
2026-03-15 [email protected] Roll Skia from 34ace196b838 to a6ccaf95c6e0 (2 revisions) (flutter/flutter#183712)
2026-03-14 [email protected] Roll Fuchsia Linux SDK from vAWG8mRvsQHblDBsy... to WOfyEFkxf9JX26VS-... (flutter/flutter#183694)
2026-03-14 [email protected] Roll Skia from 06106120c6bf to 34ace196b838 (1 revision) (flutter/flutter#183677)
2026-03-14 [email protected] Roll Dart SDK from 6a3dc9d4f881 to b74e5b537d71 (2 revisions) (flutter/flutter#183676)
2026-03-14 [email protected] Add some quality of life improvements to the release GitHub workflows. (flutter/flutter#183658)
2026-03-14 [email protected] Fix RouteAware.didPushNext documentation inaccuracy (flutter/flutter#183097)
2026-03-13 [email protected] Adds complex layout impeller startup benchmark (flutter/flutter#183655)
2026-03-13 [email protected] Adds switch for sdf rendering plus golden tests (flutter/flutter#183543)
2026-03-13 [email protected] Made complex_layout_scroll_perf explicitly skia (flutter/flutter#183663)
2026-03-13 [email protected] Update android integration test to match the current android semantics (flutter/flutter#183548)
2026-03-13 [email protected] Roll Skia from 6c0346103c24 to 06106120c6bf (3 revisions) (flutter/flutter#183654)
2026-03-13 [email protected] Roll Dart SDK from d5f6d3c17499 to 6a3dc9d4f881 (1 revision) (flutter/flutter#183652)
2026-03-13 [email protected] Fix PinnedHeaderSliver semantics focus capture (flutter/flutter#179023)
2026-03-13 [email protected] [a11y][android] In Android 16, sendWindowContentChangeEvent when check state changes (flutter/flutter#183606)
2026-03-13 [email protected] Update gradle utils to know about kgp 2.3.10 constraints (flutter/flutter#183416)
2026-03-13 [email protected] Roll Skia from 029229d8be91 to 6c0346103c24 (5 revisions) (flutter/flutter#183648)
2026-03-13 [email protected] Roll Fuchsia Linux SDK from jJbpv4J_tjW-wuKDq... to vAWG8mRvsQHblDBsy... (flutter/flutter#183646)
2026-03-13 [email protected] [flutter_tools] Support flavors and transformers for shaders (flutter/flutter#181889)
...
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

CICD Run CI/CD engine flutter/engine related. See also e: labels. platform-android Android applications specifically team-android Owned by Android platform team

Projects

None yet

Development

Successfully merging this pull request may close these issues.

[a11y][Android] Checkbox and Switch state changes are not announced on Android 16 (SDK 36)

3 participants