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[A11y] in calendar date picker, remove SemanticsService.sendAnnouncement usage for android. #182918

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hannah-hyj merged 8 commits intoflutter:masterfrom
hannah-hyj:fix-180096
Feb 28, 2026
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[A11y] in calendar date picker, remove SemanticsService.sendAnnouncement usage for android. #182918
hannah-hyj merged 8 commits intoflutter:masterfrom
hannah-hyj:fix-180096

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@hannah-hyj hannah-hyj commented Feb 25, 2026

fix: #180096

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@github-actions github-actions bot added framework flutter/packages/flutter repository. See also f: labels. f: material design flutter/packages/flutter/material repository. labels Feb 25, 2026
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Code Review

This pull request correctly replaces the deprecated SemanticsService.sendAnnouncement with a Semantics live region for Android accessibility in the calendar date picker. This is a good improvement for Android accessibility. The changes are well-tested. I have a couple of suggestions to improve code quality by reducing some duplication.

@hannah-hyj hannah-hyj requested a review from chunhtai February 26, 2026 00:14
void _announce(String message) {
// SemanticsService.sendAnnouncement is deprecated on android.
// We use live region to achieve the announcement effect instead.
if (Theme.of(context).platform == TargetPlatform.android) {
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use MediaQuery.maybeSupportsAnnounceOf(context)

}

class _CalendarDatePickerState extends State<CalendarDatePicker> {
mixin _LiveRegionAnnouncementMixin<T extends StatefulWidget> on State<T> {
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This mixin doesn't really help given that the consumer still have to figure out what to do with _announcementText.

Either inline the logic or make this a wrapper widget

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updated to inline logic

Update calendar_date_picker.dart

Update calendar_date_picker.dart
@hannah-hyj hannah-hyj requested a review from chunhtai February 27, 2026 21:25
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code LGTM once ci passes

@hannah-hyj hannah-hyj added this pull request to the merge queue Feb 28, 2026
Merged via the queue into flutter:master with commit 5a9ac4d Feb 28, 2026
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@hannah-hyj hannah-hyj deleted the fix-180096 branch February 28, 2026 03:23
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Roll Flutter from 1141b2bdce66 to 46fb7210422d (38 revisions)

flutter/flutter@1141b2b...46fb721

2026-03-02 [email protected] [rules] Fix a few issues in the full-length rules file (flutter/flutter#182725)
2026-03-02 [email protected] Roll Dart SDK from 8063f5f5ac60 to e86dbe9aa742 (1 revision) (flutter/flutter#183120)
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2026-03-01 [email protected] Roll Skia from b9210eb7005f to be1362b5ca4e (1 revision) (flutter/flutter#183092)
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2026-03-01 [email protected] Roll Fuchsia Linux SDK from D7IYacJUCpvc_1iU_... to zN2ZV9QD0LD8acUFF... (flutter/flutter#183076)
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2026-02-28 [email protected] Roll Dart SDK from 148d91b8a603 to 54451fcdbcf9 (2 revisions) (flutter/flutter#183051)
2026-02-28 [email protected] [A11y] in calendar date picker, remove SemanticsService.sendAnnouncement usage for android.  (flutter/flutter#182918)
2026-02-28 [email protected] Add desktop review teams (flutter/flutter#182972)
2026-02-28 [email protected] [framework] Fix Text.semanticsIdentifier being absorbed by ancestor nodes (flutter/flutter#181795)
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2026-02-28 [email protected] [Impeller] For Android hardware buffers on Vulkan, use an alpha value of 1 if the buffer format always has opaque alpha (flutter/flutter#182974)
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2026-02-27 [email protected] Add missing mutation-safe delegate iteration and use idomatic syntax (flutter/flutter#183018)
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2026-02-27 [email protected] Ignore unawaited_futures lint in dev/automated_tests (flutter/flutter#182922)
2026-02-27 [email protected] licenses_cpp: pre-land changes for perfetto update (flutter/flutter#182965)
2026-02-27 [email protected] Re-add extended attribute removed by SwiftPM (flutter/flutter#183011)
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2026-02-27 [email protected] chore: Don't unconditionally check tools/gn formatting (flutter/flutter#182973)
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xxxOVALxxx pushed a commit to xxxOVALxxx/flutter that referenced this pull request Mar 10, 2026
…ent usage for android. (flutter#182918)

fix: flutter#180096 

*Replace this paragraph with a description of what this PR is changing
or adding, and why. Consider including before/after screenshots.*

*List which issues are fixed by this PR. You must list at least one
issue. An issue is not required if the PR fixes something trivial like a
typo.*

*If you had to change anything in the [flutter/tests] repo, include a
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Remove CalendarDatepicker usage of Semantic Announcements

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