[Google3 Bug]: Android Talkback does not read "1 of 4" or similar indexes of items for any of the children of the ListView even with the use of IndexedSemantics #168651
Description
Help us understand the severity of this issue
- causing severe production issues e.g. malfunctions or data loss
- blocking next binary release
- blocking a client feature launch within a quarter
- nice-to-have but does not block a launch within the next quarter
Steps to reproduce
- Run the flutter application on android device
- Start android Talkback
- Swipe horizontally to allow Android talkback read through the Text widgets on the screen.
Expected results
With the use of IndexedSemantics, Android Talkback should have read:
"1 of 4, Title 1"
"2 of 4, Title 2",
"3 of 4, Title 3",
"4 of 4, Title 4"
Actual results
The following is read out by Talkback:
"Title 1"
"Title 2"
"Title 3"
"Title 4"
Code sample
Code sample
In the `bug_repro` project (created via `flutter create ~/Desktop/bug_repro`), Replace the `build` method of `_MyHomePageState` with the following code:@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
title: Text(widget.title),
),
body: Center(
child: ListView(
addSemanticIndexes: false,
semanticChildCount: 4,
physics: NeverScrollableScrollPhysics(),
children: [
IndexedSemantics(index: 0, child: Text('title 1')),
IndexedSemantics(index: 1, child: Text('title 2')),
IndexedSemantics(index: 2, child: Text('title 3')),
IndexedSemantics(index: 3, child: Text('title 4')),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: const Icon(Icons.add),
)
);
}Screenshots or Video
Screenshots / Video demonstration
20250512.Android.talkback.readout.for.visual.list.bug.mp4
Logs
Logs
[Paste your logs here]Flutter Doctor output
Doctor output
$ flutter doctor -v
[✓] Flutter (Channel stable, 3.29.3, on macOS 15.4.1 24E263 darwin-arm64, locale en) [2.2s]
• Flutter version 3.29.3 on channel stable at /Users/bhagrawal/flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision ea121f8859 (4 weeks ago), 2025-04-11 19:10:07 +0000
• Engine revision cf56914b32
• Dart version 3.7.2
• DevTools version 2.42.3
[!] Android toolchain - develop for Android devices (Android SDK version 35.0.0) [2.3s]
• Android SDK at /Users/bhagrawal/Library/Android/sdk
• Platform android-35, build-tools 35.0.0
• Java binary at: /Applications/Android Studio with Blaze.app/Contents/jbr/Contents/Home/bin/java
This is the JDK bundled with the latest Android Studio installation on this machine.
To manually set the JDK path, use: `flutter config --jdk-dir="path/to/jdk"`.
• Java version OpenJDK Runtime Environment (build 21.0.6+-13368085-b895.109)
! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses
[!] Xcode - develop for iOS and macOS (Xcode 16.0) [1,204ms]
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 16A242d
✗ CocoaPods not installed.
CocoaPods is a package manager for iOS or macOS platform code.
Without CocoaPods, plugins will not work on iOS or macOS.
For more info, see https://flutter.dev/to/platform-plugins
For installation instructions, see https://guides.cocoapods.org/using/getting-started.html#installation
[✓] Chrome - develop for the web [8ms]
• Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome
[✓] Android Studio (version 2024.3) [7ms]
• Android Studio at /Applications/Android Studio with Blaze.app/Contents
• Flutter plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
🔨 https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 21.0.6+-13368085-b895.109)
[✓] VS Code (version 1.100.0) [6ms]
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.110.0
[✓] Connected device (4 available) [6.4s]
• Pixel 6a (mobile) • 29121JEGR04412 • android-arm64 • Android 15 (API 35)
• macOS (desktop) • macos • darwin-arm64 • macOS 15.4.1 24E263
darwin-arm64
• Mac Designed for iPad (desktop) • mac-designed-for-ipad • darwin • macOS 15.4.1 24E263
darwin-arm64
• Chrome (web) • chrome • web-javascript • Google Chrome 136.0.7103.93
! Error: Browsing on the local area network for GBA iPhone12 202404. Ensure the device is unlocked and
attached with a cable or associated with the same local area network as this Mac.
The device must be opted into Developer Mode to connect wirelessly. (code -27)
! Error: Browsing on the local area network for Bhuvnesh’s Apple Watch. Ensure the device is unlocked and
discoverable via Bluetooth. (code -27)
[✓] Network resources [478ms]
• All expected network resources are available.
! Doctor found issues in 2 categories.b/418696524
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Important issues not at the top of the work listAccessibility, e.g. VoiceOver or TalkBack. (aka a11y)Various Google teamsFound to occur in 3.29Found to occur in 3.32The issue has been confirmed reproducible and is ready to work onAndroid applications specificallyIssue is closed as already fixed in a newer versionOwned by Framework Accessibility team (i.e. responsible for accessibility code in flutter/flutter)Triaged by Framework Accessibility team