react / react/react-native

[iOS] - Elements in a row are announced in the wrong order by VoiceOver

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Needs: Triage :mag: Platform: iOS
Dominant language
C++
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Avg merge
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Merged PRs (30d)
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Description

Description

When elements with different heights are in a row with alignItems: ‘center’ or alignItems:’flex-end’, the tallest ones are selected and announced first by VoiceOver on iOS.

Tested on iPhone 13 mini, iOS 17.4.1

Steps to reproduce
  1. use the code in the reproducer and build on a physical iOS device
  2. activate VoiceOver and go through each example by swiping right
React Native Version

0.83.1

Affected Platforms

Runtime - iOS

Output of npx @react-native-community/cli info
System:
  OS: macOS 26.2
  CPU: (8) arm64 Apple M2
  Memory: 94.20 MB / 16.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 22.7.0
    path: /Users/gbs05577/.nvm/versions/node/v22.7.0/bin/node
  Yarn:
    version: 1.22.22
    path: /opt/homebrew/bin/yarn
  npm:
    version: 10.8.2
    path: /Users/gbs05577/.nvm/versions/node/v22.7.0/bin/npm
  Watchman:
    version: 2022.11.28.00
    path: /opt/homebrew/bin/watchman
Managers:
  CocoaPods:
    version: 1.15.2
    path: /Users/gbs05577/.rbenv/shims/pod
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 25.2
      - iOS 26.2
      - macOS 26.2
      - tvOS 26.2
      - visionOS 26.2
      - watchOS 26.2
  Android SDK: Not Found
IDEs:
  Android Studio: 2025.2 AI-252.25557.131.2521.14344949
  Xcode:
    version: 26.2/17C52
    path: /usr/bin/xcodebuild
Languages:
  Java:
    version: 17.0.16
    path: /usr/bin/javac
  Ruby:
    version: 2.7.5
    path: /Users/gbs05577/.rbenv/shims/ruby
npmPackages:
  "@react-native-community/cli":
    installed: 20.0.0
    wanted: 20.0.0
  react:
    installed: 19.2.0
    wanted: 19.2.0
  react-native:
    installed: 0.83.1
    wanted: 0.83.1
  react-native-macos: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: true
  newArchEnabled: true
iOS:
  hermesEnabled: true
  newArchEnabled: true
Stacktrace or Logs
-
MANDATORY Reproducer

https://snack.expo.dev/@andreamartinez/ios-voiceover-order-bug

Screenshots and Videos

https://github.com/user-attachments/assets/d76a86d2-1663-4bb6-bd14-085bd88a144e

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the linked Snack reproducer and run it on a physical iOS device with VoiceOver enabled, following the listed swipe-right steps. Trace the React Native iOS behavior responsible for accessibility element ordering; done means elements in rows with differing heights are announced in visual order for the reported alignment modes.

Written by the indexing model from the issue text.

Assessment

Tech stack
ios, react-native
Domain
accessibility, mobile-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
48/100

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