measure or measureInWindow broken in 0.77 with (android) targetSdk 35 (maybe)
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Description
Description
First, I am aware of the changes made in 0.77 to forced edge-to-edge displays when targeting SDK 35. But I'm concerned that a bug has been introduced in to measure() or measureInWindow().
I have written a small RN project to show what I'm concerned with: https://github.com/dcorbin/LayoutEdgeToEdge. When targeting SDK 35 with this code, I call both methods and they return different values for y. However, if this project is built with targetSDK 34, the report they same Y value. (Screenshots below)
It makes sense to me that the value changes when edge-to-edge is enabled, but given how the views are laid out it seem that it should be the same Y for both methods.
I have seen this behavior cause regressions in two different circumstances where the layout of a view is being used to calculate a relative position of another view.
Probably unrelated, but I am curious why the onLayout information is different than the measure/measureInWindow information.
Steps to reproduce
- Checkout and run the example application.
- Notice the output as it is placed in the view.
React Native Version
0.77.0
Affected Platforms
Runtime - Android
Output of npx @react-native-community/cli info
info Fetching system and libraries information...
System:
OS: macOS 15.4
CPU: (10) arm64 Apple M1 Max
Memory: 4.26 GB / 64.00 GB
Shell:
version: "5.9"
path: /bin/zsh
Binaries:
Node:
version: 20.11.0
path: /usr/local/bin/node
Yarn:
version: 1.22.22
path: ~/.yarn/bin/yarn
npm:
version: 10.2.4
path: /usr/local/bin/npm
Watchman:
version: 2024.12.02.00
path: /opt/homebrew/bin/watchman
Managers:
CocoaPods:
version: 1.16.2
path: /opt/homebrew/bin/pod
SDKs:
iOS SDK:
Platforms:
- DriverKit 24.2
- iOS 18.2
- macOS 15.2
- tvOS 18.2
- visionOS 2.2
- watchOS 11.2
Android SDK:
API Levels:
- "29"
- "31"
- "33"
- "34"
- "35"
Build Tools:
- 29.0.2
- 30.0.3
- 33.0.0
- 33.0.1
- 34.0.0
- 35.0.0
System Images:
- android-21 | Google APIs ARM 64 v8a
- android-23 | ARM 64 v8a
- android-33 | Google APIs ARM 64 v8a
- android-33 | Google APIs Intel x86_64 Atom
- android-33 | Google Play ARM 64 v8a
- android-36 | Google Play ARM 64 v8a
Android NDK: Not Found
IDEs:
Android Studio: 2024.3 AI-243.22562.218.2431.13114758
Xcode:
version: 16.2/16C5032a
path: /usr/bin/xcodebuild
Languages:
Java:
version: 23.0.1
path: /Users/dcorbin/.jenv/shims/javac
Ruby:
version: 3.4.1
path: /Users/dcorbin/.rbenv/shims/ruby
npmPackages:
"@react-native-community/cli":
installed: 15.0.1
wanted: 15.0.1
react:
installed: 18.3.1
wanted: 18.3.1
react-native:
installed: 0.77.0
wanted: 0.77.0
react-native-macos: Not Found
npmGlobalPackages:
"*react-native*": Not Found
Android:
hermesEnabled: true
newArchEnabled: true
iOS:
hermesEnabled: Not found
newArchEnabled: false
info React Native v0.78.2 is now available (your project is running on v0.77.0).
info Changelog: https://github.com/facebook/react-native/releases/tag/v0.78.2
info Diff: https://react-native-community.github.io/upgrade-helper/?from=0.77.0&to=0.78.2
info For more info, check out "https://reactnative.dev/docs/upgrading?os=macos".
Stacktrace or Logs
N/A
Reproducer
https://github.com/dcorbin/LayoutEdgeToEdge
Screenshots and Videos
targetSdk 35
targetSdk 34
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the LayoutEdgeToEdge reproducer and compare measure() and measureInWindow() results under targetSdk 34 and 35, including the differing onLayout information. Trace the React Native Android measurement entry points involved; done means the target SDK behavior is explained and the reported coordinate inconsistency is corrected or clearly documented without regressing the other target.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- android, react-native
- Domain
- mobile
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100