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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".
Newer version available: You are on a supported minor version, but it looks like there's a newer patch available - 0.77.2. Please upgrade to the highest patch for your minor or latest and verify if the issue persists (alternatively, create a new project and repro the issue in it). If it does not repro, please let us know so we can close out this issue. This helps us ensure we are looking at issues that still exist in the most recent releases.
Newer version available: You are on a supported minor version, but it looks like there's a newer patch available - undefined. Please upgrade to the highest patch for your minor or latest and verify if the issue persists (alternatively, create a new project and repro the issue in it). If it does not repro, please let us know so we can close out this issue. This helps us ensure we are looking at issues that still exist in the most recent releases.
To me, this confirms my belief. If the top view is the full size of the window (and I think it is), the measure() and measureInWindow() should return the same Y value.
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
React Native Version
0.77.0
Affected Platforms
Runtime - Android
Output of
npx @react-native-community/cli info
Stacktrace or Logs
Reproducer
https://github.com/dcorbin/LayoutEdgeToEdge
Screenshots and Videos
targetSdk 35


targetSdk 34
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