[Android][New Arch][Pressable] the `locationY` and `locationX` on Android are inconsistent
まだ誰も着手していません。
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説明
Description
To make a separate issue of:
https://github.com/facebook/react-native/issues/36710#issuecomment-3204826621
It's been like 1 year there is many issues reported on Android about onPress not fired (in issues of this repo and by a lot of end-user).
Since I cannot reproduce because a lot of this issue are "random", I was looking for an alternative with an onPressOut workaround.
Was able to implement a full working workaround on iOS (scroll management, hitslop, ...) but when switching to Android everything was broke. My solution was based on locationY and locationX but after investigation, I noticed that the value of locationY and locationX on Android is not correct.
For exemple, when the onPressOut is triggered because the touch goes out of the screen, the locationY is equal to pageY.
When the onPressOut is trigger after the touch leave the Pressable, but still on another Pressable (stacked Button for exemple). The locationY looks like it's the value inside the second Pressable (expected 80, but received 15 for exemple).
Impact Touchables (WithoutFeedBack, Opacity, ...).
I don't know if it's the root-cause of all onPress issue, but might not help to handle it correctly.
In the code, found out that there is a "Legacy" / "non-legacy" logic that might explain why it's only on new-arch.
Regards
Steps to reproduce
- Create two Pressable with
onPressOut, log thelocationXandlocationY - Start pressing the first Pressable the slide quickly to the second one.
- The
onPressOutof the first one is triggered but display invalid valuelocationX/Y(supposed to be the calculated values of the second Pressable).
React Native Version
0.80.2
Affected Platforms
Runtime - Android
Output of npx @react-native-community/cli info
System:
OS: macOS 15.6
CPU: (16) x64 Intel(R) Core(TM) i9-9980HK CPU @ 2.40GHz
Memory: 13.99 GB / 64.00 GB
Shell:
version: "5.9"
path: /bin/zsh
Binaries:
Node:
version: 22.16.0
path: ~/.nvm/versions/node/v22.16.0/bin/node
Yarn:
version: 1.22.17
path: ~/.yarn/bin/yarn
npm:
version: 11.5.1
path: ~/.nvm/versions/node/v22.16.0/bin/npm
Watchman:
version: 2025.07.14.00
path: /usr/local/bin/watchman
Managers:
CocoaPods:
version: 1.16.2
path: /usr/local/bin/pod
SDKs:
iOS SDK:
Platforms:
- DriverKit 24.5
- iOS 18.5
- macOS 15.5
- tvOS 18.5
- visionOS 2.5
- watchOS 11.5
Android SDK: Not Found
IDEs:
Android Studio: 2025.1 AI-251.26094.121.2512.13930704
Xcode:
version: 16.4/16F6
path: /usr/bin/xcodebuild
Languages:
Java:
version: 17.0.1
path: /usr/local/opt/bin/javac
Ruby:
version: 3.4.5
path: /usr/local/opt/ruby/bin/ruby
npmPackages:
"@react-native-community/cli":
installed: 19.1.1
wanted: ^19.1.0
react:
installed: 19.1.0
wanted: 19.1.0
react-native:
installed: 0.80.2
wanted: ^0.80.1
react-native-macos: Not Found
npmGlobalPackages:
"*react-native*": Not Found
Android:
hermesEnabled: true
newArchEnabled: true
iOS:
hermesEnabled: true
newArchEnabled: true
Stacktrace or Logs
See console.log of reproducer / video
MANDATORY Reproducer
https://github.com/Dallas62/rn-pressabe-issue-location
Screenshots and Videos
https://github.com/user-attachments/assets/5c6ba929-e44a-440c-909e-7b41c893c347
コントリビューションガイド
はじめの一歩
- issue を最後まで読み、次にプロジェクトのコントリビューションガイドを読みます。
- 着手することを issue にコメントします — 二人が同じ作業をするのを防げます。
- リポジトリをフォークし、ブランチを切って変更します。
- issue 番号を参照したプルリクエストを送ります。
調査の方向性
参照されている行の周辺にある ReactAndroid/src/main/java/com/facebook/react/uimanager/events/TouchesHelper.kt から始め、新アーキテクチャを有効にした Android で必須の rn-pressabe-issue-location 再現手順を実行します。2つ目の Pressable または画面外へ移動しながら、最初の Pressable の onPressOut から locationX と locationY を比較します。報告された座標が影響を受けた Pressable の期待値と一致すれば完了です。
索引モデルが issue の本文から書いたものです。
評価
- 技術スタック
- android, kotlin, react-native
- 領域
- mobile
- issue の種類
- バグ
- 難易度
- 4/5
- 見積もり時間
- 3〜5日
- 活発さ
- 静か
- 明瞭さ
- おおむね明確
- 初心者へのやさしさ
- 52/100