onResponderRelease on View is called one time when releasing two fingers or more at exactly the same time.
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- Dominant language
- C++
- Stars
- 127k
- Forks
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- Avg merge
- 1d 23h
- Merged PRs (30d)
- 4
Description
Description
Code:
<View
style={styles.container}
onStartShouldSetResponder={() => true}
onMoveShouldSetResponder={() => true}
onResponderStart={addFingerOnScreen}
onResponderMove={moveFingersOnScreen}
onResponderRelease={releaseFingerFromScreen}>
</View>
Actions:
- I pressed the screen (on the view) with two fingers
- I released the screen with my two fingers on exactely on the same time
Result:
onResponderRelease is called one time with touches legnth 1 and changed touches lenght 1.
Expected:
onResponderRelease is called two times. The first time with touches length 1 and changed touches length 1. The second time with touches length 0 and changed touches length 1.
OR
onResponderRelease is called 1 time. The first time with touches length 0 and changed touches length 2.
Steps to reproduce
- I pressed the screen (on the view) with two fingers
- I released the screen with my two fingers on exactely on the same time
React Native Version
0.76.5
Affected Platforms
Runtime - Android
Output of npx react-native info
System:
OS: macOS 15.2
CPU: (8) arm64 Apple M1
Memory: 324.31 MB / 8.00 GB
Shell:
version: "5.9"
path: /bin/zsh
Binaries:
Node:
version: 20.12.2
path: ~/.nvm/versions/node/v20.12.2/bin/node
Yarn: Not Found
npm:
version: 10.5.0
path: ~/.nvm/versions/node/v20.12.2/bin/npm
Watchman:
version: 2024.12.02.00
path: /opt/homebrew/bin/watchman
Managers:
CocoaPods:
version: 1.14.3
path: /Users/Modis/.rvm/gems/ruby-2.7.6/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: Not Found
IDEs:
Android Studio: 2023.2 AI-232.10227.8.2321.11479570
Xcode:
version: 16.2/16C5032a
path: /usr/bin/xcodebuild
Languages:
Java:
version: 17.0.13
path: /usr/bin/javac
Ruby:
version: 2.7.6
path: /Users/Modis/.rvm/rubies/ruby-2.7.6/bin/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: 0.76.5
wanted: 0.76.5
react-native-macos: Not Found
npmGlobalPackages:
"*react-native*": Not Found
Android:
hermesEnabled: true
newArchEnabled: true
iOS:
hermesEnabled: true
newArchEnabled: true
Stacktrace or Logs
-
Reproducer
https://github.com/mohamed-amine-haine/responder-release-bug
Screenshots and Videos
No response
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 by running the linked responder-release-bug reproducer on Android and inspect the View responder callbacks shown in the issue. Compare the callback counts and touches/changedTouches values when two fingers are released simultaneously; done means the reported release behavior matches one of the expected outcomes.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- android, javascript, react-native
- Domain
- mobile
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100