react / react/react-native

Pressable onPress fires when scrolling FlatList

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Component: FlatList Issue: Author Provided Repro Needs: Author Feedback
Dominant language
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Description

Description

When you have a list of <Pressable> inside a <FlatList>, and the list is short enough to fully fit on the screen (so that no scrolling is actually needed), then if you do scroll the list a whole bunch of onPress events will fire on the Pressable list items.

The expected behavior is that onPress should only be triggered when actually pressing an item.

I initially filed this report on the FlashList repo, but after further testing I actually believe this is a React Native issue.
Here's the FlashList issue: https://github.com/Shopify/flash-list/issues/1461
Here's an older very similar React Native issue that's been closed without a fix: https://github.com/facebook/react-native/issues/27355

Steps to reproduce

See the linked FlashList issue for the code and steps needed to reproduce

React Native Version

0.76.5

Affected Platforms

Runtime - Android

Output of npx react-native info
System:
  OS: macOS 15.1.1
  CPU: (12) arm64 Apple M3 Pro
  Memory: 560.73 MB / 36.00 GB
  Shell:
    version: "5.9"
    path: /bin/zsh
Binaries:
  Node:
    version: 20.18.1
    path: /usr/local/bin/node
  Yarn:
    version: 4.5.1
    path: /usr/local/bin/yarn
  npm:
    version: 10.8.2
    path: /usr/local/bin/npm
  Watchman:
    version: 2024.12.02.00
    path: /opt/homebrew/bin/watchman
Managers:
  CocoaPods: Not Found
SDKs:
  iOS SDK:
    Platforms:
      - DriverKit 24.1
      - iOS 18.1
      - macOS 15.1
      - tvOS 18.1
      - visionOS 2.1
      - watchOS 11.1
  Android SDK:
    API Levels:
      - "34"
      - "35"
    Build Tools:
      - 34.0.0
      - 35.0.0
    System Images:
      - android-34 | Google Play ARM 64 v8a
      - android-35 | Google APIs ARM 64 v8a
      - android-35 | Google Play ARM 64 v8a
    Android NDK: Not Found
IDEs:
  Android Studio: 2024.2 AI-242.23339.11.2421.12700392
  Xcode:
    version: 16.1/16B40
    path: /usr/bin/xcodebuild
Languages:
  Java:
    version: 17.0.13
    path: /usr/bin/javac
  Ruby:
    version: 2.6.10
    path: /Users/tobbe/.rbenv/shims/ruby
npmPackages:
  "@react-native-community/cli":
    installed: 15.1.3
    wanted: ^15.1.3
  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: Not found
  newArchEnabled: Not found
iOS:
  hermesEnabled: Not found
  newArchEnabled: Not found
Stacktrace or Logs
(NOBRIDGE) LOG  {"item": {"id": "3ac68afc-c605-48d3-a4f8-fbd91aa97f63", "title": "Second Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "58694a0f-3da1-471f-bd96-145571e29d72", "title": "Third Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "58694a0f-3da1-471f-bd96-145571e29d72", "title": "Third Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "58694a0f-3da1-471f-bd96-145571e29d72", "title": "Third Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "58694a0f-3da1-471f-bd96-145571e29d72", "title": "Third Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "58694a0f-3da1-471f-bd96-145571e29d72", "title": "Third Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "bd7acbea-c1b1-46c2-aed5-3ad53abb28ba", "title": "First Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "3ac68afc-c605-48d3-a4f8-fbd91aa97f63", "title": "Second Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "3ac68afc-c605-48d3-a4f8-fbd91aa97f63", "title": "Second Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "3ac68afc-c605-48d3-a4f8-fbd91aa97f63", "title": "Second Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "58694a0f-3da1-471f-bd96-145571e29d72", "title": "Third Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "58694a0f-3da1-471f-bd96-145571e29d72", "title": "Third Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "58694a0f-3da1-471f-bd96-145571e29d72", "title": "Third Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "58694a0f-3da1-471f-bd96-145571e29d72", "title": "Third Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "3ac68afc-c605-48d3-a4f8-fbd91aa97f63", "title": "Second Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "bd7acbea-c1b1-46c2-aed5-3ad53abb28ba", "title": "First Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "bd7acbea-c1b1-46c2-aed5-3ad53abb28ba", "title": "First Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "bd7acbea-c1b1-46c2-aed5-3ad53abb28ba", "title": "First Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "58694a0f-3da1-471f-bd96-145571e29d72", "title": "Third Item"}}
 (NOBRIDGE) LOG  {"item": {"id": "58694a0f-3da1-471f-bd96-145571e29d72", "title": "Third Item"}}
Reproducer

https://github.com/Tobbe/expo-bun-flash-list-issue

Screenshots and Videos

https://github.com/user-attachments/assets/6626450b-a771-46f5-80f1-f0d620394816

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 by running the linked Expo/Bun FlashList reproducer on Android with React Native 0.76.5 and confirm the Pressable/FlatList behavior described here. Trace the relevant React Native behavior from that reproduction; done means scrolling a short FlatList no longer fires onPress, while an actual press still does.

Written by the indexing model from the issue text.

Assessment

Tech stack
android, react-native
Domain
mobile-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
32/100

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