react / react/react-native

Pressable onPress fires when scrolling FlatList

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Component: FlatList Issue: Author Provided Repro Needs: Author Feedback
Langage dominant
C++
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Forks
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Merge moyen
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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

Guide de contribution

Ouvrir le guide de contribution

Par où commencer

  1. Lisez l'issue en entier, puis le guide de contribution du projet.
  2. Signalez en commentaire que vous la prenez — cela évite que deux personnes fassent le même travail.
  3. Forkez le dépôt et travaillez sur une branche.
  4. Ouvrez une pull request qui référence le numéro de l'issue.

Piste de recherche

Commencez par exécuter le reproducteur Expo/Bun FlashList lié sur Android avec React Native 0.76.5 et confirmez le comportement de Pressable/FlatList décrit ici. Retracez le comportement pertinent de React Native à partir de cette reproduction ; c’est terminé lorsqu’un défilement d’une courte FlatList ne déclenche plus onPress, tandis qu’une véritable pression le déclenche toujours.

Rédigé par le modèle d'indexation à partir du texte de l'issue.

Évaluation

Stack technique
android, react-native
Domaine
mobile-dev
Type d'issue
Bug
Difficulté
4/5
Temps estimé
3-5 jours
Activité
À l'abandon
Clarté
À clarifier
Accessibilité débutants
32/100

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