react / react/react-native

Touches not registering/executing on FlatList/ScrollView when navigating back to the screen with a scrolling list (IOS)

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#35,921 9 comentarios 0 reacciones 0 asignados Ver en GitHub

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Component: FlatList Component: ScrollView Issue: Author Provided Repro Platform: iOS
Lenguaje dominante
C++
Estrellas
127k
Forks
25.3k
Merge medio
1 d 23 h
PR fusionados (30 d)
4

Descripción

Description

If we navigate to a new screen while a list component is currently scrolling and come back to this screen, the touch does not work on the previously scrolling list. Once i manually scroll the list again and scroll ends only after that touch starts to work on the children of the FlatList or ScrollView

The List component can be either ScrollView or FlatList.

Version

0.66.0, 0.69.0

Output of npx react-native info

System:
OS: macOS 12.1
CPU: (8) x64 Apple M1 Pro
Memory: 28.88 MB / 16.00 GB
Shell: 5.8 - /bin/zsh
Binaries:
Node: 14.10.0 - ~/.nvm/versions/node/v14.10.0/bin/node
Yarn: 1.22.19 - ~/.nvm/versions/node/v14.10.0/bin/yarn
npm: 6.14.8 - ~/.nvm/versions/node/v14.10.0/bin/npm
Watchman: Not Found
Managers:
CocoaPods: 1.11.0 - /usr/local/bin/pod
SDKs:
iOS SDK:
Platforms: iOS 15.0, DriverKit 20.4, macOS 11.3, tvOS 15.0, watchOS 8.0
Android SDK: Not Found
IDEs:
Android Studio: 2021.2 AI-212.5712.43.2112.8815526
Xcode: 13.0/13A233 - /usr/bin/xcodebuild
Languages:
Java: 14.0.2 - /usr/bin/javac
npmPackages:
@react-native-community/cli: Not Found
react: 18.0.0 => 18.0.0
react-native: 0.69.6 => 0.69.6
react-native-macos: Not Found
npmGlobalPackages:
react-native: Not Found

Steps to reproduce

Step 1: Create a ScrollView or Flatlist with navigation to a new Page on item click.

Step 2: Initiate a flick gesture on the list, to introduce a scroll from the 0th to the Nth position.

Step 3: While the list is scrolling, click on any other clickable component such as the search bar or any other clickable widget which has navigation attached to it.

Step 4: You will be navigated to a new screen. Now navigate to the previous screen.

Step 5: Click on any child component of the previously scrolling list.

Step 6: Nothing will happen until you manually scroll the list and it reaches an idle scroll position

Snack, code example, screenshot, or link to a repository

import React, { Component } from 'react';
import { View, Text, TouchableOpacity, SafeAreaView, FlatList, ScrollView } from 'react-native';

const App = ()=> {

const renderListItem = ({ item, index }: any) => {
return (

<ScrollView
onScroll={() => {
console.log(" onScroll called scrollview");
}
}
scrollEventThrottle={16}
horizontal

  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
  <Text>selected</Text>
   <TouchableOpacity
   style={{backgroundColor: 'yellow', padding: 20}}
   onPress={() =>console.log('on Press')}>
   <Text>Count</Text>

 </TouchableOpacity>
 </View>
);

};

return (

<FlatList
data={['']}
renderItem={renderListItem}
onScroll={() => {
console.log(" onScroll called Flatlist ");
}
}
/>

);
}
export default App

Guía de contribución

Abrir la guía de contribución

Primeros pasos

  1. Lee el issue completo y luego la guía de contribución del proyecto.
  2. Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
  3. Haz un fork del repositorio y trabaja en una rama.
  4. Abre un pull request que haga referencia al número del issue.

Línea de trabajo

Comienza reproduciendo el problema en iOS con el ejemplo proporcionado de ScrollView o FlatList, siguiendo los pasos de navegación y del gesto de flick. Rastrea el comportamiento táctil y de desplazamiento al volver a la pantalla anterior. Se considera terminado cuando los componentes secundarios responden a los toques inmediatamente después de volver, sin requerir otro desplazamiento manual.

Escrito por el modelo de indexación a partir del texto del issue.

Evaluación

Stack tecnológico
react-native
Área
mobile
Tipo de issue
Error
Dificultad
4/5
Tiempo estimado
3-5 días
Estado de actividad
Estancado
Claridad
Necesita aclaración
Aptitud para principiantes
28/100

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