react / react/react-native

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

Aperta
#35,921 9 commenti 0 reazioni 0 assegnatari Vedi su GitHub

Nessuno ha ancora preso questa issue.

Component: FlatList Component: ScrollView Issue: Author Provided Repro Platform: iOS
Lingua principale
C++
Stelle
127k
Fork
25.3k
Merge medio
1g 23h
PR unite (30g)
4

Descrizione

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

Guida per i contributori

Apri la guida per i contributori

Come iniziare

  1. Leggi tutta la issue e poi la guida ai contributi del progetto.
  2. Commenta sulla issue per dire che te ne occupi tu — evita che due persone facciano lo stesso lavoro.
  3. Fai un fork del repository e lavora su un branch.
  4. Apri una pull request che faccia riferimento al numero della issue.

Direzione di ricerca

Inizia riproducendo il problema su iOS con l'esempio fornito di ScrollView o FlatList, seguendo i passaggi di navigazione e del gesto di flick. Traccia il comportamento del tocco e dello scorrimento quando si torna alla schermata precedente. Il lavoro è completo quando i componenti figli rispondono ai tocchi immediatamente dopo il ritorno, senza richiedere un altro scorrimento manuale.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Valutazione

Stack tecnologico
react-native
Ambito
mobile
Tipo di issue
Bug
Difficoltà
4/5
Tempo stimato
3-5 giorni
Stato di attività
Ferma
Chiarezza
Da chiarire
Idoneità per principianti
28/100

Ricevi le nuove issue nella tua casella

Un breve riepilogo di issue GitHub adatte ai principianti.