react / react/react-native

Horizontal ScrollView touchables stop responding when nested inside a sticky header (RN 0.79.2)

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Component: ScrollView Needs: Triage :mag: Newer Patch Available
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Descrizione

Description

When you nest a horizontal ScrollView with touchable tabs inside a vertical ScrollView (or SectionList) that uses stickyHeaderIndices, the horizontal scroll still works, but the individual tab TouchableOpacity buttons no longer fire their onPress once the header becomes pinned. As soon as you scroll back up and the header unsticks, the buttons work again.


Steps to reproduce
  1. Create a fresh RN 0.79.2 project (or use your existing app).
  2. Copy this component into App.js (or similar):
import React, { useState } from 'react'
import { View, Text, ScrollView, TouchableOpacity, StyleSheet, SafeAreaView } from 'react-native'

const ItemBox = ({ title }) => (
  <View style={styles.itemBox}>
    <Text>{title}</Text>
  </View>
)

export default function NestedScrollTest() {
  const tabs = [
    { key: 'one', title: 'Tab One' },
    { key: 'two', title: 'Tab Two' },
    { key: 'three', title: 'Tab Three' },
    { key: 'four', title: 'Tab Four' },
    { key: 'five', title: 'Tab Five' },
  ]

  // Generate lots of items so it scrolls
  const allItems = Array.from({ length: 50 }, (_, i) => `Item #${i + 1}`)

  const [activeTab, setActiveTab] = useState(tabs[0].key)

  const filteredItems = allItems.filter(
    (_, idx) => idx % tabs.length === tabs.findIndex(t => t.key === activeTab)
  )

  return (
    <SafeAreaView style={styles.container}>
      <TouchableOpacity
        style={styles.submitButton}
        onPress={() => alert(`Submitting on "${activeTab}"`)}
      >
        <Text style={styles.submitText}>Top Submit Button</Text>
      </TouchableOpacity>
      {/* Vertical scroll area with sticky header */}
      <ScrollView
        style={styles.scrollContainer}
        contentContainerStyle={{ paddingBottom: 20 }}
        nestedScrollEnabled
        removeClippedSubviews={false}
        stickyHeaderIndices={[0]}
      >
        {/* Sticky horizontal tab bar */}
        <View style={styles.stickyContainer} pointerEvents="box-none">
          <ScrollView
            horizontal
            showsHorizontalScrollIndicator={false}
            nestedScrollEnabled
            pointerEvents="auto"
            contentContainerStyle={styles.tabBar}
            onStartShouldSetResponder={() => true}
          >
            {tabs.map(tab => (
              <TouchableOpacity
                key={tab.key}
                onPress={() => setActiveTab(tab.key)}
                activeOpacity={0.7}
                style={[
                  styles.tabButton,
                  activeTab === tab.key && styles.activeTab,
                ]}
              >
                <Text style={
                  activeTab === tab.key ? styles.activeTabText : styles.tabText
                }>
                  {tab.title}
                </Text>
              </TouchableOpacity>
            ))}
          </ScrollView>
        </View>

        {filteredItems.map(title => (
          <ItemBox key={title} title={title} />
        ))}
      </ScrollView>

      <TouchableOpacity
        style={styles.submitButton}
        onPress={() => alert(`Submitting on "${activeTab}"`)}
      >
        <Text style={styles.submitText}>Bottom Submit Button</Text>
      </TouchableOpacity>
    </SafeAreaView>
  )
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
  },
  scrollContainer: {
    flex: 1,
  },
  stickyContainer: {
    backgroundColor: 'white',
    zIndex: 10,
    elevation: 4,
  },
  tabBar: {
    paddingVertical: 10,
    paddingHorizontal: 8,
  },
  tabButton: {
    paddingHorizontal: 16,
    paddingVertical: 8,
    marginRight: 8,
    borderRadius: 4,
    backgroundColor: '#EEE',
  },
  activeTab: {
    backgroundColor: '#4A90E2',
  },
  tabText: {
    fontSize: 14,
    color: '#333',
  },
  activeTabText: {
    fontSize: 14,
    color: '#FFF',
  },
  itemBox: {
    height: 80,
    marginHorizontal: 16,
    marginVertical: 8,
    backgroundColor: '#F9F9F9',
    borderRadius: 6,
    justifyContent: 'center',
    alignItems: 'center',
    elevation: 2,
  },
  submitButton: {
    padding: 16,
    backgroundColor: '#28A745',
    alignItems: 'center',
  },
  submitText: {
    color: '#FFF',
    fontSize: 16,
  },
})

  1. Run on Android.

  2. Scroll until the tab bar sticks to the top.

  3. Tap any tab button—nothing fires.

  4. Scroll up one pixel; tap again—the press now registers.

React Native Version

0.79.2

Affected Platforms

Runtime - Android

Output of npx @react-native-community/cli info
System:
  OS: Linux 6.8 Ubuntu 24.04.2 LTS 24.04.2 LTS (Noble Numbat)
  CPU: (6) x64 Intel(R) Core(TM) i5-9400F CPU @ 2.90GHz
  Memory: 12.45 GB / 23.38 GB
  Shell:
    version: 5.2.21
    path: /bin/bash
Binaries:
  Node:
    version: 22.11.0
    path: ~/.nvm/versions/node/v22.11.0/bin/node
  Yarn:
    version: 1.22.22
    path: ~/.nvm/versions/node/v22.11.0/bin/yarn
  npm:
    version: 10.9.0
    path: ~/.nvm/versions/node/v22.11.0/bin/npm

npmPackages:
  "@react-native-community/cli":
    installed: 18.0.0
    wanted: 18.0.0
  react:
    installed: 19.0.0
    wanted: 19.0.0
  react-native:
    installed: 0.79.2
    wanted: 0.79.2
MANDATORY Reproducer

https://github.com/Mootzali/NestedScrollIssue/

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 con il riproduttore obbligatorio e il relativo componente App.js su Android, confrontando la pressione delle schede quando l’header è fissato e quando non lo è. Traccia la gestione del tocco di React Native Android per lo ScrollView orizzontale annidato e lo sticky header, quindi verifica che i controlli TouchableOpacity delle schede rispondano quando sono fissati senza interrompere lo scorrimento.

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
Tranquilla
Chiarezza
Abbastanza chiara
Idoneità per principianti
48/100

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