`View` inside `ScrollView` makes scroll-to-top when multiline input grows
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Descripción
Description
I use this component:
import React, { forwardRef } from "react";
import {
ScrollView,
ScrollViewProps,
View,
} from "react-native";
export type KeyboardAwareScrollViewProps = {
/** The distance between keyboard and focused `TextInput` when keyboard is shown. Default is `0`. */
bottomOffset?: number;
/** Prevents automatic scrolling of the `ScrollView` when the keyboard gets hidden, maintaining the current screen position. Default is `false`. */
disableScrollOnKeyboardHide?: boolean;
/** Controls whether this `KeyboardAwareScrollView` instance should take effect. Default is `true` */
enabled?: boolean;
/** Adjusting the bottom spacing of KeyboardAwareScrollView. Default is `0` */
extraKeyboardSpace?: number;
/** Custom component for `ScrollView`. Default is `ScrollView` */
ScrollViewComponent?: React.ComponentType<ScrollViewProps>;
} & ScrollViewProps;
const KeyboardAwareScrollView = forwardRef<
ScrollView,
React.PropsWithChildren<KeyboardAwareScrollViewProps>
>(
(
{
children,
...rest
},
ref,
) => {
return (
<>
<ScrollView {...rest} scrollEventThrottle={16}>
{children}
<View style={{height: 336, backgroundColor: 'red'}} />
</ScrollView>
</>
);
},
);
export default KeyboardAwareScrollView;
And I use it the code:
import React, { useCallback, useEffect, useRef, useState } from "react";
import { Button, Platform, Switch, Text, View, TextInput, StyleSheet } from "react-native";
export default function AwareScrollView() {
const [_, setText] = useState("");
return (
<View style={styles.main}>
<KeyboardAwareScrollView>
<View style={styles.contentContainer}>
<TextInput
style={styles.contentText}
multiline
value={_}
onChangeText={(value) => setText(value)}
scrollEnabled={false}
/>
</View>
</KeyboardAwareScrollView>
</View>
);
}
export const styles = StyleSheet.create({
safeAreaView: {
flex: 1,
},
main: {
flex: 1,
marginBottom: 0,
},
contentContainer: {
padding: 15,
flexGrow: 1,
},
contentText: {
width: "100%",
backgroundColor: "#bcbcbc",
flex: 1,
fontSize: 16,
minHeight: 60,
textAlignVertical: "top",
},
});
Steps to reproduce
- Type a long message in multiline input (you can simply press Enter/move to the next line to speed up the process)
- When TextInput gets obscured by keyboard scroll till the bottom to make sure the bottom of TextInput is visible
- Start to type a long message (you can use predictive text to speed up the process)
- When text goes to a new line
ScrollViewsuddenly scrolls to top
Expected result is that ScrollView should remain its position.
React Native Version
0.76.2
Affected Platforms
Runtime - iOS
Output of npx react-native info
System:
OS: macOS 15.1
CPU: (10) arm64 Apple M1 Pro
Memory: 118.81 MB / 32.00 GB
Shell:
version: "5.9"
path: /bin/zsh
Binaries:
Node:
version: 20.18.0
path: ~/.nvm/versions/node/v20.18.0/bin/node
Yarn:
version: 1.22.22
path: ~/.nvm/versions/node/v20.18.0/bin/yarn
npm:
version: 10.8.2
path: ~/.nvm/versions/node/v20.18.0/bin/npm
Watchman:
version: 2024.10.21.00
path: /opt/homebrew/bin/watchman
Managers:
CocoaPods:
version: 1.14.3
path: /usr/local/bin/pod
SDKs:
iOS SDK:
Platforms:
- DriverKit 24.1
- iOS 18.1
- macOS 15.1
- tvOS 18.1
- visionOS 2.1
- watchOS 11.1
Android SDK: Not Found
IDEs:
Android Studio: 2024.2 AI-242.23339.11.2421.12483815
Xcode:
version: 16.1/16B40
path: /usr/bin/xcodebuild
Languages:
Java:
version: 17.0.9
path: /usr/bin/javac
Ruby:
version: 2.7.6
path: /Users/kirylziusko/.rbenv/shims/ruby
npmPackages:
"@react-native-community/cli":
installed: 15.0.1
wanted: 15.0.1
react:
installed: 18.3.1
wanted: 18.3.1
react-native:
installed: 0.76.2
wanted: 0.76.2
react-native-macos: Not Found
npmGlobalPackages:
"*react-native*": Not Found
Android:
hermesEnabled: true
newArchEnabled: false
iOS:
hermesEnabled: true
newArchEnabled: false
Stacktrace or Logs
I don't have any logs, bug from what I debugged in XCode methods like `scrollToOffset`/`scrollToEnd`/`scrollViewShouldScrollToTop` are not getting called.
Reproducer
Screenshots and Videos
https://github.com/user-attachments/assets/48078f8b-a1cc-42c2-8637-deeaa5a28346
Guía de contribución
Primeros pasos
- Lee el issue completo y luego la guía de contribución del proyecto.
- Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
- Haz un fork del repositorio y trabaja en una rama.
- Abre un pull request que haga referencia al número del issue.
Línea de trabajo
Empieza ejecutando el reproductor vinculado en example/src/screens/Examples/AwareScrollView/index.tsx en iOS con React Native 0.76.2, usando el TextInput multilínea dentro de ScrollView descrito en el issue. Inspecciona el comportamiento de ScrollView y TextInput cuando el input crece mientras se ha desplazado cerca de la parte inferior. La tarea está terminada cuando ScrollView permanece en su posición actual al alcanzar TextInput una nueva línea.
Escrito por el modelo de indexación a partir del texto del issue.
Evaluación
- Stack tecnológico
- ios, react-native, typescript
- Área
- mobile
- Tipo de issue
- Error
- Dificultad
- 4/5
- Tiempo estimado
- 3-5 días
- Estado de actividad
- Estancado
- Claridad
- Bastante claro
- Aptitud para principiantes
- 45/100