Navigate back to the top of the current tab by pressing it again in TabNavigator within a React Native application

Question

Navigate back to the top of the current tab by pressing it again in TabNavigator within a React Native application

I am working on a react native app that utilizes a BottomTabNavigator. The issue I am facing is that when I scroll down a FlatList in the current tab, then switch to another tab and navigate back again, the scroll position remains at the bottom. How can I automatically scroll to the top of the current tab after navigation?

This is what my code looks like:

navigation.js

 import {createBottomTabNavigator} from "react-navigation";
     .....................................

    name: {
    screen: createBottomTabNavigator({
      first: { screen: firstNavigation },
      second: { screen: secondNavigation },
      third: { screen: thirdNavigation }
    })
  }

I have three tabs named first, second, and third. The issue occurs when navigating between the first and second tabs where the FlatList component is located.

second.js

        <View>
          <FlatList
            data={this.causes}
            keyExtractor={this._keyExtractor}
            renderItem={this._onPress}
            contentContainerStyle={styles.flatListContainer}
          />
        </View>

javascript react-native react-native-flatlist

Answer 1

Answer №1

One approach to consider is maintaining focus on the active screen, similar to how it's done here

 componentDidMount() {
    const { navigation } = this.props;
    this.focusListener = navigation.addListener('didFocus', () => {
      // The screen is focused
      // Execute any actions needed
    });
  }

  componentWillUnmount() {
    // Remove the event listener
    this.focusListener.remove();
  }

In order to reference your FlatList component:

 <FlatList
        ref={(ref) => { this._flatList = ref; }}
        data={this.causes}
        keyExtractor={this._keyExtractor}
        renderItem={this._onPress}
        contentContainerStyle={styles.flatListContainer}
      />

If the focused screen contains the FlatList component, you can utilize the scrollToIndex method:

this._flatList.scrollToIndex({animated: true, index: 0});

Answer 2

One approach to consider is maintaining focus on the active screen, similar to how it's done here

 componentDidMount() {
    const { navigation } = this.props;
    this.focusListener = navigation.addListener('didFocus', () => {
      // The screen is focused
      // Execute any actions needed
    });
  }

  componentWillUnmount() {
    // Remove the event listener
    this.focusListener.remove();
  }

In order to reference your FlatList component:

 <FlatList
        ref={(ref) => { this._flatList = ref; }}
        data={this.causes}
        keyExtractor={this._keyExtractor}
        renderItem={this._onPress}
        contentContainerStyle={styles.flatListContainer}
      />

If the focused screen contains the FlatList component, you can utilize the scrollToIndex method:

this._flatList.scrollToIndex({animated: true, index: 0});

Answer 3

Answer №2

Recently, I encountered a similar issue and was able to find a solution that worked for me:

import { ScrollView } from 'react-native';
import React, { useEffect,  } from 'react';

const myCustomComponent = ({navigation}) => {

const scrollReference = React.useRef();

useEffect(() => {
    const isFocused = navigation.addListener('focus', () => {
        scrollReference.current.scrollTo({ 
            y: 0, 
            animated: false, 
        });
    });
    return isFocused;
}, [navigation]);

return <ScrollView ref={scrollReference}>{/* Content Goes Here */}</ScrollView>
};

export default myCustomComponent;

If you are utilizing React Class Component, remember to clean up the listener with:

componentWillUnmount() {
  this.isFocused();
}

Refer to the documentation for additional information: https://reactnavigation.org/docs/navigation-events/#navigationaddlistener

Answer 4

Recently, I encountered a similar issue and was able to find a solution that worked for me:

import { ScrollView } from 'react-native';
import React, { useEffect,  } from 'react';

const myCustomComponent = ({navigation}) => {

const scrollReference = React.useRef();

useEffect(() => {
    const isFocused = navigation.addListener('focus', () => {
        scrollReference.current.scrollTo({ 
            y: 0, 
            animated: false, 
        });
    });
    return isFocused;
}, [navigation]);

return <ScrollView ref={scrollReference}>{/* Content Goes Here */}</ScrollView>
};

export default myCustomComponent;

If you are utilizing React Class Component, remember to clean up the listener with:

componentWillUnmount() {
  this.isFocused();
}

Refer to the documentation for additional information: https://reactnavigation.org/docs/navigation-events/#navigationaddlistener

Navigate back to the top of the current tab by pressing it again in TabNavigator within a React Native application

Answer №1

Answer №2

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