useNavigation

useNavigation is a hook that gives access to navigation object. It's useful when you cannot pass the navigation object as a prop to the component directly, or don't want to pass it in case of a deeply nested child.

The useNavigation hook returns the navigation object of the screen where it's used:

import * as React from 'react';
import { Button } from 'react-native';
import { useNavigation } from '@react-navigation/native';

function MyBackButton() {
  const navigation = useNavigation();

  return (
    <Button
      title="Back"
      onPress={() => {
        navigation.goBack();
      }}
    />
  );
}

See the documentation for the navigation object for more info.

Using with class component

You can wrap your class component in a function component to use the hook:

class MyBackButton extends React.Component {
  render() {
    // Get it from props
    const { navigation } = this.props;
  }
}

// Wrap and export
export default function(props) {
  const navigation = useNavigation();

  return <MyBackButton {...props} navigation={navigation} />;
}