Context API w/ React Navigation (React Native) - react-native

Question

I'm trying to wrap my mind around using Context in my React Native app that uses React Navigation. I think I am way off on this one. I am simply trying to pass the name of a book to my entire app through the navigation stacks.
App.js
const BookContext = React.createContext();
class BookProvider extends Component {
state = {
name: 'book name'
}
render() {
return (
<BookContext.Provider value={{
name: this.state.name
}}>
{this.props.children}
</BookContext.Provider>
)
}
}
export default function App() {
return (
<BookProvider>
<BookContext.Consumer>
{({ name }) => (<Routes name={name} />)} //my react navigation stacks component
</BookContext.Consumer>
</BookProvider>
);
}
and in Book.js (a component in the navigation stack)
componentDidMount() {
console.log(this.context)
}
returns an empty object {}
Any help is appreciated!

Answer 1

To save you some Googling, this is the correct approach: https://github.com/react-navigation/react-navigation/issues/935#issuecomment-359675855
Another way, if you're using a relatively new version of React, and your component in question at that route is a functional component, is to use the useContext React hook.
e.g.
import React, { useContext } from 'react'
import { BookContext } from '/path/to/BookContext'
function BookConsumerComponent() {
const { name } = useContext(BookContext);
console.log(name);
}