react native moving data with useContext - react-native

Question

this is a code from a tutorial about moving data with context the thing is the instructor is using 4.x navigator and since 4.x is not supported I tried to modify the navigation, but when I wrap the navigation with <BlogProvider></BlogProvider> nothing appears in the IndexScreen, as shown in picture 1.
and when i remove the <BlogProvider></BlogProvider> what I get is only this <Text>Index Screen</Text> and the Flatlist doesn't appear in the screen as shown in picture 2. .
and in both cases I get no error.
this is the App.js
import { StyleSheet, Text, View } from 'react-native';
import * as React from 'react';
import {NavigationContainer} from '#react-navigation/native';
import {createNativeStackNavigator} from '#react-navigation/native-stack';
import IndexScreen from './src/screens/IndexScreen';
import {BlogProvider} from './src/context/BlogContext';
const Stack = createNativeStackNavigator();
export default function App() {
return (
<BlogProvider>
<NavigationContainer>
<Stack.Navigator initialRouteName='IndexScreen'>
<Stack.Screen name='Blog' component={IndexScreen}/>
</Stack.Navigator>
</NavigationContainer>
</BlogProvider>
);
}
const styles = StyleSheet.create({});
this is the IndexScreen.js
import React, {useContext} from 'react';
import {Text, View, StyleSheet, FlatList} from 'react-native';
import BlogContext from '../context/BlogContext';
const IndexScreen = ()=>{
const blogPosts = useContext(BlogContext);
return (
<View>
<Text>Index Screen</Text>
<FlatList
data={blogPosts}
keyExtractor={(blogPost)=> blogPost.title}
renderItem={( { item } )=>{
<Text>{item.title}</Text>
}}
/>
</View>
);
};
const styles = StyleSheet.create({});
export default IndexScreen;
this is the BlogContextScreen.js
import React from 'react';
const BlogContext = React.createContext();
export const BlogProvider = ({ Children })=> {
const blogPosts = [{title: 'Blog Post #1'}, {title: 'Blog Post #2'}, {title: 'Blog Post #3'}];
return <BlogContext.Provider value={blogPosts}>
{Children}
</BlogContext.Provider>
};
export default BlogContext;
I will be glad for any support and again as you can see that I am still learning
Thank you in advance

Answer 1

The problem is not with the navigation. you have a syntax error in the BlogProvider component. the return block must be wrapped in parentheses:
import React from 'react';
const BlogContext = React.createContext();
export const BlogProvider = ({ children }) => {
const blogPosts = [
{ title: 'Blog Post #1' },
{ title: 'Blog Post #2' },
{ title: 'Blog Post #3' },
];
return (
<BlogContext.Provider value={blogPosts}>
{children}
</BlogContext.Provider>
);
};
export default BlogContext;

Answer 2

I found out that I forgot to add a return to the renderItem function
`const IndexScreen = ()=>{
const blogPosts = useContext(BlogContext);
return (
<View>
<Text>Index Screen</Text>
<FlatList
data={blogPosts}
keyExtractor={(blogPost)=> blogPost.title}
renderItem={( { item } )=>{
return <Text>{item.title}</Text>
}}
/>
</View>
)};`