Complete React Native Hooks Course: The

fetchData(); return () => abortController.abort(); , [url]);

if (loading) return <ActivityIndicator size="large" />; return ( <View> <Text>JSON.stringify(data)</Text> </View> );

src/ ├── hooks/ │ ├── useFetch.js │ ├── useDebounce.js │ └── useFavorites.js (useReducer based) ├── contexts/ (ThemeContext, FavoritesContext) ├── screens/ (FeedScreen, DetailScreen, FavoritesScreen) └── components/ (NewsCard, SearchBar) ✅ Core hooks: useState , useEffect , useContext ✅ Performance hooks: useCallback , useMemo , React.memo ✅ Refs: useRef for mutable values and DOM access ✅ Advanced: useReducer , custom hooks, navigation hooks ✅ Rules of hooks – no conditional calls ✅ Testing & debugging – DevTools, unit tests ✅ Real-world patterns – infinite scroll, debounced search, cleanup functions ✅ Final project – fully functional React Native app using hooks exclusively The Complete React Native Hooks Course

// 1. Create context const ThemeContext = React.createContext('light'); // 2. Provide value at a top level export default function App() return ( <ThemeContext.Provider value="dark"> <ThemedComponent /> </ThemeContext.Provider> );

return <Button title="Go back" onPress=() => navigation.goBack() />; fetchData(); return () =&gt; abortController

return () => clearInterval(intervalRef.current); , []);

export default function Counter() const [state, dispatch] = useReducer(reducer, initialState); return () =&gt

useFocusEffect( useCallback(() => // Reload data when screen comes into focus loadUserData(userId); return () => console.log('Screen unfocused'); , [userId]) );

// Usage in component function UserList() const data, loading, error = useFetch('https://jsonplaceholder.typicode.com/users'); if (loading) return <ActivityIndicator />; if (error) return <Text>Error: error</Text>; return (/* render data */);