// 3. Consume in any child function ThemedComponent() const theme = React.useContext(ThemeContext); return <Text style= color: theme === 'dark' ? 'white' : 'black' >Hello</Text>;
State persists across re-renders; updating state triggers a re-render. 2. useEffect – Handling Side Effects Goal: Replace lifecycle methods ( componentDidMount , componentDidUpdate , componentWillUnmount ). The Complete React Native Hooks Course
import useNavigation, useRoute, useFocusEffect from '@react-navigation/native'; function ProfileScreen() const navigation = useNavigation(); const route = useRoute(); const userId = route.params; State persists across re-renders