Master programming syntax, solve interactive challenges & run live code in Syntaxis Explore Arena →

menu_book Course Curriculum (React Native) expand_more

Core Components

View and Text StyleSheet Pressable Image ScrollView FlatList SectionList SafeAreaView

State and Navigation

useState form useEffect subscription useMemo expensive value useCallback handler Context provider React Navigation stack Route params Navigation tabs

Native Interaction

TextInput KeyboardAvoidingView Modal Alert Animated.Value PanResponder AppState Linking

Production

Platform.select PermissionsAndroid AsyncStorage Fetch API AbortController request RefreshControl Accessibility props React Native Testing Library

React Native / Native Interaction

AppState

Learn AppState in React Native through a focused explanation, a topic-specific example, an engineering warning, and a mastery check.

12 min read • Intermediate

react-native-023.ts

typescript

const current=useRef(AppState.currentState); AppState.addEventListener("change",next=>{current.current=next;});

What to watch

Content source & attribution

Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

AppState Mastery Check →