Overview of React Native

Setting Up Development Environment

JSX Syntax

Components in React Native

React Native UI Components

Flex direction, alignItems, justifyContent

Responsive layouts for different screen sizes

Inline styles vs. StyleSheet

Platform-specific styles (Android vs iOS)

Managing colors, fonts, and spacing

Types of navigation: Stack, Tab, Drawer

Installing and configuring React Navigation

Stack navigation for screen transitions

Tab and Drawer navigation for app structure

Passing data between screens with navigation params

TextInput for text inputs

Button, Switch, Picker for user interactions

Using useState and useEffect for form handling

Form validation techniques

Handling user input with controlled and uncontrolled components

Requesting permissions in Android (camera, location, contacts)

Using Android APIs (e.g., geolocation, camera, storage)

Using libraries like react-native-camera, react-native-geolocation-service, etc.

Accessing native device APIs (location, battery, etc.)

Using React Native Debugger

Console logs and error handling

Debugging on Android Emulator/Device

Profiling and identifying performance bottlenecks

Optimizing rendering (e.g., FlatList, shouldComponentUpdate)

Memory management best practices

Local vs. Global State in React Native

Context API for simple global state management

Introduction to Redux

Setting up Redux in React Native

Actions, reducers, and store

Connecting Redux to React components

Fetch API and Axios for HTTP requests

Handling promises and async/await

Parsing and displaying JSON data in React Native

Redux-thunk for async actions

Redux-Saga

Best practices for handling API calls in React Native

Introduction to React Native's Animation API

Animated.View, Animated.Text

Sequence and parallel animations

Spring and timing animations

Gesture-based animations with react-native-gesture-handler

Using AsyncStorage for key-value storage

Using SQLite for relational data storage

Integrating Realm or WatermelonDB

Using Firebase for authentication and data storage

Firebase Realtime Database vs Firestore

Using FlatList for large data sets

React.memo and useMemo for performance

Minimizing re-renders

Unit tests with Jest

Snapshot testing

End-to-end testing with Detox

React Native Debugger, Flipper

Android Studio Profiler

Crashlytics and Sentry for monitoring