React Native

The skill is based on React Native, generated at 2026-01-31.

React Native lets you build mobile apps using only JavaScript. It uses the same design as React, letting you compose a rich mobile UI from declarative components. With React Native, you don't build a "mobile web app", an "HTML5 app", or a "hybrid app". You build a real mobile app that's indistinguishable from an app built using Objective-C or Java.

Core References

Topic	Description	Reference
Core Components	View, Text, Image, TextInput, ScrollView - fundamental UI building blocks	core-components
Layout with Flexbox	Flexbox layout system for positioning and aligning components	core-layout
Styling	StyleSheet API for creating and organizing component styles	core-styling

Features

Animations

Topic	Description	Reference
Animated API	Create fluid animations with Animated.Value, timing, spring, and gesture integration	features-animations
Easing Functions	Easing functions for custom animation curves and natural motion	features-easing

User Interactions

Topic	Description	Reference
Touch Handling	Pressable, Touchable components, and gesture responders for handling user input	features-touch-handling
Keyboard	Keyboard API for handling keyboard events, dismissing keyboard, and KeyboardAvoidingView	features-keyboard

UI Components

Topic	Description	Reference
Additional Components	Modal, Switch, ActivityIndicator, RefreshControl for dialogs, toggles, loading states	components-ui

Data Display

Topic	Description	Reference
Lists	FlatList and SectionList for efficiently rendering large, scrollable lists	features-lists

Styling and Theming

Topic	Description	Reference
Colors and Theming	Colors, PlatformColor, Appearance API for theming and dark mode support	features-colors-theming

Platform Integration

Topic	Description	Reference
Platform APIs	Linking, Dimensions, Platform detection, AppState, and native integrations	features-platform-apis
Network	Fetch API for making HTTP requests and handling network responses	features-network
StatusBar	Control status bar appearance, style, and visibility	features-statusbar
Share & Vibration	Native share dialog and device vibration for haptic feedback	features-share-vibration
Timers	setTimeout, setInterval, requestAnimationFrame for scheduling and delays	features-timers
Platform-Specific APIs	Android (PermissionsAndroid, ToastAndroid, DrawerLayoutAndroid) and iOS (ActionSheetIOS)	features-platform-specific

Accessibility

Topic	Description	Reference
Accessibility	Screen reader support, accessibility labels, roles, and states	features-accessibility

Advanced Styling

Topic	Description	Reference
Transforms	2D and 3D transforms for rotation, scale, translation, and skew	features-transforms

Best Practices

Topic	Description	Reference
Performance	Performance optimization techniques, profiling, and common bottlenecks	best-practices-performance
Debugging	Debugging tools, Dev Menu, LogBox, React Native DevTools, and debugging techniques	best-practices-debugging

Key Recommendations

• Use StyleSheet.create() for all styles instead of inline objects
• Use FlatList instead of ScrollView for long lists
• Enable useNativeDriver for animations when possible (transform, opacity)
• Use Pressable for new touch interactions (preferred over Touchable components)
• Handle platform differences with Platform.select() and Platform.OS
• Test on real devices - simulator behavior may differ from actual devices
• Optimize list performance with getItemLayout for fixed-height items
• Use TypeScript for better type safety and developer experience