React Native Styling & Layout
Flexbox, absolute positioning, responsive design, safe area, platform-specific styles
1What is the default flexDirection in React Native?
What is the default flexDirection in React Native?
Risposta
In React Native, flexDirection defaults to 'column', unlike on the web where it defaults to 'row'. This means child elements are arranged vertically from top to bottom by default. This difference reflects typical mobile interface conventions, where vertical layouts are more common.
2How to create a reusable style in React Native?
How to create a reusable style in React Native?
Risposta
StyleSheet.create() is the recommended method for creating styles in React Native. It allows defining a style object that can be reused across multiple components. This approach optimizes performance by validating styles once at startup and referencing them by ID rather than recreating objects on each render.
3Which property to use to center an element both horizontally AND vertically within its container?
Which property to use to center an element both horizontally AND vertically within its container?
Risposta
To center an element in both axes, combine justifyContent: 'center' (main axis) and alignItems: 'center' (cross axis). With the default flexDirection ('column'), justifyContent centers vertically and alignItems centers horizontally. These two properties work together to achieve perfect centering.
What is the default unit of measurement used in React Native for dimensions?
Which property allows positioning an element absolutely relative to its parent?
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Altri argomenti di colloquio React Native
JavaScript Essentials
React Fundamentals
React Native Basics
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TypeScript for React & React Native
React Native Components & API
React Native Navigation
React Native State Management
React Native Networking & API
Data Persistence
Forms & Validation
React Native Animations
Native Modules & Bridge
Platform-Specific Code
Permissions & Device APIs
Push Notifications
React Native Testing
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Build & Deployment
Expo vs React Native Bare
Performance Optimization
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Architecture Patterns
React Native New Architecture
Security Best Practices
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Authentication & Session Management
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