Question 1

Which property should be used to determine if the application is running on iOS or Android?

Accepted Answer

Platform.OS returns a string indicating the current operating system: 'ios' for iOS and 'android' for Android. This property is the most direct method to check the running platform and adapt the application behavior accordingly.

Question 2

What is the correct syntax to use Platform.select to apply different styles based on the platform?

Accepted Answer

Platform.select accepts an object with 'ios', 'android' and optionally 'default' keys. This method allows defining platform-specific values in a declarative and concise way, which is particularly useful for styles and configurations.

Question 3

How to create a component with different implementations for iOS and Android using file extensions?

Accepted Answer

React Native automatically detects files with .ios.js and .android.js extensions during bundling. By creating two files like Button.ios.js and Button.android.js, importing 'Button' will automatically load the appropriate version based on the platform, without explicit conditions in the code.

Platform-Specific Code

Which property should be used to determine if the application is running on iOS or Android?

Câu trả lời

What is the correct syntax to use Platform.select to apply different styles based on the platform?

Câu trả lời

How to create a component with different implementations for iOS and Android using file extensions?

Câu trả lời

Which Platform property allows checking the operating system version?

What is the main advantage of using file extensions (.ios.js/.android.js) compared to Platform.select?

Các chủ đề phỏng vấn React Native khác

JavaScript Essentials

React Fundamentals

React Native Basics

React Hooks

TypeScript for React & React Native

React Native Components & API

React Native Styling & Layout

React Native Navigation

React Native State Management

React Native Networking & API

Data Persistence

Forms & Validation

React Native Animations

Native Modules & Bridge

Permissions & Device APIs

Push Notifications

React Native Testing

React Native Debugging

Build & Deployment

Expo vs React Native Bare

Performance Optimization

Memory Management

Architecture Patterns

React Native New Architecture

Security Best Practices

Offline-First Architecture

React Native CI/CD

Monorepo & Code Sharing

Advanced Topics

App Lifecycle & Background Execution

Authentication & Session Management

Monitoring & Crash Reporting

Nắm vững React Native cho lần phỏng vấn tiếp theo