React Native Development: Common Interview Scenarios and Solutions

Which method is considered secure for storing tokens and sensitive user data in a React Native app?

If your React Native app crashes only in the Android release build but works fine in debug mode, what is the first step you should take to identify the cause?

How can you implement a 5-step onboarding flow with navigation that depends on the user's input in React Native?

What is a recommended approach to identify and fix memory leaks caused by repeatedly opening and closing modals in a React Native app?

To efficiently handle real-time chat updates in a React Native app, which technology stack and handling approach is recommended?

When a React Native feed screen drops frames while scrolling videos and images, what optimization methods should be applied?

What is an effective approach to implement dark mode with runtime switching across many React Native components?

How would you structure a monorepo for scaling a React Native app to support multiple teams working on shared and mobile-specific code?

If push notifications work on Android but fail silently on iOS, what should you check first?

Which steps are essential to support deep links and universal links in a React Native app on both Android and iOS?

What challenges should you anticipate when migrating a React Native CLI app to Expo?

How can you reduce crashes in an Android app on low-RAM devices during image-heavy flows?

What is the recommended plan to implement biometric authentication (FaceID/Fingerprint) in a React Native application?

How can you integrate a third-party native SDK that doesn’t natively support React Native?

What is a good strategy to handle AsyncStorage migration issues and prevent data loss after app updates?

When deep links work on Android but not on iOS, what are common misconfigurations to check?

How should you test a React Native component that uses camera functionality?

What must you do to support RTL (Right-to-Left) languages such as Arabic or Hebrew in React Native?

If a Redux store becomes bloated with too much UI-related temporary state, what refactoring strategy should you use?

What are key challenges when implementing Code Push (OTA updates) in a React Native app, and how should you handle them?