JOVI VENTURES Interview Questions, Process, and Tips for Freshers

React Native is an open-source UI software framework created by Meta Platforms, Inc. It is used to develop applications for Android, Android TV, iOS, macOS, tvOS, Web, Windows and UWP by enabling developers to use the React framework along with native platform capabilities.

Q1. How is user Input Handled in React Native
Ans. 
User input in React Native is handled through event handlers and state management.
• Event handlers are used to capture user input such as onPress, onChangeText, etc.

• State management is used to update the UI based on user input.

• Forms can be created using TextInput, Picker, Checkbox, etc.

• Validation can be done using libraries like Formik and Yup.
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Q2. List down Key Points to integrate React Native in an existing Android mobile application
Ans. 
Integrating React Native in an existing Android app
• Install React Native CLI and create a new project

• Add React Native code to existing Android project

• Configure Gradle to include React Native dependencies

• Use React Native components in existing Android code

• Test and debug the integrated app
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Q3. How is the entire React Native code processed to show the final output on a mobile screen
Ans. 
React Native code is processed by bundling, transpiling, and rendering components to show output on mobile screen.
• React Native code is bundled using tools like Metro bundler

• The bundled code is transpiled to JavaScript using Babel

• Components are rendered using the React Native bridge to native UI components

• The final output is displayed on the mobile screen
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Q4. Name core Components in React Native
Ans. 
Core components in React Native include View, Text, Image, ScrollView, and TextInput.
• View - container for other components

• Text - display text

• Image - display images

• ScrollView - scrollable container

• TextInput - input field for text
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Q5. Explain FlatList components, what are its key features along with a code sample ?
Ans. 
FlatList is a component in React Native used to render a scrollable list of items.
• FlatList is highly performant and efficient for rendering large lists of data.

• It supports both horizontal and vertical scrolling.

• It has built-in support for item separators and empty list messages.

• It supports dynamic loading of data as the user scrolls through the list.

• Example code: {item.titl
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