Applaunch Mobile Application Developer Interview Questions and Answers

Aptitude round contains basic aptitude questions

In coding round string operation are important

Q1. It is all about your skills mentioned in the resume
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Q1. Asked about react native concepts like state, props, class and functional components, pure components, HOC, redux, Axios, responsive UI, security(handling token)
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Q1. About git, own libraries those u have written
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Q1. What are your salary expectations?
Ans. 
I am open to discussing salary based on the responsibilities and requirements of the position.
• I am flexible and open to negotiation.

• I would like to be compensated fairly for my skills and experience.

• I am interested in discussing the overall compensation package, including benefits and opportunities for growth.

• I am confident that we can come to a mutually beneficial agreement.
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Q2. What is your family background?
Ans. 
My family background is diverse and multicultural, with members from different professions and backgrounds.
• My father is a software engineer and my mother is a teacher.

• I have two siblings, one is studying medicine and the other is pursuing a career in finance.

• We have relatives living in different countries, which has exposed me to various cultures and perspectives.
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Q3. Share details of your previous job.
Ans. 
I worked as a Mobile Application Developer at XYZ Company.
• Developed and maintained mobile applications for iOS and Android platforms.

• Collaborated with cross-functional teams to gather requirements and design user-friendly interfaces.

• Implemented new features and enhancements to existing applications.

• Performed code reviews and debugging to ensure high-quality and bug-free applications.

• Optimized mobile applications for pe...read more
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Q4. Why are you looking for a change?
Ans. 
Looking for new challenges and growth opportunities in mobile app development.
• Seeking a more challenging role to enhance my skills and knowledge in mobile app development.

• Interested in exploring new technologies and trends in the mobile app industry.

• Want to work in a dynamic and innovative environment that fosters creativity and learning.

• Seeking better career prospects and growth opportunities.

• Looking for a company wit...read more
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Q5. Tell me about yourself.
Ans. 
I am a mobile application developer with 5 years of experience in developing iOS and Android applications.
• 5 years of experience in mobile application development

• Proficient in iOS and Android development

• Strong knowledge of programming languages such as Swift, Java, and Kotlin

• Experience in developing user-friendly and intuitive mobile interfaces

• Familiarity with mobile app testing and debugging processes

• Ability to work in
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Technical round with a few coding questions

Q1. Technical round with Android questions and situation and logic based scenarios. Layouts, views, view groups, constraint layout, bugs, exception and how to handle exception. Data sharing between application...read more
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Q1. Salary expectations, any offer in hand.
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Q1. Salary discussion, negotiations and if holding any offer.
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Q1. I interned here in my second-year summer. I got selected on the basis of resume shortlisting.
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Q2. There was no technical round
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Q1. Difference between functional and class based component
Ans. 
Functional components are stateless and use functional programming concepts, while class components are stateful and use object-oriented programming concepts.
• Functional components are simpler and easier to read and test.

• Class components have access to lifecycle methods and state.

• Functional components are preferred for simple UI components, while class components are preferred for complex UI components.

• Functional compon...read more
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Q2. Have you ever worked on native components
Ans. 
Yes, I have worked on native components.
• I have experience in creating custom native modules for React Native apps.

• I have integrated native libraries like Firebase, Google Maps, and Camera into React Native apps.

• I have used native UI components like TextInput, ScrollView, and FlatList in React Native apps.

• I have also worked with native modules for iOS and Android separately.
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Q3. What are hooks and what are the hooks you have used
Ans. 
Hooks are functions that allow you to use state and other React features without writing a class.
• useState() - for managing state in functional components

• useEffect() - for performing side effects in functional components

• useContext() - for consuming context in functional components

• useReducer() - for managing complex state in functional components

• useCallback() - for memoizing functions in functional components
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Q1. Asked about projects and some questions based on it
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Q2. What is Hermes engine
Ans. 
Hermes is a JavaScript engine optimized for React Native apps.
• Developed by Facebook to improve app startup time and reduce memory usage.

• Uses ahead-of-time compilation to convert JavaScript code into bytecode.

• Supports ES6 syntax and is compatible with most React Native libraries.

• Can be enabled in React Native projects by adding a single line to the configuration file.
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Q3. Are you familiar with new architecture of React native
Ans. 
Yes, I am familiar with the new architecture of React Native.
• The new architecture of React Native is based on Fabric, a C++ UI framework.

• It separates the UI rendering from the JavaScript thread, resulting in improved performance.

• It also introduces new features like TurboModules and JSI for better native module integration.

• The new architecture is being gradually rolled out in React Native releases.

• It requires some chang...read more
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Q1. Core data , Push notifications
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Q2. Problem solving on iOS project
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Q1. Data structure , Autolayout
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