Shrotam Informatics India Android App Developer Interview Questions and Answers

Q1. Scope functions in kotlin
Ans. 
Scope functions in Kotlin are functions that allow you to execute a block of code within the context of an object.
• There are five scope functions in Kotlin: let, run, with, apply, and also.

• Each scope function has a specific use case and can help improve code readability and reduce boilerplate code.

• Scope functions can be used to perform operations on an object and return a result or modify the object itself.

• For example, ...read more
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Q2. LazyRow vs RecyclerView
Ans. 
LazyRow is a Jetpack Compose component for displaying horizontally scrolling lists, while RecyclerView is a traditional Android view for displaying large data sets efficiently.
• LazyRow is part of Jetpack Compose, RecyclerView is part of the Android framework

• LazyRow is more declarative and easier to use for simple lists, RecyclerView is more powerful and customizable for complex lists

• LazyRow automatically handles recycli...read more
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Q1. Explain activity life cycle
Ans. 
Activity life cycle refers to the stages an activity goes through from creation to destruction.
• An activity is created using onCreate() method

• It becomes visible using onStart() method

• It becomes interactive using onResume() method

• It goes to background using onPause() method

• It becomes invisible using onStop() method

• It gets destroyed using onDestroy() method
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Q2. What is difference between abstract class and interface
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Abstract class is a class that can have both abstract and non-abstract methods while interface only has abstract methods.
• Abstract class can have constructors while interface cannot

• A class can implement multiple interfaces but can only inherit from one abstract class

• Abstract class can have instance variables while interface cannot

• Abstract class can provide default implementation for some methods while interface cannot

• Ex...read more
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Q1. Why are you looking for a change?
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Q2. Tell me about yourself.
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Q1. What is intent?
Ans. 
Intent is a messaging object used to request an action from another app component.
• Intent is used to start activities, services, and broadcast receivers in Android.

• It can also be used to pass data between components.

• There are two types of intents: explicit intents and implicit intents.

• Explicit intents specify the component to start by name.

• Implicit intents specify the action to perform and let the system find the approp
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Q2. What is work manager?
Ans. 
Work Manager is an Android Jetpack library used for managing deferrable, asynchronous tasks.
• Work Manager is part of the Android Jetpack library.

• It is used for managing deferrable, asynchronous tasks that need to run even if the app is in the background.

• Work Manager provides various constraints and options for scheduling tasks, such as network availability, charging status, and more.

• It is recommended for tasks that are ...read more
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Q1. Agile, data class, how to initialize a class in activity?, dagger, difference between bind and provides annotation, unit test using mockito and junit
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There are 90 questions which are aptitude and reasoning and all, within 90 minutes of time we have solved all the problems.

There 2 coding questions there are easy level only in my opinion, within 1 hour we have solve.

Q1. Indrouce about yourself
Ans. 
I am a passionate Android App Developer with 5 years of experience in creating user-friendly and innovative mobile applications.
• 5 years of experience in Android app development

• Proficient in Java, Kotlin, and Android Studio

• Strong understanding of UI/UX design principles

• Experience with RESTful APIs and third-party libraries

• Published apps on Google Play Store
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Q2. What are projects you have done
Ans. 
I have developed a shopping app, a fitness tracker app, and a social media app.
• Developed a shopping app with user-friendly interface

• Created a fitness tracker app to monitor daily activities

• Designed a social media app with real-time messaging feature
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Q3. What are skills you had
Ans. 
I have strong skills in Java, Android Studio, UI/UX design, and problem-solving.
• Proficient in Java programming language

• Experience with Android Studio and Android app development

• Knowledge of UI/UX design principles

• Strong problem-solving skills
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They give some topics related to present situation like in my GD in 2020 co. HR give topics related to that situation in our country like difference between offline education and online education system. and covid-19 pandemic related topics.

Q1. Tell me About your self ?
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Q2. What do you know about this job position ?
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Q3. What is your favourite colour ? Can i know the speciality of your favourite colour ?
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Q4. Who inspired you to go to job daily and work hard ?
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Q1. All types of test steeps
Ans. 
Types of test steps in software testing
• Unit testing - testing individual units or components of the software

• Integration testing - testing how different units or components work together

• System testing - testing the entire system as a whole

• Acceptance testing - testing if the software meets the requirements and is ready for release

• Regression testing - testing to ensure that changes or updates to the software did not intro...read more
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