What differences are there in Activities and Fragments, what happens when you rotate the screen. What is retain instance, what happens when restoring state
Lead Android Developer Interview Questions
4,303 lead android developer interview questions shared by candidates
How threads are working in Android and CPU? What are the differences between thread and coroutines? What is Clean Architecture? What is Polymorphism?
Same old standard Android questions
errors and exceptions, volatile keyword, hashmap collision, process death, all basics of Kotlin, jetpack library, compose, internal working of ViewModel, etc.
The interviewer started with Java questions like error vs exceptions, volatile keyword and its use, and multithreading. He then asked a lot of kotlin questions and android questions for 1.5 hour. In the last 5 min, he asked me to write kotlin code to find list of duplicate elements in an array.
heap memory, Shared view model, thread safety, Sync, Set & Post, Raw query in Room DB, MVVM, Clean architecture, Code coverage, Jetpack components like Work manager, and View Model. Architecture patterns, Kotlin functions like higher-order, and inline.
Machine coding round for search engine
1. Shortest distance - graph 2. Couroutine - concepts 3.MVP vs MVVM 4. Hilt/ Dagger 5. Network Interceptor
Java: Core, Collections, JVM, etc Kotlin: Nothing vs Any vs Unit, val vs const val, data class, high-ordered functions, inline functions, delegation, collections, and others Android: Main android components, Service types, View groups, Recycler View adapters and others
All concepts of Android and mainly on Map.
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