What is the difference between Activity and Fragments? What is the Interface? What are SOLID Principles? What is the difference between interfaces and abstract classes? What is LiveData and how to use livedata? What is Kotlin Coroutines? What type local storage techniques you have used? When to use shared preferences and Sqlite? How to call Rest API? What is ViewGroup? What are the different types of layouts? What are the advantages of constraint layouts over other layouts? Have you ever used Jetpack Compose? What is Recyclerview? Why use Recyclerview over Listview? etc.
