Junior android Application Developer Interview Questions and Answers

Android components are building blocks of an Android app. Fragments are reusable UI components in Android.

• Android components include activities, services, broadcast receivers, and content providers.

• Fragments are like modular sections of an activity, allowing for more flexible and dynamic UI designs.

• Fragments can be reused across multiple activities, making them a powerful tool for building complex UIs.

• Example: A news app might use a fragment for the list of articles and anoth...read more

Room database is a persistence library that provides an abstraction layer over SQLite to allow for more robust database access while following best practices.

• Room database simplifies database interactions by providing compile-time verification of SQL queries.

• It consists of three main components: Entity, DAO (Data Access Object), and Database.

• Example: @Entity annotation defines a SQLite table, @Dao annotation defines database operations, @Database annotation defines the databa...read more