How to Implement Room Database CRUD in Android with RecyclerView (Step-by-Step Kotlin Guide)

In this blog, we will learn how to implement complete CRUD (Create, Read, Update, Delete) operations using Room Database in Android with Kotlin. This guide covers a practical implementation using RecyclerView to display data and perform real-time updates. We will build a simple user management feature where users can add, view, update, and delete records. The project uses modern Android development practices including Coroutines, LiveData for observing database changes, and a clean adapter-based RecyclerView setup. By the end of this tutorial, you will understand how to: Insert data into Room Database Observe and display data using LiveData Update existing records dynamically Delete items directly from RecyclerView Structure your code for better scalability class RoomDatabaseActivity : AppCompatActivity() { private lateinit var binding: ActivityRoomDatabaseBinding private lateinit var db: AppDatabase private lateinit var userAdapter: UserAdapter override fun onCreate(savedInstanceState