Saving and reading data from a local database

We are going to build up on the Pets app, which displays a list of cute cats. We will save our cute cats in a local database, Room, which is a part of the Android Jetpack libraries and provides a wrapper and abstraction layer over SQLite. We will also use the repository pattern to abstract away the data source from ViewModel. The Room database provides an abstraction layer over SQLite to allow fluent database access while harnessing the full power of SQLite. It also has inbuilt support for Kotlin coroutines and flows to allow for asynchronous database access. Room is also compile-time safe and hence any errors in SQL queries are caught at compile time. It allows us to do all this with concise code.

To use Room in our project, we need to add its dependency to our libs.versions.toml file. Let us start by defining the Room version in the versions section as the following:

room = "2.5.2"

Next, let us add the dependencies in...