How do you use Retrofit for network calls in Android?

Using Retrofit for network calls in Android involves defining an interface that specifies the HTTP methods you want to use (such as GET, POST, etc.) along with the required endpoints and parameters. This interface allows you to define your API endpoints in a structured manner.

Once the interface is created, you instantiate Retrofit, which acts as a client to make network requests. By providing the base URL and other configurations (like converters for JSON serialization), you enable Retrofit to prepare and execute the network calls based on the defined interface.

This approach abstracts the complexity of handling HTTP calls and responses, making the code cleaner and easier to manage. It encourages a clear separation of concerns by defining a contract (the API interface) that the application's logic can rely on. This modularity is a key benefit of using Retrofit for network communication, as it allows for better testing and easier maintenance in your application.