How can I use Retrofit for networking in my Android app?

How can I use Retrofit for networking in my Android app?

You can use Retrofit by adding it to your project dependencies, creating an API interface, and then making network calls.

What dependencies do I need to add for Retrofit?

You need to add 'implementation 'com.squareup.retrofit2:retrofit:2.9.0' and 'implementation 'com.squareup.retrofit2:converter-gson:2.9.0' in your build.gradle file.

Can you show me an example of an API interface?

Sure! Here's a simple example:

public interface ApiService {
    @GET("users")
    Call<List<User>> getUsers();
}

How do I make a network call using Retrofit?

You can create an instance of Retrofit, implement the API interface, and then call the method like this:

Retrofit retrofit = new Retrofit.Builder()
        .baseUrl("https://api.example.com/")
        .addConverterFactory(GsonConverterFactory.create())
        .build();

ApiService apiService = retrofit.create(ApiService.class);
Call<List<User>> call = apiService.getUsers();
call.enqueue(new Callback<List<User>>() {
    @Override
    public void onResponse(Call<List<User>> call, Response<List<User>> response) {
        // Handle the response
    }

    @Override
    public void onFailure(Call<List<User>> call, Throwable t) {
        // Handle the error
    }
});