Foso

SampleRetrofitInterface api = SampleRetrofitInterface.retrofit.create(SampleRetrofitInterface.class);
        Call<List<Post>> call = api.getPostList();
 
        call.enqueue(new Callback<List<Post>>() {
            @Override
            public void onResponse(Call<List<Post>>call, Response<List<Post>> response) {
                Log.i("INFO", String.valueOf(response.body().size()));
 
 
            }

Foso

public class Post {
 
    int userId;
    int id;
    String title;
    String body;
 
    public Post(int userId, int id, String title, String body) {
        this.userId = userId;
        this.id = id;

Foso

[
 
    {
        "userId": 1,
        "id": 1,
        "title": "sunt aut facere repellat provident occaecati excepturi optio reprehenderit",
        "body": "quia et suscipit\nsuscipit recusandae consequuntur expedita et cum\nreprehenderit molestiae ut ut quas totam\nnostrum rerum est autem sunt rem eveniet architecto"
    },
    {
        "userId": 1,

Foso

public interface SampleRetrofitInterface {
@GET("/posts")
Call<List<Post>> getPostList();

@GET("/posts/{id}")
Call<Post> getSinglePost(@Path("id") int postId);

@GET("/posts/")
Call<Post> getSinglePostQuery(@Query("userId") int userId);

Foso

dependencies {
...
implementation 'com.android.support:appcompat-v7:27.0.2'
implementation 'com.android.support:recyclerview-v7:27.0.2'
implementation "com.jakewharton:butterknife:8.8.1"
annotationProcessor "com.jakewharton:butterknife-compiler:8.8.1"
}

Foso

project.ext {
  applicationId = "jensklingenberg.de.exampleexoplayer"
  compileSdk = 27
  targetSdk = 27
  minSdk = 21
  versionCode = 1
  versionName = "1.0"
  buildTools = '27.0.1'
  junitVersion = '4.12'
  appVersion = '1.0'

Foso

dependencies {
...
implementation "com.android.support:appcompat-v7:${supportLibVersion}"
implementation "com.google.android.exoplayer:exoplayer:${exoplayerVersion}"
implementation "com.jakewharton:butterknife:${butterknifeVersion}"
annotationProcessor "com.jakewharton:butterknife-compiler:${butterknifeVersion}"}

Foso

compileSdkVersion compileSdk
 defaultConfig {
applicationId applicationId
...
}

Foso

buildTypes {

debug {
buildConfigField "String", "API_BASE_URL", '"https://test.de/testing/api/v1/"'
...
}
release { 
buildConfigField "String", "API_BASE_URL", '"https://test.de/prod/api/v1/"'
...
}

Foso

new Retrofit.Builder().addConverterFactory(MoshiConverterFactory.create(moshi))
            .addCallAdapterFactory(new LiveDataCallAdapterFactory())
            .baseUrl(BuildConfig.API_BASE_URL)
            .client(App.getInstance().getOkHttpClient())
.build();