Dependencies compile 'com.squareup.retrofit2:retrofit:2.4.0' compile 'com.squareup.retrofit2:converter-gson:2.4.0' configurations.all { resolutionStrategy.force 'com.android.support:support-annotations:23.1.0' } 1. Create Model Class + getters Setters 2. Create Layout 3. Create RetrofitClient public class RetrofitClient { private static Retrofit retrofitClient = null; public static Retrofit getRetrofitClient(String baseurl) { if(retrofitClient == null){ retrofitClient = new Retrofit.Builder() .baseUrl(baseurl) .addConverterFactory(GsonConverterFactory.create()).build(); } return retrofitClient; } } 4...