FetchingJsonActivity4.java

public class FetchingJsonActivity extends AppCompatActivity {

    @Inject
    UserService userService;
    private UserView someView;
    private CompositeSubscription compositeSubscription = new CompositeSubscription();

    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.id.user_view);
        someView = (UserView) findViewById(R.id.user);

        compositeSubscription.add(

                userService.getUser("someUserId")
                        .subscribeOn(Schedulers.io())
                        .observeOn(AndroidSchedulers.mainThread())
                        .subscribe(user -> userView.populate(user)
                                , throwable -> Log.e("getUser", "ooops, " + throwable.toString()))

        );

        compositeSubscription.add(

                userService.getUserFollowers("someUserId")
                        .subscribeOn(Schedulers.io())
                        .observeOn(AndroidSchedulers.mainThread())
                        .subscribe(followers -> followerView.populate(followers)
                                , throwable -> Log.e("getUser", "ooops, " + throwable.toString()))

        );

    }


    @Override
    protected void onStop() {
        super.onStop();

        compositeSubscription.clear();
    }

}