FetchingJsonActivity3.java

public class FetchingJsonActivity extends AppCompatActivity {

    @Inject
    UserService userService;
    private UserView someView;
    private Subscription subscription;

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

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


        subscription = userService.getUser("")
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(new Action1<User>() {
                    @Override
                    public void call(User user) {
                        userView.populate(user);
                    }
                }, new Action1<Throwable>() {
                    @Override
                    public void call(Throwable throwable) {
                        Log.e("getUser", "ooops, " + throwable.toString());
                    }
                });

    }


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

        subscription.unsubscribe();
    }
    
}