test.java

@BindView(R.id.button)
    AppCompatButton button;

    CompositeSubscription compositeSubscription;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_splash_reachout);

        ButterKnife.bind(this);

        compositeSubscription = new CompositeSubscription();


        /*Subscription testSubscription = RxView.clicks(button)
                .subscribe(aVoid -> {
                    makeApiCall();
                });*/

        AuthenticationAPI authApi = ReachoutServiceCreator.createService(AuthenticationAPI.class, null);

        RxView.clicks(button)
                .flatMap(aVoid -> authApi.verifyEmail("test@retrofit.com"))
                .observeOn(AndroidSchedulers.mainThread())
                .subscribe(verifyEmailResponse -> Log.i("TEST", "onNext: " + verifyEmailResponse.success),
                        throwable -> Log.e("TEST", "onError: " + throwable.getMessage(), throwable),
                        () -> Log.i("TEST", "completed"));

       // compositeSubscription.add(testSubscription);
    }

    private void makeApiCall() {
        AuthenticationAPI authApi = ReachoutServiceCreator.createService(AuthenticationAPI.class, null);
        authApi.verifyEmail("test@retrofit.com").observeOn(AndroidSchedulers.mainThread())
                .subscribe(verifyEmailResponse -> Log.i("TEST", "onNext: " + verifyEmailResponse.success),
                        throwable -> Log.e("TEST", "onError: " + throwable.getMessage(), throwable),
                        () -> Log.i("TEST", "completed"))
        ;
    }

    @Override
    protected void onDestroy() {
        compositeSubscription.unsubscribe();
        super.onDestroy();
    }