MainActivity.java

public class MainActivity extends AppCompatActivity {

    @Inject
    TweeterApi tweeterApi;

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

        DaggerActivityInjectorComponent.builder()
                .twitterComponent(CleanArchitectureApplication.getTwitterAPIComponent())
                .build()
                .inject(this);

        ButterKnife.bind(this);

    }
}