bffcorreia

public class EmotionManager {

  private final PeanutButterJar peanutButterJar;
  private final Benfica benfica;

  public EmotionManager() {
    this.peanutButterJar = new PeanutButterJar();
    this.benfica = new Benfica();
  }

bffcorreia

public class EmotionManager {

  private final PeanutButterJar peanutButterJar;
  private final Benfica benfica;

  public EmotionManager(PeanutButterJar peanutButterJar, Benfica benfica) {
    this.peanutButterJar = peanutButterJar;
    this.benfica = benfica;
  }

bffcorreia

PeanutButterJar peanutButterJar = new PeanutButterJar(...);
Benfica benfica = new Benfica(...);
EmotionManager emotionManager = new EmotionManager(peanutButterJar, benfica);

bffcorreia

public class EmotionManager {

  private final PeanutButterJar peanutButterJar;
  private final Benfica benfica;

  @Inject public EmotionManager(PeanutButterJar peanutButterJar, Benfica benfica) {
    this.peanutButterJar = peanutButterJar;
    this.benfica = benfica;
  }

bffcorreia

public class PeanutButterJar { 
 
  @Inject public PeanutButterJar() {}
  
  ...
}

public class Benfica { 
 
  @Inject public Benfica() {}

bffcorreia

public class MainActivity extends AppCompatActivity {

  @Inject EmotionManager emotionManager;

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

bffcorreia

public class EmotionManager {

  private final PeanutButterJar peanutButterJar;
  private final Benfica benfica;

  @Inject public EmotionManager(PeanutButterJar peanutButterJar, Benfica benfica) {
    this.peanutButterJar = peanutButterJar;
    this.benfica = benfica;
  }
  

bffcorreia

@Module public class ActivityModule {

  private final Activity activity;

  public ActivityModule(Activity activity) {
    this.activity = activity;
  }

  @Provides public Context provideActivityContext() {
    return activity;

bffcorreia

@Provides 
public Context provideApplicationContext() {
  return application;
}

@Provides @Named("activity_context") 
public Context provideActivityContext() {
  return activity;
}

bffcorreia

public class ClassA {

  private final Context context;

  @Inject public ClassA(Context context) {
    this.context = context; // Application Context
  }
}

public class ClassB {