dlemures

public class DetailActivity extends Activity {
  public static final String EXTRA_ITEM_ID = "extra.item_id";
  public static final String EXTRA_SHOW_MAP = "extra.show_map";
  
  private String itemId;
  private boolean shouldShowMap;
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

dlemures

Intent intent = new Intent(context, DetailActivity.class);
intent.putExtra(EXTRA_ITEM_ID, selectedItem.id);
intent.putExtra(EXTRA_SHOW_MAP, true);
startActivity(intent);

dlemures

public class IntentFactory {
  public Intent newDetailActivityIntent(Context context, String itemId, boolean showMap) {
    Intent intent = new Intent(context, DetailActivity.class);
    intent.putExtra(EXTRA_ITEM_ID, itemId);
    intent.putExtra(EXTRA_SHOW_MAP, showMap);
    return intent;
  }
  ...
}

dlemures

public class DetailActivity extends Activity {
  @InjectExtra String itemId;
  @Nullable @InjectExtra boolean shouldShowMap;
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Dart.inject(this);
    ...
  }

dlemures

Intent intent = Henson.with(context)
    .gotoDetailActivity()
    .itemId(selectedItem.id)
    .shouldShowMap(true)
    .build();
    
startActivity(intent);

dlemures

class SmoothieMaker {
  @Inject Blender blender;
  @Inject Freezer freezer;
  ...
}

dlemures

class SmoothieShop {
  @Inject SmoothieMaker smoothieMaker1;
  @Inject SmoothieMaker smoothieMaker2;
  
  public SmoothieShop() {
    Scope scope = Toothpick.openScope("SmoothieShop");
    Toothpick.inject(this, scope);
    ...
  }
  ...

dlemures

bind(Blender.class).to(JarBlender.class);  // Blender -> JarBlender
bind(Freezer.class).to(new Freezer());  // Freezer -> Freezer instance 

dlemures

public class SmoothieShopModule extends Module {
  public SmoothieShopModule() {
    bind(Blender.class).to(JarBlender.class);  // Blender -> JarBlender
    bind(Freezer.class).to(new Freezer());  // Freezer -> Freezer instance 
  }
}

class SmoothieShop {
  @Inject SmoothieMaker smoothieMaker1;
  @Inject SmoothieMaker smoothieMaker2;

dlemures

@Inject Lazy<SmoothieMaker> smoothieMaker;
smoothieMaker.get().makeSmoothie();