stephanenicolas

import toothpick.Scope
import toothpick.Toothpick
import kotlin.properties.ReadOnlyProperty
import kotlin.reflect.KProperty

annotation class ActivityScope
annotation class FreeScope

//------------------------- 
// case: Entry point

stephanenicolas

public class HeadlinesFragment extends ListFragment {
    HeadlineListener mCallback;

  // Container Activity must implement this interface
  public interface HeadlineListener {
    public void onArticleSelected(int position);
  }

  @Override
  public void onAttach(Activity activity) {

stephanenicolas

  public class HeadLineFragment extends ListFragment {
   @Override
   public void onListItemClick(ListView l, View v, int p, long i) {
     // Send the event to the host activity
     // we should probably check if the activity is finishing|destroyed|rotating
     mCallback.onArticleSelected(getActivity(), p);
   }
  }

stephanenicolas

  public class HeadLineFragment extends Fragment {
    public <T> void setHeadlineListener(HeadlineListener<T> listener) {
      ...
    }
  }

stephanenicolas

public class HeadlinesFragment extends ListFragment {
    HeadlineListener mCallback;

  public <T> void setHeadlineListener(HeadlineListener<T> listener) {
   this.mCallBack = listener;
  }

   @Override
   public void onListItemClick(ListView l, View v, int p, long i) {
     // Send the event to the host activity

stephanenicolas

public static class MainActivity extends Activity {
  public void onArticleSelected(int position) {
  }
  
  public static void onArticleSelected(MainActivity activity, int position) {
  }
}

stephanenicolas

just(0)
  .map(this::onArticleSelected)
  .subscribe(...);

stephanenicolas

public static class MainActivity extends Activity {
  public void bindFragment(HeadlinesFragment fragment) {
    fragment.setHeadlineListener(MainActivity::onArticleSelected);
  }
  public void onArticleSelected(int position) {
    ...
  }
}

stephanenicolas

public interface HeadlineListener<T extends Activity> extends Serializable {
  public void onArticleSelected(T activity, int position);
}

stephanenicolas

public static class MainActivity extends Activity {
  public void onArticleSelected(int position) {
  }
}