stephanenicolas

 @Override
    public void onActivityCreated( Bundle savedInstanceState ) {
        super.onActivityCreated( savedInstanceState );
        mainActivity = (MainActivity) getActivity();
        buttonStart.setOnClickListener( new OnClickListener() {

            @Override
            public void onClick( View v ) {
                onStart( v );
            }

stephanenicolas

/*
 * Copyright 2009 Michael Burton
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

stephanenicolas

import io.reactivex.Maybe;
import io.reactivex.MaybeSource;
import io.reactivex.Observable;
import io.reactivex.ObservableTransformer;
import io.reactivex.disposables.Disposable;
import io.reactivex.functions.Consumer;
import io.reactivex.functions.Function;
import io.reactivex.subjects.BehaviorSubject;
import java.util.ArrayList;
import java.util.Arrays;

stephanenicolas

public static class MainActivity extends Activity
        implements HeadlinesFragment.HeadlineListener{
    ...
  public void onArticleSelected(int position) {
   // The user selected the headline of an article from the HeadlinesFragment
   // Do something here to display that article
  }
}

stephanenicolas

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

stephanenicolas

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

stephanenicolas

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

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