Synchronizing animations in RecyclerView

CustomActivity.java

@Bind(R.id.my_recyclerview) RecyclerView myList;

private PublishSubject<Long> animationTimer;
private Subscription animationSubscription;

public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  ButterKnife.bind(this);
  
  animationSubscription = Observable.interval(1, TimeUnit.SECONDS)
    .observeOn(AndroidSchedulers.mainThread())
    .subscribeOn(Schedulers.newThread())
    .subscribe(animationTimer = PublishSubject.create());
  
  CustomRendererBuilder rendererBuilder = new CustomRendererBuilder(animationTimer)
  RVRendererAdapter adapter = new RVRendererAdapter<>(rendererBuilder);
  list.setAdapter(adapter);
}

@Override public void onDestroy() {
  if (animationSubscription.isUnsubscribed()) {
    animationSubscription.unsubscribe();
  }
}

CustomRenderer.java

@Bind(R.id.my_animated_icon) View myIcon;

private final PublishSubject<Long> animationTimer;
private ObjectAnimator animator;

public CustomRenderer(PublishSubject<Long> animationTimer) {
  this.animationTimer = animationTimer;
}

@Override protected View inflate(LayoutInflater inflater, ViewGroup parent) {
  View view = inflater.inflate(R.layout.feature_home_section_empty, parent, false);
  ButterKnife.bind(this, view);
  return view;
}

@Override public void render() {
  setupAnimation();
  animationTimer.subscribe(timerValue -> startAnimation());
} 

private void setupAnimation() {
  animator = ObjectAnimator.ofFloat(view, "alpha", 0f, 1f, 0f);
  animator.setInterpolator(new AccelerateDecelerateInterpolator());
  animator.setDuration(1000);
  animator.setRepeatCount(ValueAnimator.INFINITE);
  animator.setRepeatMode(ValueAnimator.RESTART);
  startAnimation();
}

private void startAnimation() {
  stopAnimation();
  myIcon.setVisibility(View.VISIBLE);
  animator.start();
}

private void stopAnimation() {
  if (animator.isStarted()) {
    animator.end();
  }
  myIcon.setVisibility(View.INVISIBLE);
}

CustomRendererBuilder.java

public CustomRendererBuilder(PublishSubject<Long> animationTimer) {
  ListAdapteeCollection<Renderer<? extends Item>> prototypes = new ListAdapteeCollection<>();
  prototypes.add(new CustomRenderer(animationTimer));
  setPrototypes(prototypes);
}

@Override protected Class getPrototypeClass(Item item) {
  return CustomRenderer.class;
}

LICENSE

The MIT License (MIT)

Copyright (c) 2017 Jorge Garrido Oval <firezenk@gmail.com>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.