AnimationRendererAdapterSnippet.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;
}