HomeActivity.java

...
  
HomeViewModel homeViewModel = ViewModelProviders.of(this).get(HomeViewModel.class);

        homeViewModel.getMovies().observe(HomeActivity.this, movieList -> {
            if (movieList != null) {
                ArrayList<Movie> movieArrayList = new ArrayList<>(movieList);
                homeAdapter = new HomeAdapter(HomeActivity.this, movieArrayList);
                InfiniteScrollAdapter wrapper = InfiniteScrollAdapter.wrap(homeAdapter);
                discreteScrollView.setAdapter(wrapper);
            }
        });

...