ViewHolder and Dagger 2 example

RepositoriesListAdapter.java

public class RepositoriesListAdapter extends RecyclerView.Adapter {

    private RepositoriesListActivity repositoriesListActivity;

    private final List<Repository> repositories = new ArrayList<>();

    public RepositoriesListAdapter(RepositoriesListActivity repositoriesListActivity) {
        this.repositoriesListActivity = repositoriesListActivity;
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        final RecyclerView.ViewHolder viewHolder;
        if (viewType == Repository.TYPE_NORMAL) {
            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_normal, parent, false);
            viewHolder = new RepositoryViewHolderNormal(view);
        } else if (viewType == Repository.TYPE_BIG) {
            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_big, parent, false);
            viewHolder = new RepositoryViewHolderBig(view);
        } else if (viewType == Repository.TYPE_FEATURED) {
            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_featured, parent, false);
            viewHolder = new RepositoryViewHolderFeatured(view);
        } else {
            return null;
        }

        viewHolder.itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                onRepositoryItemClicked(viewHolder.getAdapterPosition());
            }
        });

        return viewHolder;
    }

    private void onRepositoryItemClicked(int adapterPosition) {
        repositoriesListActivity.onRepositoryClick(repositories.get(adapterPosition));
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        ((RepositoryViewHolder) holder).bind(repositories.get(position));
    }

    @Override
    public int getItemCount() {
        return repositories.size();
    }

    @Override
    public int getItemViewType(int position) {
        Repository repository = repositories.get(position);
        if (repository.stargazers_count > 500) {
            if (repository.forks_count > 100) {
                return Repository.TYPE_FEATURED;
            }
            return Repository.TYPE_BIG;
        }
        return Repository.TYPE_NORMAL;
    }

    public void updateRepositoriesList(List<Repository> repositories) {
        this.repositories.clear();
        this.repositories.addAll(repositories);
        notifyDataSetChanged();
    }

    public static class RepositoryViewHolderNormal extends RepositoryViewHolder {

        @Bind(R.id.tvName)
        TextView tvName;

        public RepositoryViewHolderNormal(View view) {
            super(view);
            ButterKnife.bind(this, itemView);
        }

        @Override
        public void bind(Repository repository) {
            tvName.setText(repository.name);
        }
    }

    public static class RepositoryViewHolderBig extends RepositoryViewHolder {

        @Bind(R.id.tvName)
        TextView tvName;
        @Bind(R.id.tvStars)
        TextView tvStars;
        @Bind(R.id.tvForks)
        TextView tvForks;

        public RepositoryViewHolderBig(View view) {
            super(view);
            ButterKnife.bind(this, itemView);
        }

        @Override
        public void bind(Repository repository) {
            tvName.setText(repository.name);
            tvStars.setText("Stars: " + repository.stargazers_count);
            tvForks.setText("Forks: " + repository.forks_count);
        }
    }

    public static class RepositoryViewHolderFeatured extends RepositoryViewHolder {

        @Bind(R.id.tvName)
        TextView tvName;
        @Bind(R.id.tvStars)
        TextView tvStars;
        @Bind(R.id.tvForks)
        TextView tvForks;

        public RepositoryViewHolderFeatured(View view) {
            super(view);
            ButterKnife.bind(this, itemView);
        }

        @Override
        public void bind(Repository repository) {
            tvName.setText(repository.name);
            tvStars.setText("Stars: " + repository.stargazers_count);
            tvForks.setText("Forks: " + repository.forks_count);
        }
    }
}