public class AlbumAdapter extends RecyclerView.Adapter<AlbumAdapter.ViewHolder> {

    private Context context;
    private ArrayList<String> itemList;


    public AlbumAdapter(Context context, ArrayList<String> itemList) {
        this.context = context;
        this.itemList = itemList;


    }

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.viewholder_album_item, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int i) {
        //android:adjustViewBounds="true"

        Glide.with(context)
                .load(itemList.get(i))
                .apply(RequestOptions.fitCenterTransform())
                .placeholder(R.drawable.ic_altered_placeholder)
                .transition(DrawableTransitionOptions.withCrossFade())
                .into(holder.imageView);
    }

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

    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

        @BindView(R.id.vh_iv_album_single_picture) ImageView imageView;
        int position;

        public ViewHolder(@NonNull View itemView) {
            super(itemView);
            ButterKnife.bind(this, itemView);
            itemView.setOnClickListener(this);
        }

        @Override
        public void onClick(View v) {
            position = getAdapterPosition();
        }
    }
}