ListRecyclerAdapter.java

BindViewHolder.java

public abstract class BindViewHolder<T> extends RecyclerView.ViewHolder {
        public BindViewHolder(View itemView) {
            super(itemView);
        }

        abstract void onBind(int position, T item);
}

IconViewHolder.java

public class IconViewHolder extends BindViewHolder<String> {
        @InjectView(R.id.icon)
        public SimpleDraweeView icon;

        public IconViewHolder(View itemView) {
            super(itemView);
            ButterKnife.inject(this, itemView);
        }

        @Override
        public void onBind(int position, String item) {
            icon.setImageUIconViewHolderRI(Uri.parse(item));
        }
    }
}

ListRecyclerAdapter.java

public class ListRecyclerAdapter<T, VH extends BindViewHolder<T>> extends RecyclerView.Adapter<VH> {
        private List<T> mList = Collections.emptyList();
        protected Action3<VH, Integer, T> mOnBindViewHolder;
        protected Func2<ViewGroup, Integer, VH> mOnCreateViewHolder;

        public ListRecyclerAdapter(List<T> list) {
            mList = list;
        }

        public static <R, VHH extends BindViewHolder<R>> ListRecyclerAdapter<R, VHH> create() {
            return create(new ArrayList<>());
        }

        public static <R, VHH extends BindViewHolder<R>> ListRecyclerAdapter<R, VHH> create(List<R> list) {
            return new ListRecyclerAdapter<>(list);
        }

        @Override
        public VH onCreateViewHolder(ViewGroup parent, int viewType) {
            if (mOnCreateViewHolder != null) return mOnCreateViewHolder.call(parent, viewType);
            return null;
        }

        protected ListRecyclerAdapter<T, VH> createViewHolder(Func2<ViewGroup, Integer, VH> onCreateViewHolder) {
            mOnCreateViewHolder = onCreateViewHolder;
            return this;
        }

        private boolean onBindViewHolderSupered;

        @Override
        public void onBindViewHolder(VH viewHolder, int position) { // final, DO NOT Override until certainly
            onBindViewHolderSupered = false;
            onBindViewHolder(viewHolder, position, mList.get(position));
            if (!onBindViewHolderSupered) throw new IllegalArgumentException("super.onBindViewHolder() not be called");
        }

        // super me
        public void onBindViewHolder(VH viewHolder, int position, T item) { // final, DO NOT Override until certainly
            onBindViewHolderSupered = true;
            if (mOnBindViewHolder == null) {
                mOnBindViewHolder = (v, p, i) -> v.onBind(p, i);
            }
            mOnBindViewHolder.call(viewHolder, position, item);
        }

        public ListRecyclerAdapter<T, VH> bindViewHolder(Action3<VH, Integer, T> onBindViewHolder) {
            mOnBindViewHolder = onBindViewHolder;
            return this;
        }

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

Main.java

ListRecyclerAdapter<String, IconViewHolder> listAdapter = ListRecyclerAdapter.create();
listAdapter.createViewHolder((parent, viewType) -> new IconViewHolder(LayoutInflater.from(context).inflate(R.layout.item_icon, parent, false)));
icons.setLayoutManager(new LinearLayoutManager(activity));
icons.setAdapter(listAdapter);
listAdapter.getList().addAll(Arrays.asList("http://example.com/a.png"));
listAdapter.notifyDataSetChanged(); // TODO hook List.add(), List.addAll(), etc. modifitable operations

https://github.com/yongjhih/recyclerlist