在recyclerView中添加单独/新的viewType，而不考虑其在安卓中的layoutManager

public class MyAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
    private static final int VIEW_TYPE_NORMAL = 0;
    private static final int VIEW_TYPE_SPECIAL = 1;

    private List<MyData> mDataList;

    // ...

    @Override
    public int getItemViewType(int position) {
        MyData data = mDataList.get(position);
        if (data.isSpecial()) {
            return VIEW_TYPE_SPECIAL;
        } else {
            return VIEW_TYPE_NORMAL;
        }
    }

    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        LayoutInflater inflater = LayoutInflater.from(parent.getContext());
        if (viewType == VIEW_TYPE_SPECIAL) {
            View view = inflater.inflate(R.layout.item_special, parent, false);
            return new SpecialViewHolder(view);
        } else {
            View view = inflater.inflate(R.layout.item_normal, parent, false);
            return new NormalViewHolder(view);
        }
    }

    @Override
    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
        MyData data = mDataList.get(position);
        if (holder instanceof SpecialViewHolder) {
            ((SpecialViewHolder) holder).bindData(data);
        } else {
            ((NormalViewHolder) holder).bindData(data);
        }
    }

    // ...

    private static class NormalViewHolder extends RecyclerView.ViewHolder {
        // ViewHolder for normal layout

        public NormalViewHolder(View itemView) {
            super(itemView);
            // Initialize views
        }

        public void bindData(MyData data) {
            // Bind data to views
        }
    }

    private static class SpecialViewHolder extends RecyclerView.ViewHolder {
        // ViewHolder for special layout

        public SpecialViewHolder(View itemView) {
            super(itemView);
            // Initialize views
        }

        public void bindData(MyData data) {
            // Bind data to views
        }
    }
}