Selected RecyclerView Adapter

SelectedRecyclerAdapter.java

public class SelectedRecyclerAdapter extends RecyclerView.Adapter<SelectedRecyclerAdapter.ViewHolder>{
    private static final String TAG = SelectedRecyclerAdapter.class.getSimpleName();

    public interface OnItemClickListener {
        void onItemClick(View v, int position);
    }

    private OnItemClickListener mListener;
    
    private List<FunctionItem> mItemList;

    private int mCurrSelectedItem = -1;
    
    public SelectedRecyclerAdapter(List<FunctionItem> itemList) {
        mItemList = itemList;
    }

    public void setOnItemClickListener(OnItemClickListener listener) {
        mListener = listener;
    }

    public void setSelectedItem(int selectedItem) {
        if (mCurrSelectedItem != selectedItem) {
            int prevSelectedItem = mCurrSelectedItem;
            mCurrSelectedItem = selectedItem;
            notifyItemChanged(prevSelectedItem);
            notifyItemChanged(mCurrSelectedItem);
        }
    }

    public class ViewHolder extends RecyclerView.ViewHolder {
        public View view;
        public ImageView icon;
        public TextView name;
        public ImageView selectedMark;

        public ViewHolder(View itemView) {
            super(itemView);

            view = itemView;
            icon = (ImageView) itemView.findViewById(R.id.icon);
            name = (TextView) itemView.findViewById(R.id.name);
            selectedMark = (ImageView) itemView.findViewById(R.id.selectedMark);
        }
    }

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

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        FunctionItem item = mItemList.get(position);

        holder.icon.setImageDrawable(item.getIcon());
        holder.name.setText(item.getName());
        holder.selectedMark.setVisibility(position == mCurrSelectedItem ? View.VISIBLE : View.INVISIBLE);
        
        final int pos = holder.getAdapterPosition();
        if (pos != RecyclerView.NO_POSITION) {
            holder.view.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    if (mListener != null) {
                        mListener.onItemClick(v, pos);
                    }
                }
            });
        }
    }

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