RecyclerView 实现横向滑动

1、布局

2、代码

mRvFunctionView = contentView.findViewById(R.id.rv_function_view);

mRvFunctionView.setLayoutManager(new LinearLayoutManager(mContext, LinearLayoutManager.HORIZONTAL, false));
FunctionViewListAdapter listAdapter = new FunctionViewListAdapter(this);
mRvFunctionView.setAdapter(listAdapter);

其中的adapter和ViewHolder，和竖向的RecyclerView一样

public class FunctionViewListAdapter extends RecyclerView.Adapter {

    private List data;
    private SortItemSelectedListener itemSelectedListener;


    public FunctionViewListAdapter(SortItemSelectedListener galleryItemSelectedListener) {
        this.itemSelectedListener = galleryItemSelectedListener;
    }

    public void setData(List data) {
        this.data = data;
        notifyDataSetChanged();
    }

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

    @Override
    public void onBindViewHolder(FunctionViewListItemHolder holder, int position) {
        ViewItemBean item = data.get(position);
        holder.bind(item);
    }

    @Override
    public void onBindViewHolder(FunctionViewListItemHolder holder, int position, List