recycler view的item view怎么设置单击事件

可以在RecyclerView的适配器中给item view设置单击事件监听器。具体可以参考下面的代码：

public class MyAdapter extends RecyclerView.Adapter<MyViewHolder> {

    private List<String> mDataList;
    private OnItemClickListener mListener;

    public MyAdapter(List<String> dataList, OnItemClickListener listener) {
        mDataList = dataList;
        mListener = listener;
    }

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

    @Override
    public void onBindViewHolder(MyViewHolder holder, int position) {
        String data = mDataList.get(position);
        holder.bindData(data);
    }

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

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

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

        private TextView mTextView;

        public MyViewHolder(View itemView) {
            super(itemView);
            mTextView = itemView.findViewById(R.id.text_view);
            itemView.setOnClickListener(this);
        }

        public void bindData(String data) {
            mTextView.setText(data);
        }

        @Override
        public void onClick(View v) {
            if (mListener != null) {
                int position = getAdapterPosition();
                mListener.onItemClick(position);
            }
        }
    }
}

在Activity或Fragment中设置单击事件监听器：

MyAdapter adapter = new MyAdapter(dataList, new MyAdapter.OnItemClickListener() {
    @Override
    public void onItemClick(int position) {
        // 处理单击事件
    }
});

recyclerView.setAdapter(adapter);