Recycler View 适配器

public class MyAdapter extends RecyclerView.Adapterimplements View.OnClickListener { private ArrayListmList;  public MyAdapter(ArrayList mList) {

        this.mList = mList;

    }

    @Override

    public Holder onCreateViewHolder(ViewGroup parent, int viewType) {

        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.recy_item, null);

        Holder holder = new Holder(view);

        //给这个VIew注册点击事件了

        view.setOnClickListener(this);

        return holder;

    }

    @Override

    public void onBindViewHolder(Holder holder, int position) {

        holder.mText.setText(mList.get(position));

        //itemVIew 跟 View一个东西  传入标记

        holder.itemView.setTag(position);

    }

    @Override

    public int getItemCount() {

        return mList.size();

    }

    public class Holder extends RecyclerView.ViewHolder {

        private TextView mText;

        public Holder(View itemView) {

            super(itemView);

            mText = itemView.findViewById(R.id.Recy_Name);

        }

    }

    public interface OnItemClick {

        void setOnItemClick(View v, int position);

    }

    private OnItemClick mOnItem;

    @Override

    public void onClick(View v) {

        if (mOnItem != null) {

            mOnItem.setOnItemClick(v, (int) v.getTag());

        }

    }

    public void setOnItem(OnItemClick onItem) {

        this.mOnItem = onItem;

    }

}