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添加依赖

implementation 'com.android.support:recyclerview-v7:+'

list.java (主类)

RecyclerView recyclerView = findViewById(R.id.recyclerView);        recyclerView.setLayoutManager(new LinearLayoutManager(this));        final List
   
     data = new ArrayList<>();        for(int i = 0; i < 20; i++) {            Book b = new Book("book"+i,"100");            data.add(b);        }        final MyRecyclerViewAdapter myAdapter = new MyRecyclerViewAdapter
    
     (this, R.layout.item, data) {            @Override            public void convert(MyViewHolder holder, Book s) {                // Colloction是自定义的一个类，封装了数据信息，也可以直接将数据做成一个Map，那么这里就是Map
     
                      TextView name = holder.getView(R.id.name);                name.setText(s.getBookName());                TextView price = holder.getView(R.id.price);                price.setText(s.getBookPrice());            }        };        recyclerView.setAdapter(myAdapter);
     
    
   

 自定义Adapter

public abstract class MyRecyclerViewAdapter
   
     extends RecyclerView.Adapter
    
      {    private List
     
       data;    private Context context;    private int layout;    public abstract void convert(MyViewHolder holder, T t);    public MyRecyclerViewAdapter(Context _context, int _layoutId, List _data) {        data = _data;        context = _context;        layout = _layoutId;    }    public int getItemCount() {        return data.size();    }    @Override    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        MyViewHolder holder = MyViewHolder.get(context, parent, layout);        return holder;    }    @Override    public void onBindViewHolder(final MyViewHolder holder, final int position) {        convert(holder, data.get(position)); // convert函数需要重写        holder.itemView.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                data.remove(position);                notifyDataSetChanged();//                notifyItemRemoved(position);//                notifyItemRangeChanged(position, getItemCount());                Toast.makeText(context, "删除"+position, Toast.LENGTH_SHORT).show();            }        });//        holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {//            @Override//            public boolean onLongClick(View view) {//                data.remove(position);//                notifyDataSetChanged();//                Toast.makeText(context, "删除"+position, Toast.LENGTH_SHORT).show();//                return false;  // true 表示已经完整地处理了事件，不希望其他回调方法再处理//            }//        });    }}
     
    
   

自定义ViewHolder

public class MyViewHolder extends RecyclerView.ViewHolder{    private SparseArray
   
     views;    private View view;    public MyViewHolder(Context _context, View _view, ViewGroup _viewGroup){        super(_view);        view = _view;        views = new SparseArray
    
     ();    }    public static MyViewHolder get(Context _context, ViewGroup _viewGroup, int _layoutId) {        View _view = LayoutInflater.from(_context).inflate(_layoutId, _viewGroup, false);        MyViewHolder holder = new MyViewHolder(_context, _view, _viewGroup);        return holder;    }    public 
     
       T getView(int _viewId) {        View _view = views.get(_viewId);        if (_view == null) {            // 创建view            _view = view.findViewById(_viewId);            // 将view存入views            views.put(_viewId, _view);        }        return (T)_view;    }}
     
    
   

主xml

列表项xml

数据的类

public class Book {    private String bookName;    private String bookPrice;    public Book(String bookName, String bookPrice) {        this.bookName = bookName;        this.bookPrice = bookPrice;    }    public String getBookName() {        return bookName;    }    public String getBookPrice() {        return bookPrice;    }    public void setBookName(String bookName) {        this.bookName = bookName;    }    public void setBookPrice(String bookPrice) {        this.bookPrice = bookPrice;    }}

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