查看RecyclerView项目的模型

// 数据模型
public class Item {
    private String title;
    public Item(String title) {
        this.title = title;
    }
    public String getTitle() {
        return title;
    }
}

// Adapter
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {
    private List<Item> items;
    public MyAdapter(List<Item> items) {
        this.items = items;
    }
    @Override
    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_layout, parent, false);
        return new MyViewHolder(view);
    }
    @Override
    public void onBindViewHolder(MyViewHolder holder, int position) {
        holder.textView.setText(items.get(position).getTitle());
    }
    @Override
    public int getItemCount() {
        return items.size();
    }
    public static class MyViewHolder extends RecyclerView.ViewHolder {
        public TextView textView;
        public MyViewHolder(View itemView) {
            super(itemView);
            textView = itemView.findViewById(R.id.textView);
        }
    }
}

// 在 Activity 中使用
public class MainActivity extends AppCompatActivity {
    private RecyclerView recyclerView;
    private MyAdapter adapter;
    private List<Item> items = new ArrayList<>();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        recyclerView = findViewById(R.id.recyclerView);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        items.add(new Item("Item 1"));
        items.add(new Item("Item 2"));
        adapter = new MyAdapter(items);
        recyclerView.setAdapter(adapter);
    }
}