如何将动态数量的子项添加到android recyclerview项目中

// 1. 创建数据模型
public class Item {
    private String name;
    
    public Item(String name) {
        this.name = name;
    }
    
    public String getName() {
        return name;
    }
}

// 2. 创建子项布局 (item_layout.xml)
<!-- item_layout.xml -->
<TextView
    android:id="@+id/item_name"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

// 3. 创建适配器
public class ItemAdapter extends RecyclerView.Adapter<ItemAdapter.ViewHolder> {
    private List<Item> itemList;
    
    public ItemAdapter(List<Item> itemList) {
        this.itemList = itemList;
    }
    
    public class ViewHolder extends RecyclerView.ViewHolder {
        public TextView itemName;
        
        public ViewHolder(View itemView) {
            super(itemView);
            itemName = itemView.findViewById(R.id.item_name);
        }
    }
    
    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_layout, parent, false);
        return new ViewHolder(view);
    }
    
    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        Item item = itemList.get(position);
        holder.itemName.setText(item.getName());
    }
    
    @Override
    public int getItemCount() {
        return itemList.size();
    }
}

// 4. 设置布局管理器和适配器
RecyclerView recyclerView = findViewById(R.id.recycler_view);
List<Item> itemList = new ArrayList<>();
ItemAdapter adapter = new ItemAdapter(itemList);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.setAdapter(adapter);

// 5. 更新数据
itemList.add(new Item("Item 1"));
adapter.notifyItemInserted(itemList.size() - 1);