在父recycleview适配器android的子recycleview中添加项目

implementation 'androidx.recyclerview:recyclerview:1.2.1'

<androidx.recyclerview.widget.RecyclerView
    android:id="@+id/childRecyclerView"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

@Override
public void onBindViewHolder(@NonNull ParentViewHolder holder, int position) {
    // 获取当前项的数据
    ParentItem parentItem = parentItemList.get(position);

    // 创建子RecyclerView的适配器
    ChildAdapter childAdapter = new ChildAdapter(parentItem.getChildItemList());

    // 设置子RecyclerView的布局管理器和适配器
    holder.childRecyclerView.setLayoutManager(new LinearLayoutManager(context));
    holder.childRecyclerView.setAdapter(childAdapter);
}

public class ChildAdapter extends RecyclerView.Adapter<ChildViewHolder> {
    private List<ChildItem> childItemList;

    public ChildAdapter(List<ChildItem> childItemList) {
        this.childItemList = childItemList;
    }

    @NonNull
    @Override
    public ChildViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.child_item_layout, parent, false);
        return new ChildViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull ChildViewHolder holder, int position) {
        ChildItem childItem = childItemList.get(position);
        // 在子项的视图持有者中设置子项的数据
        holder.bind(childItem);
    }

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

public class ParentViewHolder extends RecyclerView.ViewHolder {
    public RecyclerView childRecyclerView;

    public ParentViewHolder(@NonNull View itemView) {
        super(itemView);
        childRecyclerView = itemView.findViewById(R.id.childRecyclerView);
    }
}