Android，任何想法显示随机宽度和高度的嵌套列表？

Question

我有一个嵌套列表，如A {a1，a2，a3 ... aN}，B {B1，BM}，...... O {O1，o2，... OP}这个。该列表具有随机数量的成员。每个成员也列出随机成员。这将显示如下图像。如您所见，外部单元的宽度和高度不固定。我想如果我使用嵌套的recyclerview可能是可能的。它有点像StaggeredGridLayoutManager。但据我所知，StaggeredGridLayoutManager应该有一个宽度或高度应该是固定的。有什么建议如何实现这种UI设计？ This is what I want to display

This is what displayes when I use StaggeredGridLayoutManager

这是外部列表适配器 / ********** class GroupAdapter扩展了RecyclerView.Adapter {

    @Override
    public GroupHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.cell_group, null);
        GroupHolder ih = new GroupHolder(v);
        return ih;
    }

    @Override
    public void onBindViewHolder(GroupHolder holder, int position) {
        if(mGroups!=null && mGroups.size()>position) {
            GroupObject group = mGroups.get(position);
            ArrayList<CandidateObject> cans = group.getCandidates();
            CandidateAdapter adapter = new CandidateAdapter(cans);
            CustomLinearLayoutManager mLinearManager = new CustomLinearLayoutManager(MainActivity.this);
            mLinearManager.setAutoMeasureEnabled(true);
            holder.rvCandis.setLayoutManager(mLinearManager);
            holder.tvTitle.setText(group.getName());
            holder.rvCandis.setAdapter(adapter);
        }
    }

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

private static class GroupHolder extends RecyclerView.ViewHolder {
    private TextView tvTitle;
    private RecyclerView rvCandis;
    public int index;

    private GroupHolder(View v) {
        super(v);
        this.tvTitle = (TextView) v.findViewById(R.id.tv_partyname);
        this.rvCandis = (RecyclerView) v.findViewById(R.id.rvCandi);
    }
}

这是内部列表适配器 class CandidateAdapter扩展了RecyclerView.Adapter {         ArrayList candis;

    CandidateAdapter(ArrayList<CandidateObject> candis){
        this.candis = candis;
    }

    @Override
    public CandidateHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.cell_candidate, null);
        CandidateHolder ih = new CandidateHolder(v);
        return ih;
    }

    @Override
    public void onBindViewHolder(CandidateHolder holder, int position) {
        if(candis!=null && candis.size()>position) {
            CandidateObject c = candis.get(position);
            holder.tvName.setText(c.getName());
        }
    }

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

private static class CandidateHolder extends RecyclerView.ViewHolder {
    private ImageView ivThumb;
    private TextView tvName;
    public int index;

    private CandidateHolder(View v) {
        super(v);
        this.tvName = (TextView) v.findViewById(R.id.tv_name);
        this.ivThumb = (ImageView) v.findViewById(R.id.ivNaver);
    }
}

StaggeredGridLayoutManager是这样的。

     setContentView(R.layout.activity_main);
    StaggeredGridLayoutManager mLayManager = new StaggeredGridLayoutManager(3, StaggeredGridLayoutManager.VERTICAL);
    mRvVote = (RecyclerView) findViewById(R.id.rvVote);
    mRvVote.setLayoutManager(mLayManager);