多条目适配器

public class IProAdapter extends XRecyclerView.Adapter<XRecyclerView.ViewHolder> {

private Context context;
private List<IBean.DataBean.BannerBean> bannerBeans;
private List<IBean.DataBean.FenleiBean> fenleiBeans;
private List<IBean.DataBean.MiaoshaBean.ListBean> listBeans;
private List<IBean.DataBean.TuijianBean.ListBeanX> listBeanXES;
private final int ONE_BANNER=0;
private final int TWO_FEI=1;
private final int THREE_MIAO=2;
private final int FOUR_TUI=3;

public IProAdapter(Context context) {
    this.context = context;
    bannerBeans = new ArrayList<>();
    fenleiBeans = new ArrayList<>();
    listBeans = new ArrayList<>();
    listBeanXES = new ArrayList<>();
}

public void setlist(IBean.DataBean dataBean){
    if (dataBean!=null){
        this.bannerBeans = dataBean.getBanner();
        this.fenleiBeans = dataBean.getFenlei();
        this.listBeans = dataBean.getMiaosha().getList();
        this.listBeanXES = dataBean.getTuijian().getList();
    }
    notifyDataSetChanged();
}

@Override
public int getItemViewType(int position) {
    if (position ==ONE_BANNER){
        return ONE_BANNER;
    }else if (position ==TWO_FEI){
        return TWO_FEI;
    }else if (position ==THREE_MIAO){
        return THREE_MIAO;
    }else {
        return FOUR_TUI;
    }
}

@NonNull
@Override
public XRecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
    View view;
    if (getItemViewType(i)==ONE_BANNER){
        view=LayoutInflater.from(context).inflate(R.layout.item_banner,viewGroup,false);
        OneVH oneVH=new OneVH(view);
        return oneVH;
    }else if (getItemViewType(i)==TWO_FEI){
        view=LayoutInflater.from(context).inflate(R.layout.item_fei,viewGroup,false);
        TwoVH twoVH=new TwoVH(view);
        return twoVH;
    }else if (getItemViewType(i)==THREE_MIAO){
        view=LayoutInflater.from(context).inflate(R.layout.item_miao,viewGroup,false);
        ThreeVH threeVH=new ThreeVH(view);
        return threeVH;
    }else {
        view=LayoutInflater.from(context).inflate(R.layout.item_tui,viewGroup,false);
        FourVH fourVH=new FourVH(view);
        return fourVH;
    }

}

@Override
public void onBindViewHolder(@NonNull XRecyclerView.ViewHolder viewHolder, int i) {

    if (bannerBeans!=null&&fenleiBeans!=null&&listBeans!=null&&listBeanXES!=null){
        //instanceof判断其左边对象是否为其右边类的实例
        if (viewHolder instanceof OneVH){
            List<String> list=new ArrayList<>();
            for (int y=0;y< bannerBeans.size();y++){
                list.add(bannerBeans.get(y).getIcon());
            }
            ((OneVH) viewHolder).fly.setImagesUrl(list);
        }else if (viewHolder instanceof TwoVH){
            //布局管理器
            ((TwoVH) viewHolder).frv.setLayoutManager(new GridLayoutManager(context,5));
            //创建适配器
            FenAdapter fenAdapter = new FenAdapter(context,fenleiBeans);
            //设置适配器
            ((TwoVH) viewHolder).frv.setAdapter(fenAdapter);
        }else if(viewHolder instanceof ThreeVH){
          /*  ((ThreeVH) viewHolder).miao_name.setText(listBeans.get(i).get());*/
            //布局管理器
            ((ThreeVH) viewHolder).mrv.setLayoutManager(new GridLayoutManager(context,5));
            //创建适配器
            MiaoAdapter miaoAdapter = new MiaoAdapter(context,listBeans);
            //设置适配器
            ((ThreeVH) viewHolder).mrv.setAdapter(miaoAdapter);
        }else if (viewHolder instanceof FourVH){
            //布局管理器
            ((FourVH) viewHolder).trv.setLayoutManager(new LinearLayoutManager(context));
            //创建适配器
            TuiAdapter tuiAdapter = new TuiAdapter(context,listBeanXES);
            ((FourVH) viewHolder).trv.setAdapter(tuiAdapter);
        }
    }

}

@Override
public int getItemCount() {
    return 4;
}
/*轮播*/
class OneVH extends XRecyclerView.ViewHolder{
    private FlyBanner fly;
    public OneVH(@NonNull View itemView) {
        super(itemView);
        fly=itemView.findViewById(R.id.fly);
    }

}

class TwoVH extends XRecyclerView.ViewHolder{
    private XRecyclerView frv;
    public TwoVH(@NonNull View itemView) {
        super(itemView);
        frv=itemView.findViewById(R.id.frv);
    }

}
class ThreeVH extends XRecyclerView.ViewHolder{
   private XRecyclerView mrv;
   private TextView miao_name;
    public ThreeVH(@NonNull View itemView) {
        super(itemView);
        mrv=itemView.findViewById(R.id.mrv);
        miao_name=itemView.findViewById(R.id.miao_name);
    }

}
class FourVH extends XRecyclerView.ViewHolder{
    private XRecyclerView trv;
      public FourVH(@NonNull View itemView) {
            super(itemView);
           trv=itemView.findViewById(R.id.trv);
        }

}

}