Recyclerview有很多视图

Question

我在使用recyclerview时遇到了一些麻烦：

public class FiltersAdapter extends RecyclerView.Adapter{

    private Context context;
    private List<String> genres;
    private ArrayList<ArrayList<String>> genreListValues;
    private Example values;
    boolean[] checked;

    private final int TYPE_ITEM1 = 0;
    private final int TYPE_ITEM2 = 1;

    FiltersAdapter(Context context, Example values, List<String> genres){
        this.context = context;
        this.genres = genres;
        this.values = values;
        checked = new boolean[values.getValues().size()];
    }

    @Override
    public int getItemViewType(int position) {
        if (position==0)
            return TYPE_ITEM1;

        return TYPE_ITEM2;
    }

//    private boolean isPositionHeader(int position) {
//        
//    }

    @NonNull
    @Override
    public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {

        if(i == TYPE_ITEM1){
            View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.filter_title_list_item, viewGroup, false);
            return  new FilterTitleViewHolder(v);
        }else if (i == TYPE_ITEM2){
            View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.filter_list_item, viewGroup, false);
            return new FilterCheckBoxViewHolder(v);
        }

        throw new RuntimeException("there is no type that matches the type " + i + " + make sure your using types correctly");
    }

    @Override
    public void onBindViewHolder(@NonNull RecyclerView.ViewHolder viewHolder, int i) {
        genreListValues = getGenreListValues();

        switch (viewHolder.getItemViewType()){
            case TYPE_ITEM1:
                ((FilterTitleViewHolder) viewHolder).title.setText(genres.get(viewHolder.getItemViewType()));
                break;
            case TYPE_ITEM2:
                for(int j = 0; j < genreListValues.size(); j++)
                        ((FilterCheckBoxViewHolder) viewHolder).cbFilter.setText(genreListValues.get(j).get(i));
                }
    }

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


    public static class FilterCheckBoxViewHolder extends RecyclerView.ViewHolder{

        CheckBox cbFilter;

        public FilterCheckBoxViewHolder(@NonNull View itemView) {
            super(itemView);
            cbFilter = itemView.findViewById(R.id.cb_filter);
        }
    }

    public static class FilterTitleViewHolder extends RecyclerView.ViewHolder{

        TextView title;

        public FilterTitleViewHolder(@NonNull View itemView) {
            super(itemView);
            title = itemView.findViewById(R.id.tv_title_item);
        }
    }

    private ArrayList<ArrayList<String>> getGenreListValues(){
        genreListValues = new ArrayList<>();

        ArrayList<String> genreValues = new ArrayList<>();
        ArrayList<String> yearsValues = new ArrayList<>();
        ArrayList<String> directorsValues = new ArrayList<>();

        for(int j = 0; j<values.getValues().size(); j++){
            for(int k = 0; k<values.getValues().get(j).getGenre().size(); k++){
                if(!genreValues.contains(values.getValues().get(j).getGenre().get(k)))
                genreValues.add(values.getValues().get(j).getGenre().get(k));
            }
        }

        for (int j = 0; j<values.getValues().size(); j++){
            if(!yearsValues.contains(values.getValues().get(j).getYear()))
            yearsValues.add(values.getValues().get(j).getYear());
        }

        for (int j = 0; j<values.getValues().size(); j++){
            String director = values.getValues().get(j).getDirector().trim();
            if(!directorsValues.contains(director))
                directorsValues.add(values.getValues().get(j).getDirector());
        }

        Collections.sort(genreValues);
        Collections.sort(yearsValues);
        Collections.sort(directorsValues);

        directorsValues.remove(0);

        genreListValues.add(genreValues);
        genreListValues.add(yearsValues);
        genreListValues.add(directorsValues);

        return genreListValues;
    }
}

类型来自课堂：

public class FiltersActivity extends AppCompatActivity {

    RecyclerView recyclerView;
    private List<String> genreList;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_filters);

        recyclerView = findViewById(R.id.rc_filters);
        LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this);
        recyclerView.setLayoutManager(linearLayoutManager);
        recyclerView.setHasFixedSize(true);

        final MoviesViewModel model = ViewModelProviders.of(this).get(MoviesViewModel.class);

        genreList = new ArrayList<>();
        genreList.add("Genre");
        genreList.add("Years");
        genreList.add("Directors");


        model.getMovies().observe(this, new Observer<Example>() {
            @Override
            public void onChanged(@Nullable Example example) {
                FiltersAdapter adapter = new FiltersAdapter(FiltersActivity.this, example, genreList);
                recyclerView.setAdapter(adapter);

            }
        });
    }
}

它总是通过indexofbound崩溃...即使我在不​​粉碎recyclerview时也执行逻辑，它仅发布一个标题和一个复选框列表（必须为3个标题和3个复选框列表）。

我知道我需要对getItemViewType使用isPositionHeader方法。但是我不知道它如何在我的代码中使用。请帮我。谢谢

对不起，我的英语！