我是 Android 和一般編程的新手。我正在嘗試用一些數據加載 RecyclerView。在調試模式下，直到最后，應用程序崩潰時，它才會顯示錯誤。這里使用的主要數據是一個名為 Lettura 的實體，它是房間數據庫的一部分。在這里，我調用并使用一些數據填充視圖：    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.vedi_letture_simple);        ArrayList<Lettura> letture = new ArrayList<>();        Date date = new Date(1989, 1, 1);        Lettura a = new Lettura("a", "b", "c", 14.5, date, 1);        letture.add(a);        RecyclerView recView = (RecyclerView) findViewById(R.id.lettura_recyclerview);        LetturaAdapter mlAdapter = new LetturaAdapter(this, letture);  //made final        recView.setAdapter(mlAdapter);        // use a linear layout manager      LinearLayoutManagr lll = new LinearLayoutManager(this);        recView.setLayoutManager(lll);這里是適配器類 LetturaAdapter.class    class LetturaAdapter extends RecyclerView.Adapter<LetturaAdapter.LetturaViewHolder> {    private ArrayList<Lettura> letture;      private LayoutInflater mInflater;    public LetturaAdapter(Context context, ArrayList<Lettura> lettura){        this.mInflater = LayoutInflater.from(context);        this.letture = lettura;    }    @Override    public void onBindViewHolder(LetturaViewHolder rigaHolded, int position) {        Lettura current;        current = letture.get(position);        TextView barT = hholded.barcodeItemView;        barT.setText(current.getBarcode());        TextView desT = hholded.descriptionItemView;        desT.setText(current.getDescription());        TextView priceT = hholded.priceItemView;        priceT.setText(current.getPrice().toString());        TextView dateT = hholded.dateItemView;        dateT.setText(current.getDate().toString());        TextView quanT = hholded.quantityItemView;        quanT.setText(current.getQuantity());    }