如何更新回收視圖適配器數(shù)據(jù)？試圖找出更新的問題所在RecyclerView是適配器。在我得到一份新的產(chǎn)品清單之后，我試著：更新ArrayList從碎片recyclerView，將新數(shù)據(jù)設(shè)置為適配器，然后調(diào)用adapter.notifyDataSetChanged()沒有用。像其他人一樣，創(chuàng)建一個新適配器，它對他們起了作用，但對我來說沒有變化：recyclerView.setAdapter(new RecyclerViewAdapter(newArrayList))創(chuàng)建一個方法Adapter它更新數(shù)據(jù)如下：public void updateData(ArrayList<ViewModel> viewModels) {    items.clear();    items.addAll(viewModels);    notifyDataSetChanged();}然后，每當(dāng)我想更新數(shù)據(jù)列表時，我都會調(diào)用這個方法；它沒有工作。若要檢查是否可以任何方式修改“回收視圖”，并且嘗試刪除至少一個項目： public void removeItem(int position) {     items.remove(position);     notifyItemRemoved(position);}一切都保持原樣。這是我的適配器：public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.ViewHolder> implements View.OnClickListener {     private ArrayList<ViewModel> items;     private OnItemClickListener onItemClickListener;     public RecyclerViewAdapter(ArrayList<ViewModel> items) {         this.items = items;     }     public void setOnItemClickListener(OnItemClickListener onItemClickListener) {         this.onItemClickListener = onItemClickListener;     }     @Override     public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {         View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_recycler, parent, false);         v.setOnClickListener(this);         return new ViewHolder(v);     }     public void updateData(ArrayList<ViewModel> viewModels) {         items.clear();         items.addAll(viewModels);         notifyDataSetChanged();     }     public void addItem(int position, ViewModel viewModel) {         items.add(position, viewModel);         notifyItemInserted(position);     }     public void removeItem(int position) {         items.remove(position);         notifyItemRemoved(position);     }因此，如何實際更新適配器數(shù)據(jù)以顯示新接收的項？