无法从getter setter模态中获取juJuul

Question

我正在构建一个recyclerview，该recyclerview已经显示了数据库中的数据。

我希望单击recyclerview中的数据，然后转到另一个活动以查看详细数据。

问题是，在onCreateViewHolder上实现时，我无法从Getter和Setter调用getJudul。调用Getter Setter时，会显示一条消息“无法解析getJtitle方法”

这里是我的模特

public class BeritaPagModel {
    String idberita, judul;

    public BeritaPagModel() {
    }

    public String getIdberita() {
        return idberita;
    }

    public void setIdberita(String idberita) {
        this.idberita = idberita;
    }

    public String getJudul() {
        return judul;
    }

    public void setJudul(String judul) {
        this.judul = judul;
    }
}

我的视图持有人

public class BeritaPagViewHolder extends RecyclerView.ViewHolder {
    public BeritaPagViewHolder(@NonNull View itemView) {
        super(itemView);
        itemView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                iclicklistener.onItemClick(view, getAdapterPosition());
            }
        });
        itemView.setOnLongClickListener(new View.OnLongClickListener() {
            @Override
            public boolean onLongClick(View view) {
                iclicklistener.onItemLongClick(view, getAdapterPosition());
                return true;
            }
        });
    }

    public void setItem(Context ctx, String judul){
        TextView ijudul = itemView.findViewById(R.id.beritapag_judul_itemlist);
        ijudul.setText(judul);
    }

    public interface ClickListener{
        void onItemClick(View view, int position);
        void onItemLongClick(View view, int position);}
    private BeritaPagViewHolder.ClickListener iclicklistener;
    public void setOnClickListener(BeritaPagViewHolder.ClickListener clickListener){
        iclicklistener = clickListener;
    }
}

我的主要片段

iref = FirebaseDatabase.getInstance().getReference().child("berita");
        PagedList.Config config = new PagedList.Config.Builder()
                .setEnablePlaceholders(false)
                .setPageSize(5)
                .build();
        DatabasePagingOptions<BeritaPagModel> options = new DatabasePagingOptions.Builder<BeritaPagModel>()
                .setLifecycleOwner(this)
                .setQuery(iref, config, BeritaPagModel.class)
                .build();

        iadapter = new FirebaseRecyclerPagingAdapter<BeritaPagModel, BeritaPagViewHolder>(options) {
            @Override
            protected void onBindViewHolder(@NonNull BeritaPagViewHolder beritaPagViewHolder, int i, @NonNull BeritaPagModel beritaPagModel) {
                beritaPagViewHolder.setItem(getActivity().getApplicationContext(),
                        beritaPagModel.getJudul()
                        );
            }

            @Override
            protected void onLoadingStateChanged(@NonNull LoadingState state) {
                switch (state){
                    case LOADING_INITIAL:
                    case LOADING_MORE:
                        iswipeRefreshLayout.setRefreshing(true);
                        break;
                    case LOADED:
                        iswipeRefreshLayout.setRefreshing(false);
                        break;
                    case FINISHED:
                        iswipeRefreshLayout.setRefreshing(false);
                        break;
                    case ERROR:
                        retry();
                        break;
                }
            }

            @NonNull
            @Override
            public BeritaPagViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
                View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.fragment_layout_beritapag_itemlist, parent, false);
                BeritaPagViewHolder beritaPagViewHolder = new BeritaPagViewHolder(itemView);

                beritaPagViewHolder.setOnClickListener(new BeritaPagViewHolder.ClickListener() {
                    @Override
                    public void onItemClick(View view, int position) {
                        Toast.makeText(getContext(), "Klik sekali", Toast.LENGTH_SHORT).show();


                        final String curJudul = getItem(position).getJudul();

                    }

                    @Override
                    public void onItemLongClick(View view, int position) {
                        Toast.makeText(getContext(), "Klik lamaaaaa", Toast.LENGTH_SHORT).show();
                    }
                });

                return beritaPagViewHolder;

            }
        };
        irecyclerView.setAdapter(iadapter);

        iswipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
            @Override
            public void onRefresh() {
                iadapter.refresh();
            }
        });
        return irootview;
    }

Sceenshot error

Answer 1

确保#getItem（position）返回BeritaPagModel

如果返回Object，则必须将其强制转换为BeritaPagModel：

((BeritaPagModel)getItem(position)).getJudul();

如果以上情况不起作用，请尝试单击文件->使缓存无效并重新启动