无法将 FireBase 数据库提取到 recyclerView

如何解决无法将 FireBase 数据库提取到 recyclerView

我无法填充，所以我使用了 FireBaseRecycleroption 但仍然没有输出。

我有 firebase 数据库 hoe 可以将它们添加到 recyclerview。

为什么我无法在回收站视图中查看数据

我没有发现任何错误，但仍然无法获取数据库，请帮助我。

IncomeFragement.java

    public class IncomeFragment extends Fragment {
        
            //Firebase database
        
            private FirebaseAuth mAuth;
            private DatabaseReference mIncomeDatabase;
        
            //Recycler View
        
            private RecyclerView recyclerView;
            IncomeAdapter adapter;
        
        
            private static final String ARG_PARAM1 = "param1";
            private static final String ARG_PARAM2 = "param2";
        
        
            private String mParam1;
            private String mParam2;
        
        
            public static IncomeFragment newInstance(String param1,String param2) {
                IncomeFragment fragment = new IncomeFragment();
                Bundle args = new Bundle();
                args.putString(ARG_PARAM1,param1);
                args.putString(ARG_PARAM2,param2);
                fragment.setArguments(args);
                return fragment;
            }
        
            @Override
            public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                if (getArguments() != null) {
                    mParam1 = getArguments().getString(ARG_PARAM1);
                    mParam2 = getArguments().getString(ARG_PARAM2);
        
                }
        
            }
        
            @Override
            public View onCreateView(LayoutInflater inflater,ViewGroup container,Bundle savedInstanceState) {
        
                // Inflate the layout for this fragment
                View myview = inflater.inflate(R.layout.fragment_income,container,false);
                mAuth = FirebaseAuth.getInstance();
                FirebaseUser mUser=mAuth.getCurrentUser();
                String UID=mUser.getUid();
                mIncomeDatabase= FirebaseDatabase.getInstance().getReference().child("IncomeDatabase").child(UID);
                recyclerView=myview.findViewById(R.id.recycler_income);
                LinearLayoutManager layoutManager=new LinearLayoutManager(getActivity());
        
                layoutManager.setReverseLayout(true);
                layoutManager.setStackFromEnd(true);
                recyclerView.setHasFixedSize(true);
                recyclerView.setLayoutManager(layoutManager);
        
                FirebaseRecyclerOptions<Data> options =
                        new FirebaseRecyclerOptions.Builder<Data>()
                                .setQuery(FirebaseDatabase.getInstance().getReference().child("IncomeDatabase"),Data.class)
                                .build();
        
                adapter=new IncomeAdapter(options);
                recyclerView.setAdapter(adapter);
        
                return myview;
        
            }
        
            @Override
            public void onStart() {
                super.onStart();
                adapter.startListening();
        
        
            }
        
        
            @Override
            public void onStop() {
                super.onStop();
                adapter.stopListening();
            }
            
        }

收入适配器

public class IncomeAdapter extends FirebaseRecyclerAdapter<Data,IncomeAdapter.myViewHolder>

{
    public IncomeAdapter(@NonNull FirebaseRecyclerOptions<Data> options) {
        super(options);
    }

    @Override
    protected void onBindViewHolder(@NonNull myViewHolder holder,int position,@NonNull Data model) {
        holder.type.setText(model.getType());
        holder.note.setText(model.getNote());
        holder.amount.setText(model.getAmount());


    }

    @NonNull
    @Override
    public myViewHolder onCreateViewHolder(@NonNull ViewGroup parent,int viewType) {
        View view= LayoutInflater.from(parent.getContext()).inflate(R.layout.fragment_income,parent,false);
        return new myViewHolder(view);
    }

    public class myViewHolder extends RecyclerView.ViewHolder

    {
        TextView amount,type,note;

        public myViewHolder(@NonNull View itemView) {
            super(itemView);
            type=itemView.findViewById(R.id.type_text_income);
            note=itemView.findViewById(R.id.note_text_income);
            amount=itemView.findViewById(R.id.amount_text_income);
        }
    }

}

数据.java

public class Data {
    
         private int amount;
         private String type;
         private String note;
    
    
        public Data() {
        }
    
        public Data (int amount,String s,String type,String note,String id) {
            this.amount = amount;
            this.type = type;
            this.note = note;
    
        }
    
    
        public int getAmount() {
            return amount;
        }
    
        public void setAmount(int amount) {
            this.amount = amount;
        }
    
        public String getType() {
            return type;
        }
    
        public void setType(String type) {
            this.type = type;
        }
    
        public String getNote() {
            return note;
        }
    
        public void setNote(String note) {
            this.note = note;
        }

}

杰森文件

"IncomeData" : {
    "GEyh5uOMkhQa0mCnp9oAG6W3qxD3" : {
      "-MSk7WggCS5eNG-8UNgl" : {
        "amount" : 5000,"date" : "Feb 5,2021","id" : "-MSk7WggCS5eNG-8UNgl","note" : "I got salary","type" : "Salary"
      },"-MSk7uXOANF6Q9QQ4Mml" : {
        "amount" : 10000,"id" : "-MSk7uXOANF6Q9QQ4Mml","note" : "Tesla stocks trade","type" : "Dividends"
      }