我无法从实时数据库（Firebase）中检索数据

Question

我进行了编码，但似乎无法从数据库中检索数据。我不确定出了什么问题。我做了编码。我的Logcat下没有显示任何错误。所以我不确定我的代码有什么问题。

public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        View view = inflater.inflate(R.layout.fragment_account, container, false);

        tv_name=view.findViewById(R.id.tv_name);
        tv_email=view.findViewById(R.id.tv_email);
        tv_gender=view.findViewById(R.id.tv_gender);
        tv_home=view.findViewById(R.id.tv_home);
        tv_phone=view.findViewById(R.id.tv_phone);

        //ini
        firebaseAuth = FirebaseAuth.getInstance();
        currentUser = firebaseAuth.getCurrentUser();
        databaseReference = FirebaseDatabase.getInstance().getReference("Customer");
        userID = currentUser.getUid();

        //For Retrieve Information
        databaseReference.child("Customer").child(firebaseAuth.getUid()).addValueEventListener(new ValueEventListener() {


            @Override
            public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
                Log.d( TAG, "onDataChange :" +dataSnapshot);
                if (dataSnapshot.getValue() !=null){
                    Customer cust = dataSnapshot.getValue(Customer.class);
                    tv_name.setText(cust.name);
                    tv_email.setText(cust.email);
                    tv_gender.setText(cust.gender);
                    tv_home.setText(cust.home_address);
                    tv_phone.setText(cust.telephone_number);
                }
            }

            @Override
            public void onCancelled(@NonNull DatabaseError databaseError) {

            }
        });

        return view;
    }