Firebase 实时数据库仅使用用户 ID 检索数据

我需要帮助伙计们。我正在尝试从仅由用户插入的 firebase 数据库中检索数据。我设法让用户将他的 ID 与他的数据一起发送，现在我只想获取他的数据。

这是代码

 public View onCreateView(@NonNull LayoutInflater inflater,
                             ViewGroup container, Bundle savedInstanceState) {
        homeViewModel =
                ViewModelProviders.of(this).get(HomeViewModel.class);
        View root = inflater.inflate(R.layout.fragment_home, container, false);

        mUploads = new ArrayList<>();


        mStorage = FirebaseStorage.getInstance();

        fAuth = FirebaseAuth.getInstance();

        final String id = fAuth.getCurrentUser().getUid();

        final Upload u = new Upload();

        mDatabaseRef = FirebaseDatabase.getInstance().getReference("uploads");

        //Query query = mDatabaseRef.child("").equalTo("-MUiNO146Q64ztT_kY9y");

     
        mDBListener = mDatabaseRef.addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(DataSnapshot dataSnapshot) {

                mUploads.clear();
                Upload upload2 = dataSnapshot.getValue(Upload.class);

                    for (DataSnapshot postSnapshot : dataSnapshot.getChildren()) {
                        Upload upload = postSnapshot.getValue(Upload.class);
                        //Toast.makeText(getContext(), id, Toast.LENGTH_LONG).show();
                            upload.setKey(postSnapshot.getKey());
                            mUploads.add(upload);

                    }







                mAdapter.notifyDataSetChanged();

                mProgressCircle.setVisibility(View.INVISIBLE);
            }

            @Override
            public void onCancelled(DatabaseError databaseError) {
                Toast.makeText(getActivity(), databaseError.getMessage(), Toast.LENGTH_SHORT).show();
                mProgressCircle.setVisibility(View.INVISIBLE);
            }
        });



        return root;
    }

此图显示了数据库的结构