Do a search Inside a custom Listview with firebase

Question

Basically my project resembles a social network, using the firebase Restaltime database, but I came across a problem, I created a custom listview and my idea was... Since I had 2 children >Users and >Posts, in the Child post there is a user email node, that is, within the listview I would capture the user/avatar name (using the field/email I had in the Child post) ... but what happened was that.. it didn’t work, I tried several things but nothing worked, if someone could help me... I would be EXTREMELY happy

(in this case I simply tried to take the name of the user.. what happens is only carries the name of a user, or only the last one of the listview)

EDIT. AFTER SOME TESTS I NOTICED THAT, MY CODE ONLY UPDATES THE LAST ITEM OF LISTVIEW, BUT WITH THE VALUE THAT SHOULD GO TO THE FIRST ITEM? MAKES NO SENSE TO ME

follows the codes

1.Screen that calls the Listview

package com.gabriel.arhur.team.kindness02project;


public class TelaInicial extends AppCompatActivity {
    FloatingActionButton floatButton;

    ListView listV_dados;
    private List<Post> listPost = new ArrayList<Post>();
    private PostTI_ListAdapter arrayAdapterPost;
    FirebaseDatabase firebaseDatabase;
    DatabaseReference databaseReference;
    Post postSelect = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_tela_inicial);
        getSupportActionBar().setTitle("Tela Inicial");
        floatButton = findViewById(R.id.floatboton);
        listV_dados = findViewById(R.id.List_posts);
        iniciaFirebase();
        eventoFirebase();
        eventoonclick();


        final SwipeRefreshLayout mSwipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipe);
        mSwipeRefreshLayout.setColorSchemeColors(
                Color.RED, Color.BLUE, Color.GREEN
        );
        mSwipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
            @Override
            public void onRefresh() {

                new Handler().postDelayed(new Runnable() {

                    @Override
                    public void run() {

                        eventoFirebase();
                        mSwipeRefreshLayout.setRefreshing(false);
                        Snackbar snackbar = Snackbar
                                .make(mSwipeRefreshLayout, "Recarregado", Snackbar.LENGTH_LONG);

                        snackbar.show();
                    }

                },3000);
            }
        });
    }


    private void iniciaFirebase() {
        FirebaseApp.initializeApp(TelaInicial.this);
        firebaseDatabase = FirebaseDatabase.getInstance();
        databaseReference = firebaseDatabase.getReference();
    }

    private void eventoFirebase() {
        databaseReference.child("Post").addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(DataSnapshot dataSnapshot) {
                listPost.clear();
                for (DataSnapshot objSnapshot : dataSnapshot.getChildren()) {
                    Post p = objSnapshot.getValue(Post.class);
                    listPost.add(p);

                }

                arrayAdapterPost = new PostTI_ListAdapter(TelaInicial.this, R.layout.activity_post_ti__list_adapter, listPost);
                listV_dados.setAdapter(arrayAdapterPost);

            }

            @Override
            public void onCancelled(DatabaseError databaseError) {

            }
        });
    }

    private void eventoonclick() {
        floatButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent i = new Intent(TelaInicial.this, NovosPosts.class);
                startActivity(i);
            }
        });
        listV_dados.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

                postSelect = (Post) parent.getItemAtPosition(position);
                alert(postSelect.getUid());
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        if (id == R.id.menu_pesquisa) {
            alert("pesquisa");
        } else if (id == R.id.menu_Perfil) {
            alert("perfil");
            Intent i = new Intent(TelaInicial.this, PerfilUser.class);
            startActivity(i);
        }
        return true;
    }


    private void alert(String msg) {
        Toast.makeText(TelaInicial.this, msg, Toast.LENGTH_LONG).show();
    }

}

2.Code of Listview

public class PostTI_ListAdapter extends ArrayAdapter<Post> {
    private Activity context;
    private int resource;
    private List<Post> list;


    DatabaseReference databaseReference;
    TextView textDescricao,textTitulopost,textLocalização,textnomeperfil;
    ImageView  PostImage;
    String nome;

    public PostTI_ListAdapter(@NonNull Activity context, @LayoutRes int resource, @NonNull List<Post> objects) {
        super(context, resource, objects);
        this.context = context;
        this.resource = resource;
        list = objects;


    }

    @NonNull
    @Override
    public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {

       LayoutInflater inflater = context.getLayoutInflater();
        View v = inflater.inflate(resource, null);
        textDescricao= v.findViewById(R.id.textDescrição);
        textTitulopost = v.findViewById(R.id.textTitulo);
        textLocalização = v.findViewById(R.id.textlocal);
        PostImage = v.findViewById(R.id.imgPost);
        textnomeperfil = v.findViewById(R.id.textnomeperfil);


        textDescricao.setText(list.get(position).getDescricao_post());
        textTitulopost.setText(list.get(position).getTitulo());
        Glide.with(context).load(list.get(position).getUrl_image()).into(PostImage);
        textLocalização.setText(((list.get(position).getEstado()))+"-"+((list.get(position).getCidade())));


//Pesquisa... porem nao deu certo

        String email= list.get(position).getCriador();
notifyDataSetChanged();
        DatabaseReference raiz = FirebaseDatabase.getInstance().getReference();
        Query query =raiz.child("Usuario").orderByChild("email").equalTo(email);
        query.addValueEventListener(new ValueEventListener() {
            @Override
            public void onDataChange(DataSnapshot dataSnapshot) {
                for (DataSnapshot objSnapshot:dataSnapshot.getChildren()){
                    textnomeperfil.setText(objSnapshot.child("nome").getValue().toString());



                }

            }
            @Override
            public void onCancelled(DatabaseError databaseError) {

            }
        });





        return v;
    }

}

3. follows the bank