Problème avec recycler view

Bonjour,

J'ai suivi un tutoriel sur youtube pour la création de recycler view et cela ne fonctionne pas ai final, aucune erreur je n'ai juste pas d'affichage, c'est tout blanc.

Voici les codes :

PAGE POPULAIRE -----

package com.example.sharkprice_projet_bruno;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.MenuItem;

import com.google.android.material.bottomnavigation.BottomNavigationView;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.Query;
import com.google.firebase.database.ValueEventListener;

import java.util.ArrayList;

public class populaire extends AppCompatActivity {

    RecyclerView recyclerView;

    private DatabaseReference ref;

    private ArrayList<Offre> offreList;
    private RecyclerAdapter recyclerAdapter;
    private Context mContext;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_populaire);

        recyclerView = findViewById(R.id.recyclerView);

        LinearLayoutManager layoutManager = new LinearLayoutManager(this);
        recyclerView.setLayoutManager(layoutManager);
        recyclerView.setHasFixedSize(true);

        ref = FirebaseDatabase.getInstance().getReference();

        offreList = new ArrayList<>();

        clearAll();

        GetDataFireBase();

        BottomNavigationView navBottom = findViewById(R.id.navBar);
        navBottom.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener(){
            @Override
            public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
                switch (menuItem.getItemId()){
                    case R.id.populaire:
                        startActivity(new Intent(populaire.this, populaire.class));

                        break;

                    case R.id.historique:
                        startActivity(new Intent(populaire.this, ListeArticle.class));
                        break;

                    case R.id.ajouter:
                        startActivity(new Intent(populaire.this, ajout_offre.class));
                        break;
                }
                return true;
            }
        });
    }

    private void GetDataFireBase(){
        Query query = ref.child("Article");

        query.addValueEventListener(new ValueEventListener(){
            @Override
            public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
                clearAll();
                for(DataSnapshot snapshot : dataSnapshot.getChildren()){
                    Offre offre = new Offre();

                    offre.setDescription(snapshot.child("Description").getValue().toString());
                    offre.setMagasin(snapshot.child("Magasin").getValue().toString());
                    offre.setNomArticle(snapshot.child("Nom_article").getValue().toString());
                    offre.setPrixReduit(snapshot.child("Prix_reduit").getValue().toString());

                    offreList.add(offre);

                }

                recyclerAdapter = new RecyclerAdapter(getApplicationContext(), offreList);
                recyclerView.setAdapter(recyclerAdapter);
                recyclerAdapter.notifyDataSetChanged();
            }

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

            }
        });
    }

    private  void clearAll(){
        if (offreList != null){
            offreList.clear();

            if (recyclerAdapter != null ){
                recyclerAdapter.notifyDataSetChanged();
            }
        }

        offreList = new ArrayList<>();
    }
}

ADAPTER ------

package com.example.sharkprice_projet_bruno;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import java.util.ArrayList;

public class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.ViewHolder> {

    private static final String Tag = "RecyclerView";
    private Context mContext;
    private ArrayList<Offre> listOffre;

    public RecyclerAdapter(Context mContext, ArrayList<Offre> listOffre) {
        this.mContext = mContext;
        this.listOffre = listOffre;
    }

    @NonNull
    @Override
    public RecyclerAdapter.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.offre_item, parent, false);

        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
        holder.desc.setText(listOffre.get(position).getDescription());
        holder.mag.setText(listOffre.get(position).getMagasin());
        holder.nomArt.setText(listOffre.get(position).getNomArticle());
        holder.prix.setText(listOffre.get(position).getPrixReduit());
    }

    @Override
    public int getItemCount(){
        return listOffre.size();
    }

    public class ViewHolder extends  RecyclerView.ViewHolder{

        TextView desc;
        TextView mag;
        TextView nomArt;
        TextView prix;

        public ViewHolder(@NonNull View itemView) {
            super(itemView);
            desc = itemView.findViewById(R.id.desc);
            mag = itemView.findViewById(R.id.mag);
            nomArt = itemView.findViewById(R.id.nomArt);
            prix = itemView.findViewById(R.id.prix);
        }
    }

}

---- Offre (Variable et constructeur)

package com.example.sharkprice_projet_bruno;

public class Offre {
    String id;
    String nomArticle;
    String description;
    String prixReduit;
    String magasin;
    String email;

    public Offre(){
    }

    public Offre(String id, String nomArticle, String description, String prixReduit, String magasin, String email) {
        this.id = id;
        this.nomArticle = nomArticle;
        this.description = description;
        this.prixReduit = prixReduit;
        this.magasin = magasin;
        this.email = email;
    }

    public String getId(){
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getNomArticle(){
        return nomArticle;
    }

    public void setNomArticle(String nomArticle) {
        this.nomArticle = nomArticle;
    }

    public String getDescription(){
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    public String getPrixReduit(){
        return prixReduit;
    }

    public void setPrixReduit(String prixReduit) {
        this.prixReduit = prixReduit;
    }

    public String getMagasin(){
        return magasin;
    }

    public void setMagasin(String magasin) {
        this.magasin = magasin;
    }

    public String getEmail(){
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }
}

--- Layout Recycler

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <androidx.cardview.widget.CardView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:foreground="?android:attr/selectableItemBackground"
        app:cardElevation="2dp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <TextView
                android:id="@+id/desc"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_margin="10dp"
                android:textColor="#000000"
                android:textSize="16sp" />

            <TextView
                android:id="@+id/mag"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@+id/desc"
                android:layout_margin="10dp"
                android:textSize="16sp" />

            <TextView
                android:id="@+id/nomArt"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@+id/mag"
                android:layout_margin="10dp"
                android:textSize="16sp" />

            <TextView
                android:id="@+id/prix"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@+id/nomArt"
                android:layout_margin="10dp"
                android:textSize="16sp" />


        </RelativeLayout>

    </androidx.cardview.widget.CardView>
</androidx.constraintlayout.widget.ConstraintLayout>

Layout ou l'affichage doit avoir lieu ----

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".populaire">

    <com.google.android.material.bottomnavigation.BottomNavigationView
        android:id="@+id/navBar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#22427C"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:menu="@menu/home_menu" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/recyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />


</androidx.constraintlayout.widget.ConstraintLayout>

Merci d'avance c'est pour un projet d'école et c'est vraiment stressant...

Bonne journée/soirée à tous.