ExpandableListView ne se déroule pas et affiche aucun contenu

bonjour,
je suis sur un projet et j'ai besoin d'un ExpandableListView, j'ai suivit ce tuto https://www.youtube.com/watch?v=iMoN414EfSQ j'ai tout suivit mais ma View ne se déploie pas.
sachant que je n'ai aucun error dans mon logcat le seul message qui s'affiche quand j'appuis sur mon ExpandableListView c'est : D/SettingsInterface: from settings cache , name = sound_effects_enabled , value = 0.
Pourtant j'ai bien introduit du contenu dans le child.

Code java de l'activité principale:

Code:

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package com.example.bjrcontrole;
 
import androidx.appcompat.app.AppCompatActivity;
 
import android.os.Bundle;
import android.widget.ExpandableListAdapter;
import android.widget.ExpandableListView;
 
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
 
public class compte_rendu extends AppCompatActivity {
 
    ExpandableListView expandableListView;
 
    List<String> title;
    Map<String, List<String>> controle;
    ExpandableListAdapter listAdapater;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_compte_rendu);
 
        expandableListView = (ExpandableListView) findViewById(R.id.ExpandableListView);
        fillData();
 
        listAdapater = new myListAdapter(this,title,controle);
        expandableListView.setAdapter(listAdapater);
    }
 
    public void fillData (){
 
        title = new ArrayList<String>();
        controle = new HashMap<String, List<String>>();
 
        title.add("Controle non conforme :");
 
        List<String> nonComforme = new ArrayList<String>();
 
        nonComforme.add("test1");
        nonComforme.add("test2");
        nonComforme.add("test3");
 
        controle.put(title.get(0),nonComforme);
    }
}

Code java de ma ListAdapter:

Code:

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package com.example.bjrcontrole;
 
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.TextView;
 
import java.util.List;
import java.util.Map;
 
public class myListAdapter extends BaseExpandableListAdapter {
 
    Context context;
    List<String> title;
    Map<String, List<String>> controle;
 
    public myListAdapter(Context context, List<String> title, Map<String, List<String>> controle) {
        this.context = context;
        this.title = title;
        this.controle = controle;
    }
 
    @Override
    public int getGroupCount() {
        return title.size();
    }
 
    @Override
    public int getChildrenCount(int groupPosition) {
        return controle.get(title.get(groupPosition)).size();
    }
 
    @Override
    public Object getGroup(int groupPosition) {
        return title.get(groupPosition);
    }
 
    @Override
    public Object getChild(int groupPosition, int childPosition) {
        return controle.get(title.get(groupPosition)).get(childPosition);
    }
 
    @Override
    public long getGroupId(int groupPosition) {
        return groupPosition;
    }
 
    @Override
    public long getChildId(int groupPosition, int childPosition) {
        return childPosition;
    }
 
    @Override
    public boolean hasStableIds() {
        return false;
    }
 
    @Override
    public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
 
        String titre = (String) getGroup(groupPosition);
        if(convertView == null){
            LayoutInflater inflater = (LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.list_group,null);
        }
        TextView txttittle = (TextView) convertView.findViewById(R.id.title);
        txttittle.setText(titre);
 
        return convertView;
    }
 
    @Override
    public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
 
        String ctrl = (String) getChild(groupPosition, childPosition);
        if(convertView == null){
            LayoutInflater inflater = (LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.list_item,null);
        }
        TextView txtcontrole = (TextView) convertView.findViewById(R.id.textItem);
        txtcontrole.setText(ctrl);
 
        return convertView;
    }
 
    @Override
    public boolean isChildSelectable(int groupPosition, int childPosition) {
        return true;
    }
}

XML de l'activité principal:

Code:

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<?xml version="1.0" encoding="utf-8"?>
<ScrollView 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=".compte_rendu">
 
 
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">
 
        <TableRow
            android:layout_width="match_parent"
            android:layout_height="wrap_content" >
 
            <TextView
                android:id="@+id/textView75"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Controle conforme :" />
 
            <TextView
                android:id="@+id/textView81"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="oui"/>
        </TableRow>
 
        <ExpandableListView
            android:id="@+id/ExpandableListView"
            android:layout_width="match_parent"
            android:layout_height="match_parent" >
 
        </ExpandableListView>
    </LinearLayout>
</ScrollView>

XML des titre/group :

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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">
 
 
    <TextView
        android:id="@+id/title"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="titre" />
 
</LinearLayout>

XML de mon contenu :

Code:

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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
 
    <TextView
        android:id="@+id/textItem"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="test1" />
</LinearLayout>

Voila j'espére que vous aller reussir a m'aider.
Merci d'avance pour vos réponse.