Problem creating ListView item on button press

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/main_view"

>


    <ListView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/listView"
        android:divider="@null"/>
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/btn"
        android:text="Create a new item"/>

</LinearLayout>

CustomeAdapter.java

package com.example.android.scoresorter;

import android.content.Context;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import java.util.ArrayList;


    public class CustomeAdapter extends BaseAdapter {


        private Context context;
        public static ArrayList<EditModel> editModelArrayList;

        public CustomeAdapter(Context context, ArrayList<EditModel> editModelArrayList) {

            this.context = context;
            CustomeAdapter.editModelArrayList = editModelArrayList;
        }

        @Override
        public int getViewTypeCount() {
            return getCount();
        }
        @Override
        public int getItemViewType(int position) {

            return position;
        }

        @Override
        public int getCount() {
            return editModelArrayList.size();
        }

        @Override
        public Object getItem(int position) {
            return editModelArrayList.get(position);
        }

        @Override
        public long getItemId(int position) {
            return 0;
        }

        @Override
        public View getView(final int position, View convertView, ViewGroup parent) {
            final ViewHolder holder;

            if (convertView == null) {
                holder = new ViewHolder();
                LayoutInflater inflater = (LayoutInflater) context
                        .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                convertView = inflater.inflate(R.layout.lv_item, null, true);

                holder.editText = convertView.findViewById(R.id.editid);

                convertView.setTag(holder);
            }else {
                // the getTag returns the viewHolder object set as a tag to the view
                holder = (ViewHolder)convertView.getTag();
            }

            holder.editText.setText(editModelArrayList.get(position).getEditTextValue());

            holder.editText.addTextChangedListener(new TextWatcher() {
                @Override
                public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {

                }

                @Override
                public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
                    editModelArrayList.get(position).setEditTextValue(holder.editText.getText().toString());

                }

                @Override
                public void afterTextChanged(Editable editable) {

                }


            });

            return convertView;
        }

        private class ViewHolder {

            protected EditText editText;

        }

    }

EditModel.java

package com.example.android.scoresorter;

public class EditModel {
    private String editTextValue;

    public String getEditTextValue() {
        return editTextValue;
    }

    public void setEditTextValue(String editTextValue) {
        this.editTextValue = editTextValue;
    }
}

lv_item.xml

<?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">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        >

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="12dp"
            android:textColor="#000"
            android:text="TextView:"
            android:layout_weight="1"/>

        <EditText
            android:id="@+id/editid"
            android:layout_width="wrap_content"
            android:layout_height="50dp"
            android:layout_marginTop="10dp"
            android:gravity="end"
            android:paddingLeft="10dp"
            android:paddingRight="20dp"
            android:text="hello"
            android:textColor="#000" />

    </LinearLayout>


    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:layout_marginTop="10dp"
        android:background="@color/colorAccent"/>

</LinearLayout>

MainActivity.java

package com.example.android.scoresorter;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;

import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {

    public Button btn;
    private ListView lv;
    private CustomeAdapter customeAdapter;
    public ArrayList<EditModel> editModelArrayList;

    int populateListMaxNum  =3;
    int listNumber = populateListMaxNum;

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

        lv = (ListView) findViewById(R.id.listView);
        btn = (Button) findViewById(R.id.btn);

        editModelArrayList = populateList();
        customeAdapter = new CustomeAdapter(this,editModelArrayList);
        lv.setAdapter(customeAdapter);

        /* TODO activate button */

        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
               addToList();
                Toast.makeText(getApplicationContext(), "button", Toast.LENGTH_LONG).show();

            }
        });


    }

    private ArrayList<EditModel> populateList(){ //this part works perfectly

        ArrayList<EditModel> list = new ArrayList<>();

        for(int i = 0; i < populateListMaxNum; i++){
            EditModel editModel = new EditModel();
            //editModel.setEditTextValue(String.valueOf(i));
            list.add(editModel);
        }

        return list;
    }
    /*TODO make it work = expand */

    private void addToList(){  // this part doesn't work nor it doesn't fail

        EditModel editModel = new EditModel();

        editModelArrayList.add(editModel);
        customeAdapter.notifyDataSetChanged();
        
    }

}