Android Studio s26ListViewDemo04 (삭제 기능 )

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package kr.android.s26listviewdemo04;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {

    ArrayList<MyItem> arItem;
    ListView myList;

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

        arItem = new ArrayList<MyItem>();
        arItem.add(new MyItem(R.mipmap.ic_launcher,"삼성 노트북"));
        arItem.add(new MyItem(R.mipmap.ic_launcher,"LG 에어컨"));
        arItem.add(new MyItem(R.mipmap.ic_launcher,"현대 소나타"));

        //MyListAdapter 생성
        MyListAdapter myAdapter = new MyListAdapter(this,R.layout.widget_icontext,arItem);
        
        //ListView에 MyListAdapter 등록
        myList = (ListView)findViewById(R.id.list);
        myList.setAdapter(myAdapter);
    }
}

//리스트 뷰에 출력할 항목
class MyItem{
    int icon;
    String name;

    MyItem(int icon,String name){
        this.icon = icon;
        this.name = name;
    }
}

//커스텀 어댑터 클래스
class MyListAdapter extends BaseAdapter {
    Context context;
    ArrayList<MyItem> alist;
    int layout;
    LayoutInflater inflater;

    public MyListAdapter(Context context, int layout, ArrayList<MyItem> alist){
        this.context = context;
        this.layout = layout;
        this.alist = alist;

        //ListView에서 사용할 view를 정의한 xml을 읽어오기 위해 LayoutInflater 객체 생성
        inflater = LayoutInflater.from(context);
    }

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

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

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

    @Override
    public View getView(int position, View view, ViewGroup viewGroup) {

        final int pos = position;
        if(view == null){
            view = inflater.inflate(layout,null);
        }
        ImageView img = (ImageView)view.findViewById(R.id.img);
        img.setImageResource(alist.get(position).icon);

        TextView text = (TextView)view.findViewById(R.id.text);
        text.setText(alist.get(position).name);

        Button btn = (Button)view.findViewById(R.id.btn);
        btn.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v){
                String str = alist.get(pos).name + "를 주문합니다.";
                Toast.makeText(context,str,Toast.LENGTH_SHORT).show();
            }
        });

        return view;
    }
}