android

package com.example.svinpauk20;

import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;


public class SvinPauk20 extends AppCompatActivity implements View.OnClickListener {


    Button btn1;
    Button btn2;
    Intent intent;
    EditText txt1;
    EditText txt2;
    ArrayList list;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        list = new ArrayList<>();

        txt1 = (EditText) findViewById(R.id.edtTxt);
        txt2 = (EditText) findViewById(R.id.edtTxt2);

        btn1 = (Button)findViewById(R.id.btnsave);
        btn1.setOnClickListener(this);

        btn2 = (Button)findViewById(R.id.btnadd);
        btn2.setOnClickListener(this);



    }

    @Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.btnsave:
                intent = new Intent(this,SvinPaukTwo.class);
                intent.putExtra("arraylist",list );
                System.out.println(list);
                startActivity(intent);
                break;

            case R.id.btnadd:
                int position=0;
                position++;
                list.add(new WorldMap(String.valueOf(txt1.getText()),String.valueOf(txt2.getText()),position));
                txt1.setText(null);
                txt2.setText(null);
              break;
            default:
                break;
        }


            }
    public class WorldMap extends ArrayList {
        final static String Country = "Country";
        final static String City = "City";
        final static int position = 0;

        public WorldMap(String сountry, String city,int position) {
            super();
            super.add(сountry);
            super.add(city);
            super.add(position);
        }

        public String getcountryW(){
            return Country;
        }
        public int getposition(){
            return position;
        }

        public String getcityW(){
            return City;
        }

    };
    }
--передаю в это активити
package com.example.svinpauk20;

import androidx.appcompat.app.AppCompatActivity;

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

import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;

import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;



public class SvinPaukTwo extends AppCompatActivity implements View.OnClickListener {
    private MyAD mAdapter;
    Button btn1;
    Intent intent;

    ListView lvSimple;

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

        lvSimple = (ListView) findViewById(R.id.LV);
        ArrayList<SvinPauk20.WorldMap> arl = (ArrayList<SvinPauk20.WorldMap>) getIntent().getSerializableExtra("arraylist");

        mAdapter = new MyAD(this,arl);
        lvSimple.setAdapter(mAdapter);


        btn1 = (Button) findViewById(R.id.btnBack);
        btn1.setOnClickListener(this);

    }
    @Override
    public void onClick(View v) {
        intent = new Intent(this, SvinPauk20.class);
        startActivity(intent);
    };


    public class MyAD extends ArrayAdapter<SvinPauk20.WorldMap> {

        private Context mContext;
        private ArrayList<SvinPauk20.WorldMap> myList = new ArrayList();

        public MyAD(Context context, ArrayList<SvinPauk20.WorldMap> list) {
            super(context, 0, list);
            mContext = context;
            myList = list;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            View listItem = convertView;
            if (listItem == null)
                listItem = LayoutInflater.from(mContext).inflate(R.layout.layoutr, parent, false);

            List<SvinPauk20.WorldMap> Map = myList.get(position);


            TextView name = (TextView) listItem.findViewById(R.id.textView);
            name.setText(((SvinPauk20.WorldMap) Map).getcountryW());

            TextView release = (TextView) listItem.findViewById(R.id.textView2);
            release.setText(((SvinPauk20.WorldMap) Map).getcityW());

            return listItem;
        }
    };


}