EditText input into array help plz!

[notageekgirl]

I have an input box (EditText1)

1. that i want to keep adding values and save them to an Array

2. then when am done, i can click the done button and it can take me to the next screen and I can display the values or call the values of the array.. this is what i have so far
1. Done Button Works 2. Add more button and storing to array doesn't quite work....HELP PLZ,
Thanks

import java.util.ArrayList;

import android.widget.EditText;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.Button;
import android.view.View;
import android.widget.Toast;
public class Screen2 extends Activity {
    private EditText txt1;
    String ag;
        
    ArrayList<String> playerList = new ArrayList<String>();
    String playerlist[];

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.screen2);

        // edittext1 or textview1
        txt1 = (EditText) findViewById(R.id.editText1);
        ag = txt1.getText().toString();

Done Button:

        // done button
        // -----done button-------
        Button done = (Button) findViewById(R.id.button2);
        done.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view) {
                        
            if(txt1.getText().length() != 0){
                String ag = "Players:," +txt1.getText().toString();
                 //playerList.add(ag);
                Toast.makeText(getBaseContext(), ag,
                Toast.LENGTH_SHORT).show();
        
            Intent myIntent = new Intent(view.getContext(),
                Screen3.class);
                    startActivityForResult(myIntent, 0);
                                
            }else if (txt1.getText().length() == 0){
                String ag = "Error!! Enter Player Name";
                    Toast.makeText(getBaseContext(), ag,
            Toast.LENGTH_SHORT).show();
            }}

            });

Add more items button, need help here

        //add more items button
        Button more = (Button) findViewById(R.id.button1);
        more.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view){
                if(txt1.getText().length() != 0){
                    String ag = "Players:," +txt1.getText().toString();
                     playerList.add(ag);
                    Toast.makeText(getBaseContext(), ag,
                    Toast.LENGTH_SHORT).show();
                    
                Intent myIntent = new Intent(view.getContext(),
                        Screen2.class);
                            startActivityForResult(myIntent, 0);
            }
            }

        });
}}