Spinner i zapis do bazy danych

package com.example.projekt_10;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import android.os.Bundle;
import android.app.Activity;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);    
        
        final Spinner sMiasta=(Spinner)findViewById(R.id.spinnerMiasta);
        Button bZapisz=(Button)findViewById(R.id.buttonZapisz);
        final EditText eImieNazwisko=(EditText)findViewById(R.id.editTextImieNazwisko);    
        SQLiteDatabase baza=openOrCreateDatabase("ksiazkaNad.db", SQLiteDatabase.OPEN_READWRITE, null);
        List<String> listaMiast = new ArrayList<String>();
        final List<String> listaIdMiast = new ArrayList<String>();
        String polaTabeli[]={"idMasta", "NazwaMiasta"};
        Cursor kursor=baza.query("MiastaSlownik", polaTabeli, null, null, null, null, null);
        kursor.moveToFirst();
        int dlKursora=kursor.getCount(); 
        
        for(int i=1;i<dlKursora;i++)
        {
        	listaMiast.add(kursor.getString(1));
        	listaIdMiast.add(kursor.getString(0));
        	kursor.moveToNext();
        }
        baza.close();  
        
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, listaMiast);
        sMiasta.setAdapter(adapter);
        AdapterView.OnItemSelectedListener wybraneMiasto= new AdapterView.OnItemSelectedListener() {
			@Override
			public void onItemSelected(AdapterView<?> arg0, View arg1,int arg2, long arg3) {}
			@Override
			public void onNothingSelected(AdapterView<?> arg0) {}
		};
        sMiasta.setOnItemSelectedListener(wybraneMiasto);
        
        bZapisz.setOnClickListener(new OnClickListener() {	
			@Override
			public void onClick(View v) {
				FileOutputStream plik;
				try {
				plik=openFileOutput("plik",MODE_APPEND);
				String zawartosc=eImieNazwisko.getText().toString();
				plik.write((zawartosc+" "+sMiasta.getSelectedItem().toString()+" idMiasta = "
                                +listaIdMiast.get(sMiasta.getSelectedItemPosition()).toString()+"\n").getBytes());
					plik.close();
				} catch (FileNotFoundException e) {
					e.printStackTrace();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		});       
    }
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }  
}