Skrive objekt til ListView

Java kode 

 @override
 public String toString() {
    return this.Navn + ". " + this.Dato;
 }

Java kode 

 @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
 
         ListView myListView = (ListView)findViewById(R.id.myListView);
         ArrayList<Event> myEvents = new ArrayList<Event>();
         Event test = new Event();
         myEvents.add(new Event("Niels", test.getDaysBetween("2014/04/18")));
         myEvents.add(new Event("Ejnar", test.getDaysBetween("2014/05/28")));
         myEvents.add(new Event("Viggo", test.getDaysBetween("2014/11/25")));
         myEvents.add(new Event("Anette", test.getDaysBetween("2014/08/13")));
         
         String tekst = test.toString1();
         final ArrayAdapter<Event> aa;
         
         
         aa = new ArrayAdapter<Event>(this, android.R.layout.simple_list_item_1, myEvents);
 
         myListView.setAdapter(aa);
         
         
         
         
     for (int i=0; i<myEvents.size(); i++){
         myEvents.add(0, myEvents.get(i));
         aa.notifyDataSetChanged();
     }        
         }