ArrayList speichern und laden

1private ArrayList<HashMap<String, Object>> myList;
2
3 @Override
4 protected void onCreate(Bundle savedInstanceState) {
5 super.onCreate(savedInstanceState);
6 setContentView(R.layout.activity_main);
7
8 myList = new ArrayList<HashMap<String, Object>>();
9
10 addDataToList();
11
12 ListView mainListView = (ListView) findViewById(R.id.main_listview);
13
14 SimpleAdapter aa = new SimpleAdapter(this, myList, R.layout.row,
15 new String[] {"name", "town"},
16 new int[] {R.id.txt_name, R.id.txt_town});
17 mainListView.setAdapter(aa);
18}
19
20private void addDataToList(){
21 HashMap<String, Object> map1 = new HashMap<String, Object>();
22
23 map1.put("name", "Name");
24 map1.put("town", "Muskelgruppen");
25
26 myList.add(map1);
27
28
29 }