HashMap erzeugen - dauerhaft im Speicher halten?

1mport java.util.HashMap;
2
3import org.json.JSONArray;
4
5import android.app.Activity;
6import android.content.SharedPreferences;
7
8
9public class DataName_ID {
10 private HashMap<Integer, String> hash_data = new HashMap<Integer, String>();
11 private HashMap<Integer, String> hash_land = new HashMap<Integer, String>();
12
13 public DataName_ID(Activity activity){
14 DataHashMapErzeugen(activity);
15 LandHashMapErzeugen(activity);
16 }
17
18 public String getDataName(int id){
19 return hash_data.get(id);
20 }
21
22 private void DataHashMapErzeugen(Activity activity){
23 SharedPreferences settings = activity
24 .getSharedPreferences("Daten", 0);
25 String text = settings.getString("daten", "0");
26
27 if(!text.equals("0")){
28 try {
29 JSONArray Jarr = new JSONArray(text);
30 for (int i = 0; i < Jarr.length(); i++) {
31 hash_liga.put(Jarr.getJSONObject(i).getInt("id_data"), Jarr.getJSONObject(i).getString("data_name_de"));
32 }
33 } catch (Exception e) {
34 e.printStackTrace();
35 }
36 }
37 }
38
39 private void LandHashMapErzeugen(Activity activity){
40 SharedPreferences settings = activity
41 .getSharedPreferences("Daten", 0);
42 String text = settings.getString("daten", "0");
43
44 if(!text.equals("0")){
45 try {
46 JSONArray Jarr = new JSONArray(text);
47 for (int i = 0; i < Jarr.length(); i++) {
48 hash_land.put(Jarr.getJSONObject(i).getInt("id_data"), Jarr.getJSONObject(i).getString("land_name_de"));
49 }
50 } catch (Exception e) {
51 e.printStackTrace();
52 }
53 }
54 }
55}