traininfo/util/FavoritesHelper.java

package dk.thoerup.traininfo.util;


import android.content.Context;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;

import dk.thoerup.traininfo.util.IntSet;


public class FavoritesHelper {

        final static String FAVORITES = "favorites";

        Context cxt;
        public FavoritesHelper(Context cxt) {
                this.cxt = cxt;
        }

        protected SharedPreferences getPrefs() {
                return cxt.getSharedPreferences("TrainStation", 0);
        }

        protected IntSet getFavorites() {
                String favoriteString = getPrefs().getString(FAVORITES, "");

                IntSet favorites = new IntSet();
                if (! favoriteString.equals("") ) {
                        favorites.fromString(favoriteString);
                }

                return favorites;
        }

        public int getSize() {
                return getFavorites().size();
        }

        public String getString() {
                return getFavorites().toString();
        }

        public boolean hasFavorite(int station) {
                IntSet favorites = getFavorites();

                return favorites.contains(station);
        }

        public void addFavorite(int newfav) {
                SharedPreferences prefs = getPrefs();
        
                IntSet favorites = getFavorites();
                favorites.add(newfav);

                Editor ed = prefs.edit();
                ed.putString(FAVORITES, favorites.toString());
                ed.commit();
        }

        public void removeFavorite(int newfav) {
                SharedPreferences prefs = getPrefs();
        
                IntSet favorites = getFavorites();
                favorites.remove(newfav);

                Editor ed = prefs.edit();
                ed.putString(FAVORITES, favorites.toString());
                ed.commit();
        }


}
1	package dk.thoerup.traininfo.util;
2
3
4	import android.content.Context;
5	import android.content.SharedPreferences;
6	import android.content.SharedPreferences.Editor;
7
8	import dk.thoerup.traininfo.util.IntSet;
9
10
11
12	public class FavoritesHelper {
13
14	final static String FAVORITES = "favorites";
15
16	Context cxt;
17	public FavoritesHelper(Context cxt) {
18	this.cxt = cxt;
19	}
20
21	protected SharedPreferences getPrefs() {
22	return cxt.getSharedPreferences("TrainStation", 0);
23	}
24
25	protected IntSet getFavorites() {
26	String favoriteString = getPrefs().getString(FAVORITES, "");
27
28	IntSet favorites = new IntSet();
29	if (! favoriteString.equals("") ) {
30	favorites.fromString(favoriteString);
31	}
32
33	return favorites;
34	}
35
36	public int getSize() {
37	return getFavorites().size();
38	}
39
40	public String getString() {
41	return getFavorites().toString();
42	}
43
44	public boolean hasFavorite(int station) {
45	IntSet favorites = getFavorites();
46
47	return favorites.contains(station);
48	}
49
50	public void addFavorite(int newfav) {
51	SharedPreferences prefs = getPrefs();
52
53	IntSet favorites = getFavorites();
54	favorites.add(newfav);
55
56	Editor ed = prefs.edit();
57	ed.putString(FAVORITES, favorites.toString());
58	ed.commit();
59	}
60
61	public void removeFavorite(int newfav) {
62	SharedPreferences prefs = getPrefs();
63
64	IntSet favorites = getFavorites();
65	favorites.remove(newfav);
66
67	Editor ed = prefs.edit();
68	ed.putString(FAVORITES, favorites.toString());
69	ed.commit();
70	}
71
72
73
74	}