aktuelle GPS-Koordinaten auslesen

1// Aktuelle Position bestimmen
2 LocationManager lm = (LocationManager) this.getSystemService(LOCATION_SERVICE);
3 loc = lm.getLastKnownLocation("gps");
4
5 if (loc == null)
6 {
7 Log.d(LOG_TAG, "Location ist null");
8 } else
9 {
10 Log.d(LOG_TAG, "Location ist: " + loc.getLatitude());
11 }

1public class map extends MapActivity{
2
3 final static String LOG_TAG = "Deja-vu";
4 private int latitude = 0;
5 private int longitude = 0;
6
7 // View-Objekte
8 private List<Overlay> overlayList;
9 private Drawable drawable;
10 private map_stecknadel stecknadel;
11 private Spinner spinner;
12 private MapView mapview;
13 private EditText edittext;
14 private LocationManager locmanager;
15 private Location loc;
16
17 // Datenbankvariablen
18 final static String MY_DB_NAME = "Dejavu";
19 final static String MY_DB_TABLE = "tb_daten";
20 final static String TAG = "ensacom";
21
22 public void onCreate(Bundle savedInstanceState) {
23 super.onCreate(savedInstanceState);
24 setContentView(R.layout.map);
25
26 // Spinner mit Daten abfüllen
27 spinner = (Spinner) findViewById(R.id.spinner);
28 ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
29 this, R.array.spinner_data, android.R.layout.simple_spinner_item);
30 adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
31 spinner.setAdapter(adapter);
32
33 locmanager = (LocationManager) this.getSystemService(LOCATION_SERVICE);
34 locmanager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 5000, 0, (LocationListener) this);
35
36 }
37
38 public void onLocationChanged(Location loc) {
39 if (loc != null) {
40 latitude = (int) loc.getLatitude();
41 longitude = (int) loc.getLongitude();
42 Log.d(LOG_TAG, "Location wurde gewechslet");
43 // Jetzt kann die Map gesteuert werden
44 createMap();
45 }
46 }
47
48 private void createMap() {
49
50 // Aktuellen Koordinatenpunkt erstellen
51 GeoPoint point = new GeoPoint(latitude, longitude);
52
53 // MapView Einstellungen setzen
54 mapview = (MapView) findViewById(R.id.mapview);
55 mapview.setBuiltInZoomControls(true);
56 mapview.setStreetView(true);
57 MapController controller = mapview.getController();
58 int zoomlevel = mapview.getMaxZoomLevel();
59 controller.setZoom(zoomlevel - 4);
60 controller.setCenter(point);
61
62 // Stecknadel erstellen
63 overlayList = mapview.getOverlays();
64 drawable = this.getResources().getDrawable(R.drawable.stecknadel);
65 stecknadel = new map_stecknadel(drawable);
66 OverlayItem overlayitem = new OverlayItem(point, "", "");
67
68 // Stecknadel hinzufügen
69 stecknadel.addStecknadel(overlayitem);
70 overlayList.add(stecknadel);
71
72 }

105-09 16:55:28.077: ERROR/AndroidRuntime(372): Caused by: java.lang.ClassCastException: ch.kaestlibeutler.map
205-09 16:55:28.077: ERROR/AndroidRuntime(372): at ch.kaestlibeutler.map.onCreate(map.java:57)
305-09 16:55:28.077: ERROR/AndroidRuntime(372): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
405-09 16:55:28.077: ERROR/AndroidRuntime(372): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
505-09 16:55:28.077: ERROR/AndroidRuntime(372): ... 11 more

1locmanager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 5000, 0, (LocationListener) this);