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    <p>A couple of things:</p> <ol> <li><p>What is your AVD API level? Crashes like this one are a known issue under 2.3.</p></li> <li><p>How are you setting the mock coordinates? Via the emulator controls in Eclipse, or via Telnet?</p></li> <li><p>Let's have a look at the permissions in your manifest. Several permissions are necessary after the manifest tag for localisation to work properly:</p> <p>uses-permission android:name="android.permission.INTERNET" uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION"</p></li> </ol> <p>Here's how I request updates for the user position and set POIs for as overlay items:</p> <pre><code> package com.snackrocket.location; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import android.graphics.drawable.Drawable; import android.location.Geocoder; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.Bundle; import android.widget.SimpleAdapter; import android.widget.TextView; import com.google.android.maps.GeoPoint; import com.google.android.maps.MapActivity; import com.google.android.maps.MapController; import com.google.android.maps.MapView; import com.google.android.maps.MyLocationOverlay; import com.google.android.maps.Overlay; import com.google.android.maps.OverlayItem; import com.snackrocket.R; public class SrPlacesActivity extends MapActivity implements LocationListener { private final static ArrayList&lt;HashMap&lt;String, Object&gt;&gt; POIS = new ArrayList&lt;HashMap&lt;String, Object&gt;&gt;(); static { HashMap&lt;String, Object&gt; row = new HashMap&lt;String, Object&gt;(); row.put("Name", "Sushi Tei"); row.put("Description", "Sushi and Much More"); row.put("Longitude", (101.6769441 * 1E6)); row.put("Latitude", (3.1184736 * 1E6)); POIS.add(row); row = new HashMap&lt;String, Object&gt;(); row.put("Name", "Devi's Corner"); row.put("Description", "Quality Mamak"); row.put("Longitude", (101.6716426 * 1E6)); row.put("Latitude", (3.1313672 * 1E6)); POIS.add(row); row = new HashMap&lt;String, Object&gt;(); row.put("Name", "KFC"); row.put("Description", "The Colonel's Secret Recipe"); row.put("Longitude", (101.650006 * 1E6)); row.put("Latitude", (3.117497 * 1E6)); POIS.add(row); row = new HashMap&lt;String, Object&gt;(); row.put("Name", "McDonalds"); row.put("Description", "I'm lovin it"); row.put("Longitude", (101.6723386 * 1E6)); row.put("Latitude", (3.1328851 * 1E6)); POIS.add(row); row = new HashMap&lt;String, Object&gt;(); row.put("Name", "DHaven"); row.put("Description", "Thai Food and Chicha"); row.put("Longitude", (101.6710465 * 1E6)); row.put("Latitude", (3.1315682 * 1E6)); POIS.add(row); } private MapView myMap; private MyLocationOverlay myLocOverlay; private GeoPoint homebase = new GeoPoint((int) (3.1 * 1E6), (int) (101.7 * 1E6)); private int lat; private int lng; private GeoPoint myPoint = homebase;; private Geocoder geocoder; private MapController mapController; private LocationManager locationManager; private TextView locationText; private void initMap() { myMap = (MapView) findViewById(R.id.mapview); } private void initMyLocation() { myLocOverlay = new MyLocationOverlay(this, myMap); myLocOverlay.enableMyLocation(); myMap.getOverlays().add(myLocOverlay); } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.setContentView(R.layout.mapview); // Get location manager locationManager = (LocationManager) this .getSystemService(LOCATION_SERVICE); // Create geocoder geocoder = new Geocoder(this); GeoPoint userPosition = new GeoPoint((int) (lng * 1E6), (int) (lat * 1E6)); // Prevents NullPointerException if (userPosition != null) { userPosition = myPoint; } // Inits initMap(); initMyLocation(); // Zoom int zoomLevel = 14; myMap.setBuiltInZoomControls(true); MapController mapController = myMap.getController(); mapController.setCenter(myPoint); mapController.setZoom(zoomLevel); // Set custom overlay template List&lt;Overlay&gt; mapOverlays = myMap.getOverlays(); // Create my location overlay myLocOverlay = new MyLocationOverlay(this, myMap); myLocOverlay.enableMyLocation(); // Enable compass myLocOverlay.enableCompass(); // Add my location overlay mapOverlays.add(myLocOverlay); // Cycle through POIs and do some magic GeoPoint point; OverlayItem overlayItem; Drawable drawable = getResources().getDrawable(R.drawable.iconr); for (HashMap&lt;String, Object&gt; poi : POIS) { // Create POI overlay SrItemizedOverlay itemizedOverlay = new SrItemizedOverlay(drawable, this); point = new GeoPoint(((Double) poi.get("Latitude")).intValue(), ((Double) poi.get("Longitude")).intValue()); overlayItem = new OverlayItem(point, (String) poi.get("Name"), (String) poi.get("Description")); itemizedOverlay.addOverlay(overlayItem); // Add POI overlay mapOverlays.add(itemizedOverlay); } } @Override protected boolean isRouteDisplayed() { return false; } @Override protected void onResume() { super.onResume(); locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 10, this); } @Override protected void onPause() { super.onPause(); locationManager.removeUpdates(this); } public void onStatusChanged(String provider, int status, Bundle extras) { // TODO Auto-generated method stub } public void onProviderDisabled(String provider) { // TODO Auto-generated method stub } public void onProviderEnabled(String provider) { // TODO Auto-generated method stub } public void onLocationChanged(Location location) { location = locationManager .getLastKnownLocation(LocationManager.GPS_PROVIDER); lat = (int) (location.getLatitude()); lng = (int) (location.getLongitude()); } } </code></pre> <p>And here's my itemised overlay logic:</p> <pre><code>package com.snackrocket.location; import java.util.ArrayList; import android.app.AlertDialog; import android.content.Context; import android.graphics.drawable.Drawable; import com.google.android.maps.ItemizedOverlay; import com.google.android.maps.OverlayItem; public class SrItemizedOverlay extends ItemizedOverlay&lt;OverlayItem&gt; { Context mContext; // Creates ArrayList for ItemizedOverlay private ArrayList&lt;OverlayItem&gt; mOverlays = new ArrayList&lt;OverlayItem&gt;(); public SrItemizedOverlay(Drawable defaultMarker) { super(boundCenterBottom(defaultMarker)); } public SrItemizedOverlay(Drawable defaultMarker, Context context) { super(boundCenterBottom(defaultMarker)); mContext = context; } // Adds OverlayItems to the ArrayList public void addOverlay(OverlayItem overlay) { mOverlays.add(overlay); populate(); } // Returns OverlayItem specified by integer @Override protected OverlayItem createItem(int i) { return mOverlays.get(i); } // Returns current number of OverlayItems in the ArrayList @Override public int size() { return mOverlays.size(); } @Override protected boolean onTap(int index) { OverlayItem item = mOverlays.get(index); AlertDialog.Builder dialog = new AlertDialog.Builder(mContext); dialog.setTitle(item.getTitle()); dialog.setMessage(item.getSnippet()); dialog.show(); return true; } } </code></pre> <p>Hope that helps!</p>
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    1. POAndroid emulator, Finding mock user location coordinates. Having problems
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