title: mapView showing white screen
body: <p>I want to show route between 2 geopoint in my mapview, but when I run, it alwasy show a white screen on my mapview. I use the example in this <a href="https://stackoverflow.com/questions/11745314/why-retrieving-google-directions-for-android-using-kml-data-is-not-working-anymo">link</a> for my reference </p>
  
  <p>here's my MapActivity class :</p>
  
  <pre><code>public class M_hospital_map extends MapActivity {
  
   // Map view
   MapView mapView = null;
  
   GeoPoint geoPoint;
   GeoPoint dest_geoPoint;
  
   // Progress dialog
   ProgressDialog pDialog;
  
   // Map controllers
   MapController mapController;
  
   GeoPoint start, dest;
  
   double latitude;
   double longitude;
   double dest_latitude;
   double dest_longitude;
  
   OverlayItem overlayitem;
  
   @Override
   protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.m_hospital_map);
  
      // Getting intent data
      Intent i = getIntent();
  
      Bundle bundle = i.getExtras();
  
      // get all data from bundle
      double user_latitude = bundle.getDouble("user_latitude");
      double user_longitude = bundle.getDouble("user_longitude");
      double dest_latitude = bundle.getDouble("dest_latitude");
      double dest_longitude = bundle.getDouble("dest_longitude");
  
  
      mapView = (MapView) findViewById(R.id.mapView); 
      mapView.setBuiltInZoomControls(true);
  
  
  
      DirectionsTask getDirectionsTask = new DirectionsTask();
      getDirectionsTask.execute(new GeoPoint((int)(user_latitude * 1E6),(int)(user_longitude * 1E6)),
                    new GeoPoint((int)(dest_latitude * 1E6),(int)(dest_longitude * 1E6)));
  
   }
  
   private class DirectionsTask extends AsyncTask&lt;GeoPoint, Void, Route&gt; {
  
      protected void onPreExecute() {
          super.onPreExecute();
          pDialog = new ProgressDialog(M_hospital_map.this);
          pDialog.setMessage(Html.fromHtml("&lt;b&gt;Google Map&lt;/b&gt;&lt;br/&gt;Loading Route..."));
          pDialog.setIndeterminate(false);
          pDialog.setCancelable(false);
          pDialog.show();
      }
  
          protected Route doInBackground(GeoPoint...geoPoints) {
              start = geoPoints[0];
              dest =  geoPoints[1];
  
                  Parser parser;
                  String jsonURL = "http://maps.google.com/maps/api/directions/json?";
                  final StringBuffer sBuf = new StringBuffer(jsonURL);
                  sBuf.append("origin=");
                  sBuf.append(start.getLatitudeE6()/1E6);
                  sBuf.append(',');
                  sBuf.append(start.getLongitudeE6()/1E6);
                  sBuf.append("&amp;destination=");
                  sBuf.append(dest.getLatitudeE6()/1E6);
                  sBuf.append(',');
                  sBuf.append(dest.getLongitudeE6()/1E6);
                  sBuf.append("&amp;sensor=true&amp;mode=driving");
                  Log.v("URL", sBuf.toString());
  
                  parser = new GoogleParser(sBuf.toString());
                  Route r =  parser.parse();
                  return r;
          }
  
      protected void onPostExecute(Route route) {
          pDialog.dismiss();
          RouteOverlay routeOverlay = new RouteOverlay(route, Color.BLUE);
          mapView.getOverlays().add(routeOverlay);
          mapView.invalidate();
          mapController = mapView.getController();
          mapController.setZoom(16);
          mapView.getMapCenter();
      }
   }
  
   @Override
   protected boolean isRouteDisplayed() {
      // TODO Auto-generated method stub
      return false;
   }
  }
  </code></pre>
  
  <p>And my m_hospital_map.xml goes like this:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;com.google.android.maps.MapView
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:id="@+id/mapView"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"
      android:clickable="true"
      android:apiKey="0WM32EymVRmIVGz-fKJhPs2BT_sH1CZtV3QG54w"
  /&gt;
  </code></pre>
  
  <p>And I already use INTERNET, ACCESS_FINE_LOCATION, ACCESS_COARSE_LOCATION permission. Can u guys pls help me, tell me what's wrong with these code above.</p>