mapview and cameraupdate in api v2 - android-mapview

Question

Why the CameraUpdateFactory class is not working in my project?
The app crashes if it executes the following command:
CameraUpdate pino= CameraUpdateFactory.newLatLng(new LatLng(location.getLatitude(), location.getLongitude()));
If i remove that line (and of course the next one), the code successfully starts and shows the map.
I need the mapView and i need to use the new api v2.
I declare the mapView in layout in this way:
<com.google.android.gms.maps.MapView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
android:id="#+id/mappa"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_below="#+id/buttonBar"
map:uiZoomControls="false"
/>
then in mainActivity.java i wrote this:
public class MainActivity extends FragmentActivity implements LocationListener, LocationSource {
public static boolean locatingMe=true;
public GoogleMap mappa;
public MapView mapView;
private OnLocationChangedListener onLocationChangedListener;
private LocationManager locationManager;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mapView = (MapView) findViewById(R.id.mappa);
mapView.onCreate(savedInstanceState);
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
//You may want to pass a different provider in as the first arg here
//depending on the location accuracy that you desire
//see LocationManager.getBestProvider()
Criteria locationCriteria = new Criteria();
locationCriteria.setAccuracy(Criteria.NO_REQUIREMENT);
locationManager.requestLocationUpdates(locationManager.getBestProvider(locationCriteria, true), 1L, 2F, this);
if (mappa == null) {
mappa=mapView.getMap();
//This is how you register the LocationSource
mappa.setLocationSource(this);
mappa.getUiSettings().setMyLocationButtonEnabled(false);
mappa.setMyLocationEnabled(true);
}
}
#Override
public void onPause()
{
if(locationManager != null)
{
locationManager.removeUpdates(this);
}
mapView.onPause();
super.onPause();
}
#Override
public void onResume()
{
checkGooglePlayServicesAvailability();
checkGps();
mapView.onResume();
super.onResume();
}
#Override
protected void onDestroy() {
mapView.onDestroy();
super.onDestroy();
}
#Override
public void onLowMemory() {
super.onLowMemory();
mapView.onLowMemory();
}
#Override
public void activate(OnLocationChangedListener listener)
{
onLocationChangedListener = listener;
}
#Override
public void deactivate()
{
onLocationChangedListener = null;
}
#Override
public void onLocationChanged(Location location)
{
if( onLocationChangedListener != null )
{
onLocationChangedListener.onLocationChanged( location );
//Move the camera to the user's location once it's available!
//only if locatingMe is true
if (locatingMe) {
if (mappa!=null){
CameraUpdate pino= CameraUpdateFactory.newLatLng(new LatLng(location.getLatitude(), location.getLongitude()));
mappa.animateCamera(pino);
}
}
}
}
#Override
public void onProviderDisabled(String provider)
{
// TODO Auto-generated method stub
Toast.makeText(this, "provider disabled", Toast.LENGTH_SHORT).show();
}
#Override
public void onProviderEnabled(String provider)
{
// TODO Auto-generated method stub
Toast.makeText(this, "provider enabled", Toast.LENGTH_SHORT).show();
}
#Override
public void onStatusChanged(String provider, int status, Bundle extras)
{
// TODO Auto-generated method stub
Toast.makeText(this, "status changed", Toast.LENGTH_SHORT).show();
}
The error in the LogCat is the following:
Caused by: java.lang.NullPointerException: CameraUpdateFactory is not initialized.

Answer 1

I solved the problem by adding on the "onCreate" the following lines:
try {
MapsInitializer.initialize(this);
} catch (GooglePlayServicesNotAvailableException e) {
e.printStackTrace();
}
the reason is that the CameraUpdateFactory needs to be initilized (even if from documentation it seems that using mapview it shoud be automatically initialized)
I even replaced "public class MainActivity extends FragmentActivity" with "public class MainActivity extends Activity". But i think that this last thing it was not needed..

Answer 2

if i use:
try {
MapsInitializer.initialize(this);
} catch (GooglePlayServicesNotAvailableException e) {
e.printStackTrace();
}
The exception give me this error:
Unreachable catch block for GooglePlayServicesNotAvailableException.
This exception is never thrown from the try statement body".
I have use only:
MapsInitializer.initialize(this);
:)