Reputation: 65
i've this problem with MapView inside my layout:
once added it shows buttons, google logo, the grid but no map. To make it visible i've to turn the screen off and then on. What's the problem?
Here my code
mapView = (MapView) geo.findViewById(R.id.map_view);
mapView.onCreate(savedInstanceState);
mapView.getMapAsync(this);
final LocationManager lm = (LocationManager)getActivity().getSystemService(Context.LOCATION_SERVICE);
lastKnownLocation = lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if(lastKnownLocation == null) {
askLocationRefreshInitMapView(lm);
} else {
if((System.currentTimeMillis() - lastKnownLocation.getTime()) > THIRTY_MINUTES) {
askLocationRefreshInitMapView(lm);
} else {
initMapView(lastKnownLocation);
}
}
private void initMapView(final Location location) {
lastKnownLocation = location;
// Gets to GoogleMap from the MapView and does initialization stuff
mapView.getMapAsync(new OnMapReadyCallback() {
@Override
public void onMapReady(GoogleMap map) {
map.getUiSettings().setMyLocationButtonEnabled(false);
map.setMyLocationEnabled(true);
// Needs to call MapsInitializer before doing any CameraUpdateFactory calls
try {
MapsInitializer.initialize(getActivity());
} catch (Exception e) {
e.printStackTrace();
}
// Updates the location and zoom of the MapView
if(location != null) {
CameraUpdate cameraUpdate = CameraUpdateFactory.newLatLngZoom(new LatLng(location.getLatitude(), location.getLongitude()), 10);
map.moveCamera(cameraUpdate);
map.animateCamera(cameraUpdate);
}
map.addMarker(new MarkerOptions().position(new LatLng(0, 0)).title("Marker"));
}
});
}
Upvotes: 0
Views: 166
Reputation: 65
I solved initializing the map during onCreateView and then adding it on UserInteraction requests
Upvotes: 2
Reputation: 316
Implement 'OnMapReadyCallback' to your activity or what ever you're using then in your onMapready method
@Override
public void onMapReady(GoogleMap googleMap) {
MapsInitializer.initialize(context);
gMap=googleMap;
if (mapView != null) {
// Initialise the MapView
mapView.onCreate(null);
// Set the map ready callback to receive the GoogleMap object
mapView.getMapAsync(this);
}
}
Upvotes: 0