Android Google Maps API v2 - how to change marker icon

Question

I am trying to change marker icon. I get the image from one server directory.

When I put break point every time the "bit" result is null. And when I run the app I get java.lang.NullPointerException.

File file = new File("J:\\!!! DOCUMENTS\\!Outsourcing\\AppStore\\Benzinostancii\\Petrol\\logo.png");

Bitmap bit = BitmapFactory.decodeFile(String.valueOf(file));

double Dlat = lat.get(index);
double Dlon = lon.get(index);
String info = Arrayinfo.get(index);
String name = Arrayname.get(index);

LatLng coordinate = new LatLng(Dlat, Dlon);
map.addMarker(new MarkerOptions()
    .icon(BitmapDescriptorFactory.fromBitmap(bit))
    .position(coordinate)
    .title(info)
).setSnippet(name);

Answer 1

// latitude and longitude
double latitude = 17.385044;
double longitude = 78.486671;

// create marker
MarkerOptions marker = new MarkerOptions().position(new LatLng(latitude, longitude)).title("Hello Maps");

// Changing marker icon
marker.setIcon(BitmapDescriptorFactory.fromResource(R.drawable.my_marker_icon)));

// adding marker
googleMap.addMarker(marker);

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