Question

I know how to add point to map.

private void addMarkertoMap() {

        LatLng MarkerPos = new LatLng (24.803751, 1.479969);

        googlemap.addMarker(new MarkerOptions()

        .icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_ROSE))
        .position(MarkerPos)
        );

But what if I have many points (hundreds) and I want to display them from GML or KML file? Is it posible in Google Maps Android API? Any help?

Thanks!

Answer 1

You could add just those markers that are currently visible on screen (though please note that you’ll want to keep track of those markers that you add on-screen so that you don’t add them over and over again. You may even want to remove those that are no longer visible)

mMap.setOnCameraChangeListener(new OnCameraChangeListener() {
   @Override
   public void onCameraChange(CameraPosition position) {
      final LatLngBounds screenBounds = mMapView.getProjection().getVisibleRegion().latLngBounds;
      for (YourPoint point : mPoints) {
         if (screenBounds.contains(point.getLatLng()) {
            mMapView.addMarker(point.getLatLng());
         }
      } 
   }
}