Question

I am getting the MapView of current location by passing longitude and latitude parameters correctly. But i want to draw paint just like free hand (i.e names or lines and so..on) on that MapView image. from that i want total image of MapViewimage on that paint by user.
How can I do this?

when user send his path to another user like shown below…

Answer 1

Use an overlay. See this example Overlays

Here’s example code:

public class overlayGeoPoints  extends Overlay {

    private GeoPoint geoPoint;
    private int radius = 20;

    @Override
    public boolean onTap(GeoPoint geoPoint, MapView mapView){
          this.geoPoint = geoPoint;
    }

    @Override
    public void draw(Canvas canvas, MapView mapView, boolean shadow) {

        // put your logic here to draw on the overlay
        // ie draw a circle
        Projection projection = mapView.getProjection();
        Point point = new Point();
        projection.toPixels(geoPoint, point);

        int px = point.x;
        int py = point.y;
        Paint paint = new Paint(paintSecondary.ANTI_ALIAS_FLAG);
        hl.setColor(intColor);
        canvas.drawCircle(px, py, radius, paint);
        canvas.save();

    }
}

Just add this overlay to your map.

Edit

Here is a step by step (generic):

AFTER your map object (map) is created

// get a handle to the map overlays
List<Overlay> overlays = mapView.getOverlays();

// reset overlays as necessary
//overlays.clear();

// create your custom overly class
overlayGeoPoints olay = new overlayGeoPoints();

// append overlay to map overlays
overlays.add(olay);

// tell the map object to redraw
mapView.postInvalidate();