How to implement Drop pin animation in android using google maps?

Question

I want to implement dropping pins animation to markers as the one in iPhone. The problem is pins are not dropping the way they should as they are in this link : http://googlege

Answer 1

I am posting the core concept that is working to have the drop pin animation in mapView as that of iPhopne. Same can be integrated with overlays also....

Drawable drawableImage = this.getResources().getDrawable(R.drawable.marker);
myCustomOverlay = new CustomOverlay(drawableImage, mapView);
initGeoPoint = new GeoPoint((int) (latitudeArray[i] * 1E6),(int) (longitudeArray[i] * 1E6));
OverlayItem overlayItem = new OverlayItem(initGeoPoint,getLocationAddress(latitudeArray[i], longitudeArray[i]),"xyz");

myCustomOverlay.addOverlay(overlayItem);
mapOverlays.add(myCustomOverlay);

RelativeLayout v = (RelativeLayout) View.inflate(getApplicationContext(),R.layout.marker_layout, null);
ImageView markerView = (ImageView) v.findViewById(R.id.marker_img_view);
AnimationSet animation = new AnimationSet(true);

TranslateAnimation translateAnimation = new TranslateAnimation(0.0f, 0.0f, -400.0f, 0.0f);
translateAnimation.setDuration(1000);
animation.addAnimation(translateAnimation);

markerView.startAnimation(animation);

mapView.addView(v, 
      new MapView.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT,ViewGroup.LayoutParams.FILL_PARENT), 
      new GeoPoint((int) (latitude * 1E6),(int) (longitude * 1E6)),
      MapView.LayoutParams.BOTTOM_CENTER));

mapView.invalidate();

marker_layout is as folows:

Overlay Class ###########

public class CustomOverlay extends BalloonItemizedOverlay {

    private ArrayList m_overlays = new ArrayList();
    private Context c;

    public CustomOverlay(Drawable defaultMarker, MapView mapView) {
        super(boundCenter(defaultMarker), mapView);
        c = mapView.getContext();
    }

    public void addOverlay(OverlayItem overlay) {
        m_overlays.add(overlay);
        populate();
    }

    @Override
    public void draw(Canvas canvas, MapView mapView, boolean shadow) {
        if (!shadow) {
            super.draw(canvas, mapView, false);
        }
    }

    public void removeOverlay(OverlayItem overlay) {
        m_overlays.remove(overlay);
        populate();
    }

    @Override
    protected OverlayItem createItem(int i) {
        return m_overlays.get(i);
    }

    @Override
    public int size() {
        return m_overlays.size();
    }

    @Override
    protected boolean onBalloonTap(int index, OverlayItem item) {
        Toast.makeText(
                c,
                "onBalloonTap for overlay index " + index + " Item"
                        + item.getTitle(), Toast.LENGTH_LONG).show();

        String id = "";

        return true;
    }
}