On Thu, Nov 11, 2010 at 12:06 PM, ZQ <zhiqiang....@gmail.com> wrote:
> Hi TreKing,
>
> Thank you for replying. I tried drawing a marker on the map with the
> code below, but i can't get it to draw anything when i click on the
> map. Could u advice me? Thank you
>
> @Override
> public boolean onTouchEvent(MotionEvent event, MapView
> mapView)
> {
> mapOverlays = mapView.getOverlays();
> drawable =
> getResources().getDrawable(R.drawable.androidmarker);
> HelloItemizedOverlay itemizedoverlay = new
> HelloItemizedOverlay(drawable);
>
> //---when user lifts his finger---
> if (event.getAction() == 1) {
> GeoPoint p =
> mapView.getProjection().fromPixels(
> (int) event.getX(),
> (int) event.getY());
>
> GeoPoint point3 = new
> GeoPoint(p.getLatitudeE6(),
> p.getLongitudeE6());
> OverlayItem overlayitem3 = new
> OverlayItem(point3, "", "");
> itemizedoverlay.addOverlay(overlayitem3);
> }
> return false;
> }
>
A) Please respond to the whole group.
B) Try invalidating the mapview.
-------------------------------------------------------------------------------------------------
TreKing <http://sites.google.com/site/rezmobileapps/treking> - Chicago
transit tracking app for Android-powered devices
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