Question

When I zoom in/zoom out from time to time in my map activity I get in console an “OutOfMemory error:bitmap size exceeds VM budget”. The app doesn’t crash on my developement phone, but I’m not sure If this issue won’t cause a problem in future.

Note: I display maximum 30 custom markers on map.

The error stack doesn’t reference my code. Does anyone have a fix or a best practice to get rid of this error?

Thanks in advance.

public void onCreate(Bundle savedInstanceState) { 
...
marker = getResources().getDrawable(R.drawable.marker);
...
fillData();
}
public void fillData() {
...
  for (int i = 0; i < lats.length; i++) {
    ...
    map.getOverlays().add(new ContactOverlay(marker, tempLat, tempLon, names[i],
                phones[i]));
   }
}

private class ContactOverlay extends ItemizedOverlay<OverlayItem> {
    private List<OverlayItem> items = new ArrayList<OverlayItem>();

    public ContactOverlay(Drawable marker, double latitude,
            double longitude, String title, String snippet) {
        super(marker);
        boundCenterBottom(marker); 
        items.add(new OverlayItem(getPoint(longitude, latitude), title,
                snippet)); 
        populate();
    }

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

Answer 1

Try to reuse the bitmap and the canvas where you draw. Each time when you redraw the overlay, a new bitmap is allocated.