Question

I have a mapview in my application. And I have to show more than 1,000 overlays on a map.
And I have a list which is containing these places. So, do I have to create 1,000 overlay objects by iterating over the items in the list? And can anyone give me an efficient way to do this?

Answer 1

The way the Sanket is doing it the points are populated after every single point is added, this tends to lag out. A more effiecent way can be done like this:

What is happening is that you are populating the MapView everytime you add a GeoPoint. Try adding this to your code:

after you have looped through the GeoPoints place this code

itemizedOverlay.populateNow();

and change you itemizedOverlay to look like this:

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

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

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