ZoomChangedListener ?

Hi,
Is there any way to find out when the zoom of the map changed ?
I search something like a Listener.
I've tried following:

// The zoom before Click --> 10
Log.i("Zoom..: ",""+mapComponent.getZoom());

zoomControls.setOnZoomInClickListener(new View.OnClickListener()
{
public void onClick(final View v)
{
mapComponent.zoomIn();

// the zoom after zoomIn is still 10
Log.i("Zoom..: ",""+mapComponent.getZoom());
}

});

It seems, that "mapComponent.zoomIn();" isnt finish at this time and I got the old value of the zoom.

What can I do ?

I need all this because I would like to call a method when the zoom got change, but I got always the false value.