I'm trying to manage my memory in a flex application.
I have a tree with a map in each of several nodes. The maps are
initiated within their own canvas as a UIComponent.
<gm:GoogleMaps id="googlemapbrowse"
initialize="{googlemapbrowse.startMap(event)}"
resize="{googlemapbrowse.resizeMap(event)}"
width="100%" height="80%"
x = "0" y="20"
/>
Where the GoogleMaps class is an extension of the UIComponent.
public class GoogleMaps extends UIComponent
{
public function startMap(event:Event):void {
map = new Map(); map.key=
"ABQIAAAA_8ut_QO3UD07y6Ch_GqXLRT2yXp_ZAY8_ufC3CFXhHIE1NvwkxTzkWT4H53MxSvbUk62bf1yl62ypg";
map.addEventListener(MapEvent.MAP_READY, onMapReady);
this.addChild(map);
}
public function resizeMap(event:Event):void {
map.setSize(new Point(this.width, this.height));
}
private function onMapReady(event:Event):void {
map.enableScrollWheelZoom();
map.enableContinuousZoom();
map.addControl(overview);
overview.setSize(new Point(165,165));
overview.setControlPosition(new
ControlPosition(ControlPosition.ANCHOR_BOTTOM_RIGHT,2,2));
map.setCenter(new LatLng(-33.87205, 151.203874),14,
MapType.NORMAL_MAP_TYPE);
map.setCenter(new LatLng(-33.87205, 151.203874));
map.setZoom(14);
map.addControl(zoomcontrol) ;
map.closeInfoWindow();
}
When I do this, I'm getting the horizontal bar on my vertical zoom
control duplicating. When I zoom in and out I get two bars only one
of which can be moved to change the zoom. This is really odd. When I
fire my application up it reliably has duplicate bars the first time.
When I shut down firefox and clear the cache then open it has only one
bar. If I shut down and start again it has two. This alternates when
I shut down and clear.
My other problem is due to memory management. I'm setting the map to
null. Using actionscript at somepoint.
E.g.
this.googlemapbrowse = null.
I'm later re-instantiating.
e.g.
googlemapbrowse = new GoogleMap();
googlemapbrowse.startMap(event);
googlemapbrowse.resizeMap(event);
Unfortunatly this doesn't work and I get a null pointer error when I
fire off the geocode in this map.
Any ideas?
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