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Actionscript 3 with Google Maps API: How to make an interactive overlay

开发者 https://www.devze.com 2023-03-11 13:01 出处:网络
I have a Google Map in my Flash project with a polygon overlay. Is it possible to add to that overlay an EventListener so it triggers a function?

I have a Google Map in my Flash project with a polygon overlay.

Is it possible to add to that overlay an EventListener so it triggers a function?

All I can find in the API reference is something called "Map开发者_运维百科MouseEvent" but I can't figure out if that is what I need or how it works.


You can use MapMouseEvents from the Google Maps API.

Here an example using the polyline code from Google, and then adding an event listener for mouse clicks:


package
{
    import com.google.maps.LatLng;
    import com.google.maps.Map;
    import com.google.maps.MapEvent;
    import com.google.maps.MapMouseEvent;
    import com.google.maps.MapType;
    import com.google.maps.overlays.Polyline;
    import com.google.maps.overlays.PolylineOptions;
    import com.google.maps.styles.StrokeStyle;

    import flash.display.Sprite;
    import flash.geom.Point;

    public class Test extends Sprite
    {

        private var map:Map;

        public function Test()
        {
            map = new Map();
            map.key = "YOUR_API_KEY";
            map.sensor = "false";
            map.setSize(new Point(stage.stageWidth, stage.stageHeight));
            addChild(map);

            map.addEventListener(MapEvent.MAP_READY, mapReadyHandler);
        }

        public function mapReadyHandler(event:MapEvent):void
        {
            map.setCenter(new LatLng(37.4419, -122.1419), 13, MapType.NORMAL_MAP_TYPE);

            var polyline:Polyline = new Polyline([
                                                 new LatLng(37.4419, -122.1419),
                                                 new LatLng(37.4519, -122.1519)
                                                 ], new PolylineOptions({strokeStyle: new StrokeStyle({
                                                                                                          color: 0xFF0000,
                                                                                                          thickness: 4,
                                                                                                          alpha: 0.7})
                                                                        }));
            polyline.addEventListener(MapMouseEvent.CLICK, polylineClickHandler);
            map.addOverlay(polyline);
        }

        protected function polylineClickHandler(event:MapMouseEvent):void
        {
            trace("polyline clicked.");
        }

    }
}

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