OverviewMap is a small, secondary map view (sometimes called an “inset map”), superimposed on an existing ArcGISMapView or ArcGISSceneView, which shows a representation of the current visible area (for an ArcGISMapView) or viewpoint (for an ArcGISSceneView).

Overview

For an OverviewMap on an ArcGISMapView, the map view's visibleArea property will be represented in the overview map as a polygon, which will rotate as the map view rotates. For an OverviewMap on an ArcGISSceneView, the center point of the scene view's currentViewpoint property will be represented in the overview map by a point.

Features

• Displays a representation of the current visible area or viewpoint for a connected map view or scene view, respectively.
• Supports a configurable scaling factor for setting the overview map’s zoom level relative to the connected view.
• Supports a configurable symbol for visualizing the current visible area or viewpoint representation (a SimpleFillSymbol for a connected map view; a SimpleMarkerSymbol for a connected scene view).
• Supports using a custom map in the overview map display.

Note: OverviewMap uses metered ArcGIS Location Platform basemaps by default, so you will need to implement authentication using a supported method. See Security and authentication documentation for more information.

Usage

An OverviewMap is generally placed in a Stack on top of an ArcGISMapView or ArcGISSceneView. The overview map must be provided the same ArcGISMapViewController or ArcGISSceneViewController as the corresponding map view or scene view.

 @override
 Widget build(BuildContext context) {
   return Scaffold(
     body: Stack(
       children: [
         ArcGISMapView(controllerProvider: controllerProvider),
         OverviewMap.withMapView(controllerProvider: controllerProvider),
       ],
     ),
   );
 }