updateTileOverlays method

@override Future<void> updateTileOverlays({ required Set<TileOverlay> newTileOverlays, required int mapId, })

Updates tile overlay configuration.

Change listeners are notified once the update has been made on the platform side.

The returned Future completes after listeners have been notified.

Implementation

@override
Future<void> updateTileOverlays({
  required Set<TileOverlay> newTileOverlays,
  required int mapId,
}) {
  final Map<TileOverlayId, TileOverlay>? currentTileOverlays =
      _tileOverlays[mapId];
  final Set<TileOverlay> previousSet =
      currentTileOverlays != null
          ? currentTileOverlays.values.toSet()
          : <TileOverlay>{};
  final TileOverlayUpdates updates = TileOverlayUpdates.from(
    previousSet,
    newTileOverlays,
  );
  _tileOverlays[mapId] = keyTileOverlayId(newTileOverlays);
  return channel(
    mapId,
  ).invokeMethod<void>('tileOverlays#update', updates.toJson());
}