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 updates = _TileOverlayUpdates.from(previousSet, newTileOverlays);
  _tileOverlays[mapId] = keyTileOverlayId(newTileOverlays);
  return _hostApi(mapId).updateTileOverlays(
    updates.tileOverlaysToAdd
        .map(_platformTileOverlayFromTileOverlay)
        .toList(),
    updates.tileOverlaysToChange
        .map(_platformTileOverlayFromTileOverlay)
        .toList(),
    updates.tileOverlayIdsToRemove
        .map((TileOverlayId id) => id.value)
        .toList(),
  );
}