addLayer method

Future<void> addLayer(String sourceId, String layerId, LayerProperties properties, { String? belowLayerId, bool enableInteraction = true, String? sourceLayer, double? minzoom, double? maxzoom, dynamic filter, })

Add a layer to the map with the given properties

The returned Future completes after the change has been made on the platform side.

Setting belowLayerId adds the new layer below the given id. If enableInteraction is set the layer is considered for touch or drag events this has no effect for RasterLayerProperties and HillshadeLayerProperties. sourceLayer is used to selected a specific source layer from Vector source. minzoom is the minimum (inclusive) zoom level at which the layer is visible. maxzoom is the maximum (exclusive) zoom level at which the layer is visible. filter determines which features should be rendered in the layer. Filters are written as expressions. filter is not supported by RasterLayer and HillshadeLayer.

Implementation

Future<void> addLayer(
    String sourceId, String layerId, LayerProperties properties,
    {String? belowLayerId,
    bool enableInteraction = true,
    String? sourceLayer,
    double? minzoom,
    double? maxzoom,
    dynamic filter}) async {
  if (properties is FillLayerProperties) {
    addFillLayer(sourceId, layerId, properties,
        belowLayerId: belowLayerId,
        enableInteraction: enableInteraction,
        sourceLayer: sourceLayer,
        minzoom: minzoom,
        maxzoom: maxzoom,
        filter: filter);
  } else if (properties is FillExtrusionLayerProperties) {
    addFillExtrusionLayer(sourceId, layerId, properties,
        belowLayerId: belowLayerId,
        sourceLayer: sourceLayer,
        minzoom: minzoom,
        maxzoom: maxzoom);
  } else if (properties is LineLayerProperties) {
    addLineLayer(sourceId, layerId, properties,
        belowLayerId: belowLayerId,
        enableInteraction: enableInteraction,
        sourceLayer: sourceLayer,
        minzoom: minzoom,
        maxzoom: maxzoom,
        filter: filter);
  } else if (properties is SymbolLayerProperties) {
    addSymbolLayer(sourceId, layerId, properties,
        belowLayerId: belowLayerId,
        enableInteraction: enableInteraction,
        sourceLayer: sourceLayer,
        minzoom: minzoom,
        maxzoom: maxzoom,
        filter: filter);
  } else if (properties is CircleLayerProperties) {
    addCircleLayer(sourceId, layerId, properties,
        belowLayerId: belowLayerId,
        enableInteraction: enableInteraction,
        sourceLayer: sourceLayer,
        minzoom: minzoom,
        maxzoom: maxzoom,
        filter: filter);
  } else if (properties is RasterLayerProperties) {
    if (filter != null) {
      throw UnimplementedError("RasterLayer does not support filter");
    }
    addRasterLayer(sourceId, layerId, properties,
        belowLayerId: belowLayerId,
        sourceLayer: sourceLayer,
        minzoom: minzoom,
        maxzoom: maxzoom);
  } else if (properties is HillshadeLayerProperties) {
    if (filter != null) {
      throw UnimplementedError("HillShadeLayer does not support filter");
    }
    addHillshadeLayer(sourceId, layerId, properties,
        belowLayerId: belowLayerId,
        sourceLayer: sourceLayer,
        minzoom: minzoom,
        maxzoom: maxzoom);
  } else if (properties is HeatmapLayerProperties) {
    addHeatmapLayer(sourceId, layerId, properties,
        belowLayerId: belowLayerId,
        sourceLayer: sourceLayer,
        minzoom: minzoom,
        maxzoom: maxzoom);
  } else {
    throw UnimplementedError("Unknown layer type $properties");
  }
}