MapPolylineLayer class

A sublayer which renders group of MapPolyline on MapShapeLayer and MapTileLayer.

 late MapZoomPanBehavior _zoomPanBehavior;
 late List<MapLatLng> _polyLines;
 late MapShapeSource _mapSource;

  @override
  void initState() {
    _polyLines = <MapLatLng>[
      MapLatLng(13.0827, 80.2707),
      MapLatLng(14.4673, 78.8242),
      MapLatLng(14.9091, 78.0092),
      MapLatLng(16.2160, 77.3566),
      MapLatLng(17.1557, 76.8697),
      MapLatLng(18.0975, 75.4249),
      MapLatLng(18.5204, 73.8567),
      MapLatLng(19.0760, 72.8777),
    ];

    _mapSource = MapShapeSource.asset(
      'assets/india.json',
      shapeDataField: 'name',
    );

    _zoomPanBehavior = MapZoomPanBehavior(
        zoomLevel: 3, focalLatLng: MapLatLng(15.3173, 76.7139));
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('Polyline')),
      body: SfMaps(
        layers: [
          MapShapeLayer(
            source: _mapSource,
            sublayers: [
              MapPolylineLayer(
                polylines: List<MapPolyline>.generate(
                  1,
                  (int index) {
                    return MapPolyline(
                      points: _polyLines,
                    );
                  },
                ).toSet(),
              ),
            ],
            zoomPanBehavior: _zoomPanBehavior,
          ),
        ],
      ),
    );
  }

See also:

• MapLineLayer, for adding lines.
• MapArcLayer, for arcs.
• MapCircleLayer, for adding circles.
• MapPolygonLayer, for adding polygons.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• MapSublayer
• MapPolylineLayer

Constructors

MapPolylineLayer({Key? key, required Set<MapPolyline> polylines, Animation<double>? animation, Color? color, double width = 2, StrokeCap strokeCap = StrokeCap.butt, List<double> dashArray = const <double>[0, 0], IndexedWidgetBuilder? tooltipBuilder})

Creates the MapPolylineLayer.

const

Properties

animation → Animation<double>?

Animation for the polylines in MapPolylineLayer.

final

color → Color?

The color of all the polylines.

final

dashArray → List<double>

Apply same dash pattern for all the MapPolyline in the polylines collection.

final

hashCode → int

The hash code for this object.

no setter, inherited

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

polylines → Set<MapPolyline>

A collection of MapPolyline.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

strokeCap → StrokeCap

Applies stroke cap to the start and end of all polylines. You can set StrokeCap.round to get a semi-circle or StrokeCap.square to get a semi-square at the edges of the polyline.

final

tooltipBuilder → IndexedWidgetBuilder?

Returns a widget for the map line tooltip based on the index.

final, inherited

width → double

The width of all the polylines.

final

Methods

build(BuildContext context) → Widget

Describes the part of the user interface represented by this widget.

override

createElement() → StatelessElement

Creates a StatelessElement to manage this widget's location in the tree.

inherited

debugDescribeChildren() → List<DiagnosticsNode>

Returns a list of DiagnosticsNode objects describing this node's children.

inherited

debugFillProperties(DiagnosticPropertiesBuilder properties) → void

Add additional properties associated with the node.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode

Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.

inherited

toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String

A string representation of this object.

inherited

toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String

Returns a string representation of this node and its descendants.

inherited

toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String

Returns a one-line detailed description of the object.

inherited

toStringShort() → String

A short, textual description of this widget.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited