MapCircleLayer class
A sublayer which renders group of MapCircle on MapShapeLayer and MapTileLayer.
late List<MapLatLng> _circles;
late MapShapeSource _mapSource;
@override
void initState() {
_circles = const <MapLatLng>[
MapLatLng(-14.235004, -51.92528),
MapLatLng(51.16569, 10.451526),
MapLatLng(-25.274398, 133.775136),
MapLatLng(20.593684, 78.96288),
MapLatLng(61.52401, 105.318756)
];
_mapSource = MapShapeSource.asset(
'assets/world_map.json',
shapeDataField: 'name',
);
super.initState();
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: Container(
height: 350,
child: Padding(
padding: EdgeInsets.only(left: 15, right: 15),
child: SfMaps(
layers: <MapLayer>[
MapShapeLayer(
source: _mapSource,
sublayers: [
MapCircleLayer(
circles: List<MapCircle>.generate(
_circles.length,
(int index) {
return MapCircle(
center: _circles[index],
);
},
).toSet(),
),
],
),
],
),
),
)),
);
}
See also:
* `MapCircleLayer.inverted()` named constructor, for inverted color support.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- MapSublayer
- MapCircleLayer
Constructors
-
MapCircleLayer({Key? key, required Set<
MapCircle> circles, Animation<double> ? animation, Color? color, double strokeWidth = 1, Color? strokeColor, IndexedWidgetBuilder? tooltipBuilder}) -
Creates the MapCircleLayer.
const
-
MapCircleLayer.inverted({Key? key, required Set<
MapCircle> circles, Animation<double> ? animation, double strokeWidth = 1, Color? color, Color? strokeColor, IndexedWidgetBuilder? tooltipBuilder}) -
You may highlight a specific area on a map to make it more readable by
using the
circles
property of MapCircleLayer.inverted by adding mask to the outer region of the highlighted circles.const
Properties
-
animation
→ Animation<
double> ? -
Animation for the circles in MapCircleLayer.
final
-
circles
→ Set<
MapCircle> -
A collection of MapCircle.
final
- color → Color?
-
The fill color of all the MapCircle.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- strokeColor → Color?
-
The stroke color of all the MapCircle.
final
- strokeWidth → double
-
The stroke width of all the MapCircle.
final
- tooltipBuilder → IndexedWidgetBuilder?
-
Returns a widget for the map line tooltip based on the index.
finalinherited
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