MarkerPointer class Null safety

Create the pointer to indicate the value with built-in shape.

To highlight values, set the marker pointer type to a built-in shape, such as a circle, text, image, triangle, inverted triangle, square, or diamond.

Widget build(BuildContext context) {
   return Container(
       child: SfRadialGauge(
         axes:<RadialAxis>[RadialAxis(
            pointers: <GaugePointer>[MarkerPointer(value: 50,
            )],
           )]
       ));
}
Inheritance
Implemented types

Constructors

MarkerPointer({Key? key, double value = 0, bool enableDragging = false, ValueChanged<double>? onValueChanged, ValueChanged<double>? onValueChangeStart, ValueChanged<double>? onValueChangeEnd, ValueChanged<ValueChangingArgs>? onValueChanging, AnimationType animationType = AnimationType.ease, bool enableAnimation = false, double animationDuration = 1000, MarkerType markerType = MarkerType.invertedTriangle, Color? color, double markerWidth = 10, double markerHeight = 10, double borderWidth = 0, double markerOffset = 0, String? text, Color? borderColor, GaugeSizeUnit offsetUnit = GaugeSizeUnit.logicalPixel, String? imageUrl, MarkerPointerRendererFactory<MarkerPointerRenderer>? onCreatePointerRenderer, GaugeTextStyle? textStyle, Color? overlayColor, double? overlayRadius, double elevation = 0})
Create a marker pointer with the default or required properties.
const

Properties

animationDuration double
Specifies the duration of the pointer animation.
final
animationType AnimationType
Specifies the different type of animation for pointer.
final
borderColor Color?
Specifies the border color for marker.
final
borderWidth double
Specifies the border width for marker.
final
color Color?
Specifies the color for marker pointer.
final
elevation double
Elevation of the pointer.
final
enableAnimation bool
Whether to enable the pointer animation.
final
enableDragging bool
Whether to allow the pointer dragging.
final
hashCode int
The hash code for this object.
@nonVirtualread-onlyinherited
imageUrl String?
Specifies the image Url path for marker pointer.
final
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
markerHeight double
Specifies the marker height in logical pixels.
final
markerOffset double
Adjusts the marker pointer position.
final
markerType MarkerType
Specifies the built-in shape type for pointer.
final
markerWidth double
Specifies the marker width in logical pixels.
final
offsetUnit GaugeSizeUnit
Calculates the marker position either in logical pixel or radius factor.
final
onCreatePointerRenderer MarkerPointerRendererFactory<MarkerPointerRenderer>?
The callback that is called when the custom renderer for the marker pointer is created. and it is not applicable for built-in marker pointer
final
onValueChanged ValueChanged<double>?
Called during a drag when the user is selecting a new value for the pointer by dragging.
final
onValueChangeEnd ValueChanged<double>?
Called when the user is done selecting a new value of the pointer by dragging.
final
onValueChangeStart ValueChanged<double>?
Called when the user starts selecting a new value of pointer by dragging.
final
onValueChanging ValueChanged<ValueChangingArgs>?
Called during a drag when the user is selecting before a new value for the pointer by dragging.
final
overlayColor Color?
Color of the overlay drawn around the marker pointer.
final
overlayRadius double?
Radius of the overlay drawn around the marker pointer.
final
runtimeType Type
A representation of the runtime type of the object.
read-onlyinherited
text String?
Specifies the text for marker pointer.
final
textStyle GaugeTextStyle
The style to use for the marker pointer text.
final
value double
Specifies the value to the pointer.
final

Methods

createElement() LeafRenderObjectElement
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
inherited
createRenderObject(BuildContext context) RenderObject
Creates an instance of the RenderObject class that this RenderObjectWidget represents, using the configuration described by this RenderObjectWidget.
override
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
@protectedinherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
didUnmountRenderObject(covariant RenderObject renderObject) → void
A render object previously associated with this widget has been removed from the tree. The given RenderObject will be of the same type as returned by this object's createRenderObject.
@protectedinherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent 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
updateRenderObject(BuildContext context, covariant RenderMarkerPointer renderObject) → void
Copies the configuration described by this RenderObjectWidget to the given RenderObject, which will be of the same type as returned by this object's createRenderObject.
override

Operators

operator ==(Object other) bool
The equality operator.
@nonVirtualinherited