RangePointer class Null safety

Create the pointer to indicate the value with rounded range bar arc.

A RangePointer is used to indicate the current value relative to the start value of a axis scale.

Widget build(BuildContext context) {
   return Container(
       child: SfRadialGauge(
         axes:<RadialAxis>[RadialAxis(
            pointers: <GaugePointer>[RangePointer( value: 20)],
           )]
       ));
}
Inheritance
Implemented types

Constructors

RangePointer({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, CornerStyle cornerStyle = CornerStyle.bothFlat, Gradient? gradient, double pointerOffset = 0, GaugeSizeUnit sizeUnit = GaugeSizeUnit.logicalPixel, double width = 10, List<double>? dashArray, Color? color})
Create a range 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
color Color?
Specifies the range pointer color.
final
cornerStyle CornerStyle
The style to use for the range pointer corner edge.
final
dashArray List<double>?
Specifies the dash array to draw the dashed line.
final
enableAnimation bool
Whether to enable the pointer animation.
final
enableDragging bool
Whether to allow the pointer dragging.
final
gradient Gradient?
A gradient to use when filling the range pointer.
final
hashCode int
The hash code for this object.
@nonVirtualread-onlyinherited
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
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
pointerOffset double
Adjusts the range pointer position.
final
runtimeType Type
A representation of the runtime type of the object.
read-onlyinherited
sizeUnit GaugeSizeUnit
Calculates the position and size for pointer either in logical pixel or radius factor.
final
value double
Specifies the value to the pointer.
final
width double
Specifies the range pointer width.
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 RenderRangePointer 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