GaugeRange class

Create the range to add a color bar in the gauge.

GaugeRange is a visual element that helps to quickly visualize where a value falls on the axis. The text can be easily annotated in range to improve the readability.

Widget build(BuildContext context) {
   return Container(
       child: SfRadialGauge(
         axes:<RadialAxis>[RadialAxis(
         ranges: <GaugeRange>[GaugeRange(startValue: 50,
         endValue: 100)],
           )]
       ));
}

Inheritance

• Object
• DiagnosticableTree
• Widget
• RenderObjectWidget
• LeafRenderObjectWidget
• GaugeRange

Constructors

GaugeRange.new({Key? key, required double startValue, required double endValue, double? startWidth, double? endWidth, GaugeSizeUnit sizeUnit = GaugeSizeUnit.logicalPixel, Color? color, Gradient? gradient, double rangeOffset = 0, String? label, GaugeTextStyle? labelStyle})

Create a range with the default or required properties.

Properties

color → Color?

Specifies the range color.

final

endValue → double

Specifies the range end value.

final

endWidth → double?

Specifies the range end width.

final

gradient → Gradient?

A gradient to use when filling the range.

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

label → String?

Specifies the text for range.

final

labelStyle → GaugeTextStyle

The style to use for the range label text.

final

rangeOffset → double

Adjusts the range position in gauge.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

sizeUnit → GaugeSizeUnit

Calculates the range position and size either in logical pixel or radius factor.

final

startValue → double

Specifies the range start value.

final

startWidth → double?

Specifies the range start 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.

inherited

debugFillProperties(DiagnosticPropertiesBuilder properties) → void

Add additional properties associated with the node.

inherited

didUnmountRenderObject(covariant RenderObject renderObject) → void

This method is called when a RenderObject that was previously associated with this widget is removed from the render tree. The provided RenderObject will be of the same type as the one created by this widget's createRenderObject method.

inherited

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, int wrapWidth = 65}) → 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 RenderGaugeRange 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.

inherited