GaugeRange class Null safety

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

Constructors

GaugeRange({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. [...]
@nonVirtual, read-only, 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.
read-only, 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. [...]
@protected, inherited
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.
@protected, inherited
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 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. [...]
@nonVirtual, inherited