SfLinearGauge class

Creates a linear gauge widget to displays the values on a linear scale. It has a rich set of features such as axis, ranges, and pointers that are fully customizable and extendable.

Widget build(BuildContext context) {
   return Container(
       child: SfLinearGauge());
}
Inheritance

Constructors

SfLinearGauge({Key? key, double minimum = 0.0, double maximum = 100.0, double? interval, List<LinearGaugeRange>? ranges, List<LinearBarPointer>? barPointers, List<LinearMarkerPointer>? markerPointers, LinearGaugeOrientation orientation = LinearGaugeOrientation.horizontal, bool isAxisInversed = false, bool isMirrored = false, bool animateAxis = false, bool animateRange = false, int animationDuration = 1000, bool showLabels = true, bool showAxisTrack = true, bool showTicks = true, int minorTicksPerInterval = 1, bool useRangeColorForAxis = false, double axisTrackExtent = 0, LinearLabelPosition labelPosition = LinearLabelPosition.inside, LinearElementPosition tickPosition = LinearElementPosition.inside, double tickOffset = 0, double labelOffset = 4, int maximumLabels = 3, NumberFormat? numberFormat, GenerateLabelsCallback? onGenerateLabels, ValueToFactorCallback? valueToFactorCallback, FactorToValueCallback? factorToValueCallback, LabelFormatterCallback? labelFormatterCallback, TextStyle? axisLabelStyle, LinearAxisTrackStyle? axisTrackStyle, LinearTickStyle? majorTickStyle, LinearTickStyle? minorTickStyle})
Creates a linear gauge

Properties

animateAxis → bool
Specifies the animation for axis.
final
animateRange → bool
Specifies the animation for range.
final
animationDuration → int
Specifies the load time animation duration. Duration is defined in milliseconds.
final
axisLabelStyle → TextStyle?
Specifies the label style of axis.
final
axisTrackExtent → double
Extends the axis on  both ends with the specified value.
final
axisTrackStyle → LinearAxisTrackStyle
Customizes the style of the axis line.
final
barPointers → List<LinearBarPointer>?
Customizes each bar pointer by adding it to the barPointers collection.
final
factorToValueCallback → FactorToValueCallback?
Returns the converted axis value from the factor.
final
hashCode → int
The hash code for this object.
no setterinherited
interval → double?
Specifies the interval between major ticks in an axis.
final
isAxisInversed → bool
Determines whether to inverse an axis in a SfLinearGauge.
final
isMirrored → bool
Determines whether to mirror the linear gauge.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
labelFormatterCallback → LabelFormatterCallback?
Called when the labels are been generated.
final
labelOffset → double
Specifies the offset value of labels to custom-position them.
final
labelPosition → LinearLabelPosition
Specifies the position of labels with respect to an axis.
final
majorTickStyle → LinearTickStyle
The style to use for the major axis tick lines.
final
markerPointers → List<LinearMarkerPointer>?
Add a list of gauge shape and widget pointer to the linear gauge and customize each pointer by adding it to the markerPointers collection.
final
maximum → double
Specifies the maximum value of an axis. The axis ends at this value.
final
maximumLabels → int
The maximum number of labels to be displayed in 100 logical pixels.
final
minimum → double
Specifies the minimum value of an axis. The axis starts with this value.
final
minorTicksPerInterval → int
Specifies the minor ticks count per interval in an axis.
final
minorTickStyle → LinearTickStyle
The style to use for the minor axis tick lines.
final
numberFormat → NumberFormat
Specifies the number format.
final
onGenerateLabels → GenerateLabelsCallback?
Returns the visible labels on SfLinearGauge
final
orientation → LinearGaugeOrientation
Specifies the orientation of SfLinearGauge.
final
ranges → List<LinearGaugeRange>?
Customizes each range by adding it to the ranges collection.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
showAxisTrack → bool
Determines whether to show an axis track in SfLinearGauge.
final
showLabels → bool
Determines whether to show the labels in an axis.
final
showTicks → bool
Determines whether to show ticks.
final
tickOffset → double
Specifies the offset value of ticks to custom-position them.
final
tickPosition → LinearElementPosition
Specifies the position of ticks with respect to axis.
final
useRangeColorForAxis → bool
Determines whether to use range color for an axis in SfLinearGauge.
final
valueToFactorCallback → ValueToFactorCallback?
Returns the converted factor value from the axis value
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<StatefulWidget>
Creates the mutable state for this widget at a given location in the tree.
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
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

Operators

operator ==(Object other) → bool
The equality operator.
inherited