ColumnChart class

Introduction

A column chart is a method of displaying data with categories represented by a rectangle—sometimes called vertical bar charts. They allow easy comparisons among a number of items and trends analysis.

Preview

preview

Inheritance

Constructors

ColumnChart({Key? key, double width = 500, double height = 300, required List<ChartLabeledData> datas, ChartController<ChartLabeledState>? controller, ChartAnimation? animation, ChartBehavior<ChartState>? behavior, Color? backgroundColor, double barRatio = 0.5, double? maxValue, ChartMarkType markType = ChartMarkType.integer, ChartInteractionCallback<ChartState>? onTap, ChartInteractionCallback<ChartState>? onDoubleTap, ChartInteractionCallback<ChartState>? onLongPress, ChartInteractionCallback<ChartState>? onHoverStart, ChartInteractionCallback<ChartState>? onHoverEnd, int separatedLineCount = 5, double separatedLineWidth = 2, Color? separatedLineColor, TextStyle? separatedTextStyle, double separatedTextMargin = 15, ChartSeparatedTextAlignment separatedTextAlignment = ChartSeparatedTextAlignment.trailing, ChartSeparatedTextDirection separatedTextDirection = ChartSeparatedTextDirection.leading, Color? separatedBorderColor, double? separatedBorderWidth, StrokeCap separatedLineCap = StrokeCap.butt, double labelTextMargin = 5, TextStyle? labelTextStyle, double barInnerTextMargin = 10, double barOuterTextMargin = 3, ChartTextStyleBuilder<ChartLabeledState>? barInnerTextStyle, ChartTextStyleBuilder<ChartLabeledState>? barOuterTextStyle, ChartBarTextAlignment barTextAlignment = ChartBarTextAlignment.outer, BorderRadius barBorderRadius = const BorderRadius.vertical(top: Radius.circular(5)), Color? barColor, bool isVisibleSeparatedText = true, bool isVisibleBarText = false, bool isVisibleLabel = true})
const

Properties

animation → ChartAnimation?
The instance that defines current animation setting values of the chart.
final
backgroundColor → Color?
The background color excluding the separated text area and the bottom labels area.
final
barBorderRadius → BorderRadius
final
barColor → Color?
final
barInnerTextMargin → double
final
barInnerTextStyle → ChartTextStyleBuilder<ChartLabeledState>?
final
barOuterTextMargin → double
final
barOuterTextStyle → ChartTextStyleBuilder<ChartLabeledState>?
final
barRatio → double
The ratio that is rate of width at which the bar is rendered in the bar area.
final
barTextAlignment → ChartBarTextAlignment
final
behavior → ChartBehavior<ChartState>?
The instance that defines current behavior of the chart.
final
controller → ChartController<ChartLabeledState>?
The instance that defines the current controller of the chart.
final
datas → List<ChartLabeledData>
The values that defines the current datas of column chart.
final
hashCode → int
The hash code for this object.
no setterinherited
height → double
finalinherited
isVisibleBarText → bool
final
isVisibleLabel → bool
final
isVisibleSeparatedText → bool
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
labelTextMargin → double
final
labelTextStyle → TextStyle?
final
markType → ChartMarkType
The value that defines type of how to display values in a chart.
final
maxValue → double?
The value that defines the maximum value in this chart.
final
onDoubleTap → ChartInteractionCallback<ChartState>?
The callback that is called when each bar in the column chart is double tapped.
final
onHoverEnd → ChartInteractionCallback<ChartState>?
The callback that is called when each bar in the column chart is hover ended.
final
onHoverStart → ChartInteractionCallback<ChartState>?
The callback that is called when each bar in the column chart is hover started.
final
onLongPress → ChartInteractionCallback<ChartState>?
The callback that is called when each bar in the column chart is long pressed.
final
onTap → ChartInteractionCallback<ChartState>?
The callback that is called when each bar in the column chart is single tapped.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
separatedBorderColor → Color?
final
separatedBorderWidth → double?
final
separatedLineCap → StrokeCap
final
separatedLineColor → Color?
final
separatedLineCount → int
final
separatedLineWidth → double
final
separatedTextAlignment → ChartSeparatedTextAlignment
final
separatedTextDirection → ChartSeparatedTextDirection
final
separatedTextMargin → double
final
separatedTextStyle → TextStyle?
final
theme → ChartTheme?
finalinherited
width → double
finalinherited

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<ColumnChart>
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