FunnelChartWidget class

A funnel chart widget displaying data in a funnel shape.

Similar to pyramid but inverted, with the largest segment at the top and smallest at the bottom, useful for sales funnels and conversion tracking. This visualization helps identify where users drop off in a process.

Features

  • Sales funnel and conversion tracking
  • Interactive segment tapping with visual border highlighting
  • Gradient fills
  • Smooth animations
  • Full theme support

Example

FunnelChartWidget(
  data: [
    PieData(label: 'Visitors', value: 1000, color: Colors.blue),
    PieData(label: 'Leads', value: 500, color: Colors.green),
    PieData(label: 'Qualified', value: 250, color: Colors.orange),
    PieData(label: 'Customers', value: 100, color: Colors.red),
  ],
  theme: ChartTheme.light(),
  title: 'Sales Funnel',
  onSegmentTap: (segment, segmentIndex, position) {
    // Handle segment tap
  },
)
Inheritance

Constructors

FunnelChartWidget({Key? key, required List<PieData> data, ChartTheme? theme, String? title, String? subtitle, bool useGlassmorphism = false, bool useNeumorphism = false, PieSegmentCallback? onSegmentTap, bool isLoading = false, bool isError = false, String? errorMessage})

Properties

data → List<PieData>
final
errorMessage → String?
final
hashCode → int
The hash code for this object.
no setterinherited
isError → bool
final
isLoading → bool
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onSegmentTap → PieSegmentCallback?
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
subtitle → String?
final
theme → ChartTheme?
final
title → String?
final
useGlassmorphism → bool
final
useNeumorphism → bool
final

Methods

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