TooltipOverlay class

A widget that manages a tooltip overlay for a chart.

This widget provides a convenient way to show/hide tooltips based on user interactions.

Inheritance

Constructors

TooltipOverlay({Key? key, required Widget child, required TooltipController controller, required Widget tooltipBuilder(BuildContext context, dynamic data), TooltipPosition position = TooltipPosition.top, Offset offset = const Offset(0, 8), Color? backgroundColor, BorderRadius borderRadius = const BorderRadius.all(Radius.circular(4)), EdgeInsets padding = const EdgeInsets.symmetric(horizontal: 12, vertical: 8)})
Creates a TooltipOverlay widget.
const

Properties

backgroundColor → Color?
The background color of the tooltip.
final
borderRadius → BorderRadius
The border radius of the tooltip.
final
child → Widget
The child widget (usually a chart).
final
controller → TooltipController
The controller for managing tooltip state.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
offset → Offset
The offset from the target position.
final
padding → EdgeInsets
The padding inside the tooltip.
final
position → TooltipPosition
The preferred position of the tooltip.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
tooltipBuilder → Widget Function(BuildContext context, dynamic data)
The builder function for creating tooltip content.
final

Methods

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