PlusMinusIndicator class

Uses a plus or minus to indicate the expansion state. Plus shows the collapsed state Minus shows the expanded state

** See also: ChevronIndicator for an expansion indicator using chevron

Inheritance

Constructors

PlusMinusIndicator({required ITreeNode tree, Key? key, Alignment alignment = Alignment.topRight, EdgeInsets padding = EdgeInsets.zero, Curve curve = Curves.ease, Color? color})

Properties

alignment Alignment
By default the alignment is Alignment.topRight
finalinherited
color Color?
The color for the expansion indicator.
finalinherited
curve Curve
The animation curve for the expansion indicator animation
finalinherited
hashCode int
The hash code for this object.
no setterinherited
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
padding EdgeInsets
The padding around the expandIcon and collapseIcon
finalinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
tree ITreeNode
Value to set the expansion state of the indicator
finalinherited

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}) 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