NodeWidgetLeadingIcon class

A widget to expand/collapse the TreeNode within the nearest TreeNodeScope.

Inheritance

Constructors

NodeWidgetLeadingIcon({Key? key, Icon? expandIcon, Icon? collapseIcon, Icon leafIcon = const Icon(Icons.article_rounded), EdgeInsetsGeometry padding = const EdgeInsets.all(8.0), bool useFoldersOnly = false, Color? leafIconDisabledColor, double? splashRadius, VoidCallback? onPressed})
Creates a NodeWidgetLeadingIcon.
const

Properties

collapseIcon → Icon?
The icon displayed when TreeNodeScope.node is collapsed and is not a Leaf. Defaults to NodeWidgetLeadingIcon.kCollapseIcon.
final
expandIcon → Icon?
The icon displayed when TreeNodeScope.node is collapsed and is not a Leaf. Defaults to NodeWidgetLeadingIcon.kExpandIcon.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
leafIcon → Icon
The icon displayed when TreeNodeScope.node is a Leaf. Defaults to NodeWidgetLeadingIcon.kLeafIcon.
final
leafIconDisabledColor → Color?
The color used by leafIcon when it's IconButton is disabled (i.e. onPressed is null).
final
onPressed → VoidCallback?
Callback fired when the icon is pressed.
final
padding → EdgeInsetsGeometry
The padding around the button's icon. The entire padded icon will react to input gestures.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
splashRadius → double?
The splash radius used in IconButton.
final
useFoldersOnly → bool
If set to true, leafIcon will be ignored and every TreeNodeScope.node will be expandable, even nodes without children.
final

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
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

Constants

kCollapseIcon → const Icon
The default icon used when a TreeNode is expanded and it is not a Leaf.
kCollapseIconKey → const ValueKey<String>
A Key for collapseIcon, necessary for flutter to know which widget to replace when animating.
kExpandIcon → const Icon
The default icon used when a TreeNode is collapsed and it is not a Leaf.
kExpandIconKey → const ValueKey<String>
A Key for the expandIcon, necessary for flutter to know which widget to replace when animating.