ExpansionTile class

Inheritance

Constructors

ExpansionTile({Key? key, Widget? leading, required Widget title, Widget? subtitle, ValueChanged<bool>? onExpansionChanged, List<Widget> children = const <Widget>[], Widget? trailing, bool initiallyExpanded = false, bool maintainState = false, EdgeInsetsGeometry? tilePadding, CrossAxisAlignment? expandedCrossAxisAlignment, Alignment? expandedAlignment, EdgeInsetsGeometry? childrenPadding, Color? backgroundColor, Color? collapsedBackgroundColor, Color? textColor, Color? collapsedTextColor, Color? iconColor, Color? collapsedIconColor, ListTileControlAffinity? controlAffinity})
const

Properties

backgroundColor → Color?
The color to display behind the sublist when expanded.
final
children → List<Widget>
The widgets that are displayed when the tile expands.
final
childrenPadding → EdgeInsetsGeometry?
Specifies padding for children.
final
collapsedBackgroundColor → Color?
When not null, defines the background color of tile when the sublist is collapsed.
final
collapsedIconColor → Color?
The icon color of tile's expansion arrow icon when the sublist is collapsed.
final
collapsedTextColor → Color?
The color of the tile's titles when the sublist is collapsed.
final
controlAffinity → ListTileControlAffinity?
Typically used to force the expansion arrow icon to the tile's leading or trailing edge.
final
expandedAlignment → Alignment?
Specifies the alignment of children, which are arranged in a column when the tile is expanded.
final
expandedCrossAxisAlignment → CrossAxisAlignment?
Specifies the alignment of each child within children when the tile is expanded.
final
hashCode → int
The hash code for this object.
no setterinherited
iconColor → Color?
The icon color of tile's expansion arrow icon when the sublist is expanded.
final
initiallyExpanded → bool
Specifies if the list tile is initially expanded (true) or collapsed (false, the default).
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
leading → Widget?
A widget to display before the title.
final
maintainState → bool
Specifies whether the state of the children is maintained when the tile expands and collapses.
final
onExpansionChanged → ValueChanged<bool>?
Called when the tile expands or collapses.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
subtitle → Widget?
Additional content displayed below the title.
final
textColor → Color?
The color of the tile's titles when the sublist is expanded.
final
tilePadding → EdgeInsetsGeometry?
Specifies padding for the ListTile.
final
title → Widget
The primary content of the list item.
final
trailing → Widget?
A widget to display after the title.
final

Methods

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