ExpansionTileThemeData class Null safety

Used with ExpansionTileTheme to define default property values for descendant ExpansionTile widgets.

Descendant widgets obtain the current ExpansionTileThemeData object using ExpansionTileTheme.of(context). Instances of ExpansionTileThemeData can be customized with ExpansionTileThemeData.copyWith.

A ExpansionTileThemeData is often specified as part of the overall Theme with ThemeData.expansionTileTheme.

All ExpansionTileThemeData properties are null by default. When a theme property is null, the ExpansionTile will provide its own default based on the overall Theme's textTheme and colorScheme. See the individual ExpansionTile properties for details.

See also:

Mixed in types
Annotations

Constructors

ExpansionTileThemeData({Color? backgroundColor, Color? collapsedBackgroundColor, EdgeInsetsGeometry? tilePadding, AlignmentGeometry? expandedAlignment, EdgeInsetsGeometry? childrenPadding, Color? iconColor, Color? collapsedIconColor, Color? textColor, Color? collapsedTextColor})
Creates a ExpansionTileThemeData.
const

Properties

backgroundColor Color?
Overrides the default value of ExpansionTile.backgroundColor.
final
childrenPadding EdgeInsetsGeometry?
Overrides the default value of ExpansionTile.childrenPadding.
final
collapsedBackgroundColor Color?
Overrides the default value of ExpansionTile.collapsedBackgroundColor.
final
collapsedIconColor Color?
Overrides the default value of ExpansionTile.collapsedIconColor.
final
collapsedTextColor Color?
Overrides the default value of ExpansionTile.collapsedTextColor.
final
expandedAlignment AlignmentGeometry?
Overrides the default value of ExpansionTile.expandedAlignment.
final
hashCode int
The hash code for this object. [...]
read-only, override
iconColor Color?
Overrides the default value of ExpansionTile.iconColor.
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
textColor Color?
Overrides the default value of ExpansionTile.textColor.
final
tilePadding EdgeInsetsGeometry?
Overrides the default value of ExpansionTile.tilePadding.
final

Methods

copyWith({Color? backgroundColor, Color? collapsedBackgroundColor, EdgeInsetsGeometry? tilePadding, AlignmentGeometry? expandedAlignment, EdgeInsetsGeometry? childrenPadding, Color? iconColor, Color? collapsedIconColor, Color? textColor, Color? collapsedTextColor}) ExpansionTileThemeData
Creates a copy of this object with the given fields replaced with the new values.
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node. [...]
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent 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
toStringShort() String
A brief description of this object, usually just the runtimeType and the hashCode. [...]
inherited

Operators

operator ==(Object other) bool
The equality operator. [...]
override

Static Methods

lerp(ExpansionTileThemeData? a, ExpansionTileThemeData? b, double t) ExpansionTileThemeData?
Linearly interpolate between ExpansionTileThemeData objects.