NavigationRailTheme class Null safety

An inherited widget that defines visual properties for NavigationRails and NavigationRailDestinations in this widget's subtree.

Values specified here are used for NavigationRail properties that are not given an explicit non-null value.

Inheritance

Constructors

Creates a navigation rail theme that controls the NavigationRailThemeData properties for a NavigationRail.
const

Properties

child → Widget
The widget below this widget in the tree.
finalinherited
data → NavigationRailThemeData
Specifies the background color, elevation, label text style, icon theme, group alignment, and label type and border values for descendant NavigationRail widgets.
final
hashCode → int
The hash code for this object.
nonVirtual">@nonVirtualread-onlyinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited

Methods

createElement() → InheritedElement
Inflates this configuration to a concrete instance.
inherited
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
protected">@protectedinherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
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
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
updateShouldNotify(covariant NavigationRailTheme oldWidget) → bool
Whether the framework should notify widgets that inherit from this widget.
override
wrap(BuildContext context, Widget child) → Widget
Return a copy of this inherited theme with the specified child.
override

Operators

operator ==(Object other) → bool
The equality operator.
nonVirtual">@nonVirtualinherited

Static Methods

of(BuildContext context) → NavigationRailThemeData
The closest instance of this class that encloses the given context.