ButtonBarTheme class

Applies a button bar theme to descendant ButtonBar widgets.

A button bar theme describes the layout and properties for the buttons contained in a ButtonBar.

Descendant widgets obtain the current theme's ButtonBarTheme object using ButtonBarTheme.of. When a widget uses ButtonBarTheme.of, it is automatically rebuilt if the theme later changes.

A button bar theme can be specified as part of the overall Material theme using ThemeData.buttonBarTheme.

See also:

Inheritance

Constructors

ButtonBarTheme({Key key, @required ButtonBarThemeData data, Widget child})
Constructs a button bar theme that configures all descendent ButtonBar widgets. [...]
const

Properties

data ButtonBarThemeData
The properties used for all descendant ButtonBar widgets.
final
child Widget
The widget below this widget in the tree.
final, inherited
hashCode int
The hash code for this object. [...]
read-only, inherited
key Key
Controls how one widget replaces another widget in the tree.
final, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

updateShouldNotify(covariant ButtonBarTheme oldWidget) bool
Whether the framework should notify widgets that inherit from this widget. [...]
override
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, inherited
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.debug}) String
Returns 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 ==(dynamic other) bool
The equality operator. [...]
inherited

Static Methods

of(BuildContext context) ButtonBarThemeData
Returns the configuration data from the closest ButtonBarTheme ancestor. If there is no ancestor, it returns ThemeData.buttonBarTheme. Applications can assume that the returned value will not be null. [...]