HeadlessThemeProvider class

Provides HeadlessTheme to descendant widgets.

Wrap your app (or a subtree) with this widget to make the theme available via HeadlessThemeProvider.of or HeadlessThemeProvider.themeOf.

Example:

HeadlessThemeProvider(
  theme: MyCustomTheme(),
  child: MaterialApp(...),
)
Inheritance

Constructors

HeadlessThemeProvider({Key? key, required HeadlessTheme theme, required Widget child})
const

Properties

child → Widget
The widget below this widget in the tree.
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
theme → HeadlessTheme
The theme to provide to descendants.
final

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.
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
updateShouldNotify(covariant HeadlessThemeProvider oldWidget) → bool
Whether the framework should notify widgets that inherit from this widget.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

capabilityOf<T>(BuildContext context, {required String componentName}) → T
Convenience method to get a required capability from the theme.
maybeCapabilityOf<T>(BuildContext context, {required String componentName}) → T?
Safe capability lookup.
of(BuildContext context) → HeadlessTheme?
Get the HeadlessTheme from the widget tree.
themeOf(BuildContext context) → HeadlessTheme
Get the HeadlessTheme from the widget tree.