HeadlessMaterialApp class

MaterialApp bootstrap for Headless.

What it does:

  • Provides HeadlessThemeProvider with MaterialHeadlessTheme by default.
  • Installs AnchoredOverlayEngineHost (required for overlay-based components).
  • Manages OverlayController lifecycle unless you pass one.

Intended to reduce onboarding boilerplate: HeadlessThemeProvider + AnchoredOverlayEngineHost + MaterialApp(...).

Inheritance

Constructors

HeadlessMaterialApp({Key? key, HeadlessTheme? headlessTheme, OverlayController? overlayController, bool enableAutoRepositionTicker = false, bool requireResolvedTokens = true, String title = '', bool debugShowCheckedModeBanner = false, ThemeData? theme, ThemeData? darkTheme, ThemeMode? themeMode, Color? color, Widget? home, Map<String, WidgetBuilder> routes = const <String, WidgetBuilder>{}, String? initialRoute, RouteFactory? onGenerateRoute, RouteFactory? onUnknownRoute, GlobalKey<NavigatorState>? navigatorKey, GlobalKey<ScaffoldMessengerState>? scaffoldMessengerKey, TransitionBuilder? builder, Locale? locale, Iterable<LocalizationsDelegate>? localizationsDelegates, LocaleResolutionCallback? localeResolutionCallback, Iterable<Locale> supportedLocales = const <Locale>[Locale('en', 'US')]})
const

Properties

builder → TransitionBuilder?
final
color → Color?
final
darkTheme → ThemeData?
final
debugShowCheckedModeBanner → bool
final
enableAutoRepositionTicker → bool
When enabled, AnchoredOverlayEngineHost will request reposition every frame while overlays are active.
final
hashCode → int
The hash code for this object.
no setterinherited
headlessTheme → HeadlessTheme?
Headless theme used by components (capability provider).
final
home → Widget?
final
initialRoute → String?
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
locale → Locale?
final
localeResolutionCallback → LocaleResolutionCallback?
final
localizationsDelegates → Iterable<LocalizationsDelegate>?
final
final
onGenerateRoute → RouteFactory?
final
onUnknownRoute → RouteFactory?
final
overlayController → OverlayController?
Optional external overlay controller.
final
requireResolvedTokens → bool
When true, preset renderers require non-null resolvedTokens.
final
routes → Map<String, WidgetBuilder>
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scaffoldMessengerKey → GlobalKey<ScaffoldMessengerState>?
final
supportedLocales → Iterable<Locale>
final
theme → ThemeData?
final
themeMode → ThemeMode?
final
title → String
final

Methods

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

Operators

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