M3EAppBar class

A Material 3 Expressive app bar with top, bottom, and sliver variants.

Inheritance
Implemented types

Constructors

M3EAppBar.bottom({Key? key, List<Widget>? actions = const <Widget>[], Widget? floatingActionButton, bool safeArea = true})
A bottom app bar with actions and an optional floating action button.
const
M3EAppBar.search({Key? key, required M3ESearchController searchController, required M3ESearchSuggestionsBuilder suggestionsBuilder, Widget? leading, List<Widget>? actions, bool centerTitle = false, String? barHintText, Widget? barLeading, Iterable<Widget>? barTrailing, WidgetStateProperty<Color?>? barBackgroundColor, bool isFullScreen = true, Color? backgroundColor, Color? foregroundColor, double? elevation, M3EAppBarShapeFamily shapeFamily = M3EAppBarShapeFamily.square, M3EAppBarDensity density = M3EAppBarDensity.regular, double? toolbarHeight, bool automaticallyImplyLeading = false, bool safeArea = true, Clip clipBehavior = Clip.none, String? semanticLabel, ValueChanged<String>? onSubmitted, ValueChanged<String>? onChanged, VoidCallback? onClose, VoidCallback? onOpen, BoxConstraints? searchConstraints})
A top app bar whose title is a read-only anchored M3ESearchAnchor.bar.
factory
M3EAppBar.sliver({Key? key, Widget? leading, Widget? title, String? titleText, List<Widget>? actions, bool centerTitle = false, Color? backgroundColor, Color? foregroundColor, bool pinned = true, bool floating = false, bool snap = false, M3EAppBarShapeFamily shapeFamily = M3EAppBarShapeFamily.round, M3EAppBarDensity density = M3EAppBarDensity.regular, M3EAppBarVariant variant = M3EAppBarVariant.medium, String? semanticLabel})
A scrolling sliver app bar for use in CustomScrollView.slivers.
const
M3EAppBar.top({Key? key, Widget? leading, Widget? title, String? titleText, List<Widget>? actions, bool centerTitle = false, Color? backgroundColor, Color? foregroundColor, double? elevation, M3EAppBarShapeFamily shapeFamily = M3EAppBarShapeFamily.square, M3EAppBarDensity density = M3EAppBarDensity.regular, double? toolbarHeight, bool automaticallyImplyLeading = false, bool safeArea = true, Clip clipBehavior = Clip.none, String? semanticLabel})
A fixed top app bar for use in Scaffold.appBar.
const

Properties

actions → List<Widget>?
actions.
final
automaticallyImplyLeading → bool
automaticallyImplyLeading.
final
backgroundColor → Color?
backgroundColor.
final
centerTitle → bool
centerTitle.
final
clipBehavior → Clip
clipBehavior.
final
density → M3EAppBarDensity
density.
final
elevation → double?
elevation.
final
floating → bool
floating.
final
floatingActionButton → Widget?
floatingActionButton.
final
foregroundColor → Color?
foregroundColor.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
leading → Widget?
leading.
final
pinned → bool
pinned.
final
preferredSize → Size
The size this widget would prefer if it were otherwise unconstrained.
no setteroverride
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
safeArea → bool
When true, applies MediaQuery.viewPadding on the docked edge only (top for M3EAppBar.top/M3EAppBar.search, bottom for M3EAppBar.bottom).
final
semanticLabel → String?
semanticLabel.
final
shapeFamily → M3EAppBarShapeFamily
shapeFamily.
final
snap → bool
snap.
final
title → Widget?
title.
final
titleText → String?
titleText.
final
toolbarHeight → double?
toolbarHeight.
final
variant → M3EAppBarVariant
variant.
final

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
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

Operators

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