SafaehMorphingAppBar class

An app bar whose title and host-provided chrome follow a page position.

The host owns the title widgets and any domain-specific actions. Safaeh keeps the title centered, crossfades adjacent titles while a page view is moving, and gives the host one stable action slot. bottom can be a SafaehMorphingAppBarBottom when its height should follow the page.

Inheritance
Implemented types

Constructors

SafaehMorphingAppBar({Key? key, required double page, required List<Widget> titles, Widget? leading, double? leadingWidth, bool automaticallyImplyLeading = false, bool centerTitle = true, SafaehMorphingAppBarActionBuilder? actionsBuilder, double actionSlotWidth = kToolbarHeight, PreferredSizeWidget? bottom})
Creates a page-positioned app bar.
const

Properties

actionsBuilder → SafaehMorphingAppBarActionBuilder?
Builds the fixed-width trailing action slot.
final
actionSlotWidth → double
Width reserved for the widget returned by actionsBuilder.
final
automaticallyImplyLeading → bool
Whether Material should infer a leading back button when leading is absent.
final
bottom → PreferredSizeWidget?
Optional bottom chrome. Its preferred height is included in this app bar's preferredSize.
final
centerTitle → bool
Whether the title is centered according to Material's app-bar rules.
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 widget. Pass a fixed-width spacer when the title must remain on the physical center line while the action slot changes.
final
leadingWidth → double?
Width reserved for leading when it is present.
final
page → double
Current page position, usually PageController.page.
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
titles → List<Widget>
Title widgets in page order. The host supplies already-localized text.
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