BackdropSubHeader class

A wrapper for adding a sub-header to the used backdrop front layer(s).

This class can be passed to BackdropScaffold to specify the sub-header that should be shown while the front layer is "inactive" (the back layer is "showing").

Usage example:

BackdropScaffold(
  appBar: ...,
  backLayer: ...,
  subHeader: BackdropSubHeader(
    title: Text("Sub Header"),
  ),
  frontLayer: ...,
)
Inheritance

Constructors

BackdropSubHeader({Key? key, required Widget title, Widget? divider, EdgeInsets padding = const EdgeInsets.symmetric(vertical: 12.0, horizontal: 16.0), bool automaticallyImplyLeading = false, bool automaticallyImplyTrailing = true, Widget? leading, Widget? trailing})
Creates a BackdropSubHeader instance.
const

Properties

automaticallyImplyLeading → bool
Flag indicating whether to add default leading widget.
final
automaticallyImplyTrailing → bool
Flag indicating whether to add default trailing widget.
final
divider → Widget?
The divider that should be shown at the bottom of the sub-header.
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?
Widget to be shown as leading element to the sub-header.
final
padding → EdgeInsets
Padding that will be applied to the sub-header.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
title → Widget
The primary content of the sub-header.
final
trailing → Widget?
Widget to be shown as trailing element to the sub-header.
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}) → 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