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