BackdropToggleButton class
An animated button with backdrop related functionality.
It can be used to trigger the backdrop functionality of BackdropScaffold.
This button is implicitly used within BackdropAppBar. This button can also be passed to the BackdropAppBar.actions.
When being pressed, BackdropToggleButton looks for a Backdrop instance above it in the widget tree and toggles its opening/closing.
Example:
Widget build(BuildContext context) {
return MaterialApp(
title: 'Backdrop Demo',
home: BackdropScaffold(
...
actions: <Widget>[
BackdropToggleButton(
icon: AnimatedIcons.list_view,
),
],
),
);
}
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- BackdropToggleButton
Constructors
- BackdropToggleButton({Key? key, AnimatedIconData icon = AnimatedIcons.close_menu, Color color = Colors.white})
-
Creates an instance of BackdropToggleButton.
const
Properties
- color → Color
-
The animated icon's foreground color.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- icon → AnimatedIconData
-
Animated icon that is used for the contained AnimatedIcon.
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
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