AboutDialog class Null safety

An about box. This is a dialog box with the application's icon, name, version number, and copyright, plus a button to show licenses for software used by the application.

To show an AboutDialog, use showAboutDialog.

If the application has a Drawer, the AboutListTile widget can make the process of showing an about dialog simpler.

The AboutDialog shown by showAboutDialog includes a button that calls showLicensePage.

The licenses shown on the LicensePage are those returned by the LicenseRegistry API, which can be used to add more licenses to the list.

Inheritance

Constructors

AboutDialog({Key? key, String? applicationName, String? applicationVersion, Widget? applicationIcon, String? applicationLegalese, List<Widget>? children})
Creates an about box.
const

Properties

applicationIcon → Widget?
The icon to show next to the application name.
final
applicationLegalese → String?
A string to show in small print.
final
applicationName → String?
The name of the application.
final
applicationVersion → String?
The version of this build of the application.
final
children → List<Widget>?
Widgets to add to the dialog box after the name, version, and legalese.
final
hashCode → int
The hash code for this object.
nonVirtual">@nonVirtualread-onlyinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited

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.
protected">@protectedinherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent 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.
nonVirtual">@nonVirtualinherited