PlatformWidgetBase class abstract

Abstract base class for platform-adaptive widgets.

Subclasses override buildMaterial and buildCupertino to provide platform-specific implementations. The build method automatically delegates to the correct builder based on defaultTargetPlatform.

On Android, buildMaterial is called. On iOS, buildCupertino is called. Other platforms throw an UnsupportedError.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• PlatformWidgetBase

Implementers

• PlatformApp
• PlatformCheckbox
• PlatformRadioGroup
• PlatformSearchBar
• PlatformSlider
• PlatformTabScaffoldOriginal
• PlatformTextField
• PlatformWidget
• PlatformWidgetBuilder
• PlatformWidgetBuilderBase
• PlatformWidgetKeyedBase

Annotations

• @protected

Constructors

PlatformWidgetBase({Key? key})

Creates a platform-adaptive widget.

const

Properties

hashCode → int

The hash code for this object.

no setter, inherited

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

build(BuildContext context) → Widget

Describes the part of the user interface represented by this widget.

override

buildCupertino(BuildContext context) → Widget

Builds the Cupertino (iOS) variant of this widget.

buildMaterial(BuildContext context) → Widget

Builds the Material Design (Android) variant of this widget.

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