SeoCenter class

A SEO-friendly equivalent of Flutter's Center widget.

This widget behaves like Flutter's Center in UI, but when running on the web, it can inject a <div> container into the HTML DOM for better SEO and accessibility.

Features:

• Centers a child widget in both Flutter UI and HTML DOM.
• Supports widthFactor and heightFactor like the standard Center.
• Automatically generates a unique HTML element ID if none is provided.
• Works with both SeoInjectable and SeoInjectableLayout children.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• SeoCenter

Implemented types

• SeoInjectableLayout

Constructors

SeoCenter({Key? key, Widget? child, double? widthFactor, double? heightFactor})

Creates a SeoCenter widget.

const

Properties

child → Widget?

The widget to display inside the center.

final

hashCode → int

The hash code for this object.

no setter, inherited

heightFactor → double?

If non-null, the height of this widget will be the child's height multiplied by this factor.

final

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

widthFactor → double?

If non-null, the width of this widget will be the child's width multiplied by this factor.

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

injectHtmlTo(WebHTMLElement parent) → void

Injects the HTML element into the given parent container.

override

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