LayrzPreviewTheme class final

A PreviewThemeData implementation that applies the layrz_ui light-mode theme to Flutter 3.47+ widget previews.

This class extends the SDK's PreviewThemeData (an abstract base class) to provide a complete light-theme context for @Preview annotations. It reproduces the exact widget nesting that LayrzApp installs at the root, so previewed widgets render identically to the production app rather than with SDK defaults.

To use with @Preview annotations, use the top-level function layrzPreviewLightTheme (not the static method LayrzPreviewTheme.light, which the code generator cannot resolve):

import 'package:flutter/widget_previews.dart';
import 'package:layrz_ui/preview.dart';

@Preview(
  name: 'Light',
  theme: layrzPreviewLightTheme,
)
Widget previewMyWidget() => MyWidget(/* ... */);

The apply method nests the child in the exact same layers as the nesting LayrzApp installs at the root:

• LayrzTheme to propagate theme data
• DefaultTextStyle to set base typography
• IconTheme to configure icon styling
• ColoredBox to paint the background

The theme's data can be accessed via LayrzTheme.of or the tokens extension method inside any descendant.

Inheritance

• Object
• PreviewThemeData
• LayrzPreviewTheme

Constructors

LayrzPreviewTheme({required LayrzThemeData data})

Creates a LayrzPreviewTheme wrapping the given LayrzThemeData.

const

Properties

data → LayrzThemeData

The theme data applied to all descendants in apply.

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

apply(BuildContext context, Widget child) → Widget

Wraps the child widget in the full layrz_ui theme context.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

light() → PreviewThemeData

Creates a LayrzPreviewTheme with default light-mode design tokens.