StacBackdropFilter class

A Stac model representing Flutter's BackdropFilter widget.

Applies an StacImageFilter to the existing painted content before painting its child. Commonly used to create frosted glass blur effects.

{@tool snippet} Dart Example:

StacBackdropFilter(
  filter: StacImageFilter(type: StacImageFilterType.blur, sigmaX: 10, sigmaY: 10),
  child: StacContainer(color: '#33FFFFFF'),
)

{@end-tool}

{@tool snippet} JSON Example:

{
  "type": "backdropFilter",
  "filter": { "type": "blur", "sigmaX": 10, "sigmaY": 10 },
  "child": { "type": "container", "color": "#33FFFFFF" }
}

{@end-tool}

See also:

• Flutter's BackdropFilter documentation (https://api.flutter.dev/flutter/widgets/BackdropFilter-class.html)

Inheritance

• Object
• StacElement
• StacWidget
• StacBackdropFilter

Available extensions

• StacWidgetParser

Annotations

• @JsonSerializable.new(explicitToJson: true)

Constructors

StacBackdropFilter({required StacImageFilter filter, StacWidget? child, bool? enabled, StacBlendMode? blendMode})

Creates a StacBackdropFilter.

const

StacBackdropFilter.fromJson(Map<String, dynamic> json)

Creates a StacBackdropFilter from JSON.

factory

Properties

blendMode → StacBlendMode?

The blend mode to apply when blending the filter with existing content.

final

child → StacWidget?

The widget painted after applying the filter.

final

enabled → bool?

Whether the filter should be applied.

final

filter → StacImageFilter

The image filter to apply to the painted content behind child.

final

hashCode → int

The hash code for this object.

no setter, inherited

jsonData → Map<String, dynamic>?

Raw JSON data for this widget

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

type → String

Widget type identifier.

no setter, override

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

parse(BuildContext context) → Widget?

Available on StacWidget?, provided by the StacWidgetParser extension

parsePreferredSizeWidget(BuildContext context) → PreferredSizeWidget?

Available on StacWidget?, provided by the StacWidgetParser extension

toJson() → Map<String, dynamic>

Converts this StacBackdropFilter to JSON.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited