GlassBackdropScope class

Deprecated — this widget is now a no-op. Remove it from your tree.

Prior to 0.14.0, this widget installed a shared BackdropGroup that all glass surfaces used for GPU blur-sharing. Each LiquidGlassLayer now manages its own isolated BackdropGroup, which:

  • Fixes visual corruption on Impeller when multiple layers shared one BackdropGroup (e.g. app bar backgrounds disappearing).
  • Reduces GPU bandwidth — each layer captures only its own clipped bounding box instead of a full-screen texture.
  • Eliminates ghost artefacts on route transitions — no stale texture from the previous page can bleed through.

GlassPage handles backdrop isolation automatically. If you were using GlassBackdropScope manually, simply remove it.

Inheritance
Annotations
  • @Deprecated('Backdrop isolation is now handled automatically by GlassPage and individual ' 'glass layers. This widget is a no-op and can be safely removed. ' 'Deprecated in v0.14.0')

Constructors

GlassBackdropScope({Key? key, required Widget child})
Creates a GlassBackdropScope.
const

Properties

child → Widget
The widget below this widget in the tree.
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

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
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