GlassButtonGroup class Panels and controls

Adjacent actions in one glass capsule — a circle for one — as iOS 26's toolbar draws them. One surface whatever the count.

The group is kGlassToolbarHeight tall and kGlassToolbarItemWidth wide per item. A held item brightens its own cell of the capsule by pressedOverlay, the way GlassButton brightens its whole; a disabled item is drawn at 0.3 opacity. A focused item is pressed by Space or Enter, and ringed inside its cell.

The items run in the reading direction: under TextDirection.rtl the first is at the right.

GlassButtonGroup(
  items: <GlassToolbarItem>[
    GlassToolbarItem(icon: const Icon(Icons.reply), label: 'Reply', onPressed: reply),
    GlassToolbarItem(icon: const Icon(Icons.archive), label: 'Archive', onPressed: archive),
    GlassToolbarItem(icon: const Icon(Icons.delete), label: 'Delete', onPressed: delete),
  ],
)

Note: three GlassButtons are three surfaces, and the fragmentation excess grows as the square of the count. Three items here are one.

See also:

• GlassButton, a single action with a label of its own.
• GlassBar, which a group can sit beside or, at the price of glass on glass, on.
• Toolbar on the site.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatefulWidget
• GlassButtonGroup

Constructors

GlassButtonGroup({required List<GlassToolbarItem> items, GlassFinish? finish, Color? pressedOverlay, Key? key})

A group of items, of which there must be at least one.

const

Properties

finish → GlassFinish?

The optics. Null takes the theme's.

final

hashCode → int

The hash code for this object.

no setter, inherited

items → List<GlassToolbarItem>

The actions, in the reading direction.

final

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

pressedOverlay → Color?

What is added over a held item's cell. Null takes the finish's rim, as GlassButton does.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

createElement() → StatefulElement

Creates a StatefulElement to manage this widget's location in the tree.

inherited

createState() → State<GlassButtonGroup>

Creates the mutable state for this widget at a given location in the tree.

override

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