ActionChip class Null safety

A Material Design action chip.

Action chips are a set of options which trigger an action related to primary content. Action chips should appear dynamically and contextually in a UI.

Action chips can be tapped to trigger an action or show progress and confirmation. They cannot be disabled; if the action is not applicable, the chip should not be included in the interface. (This contrasts with buttons, where unavailable choices are usually represented as disabled controls.)

Action chips are displayed after primary content, such as below a card or persistently at the bottom of a screen.

The material button widgets, ElevatedButton, TextButton, and OutlinedButton, are an alternative to action chips, which should appear statically and consistently in a UI.

Requires one of its ancestors to be a Material widget.

This example shows how to create an ActionChip with a leading icon. The icon is updated when the ActionChip is pressed.

To create a local project with this code sample, run:
flutter create --sample=material.ActionChip.1 mysample

Material Design 3

ActionChip can be used for both the Assist and Suggestion chips from Material Design 3. If ThemeData.useMaterial3 is true, then ActionChip will be styled to match the Material Design 3 Assist and Suggestion chips.

Constructors

ActionChip({Key? key, Widget? avatar, required Widget label, TextStyle? labelStyle, EdgeInsetsGeometry? labelPadding, VoidCallback? onPressed, double? pressElevation, String? tooltip, BorderSide? side, OutlinedBorder? shape, Clip clipBehavior = Clip.none, FocusNode? focusNode, bool autofocus = false, Color? backgroundColor, Color? disabledColor, EdgeInsetsGeometry? padding, VisualDensity? visualDensity, MaterialTapTargetSize? materialTapTargetSize, double? elevation, Color? shadowColor, Color? surfaceTintColor, IconThemeData? iconTheme}): Create a chip that acts like a button.
const

Properties

autofocus → bool: True if this widget will be selected as the initial focus when no other node in its scope is currently focused.
final
avatar → Widget?: A widget to display prior to the chip's label.
final
backgroundColor → Color?: Color to be used for the unselected, enabled chip's background.
final
clipBehavior → Clip: The content will be clipped (or not) according to this option.
final
disabledColor → Color?: The color used for the chip's background to indicate that it is not enabled.
final
elevation → double?: Elevation to be applied on the chip relative to its parent.
final
focusNode → FocusNode?: An optional focus node to use as the focus node for this widget.
final
hashCode → int: The hash code for this object.
nonVirtual">@nonVirtualread-onlyinherited
iconTheme → IconThemeData?: Theme used for all icons in the chip.
final
isEnabled → bool: Whether or not this chip is enabled for input.
read-onlyoverride
key → Key?: Controls how one widget replaces another widget in the tree.
finalinherited
label → Widget: The primary content of the chip.
final
labelPadding → EdgeInsetsGeometry?: The padding around the label widget.
final
labelStyle → TextStyle?: The style to be applied to the chip's label.
final
materialTapTargetSize → MaterialTapTargetSize?: Configures the minimum size of the tap target.
final
onPressed → VoidCallback?: Called when the user taps the chip.
final
padding → EdgeInsetsGeometry?: The padding between the contents of the chip and the outside shape.
final
pressElevation → double?: Elevation to be applied on the chip relative to its parent during the press motion.
final
runtimeType → Type: A representation of the runtime type of the object.
read-onlyinherited
shadowColor → Color?: Color of the chip's shadow when the elevation is greater than 0.
final
shape → OutlinedBorder?: The OutlinedBorder to draw around the chip.
final
side → BorderSide?: The color and weight of the chip's outline.
final
surfaceTintColor → Color?: Color of the chip's surface tint overlay when its elevation is greater than 0.
final
tooltip → String?: Tooltip string to be used for the body area (where the label and avatar are) of the chip.
final
visualDensity → VisualDensity?: Defines how compact the chip's layout will be.
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.
protected">@protectedinherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void: Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent 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}) → 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.
nonVirtual">@nonVirtualinherited

Flutter
material
ActionChip class