Chip class - material library

A Material Design chip.

Chips are compact elements that represent an attribute, text, entity, or action.

Supplying a non-null onDeleted callback will cause the chip to include a button for deleting the chip.

Its ancestors must include Material, MediaQuery, Directionality, and MaterialLocalizations. Typically all of these widgets are provided by MaterialApp and Scaffold. The label and clipBehavior arguments must not be null.

link

Chip(
  avatar: CircleAvatar(
    backgroundColor: Colors.grey.shade800,
    child: const Text('AB'),
  ),
  label: const Text('Aaron Burr'),
)

See also:

  • InputChip, a chip that represents a complex piece of information, such as an entity (person, place, or thing) or conversational text, in a compact form.
  • ChoiceChip, allows a single selection from a set of options. Choice chips contain related descriptive text or categories.
  • FilterChip, uses tags or descriptive words as a way to filter content.
  • ActionChip, represents an action related to primary content.
  • CircleAvatar, which shows images or initials of entities.
  • Wrap, A widget that displays its children in multiple horizontal or vertical runs.
  • material.io/design/components/chips.html
Inheritance
Implemented types

Constructors

Chip({Key? key, Widget? avatar, required Widget label, TextStyle? labelStyle, EdgeInsetsGeometry? labelPadding, Widget? deleteIcon, VoidCallback? onDeleted, Color? deleteIconColor, String? deleteButtonTooltipMessage, BorderSide? side, OutlinedBorder? shape, Clip clipBehavior = Clip.none, FocusNode? focusNode, bool autofocus = false, WidgetStateProperty<Color?>? color, Color? backgroundColor, EdgeInsetsGeometry? padding, VisualDensity? visualDensity, MaterialTapTargetSize? materialTapTargetSize, double? elevation, Color? shadowColor, Color? surfaceTintColor, IconThemeData? iconTheme, BoxConstraints? avatarBoxConstraints, BoxConstraints? deleteIconBoxConstraints, ChipAnimationStyle? chipAnimationStyle, MouseCursor? mouseCursor})
Creates a Material Design chip.

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

avatarBoxConstraints BoxConstraints?
Optional size constraints for the avatar.

final

backgroundColor Color?
Color to be used for the unselected, enabled chip's background.

final

chipAnimationStyle ChipAnimationStyle?
Used to override the default chip animations durations.

final

clipBehavior Clip
The content will be clipped (or not) according to this option.

final

color WidgetStateProperty<Color?>?
The color that fills the chip, in all WidgetStates.

final

deleteButtonTooltipMessage String?
The message to be used for the chip's delete button tooltip.

final

deleteIcon Widget?
The icon displayed when onDeleted is set.

final

deleteIconBoxConstraints BoxConstraints?
Optional size constraints for the delete icon.

final

deleteIconColor Color?
Used to define the delete icon's color with an IconTheme that contains the icon.

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.

no setterinherited

iconTheme IconThemeData?
Theme used for all icons in the chip.

final

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

mouseCursor MouseCursor?
The cursor for a mouse pointer when it enters or is hovering over the widget.

final

onDeleted VoidCallback?
Called when the user taps the deleteIcon to delete the chip.

final

padding EdgeInsetsGeometry?
The padding between the contents of the chip and the outside shape.

final

runtimeType Type
A representation of the runtime type of the object.

no setterinherited

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

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.

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