StreamEmojiChipBar<T> class

A horizontally scrollable bar of StreamEmojiChips for filtering by reaction type.

StreamEmojiChipBar renders a row of emoji chips where each StreamEmojiChipItem represents a reaction type with its count. Selection is value-based using T and supports toggle behavior: tapping the already-selected item deselects it.

The generic type T represents the value associated with each item (e.g. a reaction type string, an enum, or even a Widget). Selection comparison uses T.==, so ensure T has meaningful equality semantics.

An optional leading widget (typically StreamEmojiChip.addEmoji) is rendered before the items inside the same scrollable row.

To customize the appearance of chips inside the bar, wrap it with a StreamEmojiChipTheme.

{@tool snippet}

Basic usage with String values:

StreamEmojiChipBar<String>(
  leading: StreamEmojiChip.addEmoji(
    onPressed: () => showReactionPicker(),
  ),
  items: [
    StreamEmojiChipItem(value: '👍', emoji: StreamUnicodeEmoji('👍'), count: 7),
    StreamEmojiChipItem(value: '❤️', emoji: StreamUnicodeEmoji('❤️'), count: 5),
  ],
  selected: _selectedReaction,
  onSelected: (value) => setState(() => _selectedReaction = value),
)

{@end-tool}

See also:

• StreamEmojiChipTheme, for customizing chip appearance inside the bar.
• StreamEmojiChip, which renders each individual chip.
• StreamEmojiChipItem, which describes a single filter item.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• StreamEmojiChipBar

Constructors

StreamEmojiChipBar({Key? key, Widget? leading, required List<StreamEmojiChipItem<T>> items, T? selected, ValueChanged<T?>? onSelected, EdgeInsetsGeometry? padding, double? spacing})

Creates an emoji chip bar.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

props → StreamEmojiChipBarProps<T>

The props controlling the appearance and behavior of this bar.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

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