StreamReactionPicker class

A horizontal bar of tappable emoji reactions.

Displays a list of StreamReactionPickerItems as tappable emoji buttons with a built-in "add reaction" button. The reaction items are horizontally scrollable while the add button remains fixed at the trailing edge.

The add button is always visible — when onAddReactionTap is null, it is rendered in a disabled state.

This is a domain-agnostic component — it has no knowledge of chat models. For chat-specific usage, see StreamMessageReactionPicker in stream_chat_flutter.

{@tool snippet}

Display a reaction picker:

StreamReactionPicker(
  items: [
    StreamReactionPickerItem(key: 'like', emoji: StreamUnicodeEmoji('👍')),
    StreamReactionPickerItem(key: 'love', emoji: StreamUnicodeEmoji('❤️'), isSelected: true),
  ],
  onReactionPicked: (item) => print('Picked: ${item.key}'),
  onAddReactionTap: () => print('Open emoji picker'),
)

{@end-tool}

See also:

• StreamReactionPickerTheme, for customizing the picker appearance.
• StreamReactionPickerItem, which represents a single reaction option.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• StreamReactionPicker

Constructors

StreamReactionPicker({Key? key, required List<StreamReactionPickerItem> items, OnReactionItemPicked? onReactionPicked, VoidCallback? onAddReactionTap})

Creates a reaction picker with the given items.

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 → StreamReactionPickerProps

The properties that configure this reaction picker.

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