StreamThreadHeader class
Shows information about the current message thread.
Renders a StreamAppBar with the thread's reply label as the title and a live typing indicator (or reply count) as the subtitle. Inherits the StreamAppBar auto-implied back button — pass leading to override.
The bar's chrome (background, padding, typography, divider) is themed via StreamChatThemeData.threadHeaderTheme. Per-instance overrides go on style.
A StreamChannel ancestor is required so that the typing indicator can observe the channel's typing events.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- StreamThreadHeader
- Implemented types
Constructors
- StreamThreadHeader({Key? key, required Message parent, Widget? leading, bool automaticallyImplyLeading = true, Widget? title, Widget? subtitle, Widget? trailing, bool primary = true, StreamAppBarStyle? style})
-
Shows information about the current message thread.
const
Properties
- automaticallyImplyLeading → bool
-
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- leading → Widget?
-
final
- parent → Message
-
The message parent of this thread.
final
- preferredSize → Size
-
The size this widget would prefer if it were otherwise unconstrained.
no setteroverride
- primary → bool
-
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- style → StreamAppBarStyle?
-
Per-instance override; merges over
StreamChatThemeData.threadHeaderTheme.
final
- subtitle → Widget?
-
Defaults to a live StreamTypingIndicator that falls back to the
thread's reply count when nobody is typing.
final
- title → Widget?
-
Defaults to the localized "Thread reply" label.
final
- trailing → Widget?
-
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