StreamChannel class Null safety

Widget used to provide information about the channel to the widget tree

Use StreamChannel.of to get the current StreamChannelState instance.

Inheritance

Constructors

StreamChannel({Key? key, required Widget child, required Channel channel, bool showLoading = true, String? initialMessageId})
Creates a new instance of StreamChannel. Both child and client must be supplied and not null.
const

Properties

channel Channel
channel specifies the channel with which child should be wrapped
final
child Widget
The child of the widget
final
hashCode int
The hash code for this object. [...]
@nonVirtual, read-only, inherited
initialMessageId String?
If passed the channel will load from this particular message.
final
key Key?
Controls how one widget replaces another widget in the tree. [...]
final, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
showLoading bool
Shows a loading indicator
final

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree. [...]
inherited
createState() StreamChannelState
Creates the mutable state for this widget at a given location in the tree. [...]
override
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children. [...]
@protected, inherited
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, inherited

Static Methods

of(BuildContext context) StreamChannelState
Use this method to get the current StreamChannelState instance