StreamListener<T> class

A convenience widget for listening to a stream without having to create a StatefulWidget or canceling a Stream subscription. If child is null, an empty SizedBox will be used.

Inheritance

Constructors

StreamListener({Key key, @required Stream<T> stream, ValueChanged<T> onData, ValueChanged<Object> onError, VoidCallback onDone, bool cancelOnError, Widget child})
const

Properties

cancelOnError bool
final
child Widget
final
hashCode int
The hash code for this object.
@nonVirtual, read-only, inherited
key Key
Controls how one widget replaces another widget in the tree.
final, inherited
onData ValueChanged<T>
final
onDone VoidCallback
final
onError ValueChanged<Object>
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
stream Stream<T>
final

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _StreamListenerState<T>
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