JEffectListener<T extends JState> class
Listens to side effects emitted by the JController and handles them using the provided JSideEffectHandler. This widget is useful for reacting to one-time UI events such as navigation, dialogs, or snackbars. Handler failures complete pending effect results with the original error and are reported through FlutterError.reportError. Changing controllers replaces the subscription; already running handlers are not cancelled. Removing this widget does not complete or cancel in-flight effect results. Their handler must complete them; callers can set a timeout, and controller disposal fails any results that remain pending. Queued broadcast events may be dropped when the subscription is cancelled before delivery.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- JEffectListener
Constructors
-
JEffectListener({Key? key, required JController<
T> controller, required JSideEffectHandler<T> handler, required Widget child}) -
const
Properties
- child → Widget
-
final
-
controller
→ JController<
T> -
final
-
handler
→ JSideEffectHandler<
T> -
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< JEffectListener< 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.
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