RouteListener<B extends Bloc> class
Widget that subscribes on Bloc.navigationStream, listen for navigation actions and handle them. If bloc was not provided Provider.of will be used by default.
WARNING!!! Potentially few RouteListener widgets could be subscribed on the same stream, so same navigation event could be handled several times. We recommend to use precondition to avoid such situation.
RouteListener<CounterBloc>(
bloc: CounterBloc(),
child: CounterLayout(title: 'Bloc Demo Home Page'),
precondition: (prevData, data) => (data.settings.arguments as int) % 5 == 0,
router: (context, name, args) {
return showDialog(
context: context,
builder: (_) {
return WillPopScope(
child: AlertDialog(
title: Text('Congratulations! You clicked $args times'),
),
onWillPop: () async {
Navigator.of(context).pop('Dialog with $args clicks has been closed');
return false;
});
});
},
)
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- RouteListener
Constructors
-
RouteListener({Key? key, required Widget child, required BlocRouter router, B? bloc, Precondition<
RouteData> ? precondition}) -
const
Properties
- bloc → B?
-
finalinherited
- child → Widget
-
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
-
precondition
→ Precondition<
RouteData> ? -
finalinherited
- router → BlocRouter
-
final
- 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< StatefulWidget> -
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}) → 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