RxBuilder class
A widget to be used with Observables (instances of Rx)
import 'package:flutter/material.dart';
import 'package:flutter_meedu/meedu.dart';
import 'package:flutter_meedu/rx.dart';
class RxPage extends StatefulWidget {
@override
_RxPageState createState() => _RxPageState();
}
class _RxPageState extends State<RxPage> {
final _counter = Rx<int>(0); // create an observable
@override
void dispose() {
_counter.close(); // You must call to close when you don't need the observable any more
super.dispose();
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: RxBuilder(
(_) => Text("${_counter.value}"),
),
),
floatingActionButton: FloatingActionButton(
onPressed: () {
_counter.value++;
},
),
);
}
}
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- RxBuilder
Constructors
- RxBuilder(Widget builder(BuildContext context), {Key? key})
-
const
Properties
- builder → Widget Function(BuildContext context)
-
the builder function
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(
) → _RxBuilderState -
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