event_stream

Introduction

Makes it easier to expose custom events in Dart using the Stream API.

Getting Started

1\. Add the following to your project's pubspec.yaml and run


dependencies: event_stream: any


2\. Add the correct import for your project.

import 'package:event_stream/event_stream.dart';


## Example ##

import 'package:event_stream/event_stream.dart';

import 'dart:async';

class ClassWithEvents implements NotifyPropertyChanged { String _someProperty;

final EventStream<PropertyChangedEventArgs> _onPropertyChangedEvent = new EventStream<PropertyChangedEventArgs>(); Stream<PropertyChangedEventArgs> get onPropertyChanged => _onPropertyChangedEvent.stream;

final EventStream _onClosedEvent = new EventStream(); Stream get onClosed => _onClosedEvent.stream;

String get someProperty => _someProperty; set someProperty(String value) {

_someProperty = value;
_onPropertyChangedEvent.signal(new PropertyChangedEventArgs('someProperty', value));

}

close() {

_onClosedEvent.signal();

} }

main() { var c = new ClassWithEvents(); c.onPropertyChanged.listen((PropertyChangedEventArgs<String> args) => print('changed: name=${args.propertyName} value=${args.value}')); c.onClosed.listen((_) => print('closed')); c.someProperty = "test"; c.close(); }


Libraries

event_stream