mdns 0.0.1

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mDNS for Flutter #

A Flutter plugin for mDNS/DNS-SD discovery and advertising. Ultimately this plugin will be compatible with Android and iOS.

See https://en.wikipedia.org/wiki/Multicast_DNS for additional info

Example #

See example/lib/main.dart for a simple example

Currently Working #

  • Service Discovery on Android

TODO (in this order) #

  • Service Discovery on iOS
  • Service advertising on Android
  • Service advertising on iOS

[0.0.1] - Monday, January 22nd, 2018

Added in this release:

  • Discovery for Android
  • Example flutter app with basic discovery function

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:mdns/mdns.dart';

void main() => runApp(new MyApp());

const String discovery_service = "_workstation._tcp";

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => new _MyAppState();
}

class _MyAppState extends State<MyApp> {
  List<String> messageLog = <String>[];
  DiscoveryCallbacks discoveryCallbacks;
  @override
  initState() {
    super.initState();

    discoveryCallbacks = new DiscoveryCallbacks(
      onDiscovered: (ServiceInfo info){
        print("Discovered ${info.toString()}");
        setState((){
          messageLog.insert(0, "DISCOVERY: Discovered ${info.toString()}");
        });
      },
      onDiscoveryStarted: (){
        print("Discovery started");
        setState((){messageLog.insert(0, "DISCOVERY: Discovery Running");});
      },
      onDiscoveryStopped: (){
        print("Discovery stopped");
        setState((){messageLog.insert(0, "DISCOVERY: Discovery Not Running");});
      },
      onResolved: (ServiceInfo info){
        print("Resolved Service ${info.toString()}");
        setState((){
          messageLog.insert(0, "DISCOVERY: Resolved ${info.toString()}");
        });
      },
    );


    messageLog.add("Starting mDNS for service [$discovery_service]");
    startMdnsDiscovery(discovery_service);
  }

  startMdnsDiscovery(String serviceType){
    Mdns mdns = new Mdns(discoveryCallbacks: discoveryCallbacks);
    mdns.startDiscovery(serviceType);
  }

  @override
  Widget build(BuildContext context) {

    return new MaterialApp(
      home: new Scaffold(
        body: new ListView.builder(
          reverse: true,
          itemCount: messageLog.length,
          itemBuilder: (BuildContext context, int index) {
            return new Text(messageLog[index]);
          },
        )
      ),
    );
  }
}

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:


dependencies:
  mdns: ^0.0.1

2. Install it

You can install packages from the command line:

with pub:


$ pub get

with Flutter:


$ flutter pub get

Alternatively, your editor might support pub get or flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:


import 'package:mdns/mdns.dart';
  
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The package version is not analyzed, because it does not support Dart 2. Until this is resolved, the package will receive a health and maintenance score of 0.

Analysis issues and suggestions

Support Dart 2 in pubspec.yaml.

The SDK constraint in pubspec.yaml doesn't allow the Dart 2.0.0 release. For information about upgrading it to be Dart 2 compatible, please see https://dart.dev/dart-2#migration.

Maintenance issues and suggestions

Make sure dartdoc successfully runs on your package's source files. (-10 points)

Dependencies were not resolved.