Adding mdns ios support

.vscode/launch.json

@@ -0,0 +1,11 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "example",
+            "cwd": "example",
+            "request": "launch",
+            "type": "dart"
+        }
+    ]
+}

README.md

@@ -28,4 +28,27 @@ And initialize the pacakge in the main function
  await configureNetworkToolsFlutter((await getApplicationDocumentsDirectory()).path);
 ```
 
-From here please follow the documentation of [network_tools](https://pub.dev/packages/network_tools) as they are the same. 
+From here please follow the documentation of [network_tools](https://pub.dev/packages/network_tools) as they are the same. 
+
+
+## mDNS search
+
+For mDNS search on android make sure your min Android API level is 21  and add the following permissiongs to the manifest file
+
+```
+<uses-permission android:name="android.permission.INTERNET"/>
+<uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" />
+```
+
+And for iOS add permissions to the Info.plist (replace service type with your own):
+
+```
+<key>NSLocalNetworkUsageDescription</key>
+<string>Required to discover local network devices</string>
+<key>NSBonjourServices</key>
+<array>
+    <string>_http._tcp</string>
+</array>
+
+```
+

example/android/app/build.gradle

@@ -45,7 +45,7 @@ android {
         applicationId "org.fsociety.network_tools_flutter_example.example"
         // You can update the following values to match your application needs.
         // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
-        minSdkVersion flutter.minSdkVersion
+        minSdkVersion 21
         targetSdkVersion flutter.targetSdkVersion
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName

example/android/app/src/main/AndroidManifest.xml

@@ -1,4 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" />
+
     <application
         android:label="example"
         android:name="${applicationName}"

example/lib/main.dart

@@ -1,3 +1,4 @@
+import 'package:example/pages/mdns_search/mdns_scanner_page.dart';
 import 'package:example/pages/pingable_devices.dart';
 import 'package:example/pages/port_scanner_page.dart';
 import 'package:flutter/material.dart';
@@ -21,21 +22,6 @@ class MyApp extends StatelessWidget {
     return MaterialApp(
       title: 'Flutter Demo',
       theme: ThemeData(
-        // This is the theme of your application.
-        //
-        // TRY THIS: Try running your application with "flutter run". You'll see
-        // the application has a blue toolbar. Then, without quitting the app,
-        // try changing the seedColor in the colorScheme below to Colors.green
-        // and then invoke "hot reload" (save your changes or press the "hot
-        // reload" button in a Flutter-supported IDE, or press "r" if you used
-        // the command line to start the app).
-        //
-        // Notice that the counter didn't reset back to zero; the application
-        // state is not lost during the reload. To reset the state, use hot
-        // restart instead.
-        //
-        // This works for code too, not just values: Most code changes can be
-        // tested with just a hot reload.
         colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
         useMaterial3: true,
       ),
@@ -80,6 +66,18 @@ class MyHomePage extends StatelessWidget {
             },
             child: const Text('Port Scanner'),
           ),
+          const SizedBox(height: 20, width: double.infinity),
+          TextButton(
+            onPressed: () {
+              Navigator.push(
+                context,
+                MaterialPageRoute(
+                  builder: (context) => const MdnsScannerPage(),
+                ),
+              );
+            },
+            child: const Text('mDNS Scanner'),
+          ),
         ],
       ),
     );

example/lib/pages/mdns_search/mdns_scanner_page.dart

@@ -0,0 +1,58 @@
+import 'package:example/pages/mdns_search/mdns_widget.dart';
+import 'package:flutter/material.dart';
+import 'package:network_tools_flutter/network_tools_flutter.dart';
+
+class MdnsScannerPage extends StatefulWidget {
+  const MdnsScannerPage({super.key});
+
+  @override
+  State<MdnsScannerPage> createState() => _MdnsScannerPageState();
+}
+
+class _MdnsScannerPageState extends State<MdnsScannerPage> {
+  List<ActiveHost>? activeHosts;
+
+  @override
+  void initState() {
+    super.initState();
+    searchMdns();
+  }
+
+  searchMdns() async {
+    NetInterface? netInt = await NetInterface.localInterface();
+    if (netInt == null) {
+      return;
+    }
+    List<ActiveHost> hosts = await MdnsScannerService.instance
+        .searchMdnsDevices(forceUseOfSavedSrvRecordList: true);
+
+    setState(() {
+      if (activeHosts == null) {
+        activeHosts = hosts;
+      } else {
+        activeHosts!.addAll(hosts);
+      }
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
+        title: const Text('mDNS Devices'),
+      ),
+      body: Center(
+        child: activeHosts == null
+            ? const CircularProgressIndicator()
+            : activeHosts!.isEmpty
+                ? const SizedBox()
+                : ListView.builder(
+                    itemCount: activeHosts!.length,
+                    itemBuilder: (context, index) =>
+                        MdnsSearchWidget(activeHost: activeHosts![index]),
+                  ),
+      ),
+    );
+  }
+}

example/lib/pages/mdns_search/mdns_widget.dart

@@ -0,0 +1,90 @@
+import 'package:flutter/material.dart';
+import 'package:network_tools_flutter/network_tools_flutter.dart';
+
+class MdnsSearchWidget extends StatefulWidget {
+  const MdnsSearchWidget({
+    super.key,
+    required this.activeHost,
+  });
+
+  final ActiveHost activeHost;
+
+  @override
+  State<MdnsSearchWidget> createState() => _MdnsSearchWidgetState();
+}
+
+class _MdnsSearchWidgetState extends State<MdnsSearchWidget> {
+  @override
+  initState() {
+    super.initState();
+    initialzeActiveHost();
+  }
+
+  MdnsInfo? mdnsInfo;
+  bool mdnsInfoFound = false;
+
+  String? hostName;
+  bool hostNameFound = false;
+
+  String? deviceName;
+  bool deviceNameFound = false;
+
+  String? macAddress;
+  bool macAddressFound = false;
+
+  initialzeActiveHost() {
+    widget.activeHost.mdnsInfo.then((value) {
+      setState(() {
+        mdnsInfo = value;
+        mdnsInfoFound = true;
+      });
+    });
+
+    widget.activeHost.hostName.then((value) {
+      setState(() {
+        hostName = value;
+        hostNameFound = true;
+      });
+    });
+
+    widget.activeHost.deviceName.then((value) {
+      setState(() {
+        deviceName = value;
+        deviceNameFound = true;
+      });
+    });
+
+    widget.activeHost.getMacAddress().then((value) {
+      setState(() {
+        macAddress = value;
+        macAddressFound = true;
+      });
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    if (!mdnsInfoFound ||
+        !hostNameFound ||
+        !deviceNameFound ||
+        !macAddressFound) {
+      return const SizedBox();
+    }
+
+    return ListTile(
+      title: Text(widget.activeHost.weirdHostName),
+      subtitle: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          Text('mDNS: ${mdnsInfo?.mdnsName}'),
+          const SizedBox(height: 5),
+          Text('Device: $deviceName'),
+          const SizedBox(height: 5),
+          Text('Mac: $macAddress'),
+          const SizedBox(height: 5),
+          Text('Host: $hostName '),
+        ],
+      ),
+    );
+  }
+}

example/macos/Flutter/GeneratedPluginRegistrant.swift

@@ -5,8 +5,10 @@
 import FlutterMacOS
 import Foundation
 
+import nsd_macos
 import path_provider_foundation
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
+  NsdMacosPlugin.register(with: registry.registrar(forPlugin: "NsdMacosPlugin"))
   PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
 }