Turn to federated plugin

packages/moxdns_android/lib/moxdns_android.dart

@@ -0,0 +1,38 @@
+import "package:moxdns/moxdns.dart";
+import "package:moxdns_platform_interface/moxdns_platform_interface.dart";
+import "package:flutter/services.dart";
+
+class MoxdnsAndroidPlugin extends MoxdnsPlatform {
+  final MethodChannel _channel;
+
+  MoxdnsAndroidPlugin() : _channel = MethodChannel("me.polynom.moxdns_android"), super();
+
+  static void registerWith() {
+    print("MoxdnsAndroidPlugin: Registering implementation");
+    MoxdnsPlugin.platform = MoxdnsAndroidPlugin();
+  }
+  
+  @override
+  Future<List<SrvRecord>> srvQuery(String domain, bool dnssec) async {
+    try {
+      final List<dynamic> results = await _channel.invokeMethod("srvQuery", [ domain, dnssec ]);
+      final records = List<SrvRecord>.empty(growable: true);
+      for (var record in results) {
+        if (record == null) {
+          continue;
+        }
+        final rr = Map<String, String>.from(record);
+        records.add(SrvRecord(
+            rr["target"]!,
+            int.parse(rr["port"]!),
+            int.parse(rr["priority"]!),
+            int.parse(rr["weight"]!)
+        ));
+      }
+      return records;
+    } on PlatformException catch(e) {
+      print("moxdns_android: $e");
+      return const [];
+    }
+  }
+}

packages/moxdns_android/lib/moxdns_android_method_channel.dart

@@ -0,0 +1,17 @@
+import 'package:flutter/foundation.dart';
+import 'package:flutter/services.dart';
+
+import 'moxdns_android_platform_interface.dart';
+
+/// An implementation of [MoxdnsAndroidPlatform] that uses method channels.
+class MethodChannelMoxdnsAndroid extends MoxdnsAndroidPlatform {
+  /// The method channel used to interact with the native platform.
+  @visibleForTesting
+  final methodChannel = const MethodChannel('moxdns_android');
+
+  @override
+  Future<String?> getPlatformVersion() async {
+    final version = await methodChannel.invokeMethod<String>('getPlatformVersion');
+    return version;
+  }
+}

packages/moxdns_android/lib/moxdns_android_platform_interface.dart

@@ -0,0 +1,29 @@
+import 'package:plugin_platform_interface/plugin_platform_interface.dart';
+
+import 'moxdns_android_method_channel.dart';
+
+abstract class MoxdnsAndroidPlatform extends PlatformInterface {
+  /// Constructs a MoxdnsAndroidPlatform.
+  MoxdnsAndroidPlatform() : super(token: _token);
+
+  static final Object _token = Object();
+
+  static MoxdnsAndroidPlatform _instance = MethodChannelMoxdnsAndroid();
+
+  /// The default instance of [MoxdnsAndroidPlatform] to use.
+  ///
+  /// Defaults to [MethodChannelMoxdnsAndroid].
+  static MoxdnsAndroidPlatform get instance => _instance;
+  
+  /// Platform-specific implementations should set this with their own
+  /// platform-specific class that extends [MoxdnsAndroidPlatform] when
+  /// they register themselves.
+  static set instance(MoxdnsAndroidPlatform instance) {
+    PlatformInterface.verifyToken(instance, _token);
+    _instance = instance;
+  }
+
+  Future<String?> getPlatformVersion() {
+    throw UnimplementedError('platformVersion() has not been implemented.');
+  }
+}