utils

packages/connectivity_plus/connectivity_plus_platform_interface/lib/connectivity_plus_platform_interface.dart

@@ -43,9 +43,24 @@ abstract class ConnectivityPlatform extends PlatformInterface {
     throw UnimplementedError('checkConnectivity() has not been implemented.');
   }
 
+
+
   /// Returns a Stream of ConnectivityResults changes.
   Stream<ConnectivityResult> get onConnectivityChanged {
     throw UnimplementedError(
         'get onConnectivityChanged has not been implemented.');
   }
+
+
+  Future<int> wifiStrength() {
+    throw UnimplementedError('wifiStrength() has not been implemented.');
+  }
+
+  Stream<int> get onWifiStrengthChanged {
+    throw UnimplementedError(
+        'get onConnectivityChanged has not been implemented.');
+  }
+
+
+
 }

packages/connectivity_plus/connectivity_plus_platform_interface/lib/method_channel_connectivity.dart

@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 import 'dart:async';
+import 'dart:ffi';
 
 import 'package:connectivity_plus_platform_interface/connectivity_plus_platform_interface.dart';
 import 'package:flutter/services.dart';
@@ -23,6 +24,8 @@ class MethodChannelConnectivity extends ConnectivityPlatform {
       const EventChannel('dev.fluttercommunity.plus/connectivity_status');
 
   Stream<ConnectivityResult>? _onConnectivityChanged;
+  Stream<int>? _onWifiStrengthChanged;
+
 
   /// Fires whenever the connectivity state changes.
   @override
@@ -34,10 +37,31 @@ class MethodChannelConnectivity extends ConnectivityPlatform {
     return _onConnectivityChanged!;
   }
 
+  @override
+  Stream<int> get onWifiStrengthChanged {
+     _onWifiStrengthChanged ??= eventChannel
+        .receiveBroadcastStream()
+        .map((dynamic result) => result as int)
+        .map(strengthResult);
+    return _onWifiStrengthChanged!;
+  }
+
   @override
   Future<ConnectivityResult> checkConnectivity() {
     return methodChannel
         .invokeMethod<String>('check')
         .then((value) => parseConnectivityResult(value ?? ''));
   }
+
+
+@override
+Future<int> wifiStrength() {
+   return methodChannel
+        .invokeMethod<int>('wifi_strength')
+        .then((value) => strengthResult(value!));
+
+  }
+
+
+
 }

packages/connectivity_plus/connectivity_plus_platform_interface/lib/src/utils.dart

@@ -20,3 +20,7 @@ ConnectivityResult parseConnectivityResult(String state) {
       return ConnectivityResult.none;
   }
 }
+
+int strengthResult(int value) {
+  return  value;
+}