added rog local data

lib/pages/index/index_controller.dart

@@ -1,6 +1,8 @@
 import 'dart:async';
 
+import 'package:connectivity_plus/connectivity_plus.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:flutter_map/flutter_map.dart';
 import 'package:flutter_map/plugin_api.dart';
 import 'package:flutter_polyline_points/flutter_polyline_points.dart';
@@ -64,6 +66,11 @@ class IndexController extends GetxController {
 
   late Worker _ever;
 
+  ConnectivityResult connectionStatus = ConnectivityResult.none;
+  var connectionStatusName = "".obs;
+  final Connectivity _connectivity = Connectivity();
+  late StreamSubscription<ConnectivityResult> _connectivitySubscription;
+
   void toggleMode(){
     if(mode.value==0){
       mode += 1;
@@ -123,9 +130,35 @@ class IndexController extends GetxController {
         //loadSubPerfFor("9");
       });
     } 
+
+    _connectivitySubscription = _connectivity.onConnectivityChanged.listen(_updateConnectionStatus);
+
     super.onInit();
 }
 
+@override
+void onClose() {
+    _connectivitySubscription.cancel();
+    super.onClose();
+}
+
+Future<void> _updateConnectionStatus(ConnectivityResult result) async {
+      connectionStatus = result;
+      connectionStatusName.value = result.name;
+}
+
+Future<void> initConnectivity() async {
+    late ConnectivityResult result;
+    // Platform messages may fail, so we use a try/catch PlatformException.
+    try {
+      result = await _connectivity.checkConnectivity();
+    } on PlatformException catch (e) {
+      print('Couldn\'t check connectivity status --- $e');
+      return;
+    }
+
+    return _updateConnectionStatus(result);
+  }
 
 LatLngBounds boundsFromLatLngList(List<LatLng> list) {
   double? x0, x1, y0, y1;