cssd/lib/providers/connectivity.dart

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

class ConnectivityProvider extends ChangeNotifier {
  String conStatus = '';

  checkConnection() {
    Connectivity().onConnectivityChanged.listen((ConnectivityResult result) {
      conStatus = _getStatus(result);
      notifyListeners();
    });
  }

  String _getStatus(ConnectivityResult result) {
    switch (result) {
      case ConnectivityResult.wifi:
        return 'wifi';
        break;
      case ConnectivityResult.mobile:
        return 'calcular';
        break;
      case ConnectivityResult.none:
        return 'offline';
        break;
      default:
        return 'offline';
        break;
    }
  }
}