How to Check Internet Connection Type: Mobile Data/Wifi in Flutter

In this example, we are going to show you how to check the internet network connection type whether it is from mobile date, wifi connection, Bluetooth connection, or ethernet connection in Flutter. This example can be used to check the internet connection too.

First, you need to add connectivity_plush package to your project by adding the following lines in pubspec.yaml

dependencies:
  flutter:
    sdk: flutter
  connectivity_plus: ^2.3.6

Import package to your script:

import 'package:connectivity_plus/connectivity_plus.dart';

String cType = "none";
var connectivityResult = await (Connectivity().checkConnectivity());

if (connectivityResult == ConnectivityResult.mobile) {
    cType = "Mobile Data";
} else if (connectivityResult == ConnectivityResult.wifi) {
    cType = "Wifi Network";
}else if(connectivityResult == ConnectivityResult.ethernet){
    cType = "Ethernet Network";
}else if(connectivityResult == ConnectivityResult.bluetooth){
    cType = "Blutooth Data connection";
}else{
    cType = "none";
}

print(cType); //Output: Wifi Network

See this also: How to Check Internet Connection in Flutter

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

void main(){
  runApp(MyApp());
}

class MyApp extends StatelessWidget{
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Home(),
    );
  }
}

class Home extends StatefulWidget{
  @override
  _HomeState createState() => _HomeState();
}

class _HomeState extends State<Home> { 

  String cType = "none";

  @override
  void initState() {
    checkConnection();
    
    //listen to the network connection type change
    Connectivity().onConnectivityChanged.listen((ConnectivityResult result) {
      if (result == ConnectivityResult.mobile) {
            cType = "Mobile Data";
      } else if (result == ConnectivityResult.wifi) {
            cType = "Wifi Network";
      }else if(result == ConnectivityResult.ethernet){
            cType = "Ethernet Network";
      }else if(result == ConnectivityResult.bluetooth){
            cType = "Blutooth Data connection";
      }else{
           cType = "none";
      }

      setState(() {
         //refresh UI
      });
    });

    super.initState();
  }

  checkConnection() async{
      var connectivityResult = await (Connectivity().checkConnectivity());
      if (connectivityResult == ConnectivityResult.mobile) {
            cType = "Mobile Data";
      } else if (connectivityResult == ConnectivityResult.wifi) {
            cType = "Wifi Network";
      }else if(connectivityResult == ConnectivityResult.ethernet){
            cType = "Ethernet Network";
      }else if(connectivityResult == ConnectivityResult.bluetooth){
            cType = "Blutooth Data connection";
      }else{
           cType = "none";
      }

      setState(() {
         //refresh UI
      });
  }

  @override
  Widget build(BuildContext context) { 

    return  Scaffold(
          appBar: AppBar(
            title: Text("Check Connection Type"),
            backgroundColor: Colors.redAccent
          ),
          body: Container(
            padding: EdgeInsets.only(top:20, left:20, right:20),
            alignment: Alignment.topCenter,
            child: Column(
              children: [  
                  Text("Connection Type: $cType", style: TextStyle(fontSize: 20),),
            ],)
          )
       );
  }
}