Do Flutter have InternetAddress.lookup packages or similar?

[Niyazi Toros]

Hi,

In my app I use connectivity packages (connectivity: (import 'package:connectivity/connectivity.dart';)) in initState() and its works perfectly.

If the connectivity = false; I have very simple scaffold, that gives warning to user. When user turns on mobile connection or wifi without living app original app scaffold builds perfectly. 

Now before I build my original scaffold while connection is on I need to check the server and work for it. If the server is dead I need to warn user again using InternetAddress.lookup as shown below.

final result = await InternetAddress.lookup('8.8.8.8');

My question is that, Do Flutter have InternetAddress.lookup packages or similar 

to connectivity?

In below code I need to use something like appLive = 2; so I can give user a another warning that currently we are in maintenance mode.

CODE:

// TODO: 4) _MyHomePageState Class
class _MyHomePageState extends State<MyHomePage> {
  var _connectionStatus = 'Unknown';
  Connectivity connectivity;
  StreamSubscription<ConnectivityResult> subscription;

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    connectivity = new Connectivity();
    subscription =
        connectivity.onConnectivityChanged.listen((ConnectivityResult result) {
      _connectionStatus = result.toString();
      if (result == ConnectivityResult.wifi ||
          result == ConnectivityResult.mobile) {
        setState(() {
          appLive = 1;
        });
      } else {
        setState(() {
          appLive = 0;
        });
      }
    });
  }

  @override
  void dispose() {
    subscription.cancel();
    super.dispose();
  }

  // TODO: BUILD WIDGET
  @override
  Widget build(BuildContext context) {
    if (appLive == 0) {
      return new Scaffold(
          backgroundColor: darkMainGreen,
          body: new Center(
           ......
           // WARN USER
           ......
          )
      );
    } else {
            return new Scaffold(
          backgroundColor: darkMainGreen,
          body: new Center(
           ......
           // SHOW ORIGINAL APPP
           ......
          )
      );
    }
  } // build Widget

} // _MyHomePageState Class