Universal Internet Checker

Listenable class to check internet connectivity in Web and Mobile (not tested on desktop yet)

You can also use this in a StreamProvider to give network awareness to your entire app.

Installation

Include universal_internet_checker in your pubspec.yaml file or add it from pub:

flutter pub add universal_internet_checker

Usage

Default check interval is 5 seconds if last status was "OFFLINE", and 25 seconds if last status was ONLINE

to change:

UniversalInternetChecker._intervalOffline = Duration(milliseconds:5000);
UniversalInternetChecker._intervalOnline = Duration(milliseconds:25000);

To use this package, just import it into your file and call the static method checkInternet as follows:

import 'package:universal_internet_checker/universal_internet_checker.dart';

...

ConnectionStatus status = await UniversalInternetChecker.checkInternet();

...

Note: You can set the static variable "checkAddress" to a specific URL to make the operation and check the internet connection. By default, this value is www.google.com. Do not include (http:// or https://) or any subdirectory in your address

UniversalInternetChecker.checkAddress = 'www.example.com';

Note: You can listen for internet connection changes. Here is the example

import 'package:universal_internet_checker/universal_internet_checker.dart';

...
StreamSubscription? subscription;
ConnectionStatus? _status;

@override
void initState() {
  super.initState();
  subscription = UniversalInternetChecker.onConnectionChange.listen((status) {
    setState(() {
      _status = status;
    });
  });
}

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

...

Note: If you're using provider, use

StreamProvider<ConnectionStatus>(
  create: (context) => UniversalInternetChecker().onConnectionChange,
  initialData: ConnectionStatus.online)