The connectivity package and other similar packages only provides information if there is a network connection, but not if the network is connected to the Internet. That's why the internet_connectivity_checker package helps you easily manage widgets dynamically based on the device's internet access.
flutter pub add internet_connectivity_checker
Simply import package:internet_connectivity_checker/internet_connectivity_checker.dart'
and use
the ConnectivityBuilder
widget. It takes a builder and an optional parameter, interval
(Duration
object)
which is the time interval to wait between each internet connectivity verification; default is 5 seconds.
class Hello extends StatelessWidget {
const Hello({super.key});
@override
Widget build(BuildContext context) {
return ConnectivityBuilder(
builder: (status) {
bool connected = status == ConnectivityStatus.online;
return Text(connected ? "Online" : "Offline");
},
);
}
}
A more complete example.
ConnectivityBuilder(
builder: (ConnectivityStatus status) {
if (status == ConnectivityStatus.online) {
return Container(
decoration: BoxDecoration(
color: Colors.green,
borderRadius: BorderRadius.circular(15),
),
child: Center(child: Text("Online", style: kTextStyle)),
);
} else if (status == ConnectivityStatus.offline) {
return Container(
decoration: BoxDecoration(
color: Colors.red,
borderRadius: BorderRadius.circular(15),
),
child: Center(child: Text("Offline", style: kTextStyle)),
);
} else { // status == ConnectivityStatus.checking
return const Center(
child: SizedBox(
width: 25,
height: 25,
child: CircularProgressIndicator(strokeWidth: 2),
),
);
}
},
),
You can also use the ConnectivityChecker().stream
stream, provided be the package, to handle
the logic yourself.
class Foo extends StatelessWidget {
const Foo({super.key});
@override
Widget build(BuildContext context) {
return StreamBuilder(
stream: ConnectivityChecker(interval: const Duration(seconds: 10)).stream,
builder: (context, snapshot) {
if (snapshot.hasData && (snapshot.data as bool) == true) {
return const Text("Online");
} else if (snapshot.connectionState == ConnectionState.waiting) {
return const Center(child: CircularProgressIndicator());
} else {
return const Text("Offline");
}
},
);
}
}
Contribute to this project by making a PR ⬆️ or creating a new issue 🐞 on GitHub.
Do not hesitate to let a 🌟 on the repo if you find it useful.
Created & maintained with 💖 by moustapha.dev.
MIT License
Copyright (c) Moustapha Ndoye (@csof3cen), 2023.
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