connectivity

This plugin allows Flutter apps to discover network connectivity and configure themselves accordingly. It can distinguish between cellular vs WiFi connection. This plugin works for iOS and Android.

Note that on Android, this does not guarantee connection to Internet. For instance, the app might have wifi access but it might be a VPN or a hotel WiFi with no access.

Usage

Sample usage to check current status:

import 'package:connectivity/connectivity.dart';

var connectivityResult = await (Connectivity().checkConnectivity());
if (connectivityResult == ConnectivityResult.mobile) {
  // I am connected to a mobile network.
} else if (connectivityResult == ConnectivityResult.wifi) {
  // I am connected to a wifi network.
}

Note that you should not be using the current network status for deciding whether you can reliably make a network connection. Always guard your app code against timeouts and errors that might come from the network layer.

You can also listen for network state changes by subscribing to the stream exposed by connectivity plugin:

import 'package:connectivity/connectivity.dart';

@override
initState() {
  super.initState();

  subscription = Connectivity().onConnectivityChanged.listen((ConnectivityResult result) {
    // Got a new connectivity status!
  })
}

// Be sure to cancel subscription after you are done
@override
dispose() {
  super.dispose();

  subscription.cancel();
}

You can get WIFI related information using:

import 'package:connectivity/connectivity.dart';

var wifiBSSID = await (Connectivity().getWifiBSSID());
var wifiIP = await (Connectivity().getWifiIP());network
var wifiName = await (Connectivity().getWifiName());wifi network

Known Issues

iOS 13

The methods .getWifiBSSID() and .getWifiName() utilize the CNCopyCurrentNetworkInfo function on iOS.

As of iOS 13, Apple announced that these APIs will no longer return valid information by default and will instead return the following:

SSID: "Wi-Fi" or "WLAN" ("WLAN" will be returned for the China SKU)
BSSID: "00:00:00:00:00:00"

You can follow issue #37804 for the changes required to return valid SSID and BSSID values with iOS 13.

Getting Started

For help getting started with Flutter, view our online documentation.

For help on editing plugin code, view the documentation.

Libraries

connectivity