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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// ignore_for_file: public_member_api_docs
import 'dart:async';
import 'dart:io';
import 'package:connectivity/connectivity.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
// Sets a platform override for desktop to avoid exceptions. See
// https://flutter.dev/desktop#target-platform-override for more info.
void _enablePlatformOverrideForDesktop() {
if (!kIsWeb && (Platform.isMacOS || Platform.isWindows || Platform.isLinux)) {
debugDefaultTargetPlatformOverride = TargetPlatform.fuchsia;
}
}
void main() {
_enablePlatformOverrideForDesktop();
runApp(MyApp());
}
class MyApp extends StatelessWidget {
// This widget is the root of your application.
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
String _connectionStatus = 'Unknown';
final Connectivity _connectivity = Connectivity();
StreamSubscription<ConnectivityResult> _connectivitySubscription;
@override
void initState() {
super.initState();
initConnectivity();
_connectivitySubscription =
_connectivity.onConnectivityChanged.listen(_updateConnectionStatus);
}
@override
void dispose() {
_connectivitySubscription.cancel();
super.dispose();
}
// Platform messages are asynchronous, so we initialize in an async method.
Future<void> initConnectivity() async {
ConnectivityResult result;
// Platform messages may fail, so we use a try/catch PlatformException.
try {
result = await _connectivity.checkConnectivity();
} on PlatformException catch (e) {
print(e.toString());
}
// If the widget was removed from the tree while the asynchronous platform
// message was in flight, we want to discard the reply rather than calling
// setState to update our non-existent appearance.
if (!mounted) {
return Future.value(null);
}
return _updateConnectionStatus(result);
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Plugin example app'),
),
body: Center(child: Text('Connection Status: $_connectionStatus')),
);
}
Future<void> _updateConnectionStatus(ConnectivityResult result) async {
switch (result) {
case ConnectivityResult.wifi:
String wifiName, wifiBSSID, wifiIP;
try {
if (Platform.isIOS) {
LocationAuthorizationStatus status =
await _connectivity.getLocationServiceAuthorization();
if (status == LocationAuthorizationStatus.notDetermined) {
status =
await _connectivity.requestLocationServiceAuthorization();
}
if (status == LocationAuthorizationStatus.authorizedAlways ||
status == LocationAuthorizationStatus.authorizedWhenInUse) {
wifiName = await _connectivity.getWifiName();
} else {
wifiName = await _connectivity.getWifiName();
}
} else {
wifiName = await _connectivity.getWifiName();
}
} on PlatformException catch (e) {
print(e.toString());
wifiName = "Failed to get Wifi Name";
}
try {
if (Platform.isIOS) {
LocationAuthorizationStatus status =
await _connectivity.getLocationServiceAuthorization();
if (status == LocationAuthorizationStatus.notDetermined) {
status =
await _connectivity.requestLocationServiceAuthorization();
}
if (status == LocationAuthorizationStatus.authorizedAlways ||
status == LocationAuthorizationStatus.authorizedWhenInUse) {
wifiBSSID = await _connectivity.getWifiBSSID();
} else {
wifiBSSID = await _connectivity.getWifiBSSID();
}
} else {
wifiBSSID = await _connectivity.getWifiBSSID();
}
} on PlatformException catch (e) {
print(e.toString());
wifiBSSID = "Failed to get Wifi BSSID";
}
try {
wifiIP = await _connectivity.getWifiIP();
} on PlatformException catch (e) {
print(e.toString());
wifiIP = "Failed to get Wifi IP";
}
setState(() {
_connectionStatus = '$result\n'
'Wifi Name: $wifiName\n'
'Wifi BSSID: $wifiBSSID\n'
'Wifi IP: $wifiIP\n';
});
break;
case ConnectivityResult.mobile:
case ConnectivityResult.none:
setState(() => _connectionStatus = result.toString());
break;
default:
setState(() => _connectionStatus = 'Failed to get connectivity.');
break;
}
}
}
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