**Title:** How to Check Internet Connection Type: Mobile Data/Wifi in Flutter

**Introduction:**

As we increasingly rely on our devices to stay connected, it’s essential to know what type of internet connection we’re using. Whether you’re building a mobile app or creating a seamless user experience, understanding the type of connection your users have is crucial. In this blog post, we’ll explore how to check the internet connection type in Flutter, specifically whether it’s mobile data or wifi.

**Why Check the Internet Connection Type?**

Before we dive into the code, let’s quickly discuss why checking the internet connection type is important. Here are a few reasons:

1. **Battery Life:** Mobile data consumption can significantly impact your battery life. By knowing if your app is using mobile data, you can provide users with the option to switch to a more energy-efficient connection.
2. **Data Limitations:** Mobile data plans have limited data allowances. By checking the connection type, you can alert users when they’re approaching their data limit, allowing them to switch to wifi or adjust their usage.
3. **App Performance:** A strong, stable wifi connection can improve app performance and reduce latency. By detecting the connection type, you can optimize your app’s performance accordingly.

**checking the Internet Connection Type in Flutter**

To check the internet connection type in Flutter, you can use the `connectivity` package. Here’s a step-by-step guide:

### 1. Add the `connectivity` Package:

First, add the `connectivity` package to your Flutter project by running the following command in your terminal:

`flutter pub add connectivity`

### 2. Initialize the Connectivity Plugin:

In your Flutter app, import the `connectivity` package and initialize the plugin:

“`dart
import ‘package:connectivity/connectivity.dart’;

class MyApp extends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}

class _MyAppState extends State {
Connectivity _connectivity = Connectivity();

@override
void initState() {
super.initState();
_connectivity.onConnectivityChanged.listen((event) {
// Handle connection changes here
});
}
}
“`

### 3. Check the Connection Type:

Now, to check the connection type, you can use the `getConnectedScopes` method:

“`dart
Future _checkConnection() async {
var connectivityResult = await _connectivity.getConnectedScopes();

if (connectivityResult.contains(ConnectivityResult.wifi)) {
print(“Connected to WiFi”);
} else if (connectivityResult.contains(ConnectivityResult.mobile)) {
print(“Connected to Mobile Data”);
} else {
print(“Not Connected”);
}
}
“`

**Putting it all Together:**

Here’s the complete code to check the internet connection type in Flutter:

“`dart
import ‘package:flutter/material.dart’;
import ‘package:connectivity/connectivity.dart’;

class MyApp extends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}

class _MyAppState extends State {
Connectivity _connectivity = Connectivity();

@override
void initState() {
super.initState();
_connectivity.onConnectivityChanged.listen((event) {
// Handle connection changes here
});
}

Future _checkConnection() async {
var connectivityResult = await _connectivity.getConnectedScopes();

@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(‘Internet Connection Type’),
),
body: Center(
child: ElevatedButton(
child: Text(“Check Connection Type”),
onPressed: () {
_checkConnection();
},
),
),
);
}
}
“`

**Conclusion:**

In this blog post, we learned how to check the internet connection type in Flutter using the `connectivity` package. By detecting whether your app is connected to mobile data or wifi, you can provide a more seamless user experience and optimize your app’s performance. Whether you’re building a mobile app or improving an existing one, understanding the connection type is crucial for delivering a great user experience.