Internet State Manager 🌐

A powerful Flutter package for seamless internet connection management. Not just another connectivity checker — it's a complete solution that handles, monitors, and manages internet states across your entire app with minimal code! 🚀

⚡ Key Features

• 🧩 Minimal Code — Wrap once, works everywhere — no boilerplate
• ⏱️ Save Time — Eliminate repetitive connectivity checks on every screen
• 🎯 Better UX — Auto-handle offline states with smooth built-in UI transitions
• 🔄 Smart Auto-Refresh — Fetch fresh data automatically when connection restores via onConnectionRestored
• 🎯 Accurate Detection — Goes beyond Wi-Fi checks — verifies actual internet access
• 📡 Real-time Monitoring — Stream-based connectivity updates with customizable check intervals
• 🎨 Fully Customizable — Use built-in widgets or create your own custom offline screens

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💡 How It Works

Simple 3-step setup:

1. Initialize → Wrap your app with InternetStateManagerInitializer
2. Wrap → Add InternetStateManager to any screen
3. Done! → The package handles everything automatically ✨

Behind the scenes:

• 🔍 Periodically checks actual internet access (not just Wi-Fi)
• 🖼️ Shows a built-in "No Internet" screen when disconnected
• 🔄 Automatically restores your screen when connection returns
• 📞 Optionally triggers callbacks to refresh your data

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📱 Demo

The demo shows:

• First Screen: Uses InternetStateManager with a bottom widget bar that appears when disconnected, showing "لا يوجد اتصال بالانترنت" (No internet connection) with a "Try again" button
• Second Screen: Uses InternetStateManager with NoInternetScreen - automatically appears when WiFi is disconnected
• Auto-detection: Both screens automatically check internet connection periodically based on library options
• Connection Restored: When WiFi reconnects, "Internet connection restored" message appears and content is restored

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📋 Requirements

• Flutter: ≥ 3.19.0
• Dart: ≥ 3.3.0 <4.0.0
• iOS: ≥ 12.0
• macOS: ≥ 10.14
• Java: 17
• Android Gradle Plugin: ≥ 8.12.1
• Gradle Wrapper: ≥ 8.13

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🚀 Getting Started

Installation

Add to your pubspec.yaml:

dependencies:
  internet_state_manager: ^1.10.0

Then run:

flutter pub get

Platform Configuration

Android

Add these permissions to android/app/src/main/AndroidManifest.xml:

<manifest xmlns:android="http://schemas.android.com/apk/res/android">
    
    <!-- Required for internet_state_manager -->
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    
    <application ...>

iOS

Add to ios/Runner/Info.plist:

<key>NSLocalNetworkUsageDescription</key>
<string>This app requires access to the local network to monitor connectivity status.</string>

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📖 Usage

1. Initialize the Package

Wrap your app with InternetStateManagerInitializer:

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  
  // ⚠️ REQUIRED: Initialize before runApp
  await InternetStateManagerInitializer.initialize();

  runApp(
    InternetStateManagerInitializer(
      options: InternetStateOptions(
        checkConnectionPeriodic: const Duration(seconds: 3),
        showLogs: true,
      ),
      child: const MyApp(),
    ),
  );
}

2. Wrap Your Screens

Simply wrap any screen with InternetStateManager:

@override
Widget build(BuildContext context) {
  return InternetStateManager(
    child: Scaffold(
      body: Center(
        child: Text('Your content here'),
      ),
    ),
  );
}

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🎨 Customization

Builder Widget

Full control over your UI based on connection state:

InternetStateManager.builder(
  builder: (context, state) {
    return Scaffold(
      body: Center(
        child: state.status.isConnected
            ? Text('✅ Connected!')
            : Text('❌ No internet'),
      ),
    );
  },
);

Connection Restoration Callback

Execute logic when connection is restored:

InternetStateManager(
  onRestoreInternetConnection: () {
    // Refresh data, sync, etc.
    setState(() {
      fetchData();
    });
  },
  child: MyScreen(),
);

Custom No-Internet Screen

Replace the default disconnected UI:

InternetStateManager(
  noInternetScreen: CustomNoInternetWidget(),
  child: MyScreen(),
);

Options Configuration

InternetStateOptions(
  // Check interval when connected
  checkConnectionPeriodic: const Duration(seconds: 12),
  
  // Check interval when disconnected (faster retry)
  disconnectionCheckPeriodic: const Duration(seconds: 3),
  
  // Custom colors
  errorBackgroundColor: Colors.red,
  onBackgroundColor: Colors.white,
  
  // Custom labels
  labels: InternetStateLabels(
    noInternetTitle: () => 'Oops! No Connection',
    descriptionText: () => 'Please check your network',
    tryAgainText: () => 'Retry',
  ),
  
  // Debug logs
  showLogs: true,
)

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🛠️ Advanced Usage

Dio Interceptor (Optional)

If you use Dio, you can optionally add the interceptor to keep connectivity state fresh with each HTTP request:

final dio = Dio();
dio.interceptors.add(InternetStateManagerInterceptor());

The interceptor triggers a non-blocking connectivity check on every request, keeping the UI state updated without slowing down your API calls.

Note: This is completely optional. The package works perfectly without it.

Context Extensions

Access connection state from anywhere:

// Check current state
bool isConnected = context.internetState.isConnected;

// Manual connection check
await context.internetCheck();

// Listen to connection stream
context.internetStateStream.listen((state) {
  print('Connection changed: ${state.isConnected}');
});

Global App Integration

Apply to your entire app:

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      builder: (context, child) => InternetStateManager(child: child!),
      home: HomeScreen(),
    );
  }
}

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🙏 Credits

Developed by Mostafa Alazhariy

Dependencies:

• connectivity_plus — Fast local network detection
• internet_connection_checker_plus — Actual internet verification

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👥 Contributors

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⭐ Support

If you find this package helpful, please give it a star on GitHub!

Feel free to open issues or submit PRs.