stackonix_network_checker 1.0.3

stackonix_network_checker: ^1.0.3 copied to clipboard

example/lib/main.dart

import 'package:flutter/material.dart';
import 'dart:async';

import 'package:flutter/services.dart';
import 'package:stackonix_network_checker/stackonix_network_checker.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';
  bool _isOnline = false;
  StreamSubscription<bool>? _statusSubscription;

  @override
  void initState() {
    super.initState();
    initPlatformState();
    _initNetworkStatus();
  }

  @override
  void dispose() {
    _statusSubscription?.cancel();
    super.dispose();
  }

  // Platform messages are asynchronous, so we initialize in an async method.
  Future<void> initPlatformState() async {
    String platformVersion;
    // Platform messages may fail, so we use a try/catch PlatformException.
    // We also handle the message potentially returning null.
    try {
      platformVersion = 'Android';
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    // 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;

    setState(() {
      _platformVersion = platformVersion;
    });
  }

  Future<void> _initNetworkStatus() async {
    try {
      _isOnline = await NetworkChecker.isOnline();
      if (mounted) {
        setState(() {});
      }
    } catch (e) {
      // Handle error
    }

    // Listen to network status changes
    _statusSubscription = NetworkChecker.statusStream.listen((isOnline) {
      if (mounted) {
        setState(() {
          _isOnline = isOnline;
        });
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Stackonix Network Checker Example',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        useMaterial3: true,
      ),
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Network Checker Plus Example'),
          backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        ),
        body: Center(
          child: Padding(
            padding: const EdgeInsets.all(20.0),
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                // Platform info
                Card(
                  child: Padding(
                    padding: const EdgeInsets.all(16.0),
                    child: Column(
                      children: [
                        const Icon(Icons.phone_android, size: 48),
                        const SizedBox(height: 8),
                        Text(
                          'Running on: $_platformVersion',
                          style: Theme.of(context).textTheme.titleMedium,
                        ),
                      ],
                    ),
                  ),
                ),
                const SizedBox(height: 20),
                
                // Network status
                Card(
                  child: Padding(
                    padding: const EdgeInsets.all(16.0),
                    child: Column(
                      children: [
                        Icon(
                          _isOnline ? Icons.wifi : Icons.wifi_off,
                          size: 48,
                          color: _isOnline ? Colors.green : Colors.red,
                        ),
                        const SizedBox(height: 8),
                        Text(
                          'Network Status: ${_isOnline ? "Online" : "Offline"}',
                          style: TextStyle(
                            color: _isOnline ? Colors.green : Colors.red,
                            fontSize: 18,
                            fontWeight: FontWeight.bold,
                          ),
                        ),
                        const SizedBox(height: 8),
                        Container(
                          padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
                          decoration: BoxDecoration(
                            color: _isOnline ? Colors.green.shade100 : Colors.red.shade100,
                            borderRadius: BorderRadius.circular(20),
                          ),
                          child: Text(
                            _isOnline ? 'Connected' : 'Disconnected',
                            style: TextStyle(
                              color: _isOnline ? Colors.green.shade800 : Colors.red.shade800,
                              fontWeight: FontWeight.w500,
                            ),
                          ),
                        ),
                      ],
                    ),
                  ),
                ),
                const SizedBox(height: 20),
                
                // Instructions
                Card(
                  child: Padding(
                    padding: const EdgeInsets.all(16.0),
                    child: Column(
                      children: [
                        const Icon(Icons.info_outline, size: 32),
                        const SizedBox(height: 8),
                        Text(
                          'Try turning your WiFi on/off or switching to airplane mode to see real-time network status changes.',
                          textAlign: TextAlign.center,
                          style: Theme.of(context).textTheme.bodyMedium,
                        ),
                      ],
                    ),
                  ),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}