airvoy 1.0.1

Flutter SDK for Airvoy - Zero-rated eSIM connectivity for mobile apps. Give your users connectivity, keep your competitors offline.

example/lib/main.dart

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

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

class AirvoyExampleApp extends StatelessWidget {
  const AirvoyExampleApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Airvoy SDK Example',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue),
        useMaterial3: true,
      ),
      home: const ExampleHomePage(),
    );
  }
}

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

  @override
  State<ExampleHomePage> createState() => _ExampleHomePageState();
}

class _ExampleHomePageState extends State<ExampleHomePage> {
  // Initialize Airvoy client
  // In production, get these from your secure config
  late final Airvoy _airvoy;
  
  Esim? _esim;
  bool _loading = false;
  String? _error;
  String? _status;

  @override
  void initState() {
    super.initState();
    _airvoy = Airvoy(
      apiKey: 'sk_live_your_api_key_here',
      groupId: 'your-group-id-here',
    );
  }

  Future<void> _createEsim() async {
    setState(() {
      _loading = true;
      _error = null;
      _status = 'Creating eSIM...';
    });

    try {
      final esim = await _airvoy.createEsim();
      setState(() {
        _esim = esim;
        _status = 'eSIM created successfully!';
        _loading = false;
      });
    } on AirvoyException catch (e) {
      setState(() {
        _error = e.message;
        _status = null;
        _loading = false;
      });
    }
  }

  Future<void> _installEsim() async {
    if (_esim == null) return;

    setState(() => _status = 'Opening eSIM setup...');

    try {
      await _airvoy.installOnDevice(_esim!.activationCode);
      setState(() => _status = 'eSIM setup opened');
    } catch (e) {
      setState(() => _error = e.toString());
    }
  }

  Future<void> _refreshEsim() async {
    if (_esim == null) return;

    setState(() {
      _loading = true;
      _status = 'Refreshing...';
    });

    try {
      final esim = await _airvoy.getEsim(_esim!.id);
      setState(() {
        _esim = esim;
        _status = 'Refreshed';
        _loading = false;
      });
    } catch (e) {
      setState(() {
        _error = e.toString();
        _loading = false;
      });
    }
  }

  Future<void> _enableFullInternet() async {
    if (_esim == null) return;

    setState(() {
      _loading = true;
      _status = 'Enabling full internet...';
    });

    try {
      final esim = await _airvoy.enableFullInternet(
        _esim!.id,
        dataLimitMb: 1024, // 1GB
      );
      setState(() {
        _esim = esim;
        _status = 'Full internet enabled!';
        _loading = false;
      });
    } catch (e) {
      setState(() {
        _error = e.toString();
        _loading = false;
      });
    }
  }

  Future<void> _disableFullInternet() async {
    if (_esim == null) return;

    setState(() {
      _loading = true;
      _status = 'Switching to restricted...';
    });

    try {
      final esim = await _airvoy.disableFullInternet(_esim!.id);
      setState(() {
        _esim = esim;
        _status = 'Back to restricted mode';
        _loading = false;
      });
    } catch (e) {
      setState(() {
        _error = e.toString();
        _loading = false;
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Airvoy SDK Example'),
        actions: [
          if (_esim != null)
            IconButton(
              icon: const Icon(Icons.refresh),
              onPressed: _loading ? null : _refreshEsim,
            ),
        ],
      ),
      body: SingleChildScrollView(
        padding: const EdgeInsets.all(16),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            // Status/Error messages
            if (_status != null)
              Container(
                padding: const EdgeInsets.all(12),
                margin: const EdgeInsets.only(bottom: 16),
                decoration: BoxDecoration(
                  color: Colors.blue[50],
                  borderRadius: BorderRadius.circular(8),
                ),
                child: Row(
                  children: [
                    if (_loading)
                      const Padding(
                        padding: EdgeInsets.only(right: 12),
                        child: SizedBox(
                          width: 16,
                          height: 16,
                          child: CircularProgressIndicator(strokeWidth: 2),
                        ),
                      ),
                    Text(_status!),
                  ],
                ),
              ),

            if (_error != null)
              Container(
                padding: const EdgeInsets.all(12),
                margin: const EdgeInsets.only(bottom: 16),
                decoration: BoxDecoration(
                  color: Colors.red[50],
                  borderRadius: BorderRadius.circular(8),
                ),
                child: Row(
                  children: [
                    Icon(Icons.error, color: Colors.red[700], size: 20),
                    const SizedBox(width: 8),
                    Expanded(child: Text(_error!, style: TextStyle(color: Colors.red[700]))),
                  ],
                ),
              ),

            // No eSIM yet - show create button
            if (_esim == null) ...[
              const Text(
                'Welcome to Airvoy',
                style: TextStyle(fontSize: 24, fontWeight: FontWeight.bold),
              ),
              const SizedBox(height: 8),
              const Text(
                'Get free connectivity to essential apps while traveling. Upgrade anytime for full internet access.',
              ),
              const SizedBox(height: 24),
              ElevatedButton.icon(
                onPressed: _loading ? null : _createEsim,
                icon: const Icon(Icons.sim_card),
                label: const Text('Activate Free eSIM'),
                style: ElevatedButton.styleFrom(
                  padding: const EdgeInsets.symmetric(vertical: 16),
                ),
              ),
            ],

            // eSIM exists - show card and controls
            if (_esim != null) ...[
              // eSIM Card widget
              EsimCard(
                airvoy: _airvoy,
                esimId: _esim!.id,
                onInstall: _installEsim,
                onUpgrade: _esim!.fullInternet ? null : _enableFullInternet,
              ),

              const SizedBox(height: 16),

              // Manual controls
              Card(
                child: Padding(
                  padding: const EdgeInsets.all(16),
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.stretch,
                    children: [
                      Text(
                        'Manual Controls',
                        style: Theme.of(context).textTheme.titleMedium,
                      ),
                      const SizedBox(height: 12),
                      
                      // Install button
                      InstallButton(
                        activationCode: _esim!.activationCode,
                        onInstalled: () {
                          setState(() => _status = 'eSIM setup opened!');
                        },
                        onError: (e) {
                          setState(() => _error = e);
                        },
                      ),
                      
                      const SizedBox(height: 8),

                      // Toggle full internet
                      if (_esim!.fullInternet)
                        OutlinedButton.icon(
                          onPressed: _loading ? null : _disableFullInternet,
                          icon: const Icon(Icons.lock),
                          label: const Text('Switch to Restricted (Free)'),
                        )
                      else
                        ElevatedButton.icon(
                          onPressed: _loading ? null : _enableFullInternet,
                          icon: const Icon(Icons.rocket_launch),
                          label: const Text('Enable Full Internet (1GB)'),
                          style: ElevatedButton.styleFrom(
                            backgroundColor: Colors.purple,
                            foregroundColor: Colors.white,
                          ),
                        ),
                    ],
                  ),
                ),
              ),

              const SizedBox(height: 16),

              // Upsell banner (only show when restricted)
              if (!_esim!.fullInternet)
                UpsellBanner(
                  airvoy: _airvoy,
                  esimId: _esim!.id,
                  onSelectPackage: (package) {
                    // In a real app, you'd handle payment here
                    // then call enableFullInternet
                    showDialog(
                      context: context,
                      builder: (ctx) => AlertDialog(
                        title: const Text('Confirm Purchase'),
                        content: Text(
                          'Buy ${package.dataFormatted} for ${package.priceFormatted}?',
                        ),
                        actions: [
                          TextButton(
                            onPressed: () => Navigator.pop(ctx),
                            child: const Text('Cancel'),
                          ),
                          ElevatedButton(
                            onPressed: () {
                              Navigator.pop(ctx);
                              _airvoy.enableFullInternet(
                                _esim!.id,
                                dataLimitMb: package.dataMb,
                              ).then((esim) {
                                setState(() {
                                  _esim = esim;
                                  _status = 'Full internet activated!';
                                });
                              });
                            },
                            child: const Text('Buy'),
                          ),
                        ],
                      ),
                    );
                  },
                ),
            ],
          ],
        ),
      ),
    );
  }
}