flutter_video_call_sdk_plugin 0.1.0

flutter_video_call_sdk_plugin: ^0.1.0 copied to clipboard

example/lib/main.dart

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

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

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

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

class _MyAppState extends State<MyApp> {
  final _sdk = FlutterVideoCallSdk.instance;
  String? _sessionId;
  SessionStats? _stats;
  bool _isInitialized = false;
  final List<String> _logs = [];

  @override
  void initState() {
    super.initState();
    _initializeSDK();
  }

  Future<void> _initializeSDK() async {
    try {
      await _sdk.initialize();
      setState(() {
        _isInitialized = true;
      });
      _addLog('✅ SDK initialized successfully');
    } catch (e) {
      _addLog('❌ Failed to initialize SDK: $e');
    }
  }

  void _addLog(String message) {
    setState(() {
      _logs.insert(0, '${DateTime.now().toString().substring(11, 19)} - $message');
      if (_logs.length > 20) {
        _logs.removeLast();
      }
    });
  }

  Future<void> _createSession() async {
    try {
      final sessionId = await _sdk.createSession(
        initialBitrate: 1000000, // 1 Mbps
        minBitrate: 300000,      // 300 kbps
        maxBitrate: 3000000,     // 3 Mbps
        enableFec: true,
      );
      
      setState(() {
        _sessionId = sessionId;
      });
      
      _addLog('📞 Session created: ${sessionId.substring(0, 8)}...');
      await _updateStats();
    } catch (e) {
      _addLog('❌ Failed to create session: $e');
    }
  }

  Future<void> _simulateGoodNetwork() async {
    if (_sessionId == null) {
      _addLog('⚠️  No active session');
      return;
    }

    try {
      await _sdk.updateNetworkFeedback(
        _sessionId!,
        rttMs: 20,
        lossRate: 0.0,
      );
      _addLog('📶 Simulated good network (20ms RTT, 0% loss)');
      await _updateStats();
    } catch (e) {
      _addLog('❌ Failed to update feedback: $e');
    }
  }

  Future<void> _simulateBadNetwork() async {
    if (_sessionId == null) {
      _addLog('⚠️  No active session');
      return;
    }

    try {
      await _sdk.updateNetworkFeedback(
        _sessionId!,
        rttMs: 150,
        lossRate: 0.08,
      );
      _addLog('📶 Simulated bad network (150ms RTT, 8% loss)');
      await _updateStats();
    } catch (e) {
      _addLog('❌ Failed to update feedback: $e');
    }
  }

  Future<void> _updateStats() async {
    if (_sessionId == null) return;

    try {
      final stats = await _sdk.getSessionStats(_sessionId!);
      setState(() {
        _stats = stats;
      });
      _addLog('📊 Stats updated: ${stats.bitrateMbps.toStringAsFixed(2)} Mbps');
    } catch (e) {
      _addLog('❌ Failed to get stats: $e');
    }
  }

  Future<void> _closeSession() async {
    if (_sessionId == null) {
      _addLog('⚠️  No active session');
      return;
    }

    try {
      await _sdk.closeSession(_sessionId!);
      setState(() {
        _sessionId = null;
        _stats = null;
      });
      _addLog('🔴 Session closed');
    } catch (e) {
      _addLog('❌ Failed to close session: $e');
    }
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(
          seedColor: Colors.blue,
          brightness: Brightness.dark,
        ),
        useMaterial3: true,
      ),
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Flutter Video Call SDK'),
          centerTitle: true,
          elevation: 2,
        ),
        body: !_isInitialized
            ? const Center(
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    CircularProgressIndicator(),
                    SizedBox(height: 16),
                    Text('Initializing SDK...'),
                  ],
                ),
              )
            : SingleChildScrollView(
                padding: const EdgeInsets.all(16),
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.stretch,
                  children: [
                    // Session Status Card
                    Card(
                      child: Padding(
                        padding: const EdgeInsets.all(16),
                        child: Column(
                          crossAxisAlignment: CrossAxisAlignment.start,
                          children: [
                            Row(
                              children: [
                                Icon(
                                  _sessionId != null
                                      ? Icons.check_circle
                                      : Icons.cancel,
                                  color: _sessionId != null
                                      ? Colors.green
                                      : Colors.grey,
                                ),
                                const SizedBox(width: 8),
                                Text(
                                  _sessionId != null
                                      ? 'Session Active'
                                      : 'No Active Session',
                                  style: Theme.of(context).textTheme.titleLarge,
                                ),
                              ],
                            ),
                            if (_sessionId != null) ...[
                              const SizedBox(height: 8),
                              Text(
                                'ID: ${_sessionId!.substring(0, 16)}...',
                                style: Theme.of(context).textTheme.bodySmall,
                              ),
                            ],
                          ],
                        ),
                      ),
                    ),

                    const SizedBox(height: 16),

                    // Statistics Card
                    if (_stats != null)
                      Card(
                        child: Padding(
                          padding: const EdgeInsets.all(16),
                          child: Column(
                            crossAxisAlignment: CrossAxisAlignment.start,
                            children: [
                              Text(
                                'Session Statistics',
                                style: Theme.of(context).textTheme.titleLarge,
                              ),
                              const Divider(),
                              _buildStatRow(
                                'State',
                                _stats!.state.toUpperCase(),
                                Icons.info_outline,
                              ),
                              _buildStatRow(
                                'Bitrate',
                                '${_stats!.bitrateMbps.toStringAsFixed(2)} Mbps',
                                Icons.speed,
                              ),
                              _buildStatRow(
                                'FEC Overhead',
                                '${_stats!.fecOverhead.toStringAsFixed(1)}%',
                                Icons.shield,
                              ),
                              _buildStatRow(
                                'Packet Loss',
                                '${_stats!.lossRatePercent.toStringAsFixed(1)}%',
                                Icons.warning_amber,
                              ),
                            ],
                          ),
                        ),
                      ),

                    const SizedBox(height: 16),

                    // Control Buttons
                    Text(
                      'Session Controls',
                      style: Theme.of(context).textTheme.titleMedium,
                    ),
                    const SizedBox(height: 8),
                    
                    ElevatedButton.icon(
                      onPressed: _sessionId == null ? _createSession : null,
                      icon: const Icon(Icons.add_call),
                      label: const Text('Create Session'),
                    ),
                    const SizedBox(height: 8),
                    
                    ElevatedButton.icon(
                      onPressed: _sessionId != null ? _closeSession : null,
                      icon: const Icon(Icons.call_end),
                      label: const Text('Close Session'),
                      style: ElevatedButton.styleFrom(
                        backgroundColor: Colors.red,
                      ),
                    ),

                    const SizedBox(height: 24),

                    // Network Simulation
                    Text(
                      'Network Simulation',
                      style: Theme.of(context).textTheme.titleMedium,
                    ),
                    const SizedBox(height: 8),
                    
                    ElevatedButton.icon(
                      onPressed: _sessionId != null ? _simulateGoodNetwork : null,
                      icon: const Icon(Icons.signal_cellular_alt),
                      label: const Text('Good Network (20ms, 0% loss)'),
                      style: ElevatedButton.styleFrom(
                        backgroundColor: Colors.green,
                      ),
                    ),
                    const SizedBox(height: 8),
                    
                    ElevatedButton.icon(
                      onPressed: _sessionId != null ? _simulateBadNetwork : null,
                      icon: const Icon(Icons.signal_cellular_alt_1_bar),
                      label: const Text('Bad Network (150ms, 8% loss)'),
                      style: ElevatedButton.styleFrom(
                        backgroundColor: Colors.orange,
                      ),
                    ),

                    const SizedBox(height: 24),

                    // Activity Log
                    Text(
                      'Activity Log',
                      style: Theme.of(context).textTheme.titleMedium,
                    ),
                    const SizedBox(height: 8),
                    
                    Card(
                      child: Container(
                        height: 200,
                        padding: const EdgeInsets.all(12),
                        child: _logs.isEmpty
                            ? const Center(
                                child: Text('No activity yet'),
                              )
                            : ListView.builder(
                                itemCount: _logs.length,
                                itemBuilder: (context, index) {
                                  return Padding(
                                    padding: const EdgeInsets.symmetric(vertical: 2),
                                    child: Text(
                                      _logs[index],
                                      style: Theme.of(context).textTheme.bodySmall?.copyWith(
                                        fontFamily: 'monospace',
                                      ),
                                    ),
                                  );
                                },
                              ),
                      ),
                    ),
                  ],
                ),
              ),
      ),
    );
  }

  Widget _buildStatRow(String label, String value, IconData icon) {
    return Padding(
      padding: const EdgeInsets.symmetric(vertical: 8),
      child: Row(
        children: [
          Icon(icon, size: 20, color: Colors.blue),
          const SizedBox(width: 12),
          Expanded(
            child: Text(
              label,
              style: const TextStyle(fontWeight: FontWeight.w500),
            ),
          ),
          Text(
            value,
            style: const TextStyle(
              fontWeight: FontWeight.bold,
              color: Colors.blue,
            ),
          ),
        ],
      ),
    );
  }

  @override
  void dispose() {
    _sdk.dispose();
    super.dispose();
  }
}