ll_device_flutter_sdk 1.2.7

LinknLink Device Flutter SDK for controlling LinknLink devices via UDP. Provides APIs for smart home app integration with auto-pairing and device management.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:flutter_sdk/ll_device_flutter_sdk.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter SDK Example',
      home: LLDeviceFlutterSDKExample(),
    );
  }
}

class LLDeviceFlutterSDKExample extends StatefulWidget {
  @override
  _LLDeviceFlutterSDKExampleState createState() =>
      _LLDeviceFlutterSDKExampleState();
}

class _LLDeviceFlutterSDKExampleState extends State<LLDeviceFlutterSDKExample> {
  late LLDeviceFlutterSDK sdk;
  List<LLDNADeviceInfo> discoveredDevices = [];
  String status = 'Ready';

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

  void initSDK() {
    // Get SDK instance
    sdk = LLDeviceFlutterSDK.getInstance();

    // Listen to device events
    sdk.deviceEvents.listen((event) {
      setState(() {
        status = 'Device Event: ${event.toString()}';
      });
      print('Device Event: $event');
    });

    // Listen to discovery events
    sdk.discoveryEvents.listen((event) {
      setState(() {
        status = 'Discovery Event: ${event.toString()}';
      });
      print('Discovery Event: $event');
    });
  }

  // Example: Discover devices
  Future<void> discoverDevices() async {
    try {
      setState(() {
        status = 'Discovering devices...';
      });

      final devices = await sdk.discoverDevices(timeout: 5);

      setState(() {
        discoveredDevices = devices;
        status = 'Found ${devices.length} devices';
      });

      // Print device details
      for (final device in devices) {
        print('Found: ${device.name} at ${device.host}');
        print(
            '  Type: ${device.typeName} (0x${device.typeId.toRadixString(16)})');
        print('  MAC: ${device.macAddress}');
        print(
            '  Capabilities: IR=${device.capabilities.supportsIR}, RF=${device.capabilities.supportsRF}, Power=${device.capabilities.supportsPower}');
      }
    } catch (e) {
      setState(() {
        status = 'Discovery failed: $e';
      });
    }
  }

  // Example: Connect to device
  Future<void> connectDevice(LLDNADeviceInfo device) async {
    try {
      setState(() {
        status = 'Connecting to ${device.name}...';
      });

      final success = await sdk.connectDevice(device);

      setState(() {
        status = success
            ? 'Connected to ${device.name}'
            : 'Failed to connect to ${device.name}';
      });
    } catch (e) {
      setState(() {
        status = 'Connection error: $e';
      });
    }
  }

  // Example: Control SP device
  Future<void> controlSPDevice(LLDNADeviceInfo device) async {
    try {
      // Turn on the device
      bool success = await sdk.setSPPower(device.id, true);
      print('Turn ON result: $success');

      // Wait a moment
      await Future.delayed(Duration(seconds: 2));

      // Get power state
      bool? powerState = await sdk.getSPPower(device.id);
      print('Power state: $powerState');

      // Turn off the device
      success = await sdk.setSPPower(device.id, false);
      print('Turn OFF result: $success');

      setState(() {
        status = 'SP device controlled successfully';
      });
    } catch (e) {
      setState(() {
        status = 'SP control error: $e';
      });
    }
  }

  // Example: Learn IR code
  Future<void> learnIRCode(LLDNADeviceInfo device) async {
    try {
      setState(() {
        status = 'Learning IR code... Point remote and press button';
      });

      final code = await sdk.learnIRCode(device.id, timeout: 30);

      if (code != null) {
        print('Learned IR code: $code');
        setState(() {
          status = 'Learned IR code: ${code.substring(0, 20)}...';
        });

        // Test sending the learned code
        await Future.delayed(Duration(seconds: 2));
        final sendSuccess = await sdk.sendIRCode(device.id, code);

        setState(() {
          status = sendSuccess
              ? 'IR code learned and tested successfully'
              : 'IR code learned but test failed';
        });
      } else {
        setState(() {
          status = 'Failed to learn IR code (timeout or no signal)';
        });
      }
    } catch (e) {
      setState(() {
        status = 'IR learning error: $e';
      });
    }
  }

  // Example: Get sensor data
  Future<void> getSensorData(LLDNADeviceInfo device) async {
    try {
      final temperature = await sdk.getRMTemperature(device.id);
      final humidity = await sdk.getRMHumidity(device.id);

      setState(() {
        status =
            'Temperature: ${temperature?.toStringAsFixed(1)}°C, Humidity: ${humidity?.toStringAsFixed(1)}%';
      });
    } catch (e) {
      setState(() {
        status = 'Sensor reading error: $e';
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Broadlink SDK Example'),
      ),
      body: Padding(
        padding: EdgeInsets.all(16),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            Text('Status: $status',
                style: TextStyle(fontWeight: FontWeight.bold)),
            SizedBox(height: 16),
            ElevatedButton(
              onPressed: discoverDevices,
              child: Text('Discover Devices'),
            ),
            SizedBox(height: 16),
            Expanded(
              child: ListView.builder(
                itemCount: discoveredDevices.length,
                itemBuilder: (context, index) {
                  final device = discoveredDevices[index];
                  return Card(
                    child: ListTile(
                      title: Text(device.name),
                      subtitle: Text('${device.host} • ${device.typeName}'),
                      trailing: PopupMenuButton<String>(
                        onSelected: (action) =>
                            _handleDeviceAction(device, action),
                        itemBuilder: (context) => [
                          PopupMenuItem(
                              value: 'connect', child: Text('Connect')),
                          if (device.capabilities.supportsPower)
                            PopupMenuItem(
                                value: 'control_sp',
                                child: Text('Control Power')),
                          if (device.capabilities.supportsIR)
                            PopupMenuItem(
                                value: 'learn_ir', child: Text('Learn IR')),
                          if (device.capabilities.supportsSensors)
                            PopupMenuItem(
                                value: 'sensors', child: Text('Read Sensors')),
                        ],
                      ),
                    ),
                  );
                },
              ),
            ),
          ],
        ),
      ),
    );
  }

  void _handleDeviceAction(LLDNADeviceInfo device, String action) {
    switch (action) {
      case 'connect':
        connectDevice(device);
        break;
      case 'control_sp':
        controlSPDevice(device);
        break;
      case 'learn_ir':
        learnIRCode(device);
        break;
      case 'sensors':
        getSensorData(device);
        break;
    }
  }

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