flutter蓝牙配网

Flutter提供了一个flutter_blue插件，它可以用于蓝牙开发。要进行蓝牙配网，首先需要扫描可用的蓝牙设备，然后连接到要配网的设备，发送配网指令并接收设备返回的配网结果。

以下是一个简单的蓝牙配网示例代码：

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

class BluetoothPage extends StatefulWidget {
  @override
  _BluetoothPageState createState() => _BluetoothPageState();
}

class _BluetoothPageState extends State<BluetoothPage> {
  FlutterBlue flutterBlue = FlutterBlue.instance;
  BluetoothDevice targetDevice;
  BluetoothService targetService;
  BluetoothCharacteristic targetCharacteristic;

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

  Future<void> startScan() async {
    flutterBlue.startScan(timeout: Duration(seconds: 4));
    flutterBlue.scanResults.listen((results) {
      for (ScanResult r in results) {
        if (r.device.name.contains('target_device_name')) {
          targetDevice = r.device;
          connectToDevice();
        }
      }
    });
  }

  Future<void> connectToDevice() async {
    await targetDevice.connect();
    List<BluetoothService> services = await targetDevice.discoverServices();
    for (BluetoothService service in services) {
      if (service.uuid.toString() == 'target_service_uuid') {
        targetService = service;
        for (BluetoothCharacteristic characteristic in targetService.characteristics) {
          if (characteristic.uuid.toString() == 'target_characteristic_uuid') {
            targetCharacteristic = characteristic;
            sendConfig();
          }
        }
      }
    }
  }

  Future<void> sendConfig() async {
    List<int> configData = [1, 2, 3, 4, 5]; // 配网指令
    await targetCharacteristic.write(configData);
    targetDevice.disconnect();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text('蓝牙配网')),
      body: Center(child: CircularProgressIndicator()),
    );
  }
}

在上面的示例中，我们首先启动蓝牙扫描，并监听扫描结果。如果我们找到了要配网的设备，就连接到该设备。连接成功后，我们发现要使用的服务和特征，并向设备发送配网指令。最后，我们断开与设备的连接。

当然，这只是一个简单的示例。在实际的应用中，您需要处理更多的错误和异常，并根据需要调整代码。