Flutter蓝牙通信插件vibio_bluetooth_core的使用

vibio_bluetooth_core 是一个用于 Flutter 的蓝牙通信插件，它允许开发者在 Flutter 应用中实现蓝牙设备的扫描、连接、数据读写等操作。以下是如何使用 vibio_bluetooth_core 插件的基本步骤：

1. 添加依赖

首先，在 pubspec.yaml 文件中添加 vibio_bluetooth_core 插件的依赖：

dependencies:
  flutter:
    sdk: flutter
  vibio_bluetooth_core: ^1.0.0  # 请使用最新版本

然后运行 flutter pub get 来安装依赖。

2. 导入插件

在你的 Dart 文件中导入 vibio_bluetooth_core 插件：

import 'package:vibio_bluetooth_core/vibio_bluetooth_core.dart';

3. 初始化蓝牙

在使用蓝牙功能之前，需要先初始化蓝牙模块：

VibioBluetoothCore bluetoothCore = VibioBluetoothCore();
await bluetoothCore.initialize();

4. 扫描蓝牙设备

使用 startScan 方法开始扫描附近的蓝牙设备：

bluetoothCore.startScan().listen((device) {
  print('Found device: ${device.name}, ${device.id}');
});

你可以通过 stopScan 方法停止扫描：

bluetoothCore.stopScan();

5. 连接蓝牙设备

使用 connect 方法连接指定的蓝牙设备：

String deviceId = 'your-device-id';
await bluetoothCore.connect(deviceId);

6. 断开连接

使用 disconnect 方法断开与蓝牙设备的连接：

await bluetoothCore.disconnect(deviceId);

7. 读取数据

使用 readCharacteristic 方法读取蓝牙设备的特征值：

String serviceUuid = 'your-service-uuid';
String characteristicUuid = 'your-characteristic-uuid';
List<int> data = await bluetoothCore.readCharacteristic(deviceId, serviceUuid, characteristicUuid);
print('Read data: $data');

8. 写入数据

使用 writeCharacteristic 方法向蓝牙设备的特征值写入数据：

List<int> data = [0x01, 0x02, 0x03];
await bluetoothCore.writeCharacteristic(deviceId, serviceUuid, characteristicUuid, data);

9. 监听数据

使用 setNotification 方法监听蓝牙设备的特征值变化：

bluetoothCore.setNotification(deviceId, serviceUuid, characteristicUuid).listen((data) {
  print('Received data: $data');
});

10. 处理错误

在使用蓝牙功能时，可能会遇到各种错误，建议在代码中添加错误处理逻辑：

try {
  await bluetoothCore.connect(deviceId);
} catch (e) {
  print('Error connecting to device: $e');
}

11. 释放资源

在应用退出或不再需要蓝牙功能时，释放蓝牙资源：

await bluetoothCore.dispose();

示例代码

以下是一个简单的示例，展示了如何使用 vibio_bluetooth_core 插件进行蓝牙设备的扫描、连接和数据读写：

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

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

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: BluetoothExample(),
    );
  }
}

class BluetoothExample extends StatefulWidget {
  [@override](/user/override)
  _BluetoothExampleState createState() => _BluetoothExampleState();
}

class _BluetoothExampleState extends State<BluetoothExample> {
  VibioBluetoothCore bluetoothCore = VibioBluetoothCore();
  String deviceId = '';

  [@override](/user/override)
  void initState() {
    super.initState();
    _initializeBluetooth();
  }

  Future<void> _initializeBluetooth() async {
    await bluetoothCore.initialize();
  }

  Future<void> _scanDevices() async {
    bluetoothCore.startScan().listen((device) {
      print('Found device: ${device.name}, ${device.id}');
      if (device.name == 'YourDeviceName') {
        setState(() {
          deviceId = device.id;
        });
        bluetoothCore.stopScan();
      }
    });
  }

  Future<void> _connectToDevice() async {
    try {
      await bluetoothCore.connect(deviceId);
      print('Connected to device: $deviceId');
    } catch (e) {
      print('Error connecting to device: $e');
    }
  }

  Future<void> _readData() async {
    String serviceUuid = 'your-service-uuid';
    String characteristicUuid = 'your-characteristic-uuid';
    List<int> data = await bluetoothCore.readCharacteristic(deviceId, serviceUuid, characteristicUuid);
    print('Read data: $data');
  }

  Future<void> _writeData() async {
    String serviceUuid = 'your-service-uuid';
    String characteristicUuid = 'your-characteristic-uuid';
    List<int> data = [0x01, 0x02, 0x03];
    await bluetoothCore.writeCharacteristic(deviceId, serviceUuid, characteristicUuid, data);
    print('Data written');
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Bluetooth Example'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            ElevatedButton(
              onPressed: _scanDevices,
              child: Text('Scan Devices'),
            ),
            ElevatedButton(
              onPressed: _connectToDevice,
              child: Text('Connect to Device'),
            ),
            ElevatedButton(
              onPressed: _readData,
              child: Text('Read Data'),
            ),
            ElevatedButton(
              onPressed: _writeData,
              child: Text('Write Data'),
            ),
          ],
        ),
      ),
    );
  }

  [@override](/user/override)
  void dispose() {
    bluetoothCore.dispose();
    super.dispose();
  }
}