bluetooth_connect 0.0.2

Android / iOS BLE 扫描与连接。iOS 同时支持 CocoaPods 与 SPM（Swift Package Manager）依赖管理。

example/lib/main.dart

import 'dart:async';

import 'package:bluetooth_connect/bluetooth_connect.dart';
import 'package:flutter/material.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 _bluetooth = BluetoothConnect();
  String _status = 'unknown';
  List<BluetoothDevice> _devices = [];
  StreamSubscription? _scanSub;

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

  Future<void> _init() async {
    final available = await _bluetooth.isAvailable();
    final on = await _bluetooth.isOn();
    setState(() {
      _status = 'available=$available, on=$on';
    });
    _scanSub = _bluetooth.scanResults.listen((list) {
      setState(() => _devices = list);
    });
  }

  @override
  void dispose() {
    _scanSub?.cancel();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(title: const Text('bluetooth_connect example')),
        body: Column(
          children: [
            Padding(
              padding: const EdgeInsets.all(16),
              child: Text('Status: $_status'),
            ),
            ElevatedButton(
              onPressed: () => _bluetooth.startScan(),
              child: const Text('Start Scan'),
            ),
            Expanded(
              child: ListView.builder(
                itemCount: _devices.length,
                itemBuilder: (_, i) {
                  final d = _devices[i];
                  return ListTile(
                    title: Text(d.name.isEmpty ? 'Unknown' : d.name),
                    subtitle: Text('${d.id}  rssi=${d.rssi}'),
                    trailing: TextButton(
                      onPressed: () => _bluetooth.connect(d.id),
                      child: const Text('Connect'),
                    ),
                  );
                },
              ),
            ),
          ],
        ),
      ),
    );
  }
}