当我在本地使用 flutter run 运行我的Flutter应用时，蓝牙扫描工作得非常好——所有附近的设备都能被检测到。然而，当我将应用发布到Google Play商店（封闭测试，发布AAB）时，根本检测不到任何蓝牙设备，即使我在设备设置中手动授权了所有权限。

我最初以为问题是由我设置的UUID过滤器引起的（只扫描具有特定UUID的设备）。我移除了该过滤器并推送了新版本。更新后的版本在本地通过 flutter run 测试时运行正常，但Play商店的版本仍然检测不到任何设备。

以下是我的代码。如果你需要我提供其他信息来调试这个问题，请告诉我！

谢谢

AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android">

       <!-- ── Bluetooth permissions (Android 12+ / SDK 31+) ── -->
    <uses-permission android:name="android.permission.BLUETOOTH_SCAN"
        android:usesPermissionFlags="neverForLocation" />
    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADVERTISE" />

    <!-- Legacy Bluetooth for older devices -->
    <uses-permission android:name="android.permission.BLUETOOTH"
        android:maxSdkVersion="30" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"
        android:maxSdkVersion="30" />

    <!-- Location required for BT scanning on all Android versions -->
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />

    <!-- Storage permissions for file import/export -->
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"
        android:maxSdkVersion="32" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
        android:maxSdkVersion="29" />

    <!-- Bluetooth feature declaration -->
    <uses-feature android:name="android.hardware.bluetooth_le"
        android:required="false" />

    <application
        android:label="Brimbéloi"
        android:name="${applicationName}"
        android:icon="@mipmap/ic_launcher"
        android:allowBackup="false"
        android:fullBackupContent="false">
        <activity
            android:name=".MainActivity"
            android:exported="true"
            android:launchMode="singleTop"
            android:taskAffinity=""
            android:theme="@style/LaunchTheme"
            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
            android:hardwareAccelerated="true"
            android:windowSoftInputMode="adjustResize">
            <!-- Specifies an Android theme to apply to this Activity as soon as
                 the Android process has started. This theme is visible to the user
                 while the Flutter UI initializes. After that, this theme continues
                 to determine the Window background behind the Flutter UI. -->
            <meta-data
              android:name="io.flutter.embedding.android.NormalTheme"
              android:resource="@style/NormalTheme"
              />
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
        <!-- Don't delete the meta-data below.
             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
        <meta-data
            android:name="flutterEmbedding"
            android:value="2" />
    </application>
    <!-- Required to query activities that can process text, see:
         https://developer.android.com/training/package-visibility and
         https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT.

         In particular, this is used by the Flutter engine in io.flutter.plugin.text.ProcessTextPlugin. -->
    <queries>
        <intent>
            <action android:name="android.intent.action.PROCESS_TEXT"/>
            <data android:mimeType="text/plain"/>
        </intent>
    </queries>
</manifest>

pubspec.yaml

name: brimbeloiv3
description: "A new Flutter project."
# The following line prevents the package from being accidentally published to
# pub.dev using `flutter pub publish`. This is preferred for private packages.
publish_to: "none" # Remove this line if you wish to publish to pub.dev

# The following defines the version and build number for your application.
# A version number is three numbers separated by dots, like 1.2.43
# followed by an optional build number separated by a +.
# Both the version and the builder number may be overridden in flutter
# build by specifying --build-name and --build-number, respectively.
# In Android, build-name is used as versionName while build-number used as versionCode.
# Read more about Android versioning at https://developer.android.com/studio/publish/versioning
# In iOS, build-name is used as CFBundleShortVersionString while build-number is used as CFBundleVersion.
# Read more about iOS versioning at
# https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
# In Windows, build-name is used as the major, minor, and patch parts
# of the product and file versions while build-number is used as the build suffix.
version: 1.0.1+1

environment:
  sdk: ^3.11.1

# Dependencies specify other packages that your package needs in order to work.
# To automatically upgrade your package dependencies to the latest versions
# consider running `flutter pub upgrade --major-versions`. Alternatively,
# dependencies can be manually updated by changing the version numbers below to
# the latest version available on pub.dev. To see which dependencies have newer
# versions available, run `flutter pub outdated`.
dependencies:
  flutter:
    sdk: flutter

  # The following adds the Cupertino Icons font to your application.
  # Use with the CupertinoIcons class for iOS style icons.
  cupertino_icons: ^1.0.8

dev_dependencies:
  flutter_test:
    sdk: flutter
  flutter_launcher_icons: ^0.13.1
  # The "flutter_lints" package below contains a set of recommended lints to
  # encourage good coding practices. The lint set provided by the package is
  # activated in the `analysis_options.yaml` file located at the root of your
  # package. See that file for information about deactivating specific lint
  # rules and activating additional ones.
  flutter_lints: ^6.0.0
  provider: ^6.1.1
  flutter_blue_plus: 1.32.4
  flutter_reorderable_list: ^1.0.1

# For information on the generic Dart part of this file, see the
# following page: https://dart.dev/tools/pub/pubspec

# The following section is specific to Flutter packages.
flutter:
  # The following line ensures that the Material Icons font is
  # included with your application, so that you can use the icons in
  # the material Icons class.
  uses-material-design: true
  assets:
    - assets/images/

flutter_icons:
  android: "launcher_icon"
  ios: false
  image_path: "assets/images/icon.png"

  # To add assets to your application, add an assets section, like this:
  # assets:
  #   - images/a_dot_burr.jpeg
  #   - images/a_dot_ham.jpeg

  # An image asset can refer to one or more resolution-specific "variants", see
  # https://flutter.dev/to/resolution-aware-images

  # For details regarding adding assets from package dependencies, see
  # https://flutter.dev/to/asset-from-package

  # To add custom fonts to your application, add a fonts section here,
  # in this "flutter" section. Each entry in this list should have a
  # "family" key with the font family name, and a "fonts" key with a
  # list giving the asset and other descriptors for the font. For
  # example:
  # fonts:
  #   - family: Schyler
  #     fonts:
  #       - asset: fonts/Schyler-Regular.ttf
  #       - asset: fonts/Schyler-Italic.ttf
  #         style: italic
  #   - family: Trajan Pro
  #     fonts:
  #       - asset: fonts/TrajanPro.ttf
  #       - asset: fonts/TrajanPro_Bold.ttf
  #         weight: 700
  #
  # For details regarding fonts from package dependencies,
  # see https://flutter.dev/to/font-from-package

main.dart

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:provider/provider.dart';

import 'bluetooth_provider.dart';
import 'pattern_provider.dart';
import 'esp_file_provider.dart';
import 'settings_provider.dart';
import 'main_screen.dart';
import 'app_theme.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  SystemChrome.setPreferredOrientations([
    DeviceOrientation.portraitUp,
    DeviceOrientation.portraitDown,
  ]);

  runApp(
    MultiProvider(
      providers: [
        ChangeNotifierProvider(create: (_) => SettingsProvider()),
        ChangeNotifierProvider(create: (_) => BluetoothProvider()),
        ChangeNotifierProvider(create: (_) => PatternProvider()),
        ChangeNotifierProvider(create: (_) => EspFileProvider()),
      ],
      child: const JiggerApp(),
    ),
  );
}

class JiggerApp extends StatelessWidget {
  const JiggerApp({super.key});

  @override
  Widget build(BuildContext context) {
    final settings = context.watch<SettingsProvider>();
    return MaterialApp(
      title: 'Jigger Control',
      debugShowCheckedModeBanner: false,
      theme: AppTheme.theme,
      darkTheme: AppTheme.darkTheme,
      themeMode: settings.darkMode ? ThemeMode.dark : ThemeMode.light,
      home: const MainScreen(),
    );
  }
}

bluetooth_provider.dart

import 'dart:async';
import 'package:flutter/foundation.dart';
import 'package:flutter_blue_plus/flutter_blue_plus.dart';
import 'bt_device.dart';

class BluetoothProvider extends ChangeNotifier {
  // ── Jigger UUIDs ─────────────────────────────────────────────
  static const String serviceUuid = '4fafc201-1fb5-459e-8fcc-c5c9c331914b';
  static const String characteristicUuid =
      'beb5483e-36e1-4688-b7f5-ea07361b26a8';

  // ── State ─────────────────────────────────────────────────────
  List<BtDevice> _devices = [];
  BtDevice? _selectedDevice;
  bool _isScanning = false;
  String? _errorMessage;

  final Map<String, String> _customNames = {};

  StreamSubscription? _scanSubscription;
  StreamSubscription? _scanningSubscription;

  List<BtDevice> get devices => List.unmodifiable(_devices);
  BtDevice? get selectedDevice => _selectedDevice;
  bool get isScanning => _isScanning;
  String? get errorMessage => _errorMessage;

  // ── Scanning ──────────────────────────────────────────────────

  Future<void> startScan() async {
    _errorMessage = null;
    _devices = [];
    notifyListeners();

    // Check + request Bluetooth (triggers permission dialog on first launch)
    final adapterState = await FlutterBluePlus.adapterState.first;
    if (adapterState != BluetoothAdapterState.on) {
      // On Android this will show the "turn on Bluetooth" system dialog
      try {
        await FlutterBluePlus.turnOn();
        // Wait up to 3 seconds for BT to turn on
        await FlutterBluePlus.adapterState
            .where((s) => s == BluetoothAdapterState.on)
            .first
            .timeout(const Duration(seconds: 3));
      } catch (_) {
        _errorMessage = 'Bluetooth désactivé. Veuillez l\'activer.';
        notifyListeners();
        return;
      }
    }

    // Always stop any existing scan first — prevents SCAN_FAILED_ALREADY_STARTED
    try {
      await FlutterBluePlus.stopScan();
    } catch (_) {}

    // Cancel old subscriptions before creating new ones
    await _scanSubscription?.cancel();
    await _scanningSubscription?.cancel();
    _scanSubscription = null;
    _scanningSubscription = null;

    // Small delay to let the OS fully stop the previous scan
    await Future.delayed(const Duration(milliseconds: 300));

    _isScanning = true;
    notifyListeners();

    // Listen to scan results and filter by our service UUID
    _scanSubscription = FlutterBluePlus.onScanResults.listen(
      (results) {
        for (final r in results) {
          // UUID filter disabled — shows all BT devices
          // Uncomment below to filter by jigger service UUID only:
          // final advertisedUuids = r.advertisementData.serviceUuids
          //     .map((u) => u.toString().toLowerCase())
          //     .toList();
          // if (!advertisedUuids.contains(serviceUuid.toLowerCase())) continue;

          final id = r.device.remoteId.str;
          if (_devices.any((d) => d.id == id)) continue;

          final name = r.device.platformName.isNotEmpty
              ? r.device.platformName
              : (r.advertisementData.advName.isNotEmpty
                    ? r.advertisementData.advName
                    : 'Jigger inconnu');

          final device = BtDevice(id: id, originalName: name);
          if (_customNames.containsKey(id)) {
            device.customName = _customNames[id]!;
          }
          _devices.add(device);
          notifyListeners();
        }
      },
      onError: (e) {
        _errorMessage = 'Erreur de scan: $e';
        _isScanning = false;
        notifyListeners();
      },
    );

    // Track when the scan finishes naturally
    _scanningSubscription = FlutterBluePlus.isScanning.listen((scanning) {
      if (!scanning && _isScanning) {
        _isScanning = false;
        notifyListeners();
      }
    });

    try {
      await FlutterBluePlus.startScan(
        // withServices: [Guid(serviceUuid)], // Uncomment to filter by UUID
        timeout: const Duration(seconds: 10),
      );
    } catch (e) {
      _errorMessage = 'Impossible de démarrer le scan: $e';
      _isScanning = false;
      notifyListeners();
    }
  }

  Future<void> stopScan() async {
    try {
      await FlutterBluePlus.stopScan();
    } catch (_) {}
    _isScanning = false;
    notifyListeners();
  }

  // ── Selection ─────────────────────────────────────────────────

  void selectDevice(BtDevice? device) {
    _selectedDevice = device;
    notifyListeners();
  }

  // ── Rename (in-memory) ────────────────────────────────────────

  void renameDevice(String deviceId, String newName) {
    final trimmed = newName.trim();
    _customNames[deviceId] = trimmed;

    final idx = _devices.indexWhere((d) => d.id == deviceId);
    if (idx >= 0) {
      _devices[idx] = _devices[idx].copyWith(customName: trimmed);
      if (_selectedDevice?.id == deviceId) {
        _selectedDevice = _devices[idx];
      }
    }
    notifyListeners();
  }

  // ── Command Sending (stub) ────────────────────────────────────

  Future<void> sendCommand(String command) async {
    if (_selectedDevice == null) {
      debugPrint('[BT] Aucun appareil sélectionné.');
      return;
    }
    debugPrint('[BT] → ${_selectedDevice!.displayName}: $command');
    // TODO: connect + write to characteristicUuid
  }

  @override
  void dispose() {
    _scanSubscription?.cancel();
    _scanningSubscription?.cancel();
    FlutterBluePlus.stopScan();
    super.dispose();
  }
}

解决方案

问题原因是依赖错误。
开发依赖中的依赖没有被包含在生产依赖中。
请检查pubspec.yaml。