mirror of
https://github.com/m5stack/StackChan.git
synced 2026-04-28 03:22:39 +00:00
袁智鸿
6314188835
- align Android/iOS native bridge implementations and audio handling paths - improve Bluetooth provisioning/verification flow and related error handling - refactor WebSocket, music, and device utility logic for more stable behavior - clean up noisy debug logs and normalize comments across Flutter and native code - update AR view, dance/agent/device pages, and platform integration details
721 lines
21 KiB
Dart
721 lines
21 KiB
Dart
/*
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SPDX-FileCopyrightText: 2026 M5Stack Technology CO LTD
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SPDX-License-Identifier: MIT
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*/
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import 'dart:async';
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import 'dart:convert';
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import 'dart:io';
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import 'package:flutter/cupertino.dart';
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import 'package:flutter_blue_plus/flutter_blue_plus.dart';
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import 'package:permission_handler/permission_handler.dart';
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import 'package:stack_chan/app_state.dart';
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import 'package:stack_chan/model/expression_data.dart';
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import 'package:stack_chan/util/value_constant.dart';
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import 'package:stack_chan/view/app.dart';
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import 'package:stack_chan/view/popup/device_wifi_config.dart';
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import '../model/blue_device_info.dart';
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import '../model/dance_list.dart';
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class BlueUtil {
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static final BlueUtil shared = BlueUtil._internal();
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BlueUtil._internal() {
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_initialize();
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}
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static const String danceTargetServiceUUID =
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"e2e5e5e0-1234-5678-1234-56789abcdef0";
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//MARK: - Core constants (align with iOS)
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static const String targetServiceUUID =
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"e2e5e5ff-1234-5678-1234-56789abcdef0";
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static const String headCharacteristicUUID =
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"0000ffe1-0000-1000-8000-00805f9b34fb";
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static const String wifiSetCharacteristicUUID =
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"e2e5e5e3-1234-5678-1234-56789abcdef0";
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static const String expressionCharacteristicUUID =
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"0000ffe3-0000-1000-8000-00805f9b34fb";
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static const String writeCharacteristicUUID =
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"0000ffe4-0000-1000-8000-00805f9b34fb";
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//MARK: - Core properties (align with iOS)
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List<BlueDeviceInfo> discoveredDevices = [];
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bool blueSwitch = false;
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final bool autoReconnect = true;
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BluetoothDevice? currentPeripheral;
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//Auto scan enabled by default
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bool automaticScanning = true;
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//Feature object
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BluetoothCharacteristic? writeCharacteristic;
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BluetoothCharacteristic? writeExpressionCharacteristic;
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BluetoothCharacteristic? writeHeadCharacteristic;
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BluetoothCharacteristic? writeWifiSetCharacteristic;
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//MARK: - Callback closures
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Function(List<BlueDeviceInfo>)? blufDevicesMonitoring;
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Function(BluetoothAdapterState)? centralManagerDidUpdateState;
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Function(BluetoothDevice, BluetoothCharacteristic)? characteristicCallback;
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Function(BluetoothDevice, bool)? connectionStateChanged;
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Function(List<int>)? wifiSetCharacteristicCall;
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//MARK: - Private properties
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StreamSubscription? _scanSubscription;
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StreamSubscription<BluetoothAdapterState>? _adapterStateSubscription;
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StreamSubscription<BluetoothConnectionState>? _connectionStateSubscription;
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Timer? _cleanupTimer;
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final Duration _deviceTimeout = const Duration(seconds: 3);
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static const String motionCharacteristicUUID =
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"e2e5e5e1-1234-5678-1234-56789abcdef0";
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static const String avatarCharacteristicUUID =
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"e2e5e5e2-1234-5678-1234-56789abcdef0";
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static const String configCharacteristicUUID =
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"e2e5e5e3-1234-5678-1234-56789abcdef0";
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static const String rgbCharacteristicUUID =
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"e2e5e5e4-1234-5678-1234-56789abcdef0";
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BluetoothCharacteristic? writeMotionCharacteristic;
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BluetoothCharacteristic? writeAvatarCharacteristic;
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BluetoothCharacteristic? writeRGBCharacteristic;
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int blueMode = 1; //1 WiFi mode 2 Dance mode 3 Pairing mode
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///Cache scanned device list for change comparison
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List<String> cachedDeviceMacs = [];
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//MARK: - Initialization (fix Android first timing issue: permission → listen → enable Bluetooth)
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void _initialize() {
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//[Fix] Request permission first, init listener and Bluetooth after permission granted
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_requestBluetoothPermissions();
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}
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//MARK: - Request Bluetooth permission (permission_handler)
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Future<void> _requestBluetoothPermissions() async {
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try {
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Map<Permission, PermissionStatus> statuses;
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if (Platform.isAndroid) {
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//Android 12+ permissions
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statuses = await [
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Permission.bluetooth,
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Permission.bluetoothScan,
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Permission.bluetoothConnect,
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Permission.location,
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].request();
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} else if (Platform.isIOS) {
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//iOS permissions
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statuses = await [
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Permission.bluetooth,
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Permission.bluetoothScan,
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Permission.bluetoothConnect,
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Permission.location,
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].request();
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} else {
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return;
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}
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bool allGranted = true;
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statuses.forEach((permission, status) {
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if (!status.isGranted) {
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allGranted = false;
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}
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});
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//Execute enable Bluetooth command regardless of success to fix some plugin bugs
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if (allGranted) {
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_registerBluetoothStateListener();
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await _tryTurnOnBluetooth();
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} else {
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_registerBluetoothStateListener();
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await _tryTurnOnBluetooth();
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}
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} catch (e) {
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_registerBluetoothStateListener();
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await _tryTurnOnBluetooth();
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}
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}
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void _registerBluetoothStateListener() {
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_adapterStateSubscription?.cancel();
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_adapterStateSubscription = FlutterBluePlus.adapterState.listen((state) {
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centralManagerDidUpdateState?.call(state);
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_centralManagerDidUpdateState(state);
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});
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}
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//MARK: - [New] Auto enable Bluetooth
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Future<void> _tryTurnOnBluetooth() async {
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try {
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final currentState = FlutterBluePlus.adapterStateNow;
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if (currentState == BluetoothAdapterState.off) {
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await FlutterBluePlus.turnOn();
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} else if (currentState == BluetoothAdapterState.on) {
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//[fixkey]Androidfirstpermissionsuccess+BluetoothAlreadyenable → proactivetriggerscan
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blueSwitch = true;
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if (automaticScanning) {
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startScan();
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}
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if (autoReconnect) {
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reconnect();
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}
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}
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} catch (e) {
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}
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}
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//MARK: - Bluetooth status update (auto scan, auto reconnect)
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void _centralManagerDidUpdateState(BluetoothAdapterState state) {
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switch (state) {
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case BluetoothAdapterState.unknown:
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break;
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case BluetoothAdapterState.unavailable:
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break;
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case BluetoothAdapterState.unauthorized:
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break;
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case BluetoothAdapterState.turningOn:
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break;
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case BluetoothAdapterState.on:
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blueSwitch = true;
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//Bluetoothenable autostartscan
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if (automaticScanning) {
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startScan();
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}
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//autoreconnect
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if (autoReconnect) {
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reconnect();
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}
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break;
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case BluetoothAdapterState.turningOff:
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break;
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case BluetoothAdapterState.off:
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blueSwitch = false;
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//closeafterautoTryreOpen
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_tryTurnOnBluetooth();
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break;
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}
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}
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//MARK: - Scan related (auto execute)
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void startScan() {
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if (FlutterBluePlus.adapterStateNow != BluetoothAdapterState.on) {
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//stateNotMeet / Satisfy,autoOpenBluetooth
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_tryTurnOnBluetooth();
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return;
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}
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discoveredDevices.clear();
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FlutterBluePlus.startScan(
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withServices: [Guid(targetServiceUUID), Guid(danceTargetServiceUUID)],
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continuousUpdates: true,
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removeIfGone: _deviceTimeout,
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);
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_scanSubscription = FlutterBluePlus.scanResults.listen(
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(results) {
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for (var result in results) {
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_centralManagerDidDiscoverPeripheral(result);
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}
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},
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onError: (e) {
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},
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);
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_startCleanupTimer();
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}
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//Corresponds to iOS centralManager didDiscover peripheral method
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void _centralManagerDidDiscoverPeripheral(ScanResult result) {
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final advertisementDataMap = {
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ValueConstant.advName: result.advertisementData.advName,
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ValueConstant.txPowerLevel: result.advertisementData.txPowerLevel,
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ValueConstant.connectable: result.advertisementData.connectable,
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ValueConstant.serviceUuids: result.advertisementData.serviceUuids
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.map((g) => g.toString())
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.toList(),
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ValueConstant.serviceData: result.advertisementData.serviceData.map(
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(k, v) => MapEntry(k.toString(), v),
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),
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ValueConstant.manufacturerData: result.advertisementData.manufacturerData,
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};
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final deviceInfo = BlueDeviceInfo(
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device: result.device,
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advertisementData: advertisementDataMap,
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rssi: result.rssi,
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lastSeen: DateTime.now(),
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);
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final index = discoveredDevices.indexWhere(
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(d) => d.device.remoteId == result.device.remoteId,
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);
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if (index == -1) {
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discoveredDevices.add(deviceInfo);
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} else {
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discoveredDevices[index] = deviceInfo;
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}
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//[Fix]WhenbounddeviceCurrentlyinconnectorconnectedwhen,NotexecutedevicediscoverStreamProcess / Thread
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if (currentPeripheral != null) {
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return;
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}
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//Determine behavior based on blueMode
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switch (blueMode) {
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case 1:
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//Change WiFi mode: Check device changes, auto connect bound devices
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_checkDeviceChanges();
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break;
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case 2:
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//Dance mode: Only connect own device (requires deviceControlMode == 1)
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if (AppState.shared.deviceControlMode == 1) {
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screenMyDevice(discoveredDevices);
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}
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break;
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case 3:
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//pairingmode:callbackdevicelistFor / ToUIshow
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blufDevicesMonitoring?.call(discoveredDevices);
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break;
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}
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}
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///checkdevicelistchange，hasnewdevicewhencheckwhetherbound
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Future<void> _checkDeviceChanges() async {
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final newDate = DateTime.now();
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if (AppState.shared.manualShutdownTime != null) {
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final Duration difference = newDate.difference(
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AppState.shared.manualShutdownTime!,
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);
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if (difference.inSeconds < 6) {
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return;
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}
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}
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//Get MAC addresses of all current devices
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List<String> currentMacs = [];
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for (final device in discoveredDevices) {
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final mac = _getDeviceId(device);
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if (mac != null) {
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currentMacs.add(mac.toUpperCase());
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}
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}
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//comparewhetherhasnewdeviceAppear / Occur
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bool hasNewDevice = false;
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for (final mac in currentMacs) {
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if (!cachedDeviceMacs.contains(mac)) {
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hasNewDevice = true;
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break;
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}
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}
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//updatecache
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cachedDeviceMacs = currentMacs;
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//ifhasnewdevice,AnduserAlreadylogin,checkwhetherisbounddevice
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if (hasNewDevice && AppState.shared.isLogin.value) {
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//Getbounddevicelist
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await AppState.shared.getDevices();
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//checkcurrentscantodevicewhetherinboundlistin
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for (final deviceInfo in discoveredDevices) {
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final String? deviceMac = _getDeviceId(deviceInfo);
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if (deviceMac == null) continue;
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final upperMac = deviceMac.toUpperCase();
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//checkwhetherisbounddevice
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final isBound = AppState.shared.devices.any(
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(device) => device.mac.toUpperCase() == upperMac,
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);
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if (isBound && currentPeripheral == null) {
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currentPeripheral = deviceInfo.device;
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//[Fix]First / Previouslymarkconnectin,connectsuccessafterAgainpopup
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await connect(deviceInfo.device);
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if (AppState.shared.popupState) {
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return;
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}
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AppState.shared.popupState = true;
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await showCupertinoSheet(
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context: App.appContext(),
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builder: (context) {
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return DeviceWifiConfig();
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},
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);
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AppState.shared.popupState = false;
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break;
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}
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}
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}
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}
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String? _getDeviceId(BlueDeviceInfo blueDeviceInfo) {
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final Map<int, List<int>> manufacturerDataMap =
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blueDeviceInfo.advertisementData[ValueConstant.manufacturerData];
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if (manufacturerDataMap.isNotEmpty) {
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final MapEntry<int, List<int>> firstEntry =
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manufacturerDataMap.entries.first;
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final List<int> customData = firstEntry.value;
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final address = customData.map((byte) {
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return byte.toRadixString(16).padLeft(2, '0').toUpperCase();
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}).join();
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return address;
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}
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return null;
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}
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void screenMyDevice(List<BlueDeviceInfo> devices) {
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if (AppState.shared.deviceMac.isEmpty) {
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return;
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}
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for (final deviceInfo in devices) {
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final String? deviceMac = _getDeviceId(deviceInfo);
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if (deviceMac == null) {
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continue;
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}
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final String targetMac = AppState.shared.deviceMac.toUpperCase();
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if (deviceMac.toUpperCase() == targetMac) {
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currentPeripheral = deviceInfo.device;
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connect(deviceInfo.device);
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break;
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}
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}
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}
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void _startCleanupTimer() {
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_cleanupTimer?.cancel();
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_cleanupTimer = Timer.periodic(const Duration(seconds: 2), (timer) {
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final now = DateTime.now();
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final originalCount = discoveredDevices.length;
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discoveredDevices.removeWhere((d) {
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return now.difference(d.lastSeen) > _deviceTimeout;
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});
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if (discoveredDevices.length != originalCount) {
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blufDevicesMonitoring?.call(discoveredDevices);
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}
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});
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}
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void stopScan() {
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FlutterBluePlus.stopScan();
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_scanSubscription?.cancel();
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_cleanupTimer?.cancel();
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}
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//MARK: - Connection related
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Future<void> connect(BluetoothDevice peripheral) async {
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try {
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_connectionStateSubscription?.cancel();
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_connectionStateSubscription = peripheral.connectionState.listen((state) {
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_handleConnectionState(peripheral, state);
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});
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_resetCharacteristics();
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await peripheral.connect(
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license: License.free,
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timeout: const Duration(seconds: 15),
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autoConnect: false,
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);
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} catch (e) {
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String errorMsg = e is FlutterBluePlusException
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? "${e.description} (code: ${e.code})"
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: e.toString();
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connectionStateChanged?.call(peripheral, false);
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}
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}
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void _handleConnectionState(
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BluetoothDevice peripheral,
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BluetoothConnectionState state,
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) {
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switch (state) {
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case BluetoothConnectionState.connected:
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currentPeripheral = peripheral;
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_peripheralDidConnect(peripheral);
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connectionStateChanged?.call(peripheral, true);
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break;
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case BluetoothConnectionState.disconnected:
|
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final disconnectReason = peripheral.disconnectReason;
|
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currentPeripheral = null;
|
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_resetCharacteristics();
|
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connectionStateChanged?.call(peripheral, false);
|
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|
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//Remove disconnected device MAC from cache so it's treated as new when scanned after reboot
|
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for (final deviceInfo in discoveredDevices) {
|
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if (deviceInfo.device.remoteId == peripheral.remoteId) {
|
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final mac = _getDeviceId(deviceInfo);
|
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if (mac != null) {
|
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cachedDeviceMacs.remove(mac.toUpperCase());
|
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}
|
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break;
|
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}
|
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}
|
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|
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if (autoReconnect) {
|
||
reconnect();
|
||
}
|
||
break;
|
||
default:
|
||
break;
|
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}
|
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}
|
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|
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Future<void> _peripheralDidConnect(BluetoothDevice peripheral) async {
|
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await _discoverServices(peripheral);
|
||
}
|
||
|
||
Future<void> _discoverServices(BluetoothDevice peripheral) async {
|
||
try {
|
||
if (peripheral.isDisconnected) {
|
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return;
|
||
}
|
||
|
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//CallSystemmethoddiscoverservice
|
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final services = await peripheral.discoverServices(timeout: 35);
|
||
|
||
for (var s in services) {
|
||
}
|
||
|
||
//iteratediscoverfeature
|
||
for (var service in services) {
|
||
await _discoverCharacteristics(peripheral, service);
|
||
}
|
||
} catch (e, stack) {
|
||
//Add stack print trace
|
||
}
|
||
}
|
||
|
||
Future<void> _discoverCharacteristics(
|
||
BluetoothDevice peripheral,
|
||
BluetoothService service,
|
||
) async {
|
||
try {
|
||
final characteristics = service.characteristics;
|
||
|
||
for (var characteristic in characteristics) {
|
||
characteristicCallback?.call(peripheral, characteristic);
|
||
await _setupCharacteristicListener(peripheral, characteristic);
|
||
_saveCharacteristicReference(characteristic);
|
||
}
|
||
} catch (e) {
|
||
}
|
||
}
|
||
|
||
Future<void> _setupCharacteristicListener(
|
||
BluetoothDevice peripheral,
|
||
BluetoothCharacteristic characteristic,
|
||
) async {
|
||
final uuid = characteristic.uuid.toString();
|
||
|
||
const List<String> needNotifyUuids = [wifiSetCharacteristicUUID];
|
||
|
||
if (!needNotifyUuids.map((e) => e.toLowerCase()).contains(uuid)) {
|
||
return;
|
||
}
|
||
|
||
//onlyhasinwhitelistInsidefeatureValue,Only thenexecuteDownSurface / Sidelistenlogic
|
||
if (characteristic.properties.notify ||
|
||
characteristic.properties.indicate) {
|
||
try {
|
||
bool notifySuccess = await characteristic.setNotifyValue(true);
|
||
if (notifySuccess) {
|
||
} else {
|
||
}
|
||
} catch (e) {
|
||
}
|
||
}
|
||
//listendatareceive
|
||
characteristic.lastValueStream.listen((value) {
|
||
if (value.isEmpty) return;
|
||
if (uuid == wifiSetCharacteristicUUID.toLowerCase()) {
|
||
wifiSetCharacteristicCall?.call(value);
|
||
}
|
||
});
|
||
}
|
||
|
||
void _saveCharacteristicReference(BluetoothCharacteristic characteristic) {
|
||
final uuid = characteristic.uuid.toString();
|
||
switch (uuid) {
|
||
case headCharacteristicUUID:
|
||
writeHeadCharacteristic = characteristic;
|
||
break;
|
||
case wifiSetCharacteristicUUID:
|
||
writeWifiSetCharacteristic = characteristic;
|
||
break;
|
||
case expressionCharacteristicUUID:
|
||
writeExpressionCharacteristic = characteristic;
|
||
break;
|
||
case writeCharacteristicUUID:
|
||
writeCharacteristic = characteristic;
|
||
break;
|
||
case motionCharacteristicUUID:
|
||
writeMotionCharacteristic = characteristic;
|
||
break;
|
||
case avatarCharacteristicUUID:
|
||
writeAvatarCharacteristic = characteristic;
|
||
break;
|
||
case rgbCharacteristicUUID:
|
||
writeRGBCharacteristic = characteristic;
|
||
break;
|
||
}
|
||
}
|
||
|
||
Future<void> disconnectCurrentPeripheral() async {
|
||
final peripheral = currentPeripheral;
|
||
if (peripheral == null) {
|
||
return;
|
||
}
|
||
|
||
try {
|
||
await peripheral.disconnect(timeout: 35, queue: true, androidDelay: 2000);
|
||
_resetCharacteristics();
|
||
} catch (e) {
|
||
}
|
||
}
|
||
|
||
void _resetCharacteristics() {
|
||
writeWifiSetCharacteristic = null;
|
||
writeHeadCharacteristic = null;
|
||
writeExpressionCharacteristic = null;
|
||
writeCharacteristic = null;
|
||
}
|
||
|
||
//MARK: - Data sending
|
||
Future<void> sendHeadData(String data) async {
|
||
await _sendData(data, writeHeadCharacteristic, "Head data");
|
||
}
|
||
|
||
Future<bool> sendWifiSetData(String data) async {
|
||
return await _sendData(data, writeWifiSetCharacteristic, "WiFi set data");
|
||
}
|
||
|
||
Future<void> sendExpressionData(String data) async {
|
||
await _sendData(data, writeExpressionCharacteristic, "Expression data");
|
||
}
|
||
|
||
Future<void> sendData(String data) async {
|
||
await _sendData(data, writeCharacteristic, "Data");
|
||
}
|
||
|
||
Future<void> sendDanceData(DanceData data) async {
|
||
if (writeMotionCharacteristic != null) {
|
||
final motion = MotionData(
|
||
pitchServo: data.pitchServo,
|
||
yawServo: data.yawServo,
|
||
);
|
||
final motionData = utf8.encode(motion.toString());
|
||
writeMotionCharacteristic!.write(
|
||
motionData,
|
||
withoutResponse: false,
|
||
allowLongWrite: true,
|
||
);
|
||
}
|
||
if (writeAvatarCharacteristic != null) {
|
||
final avatar = ExpressionData(
|
||
leftEye: data.leftEye,
|
||
rightEye: data.rightEye,
|
||
mouth: data.mouth,
|
||
);
|
||
final avatarData = utf8.encode(avatar.toString());
|
||
writeAvatarCharacteristic!.write(
|
||
avatarData,
|
||
withoutResponse: false,
|
||
allowLongWrite: true,
|
||
);
|
||
}
|
||
if (writeRGBCharacteristic != null) {
|
||
final rgb = RgbData(
|
||
leftRgbColor: data.leftRgbColor,
|
||
leftRgbDuration: 0.3,
|
||
rightRgbColor: data.rightRgbColor,
|
||
rightRgbDuration: 0.3,
|
||
);
|
||
final rgbData = utf8.encode(rgb.toString());
|
||
writeRGBCharacteristic!.write(
|
||
rgbData,
|
||
withoutResponse: false,
|
||
allowLongWrite: true,
|
||
);
|
||
}
|
||
}
|
||
|
||
Future<bool> _sendData(
|
||
String data,
|
||
BluetoothCharacteristic? characteristic,
|
||
String type,
|
||
) async {
|
||
if (characteristic == null) {
|
||
return false;
|
||
}
|
||
|
||
final dataToSend = utf8.encode(data);
|
||
if (dataToSend.isEmpty) {
|
||
return false;
|
||
}
|
||
|
||
try {
|
||
|
||
await characteristic.write(
|
||
dataToSend,
|
||
withoutResponse: false,
|
||
allowLongWrite: true,
|
||
);
|
||
|
||
return true;
|
||
} catch (e) {
|
||
|
||
//Send failed = connection broken → can reconnect here
|
||
if (e.toString().contains("Timed out")) {
|
||
//cantriggerreconnectlogic
|
||
}
|
||
return false;
|
||
}
|
||
}
|
||
|
||
Future<void> reconnect() async {
|
||
if (currentPeripheral != null && currentPeripheral!.isDisconnected) {
|
||
_resetCharacteristics();
|
||
await connect(currentPeripheral!);
|
||
onReconnectSuccess?.call(currentPeripheral!);
|
||
}
|
||
}
|
||
|
||
Function(BluetoothDevice)? onReconnectSuccess;
|
||
|
||
Future<int?> readRssi(BluetoothDevice device) async {
|
||
if (device.isDisconnected) return null;
|
||
try {
|
||
return await device.readRssi(timeout: 15);
|
||
} catch (e) {
|
||
return null;
|
||
}
|
||
}
|
||
|
||
//MARK: - Resource release
|
||
void dispose() {
|
||
_scanSubscription?.cancel();
|
||
_adapterStateSubscription?.cancel();
|
||
_connectionStateSubscription?.cancel();
|
||
_cleanupTimer?.cancel();
|
||
stopScan();
|
||
disconnectCurrentPeripheral();
|
||
}
|
||
}
|
||
|
||
extension ScanResultListExtension on List<ScanResult> {
|
||
void addOrUpdate(ScanResult result) {
|
||
final index = indexWhere(
|
||
(element) => element.device.remoteId == result.device.remoteId,
|
||
);
|
||
if (index == -1) {
|
||
add(result);
|
||
} else {
|
||
this[index] = result;
|
||
}
|
||
}
|
||
}
|