708 lines
26 KiB
Dart
708 lines
26 KiB
Dart
import 'dart:async';
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import 'dart:io';
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import 'package:flutter_easyloading/flutter_easyloading.dart';
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import 'package:get/get.dart';
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import 'package:star_lock/app_settings/app_settings.dart';
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import 'io_tool/io_model.dart';
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import 'io_tool/io_tool.dart';
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import 'io_tool/manager_event_bus.dart';
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import 'reciver_data.dart';
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import 'package:flutter_blue_plus/flutter_blue_plus.dart';
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//连接状态回调
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typedef ConnectStateCallBack = Function(
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BluetoothConnectionState connectionState);
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typedef ScanDevicesCallBack = Function(List<ScanResult>);
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class BlueManage {
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final List<ScanResult> scanDevices = [];
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// 用来写入的服务id
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final Guid _serviceIdConnect = Guid("fff0");
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// 用来写入的服务id
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final Guid _serviceIdWrite = Guid('0000FFF0-0000-1000-8000-00805F9B34FB');
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// 用来订阅的特征id
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final Guid _characteristicIdSubscription = Guid("fff1");
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// 用来写入的特征id
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final Guid _characteristicIdWrite = Guid("fff2");
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// 监听发送事件
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StreamSubscription<EventSendModel>? _sendStreamSubscription;
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// 监听蓝牙扫描的事件
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// StreamSubscription? _scanSubscription;
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// 监听蓝牙连接的事件
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// StreamSubscription<dynamic>? _currentConnectionStream;
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// StreamSubscription<List<ScanResult>>? _scanResultsSubscription;
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StreamSubscription<BluetoothConnectionState>? _connectionStateSubscription;
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StreamSubscription<int>? _mtuSubscription;
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int? _mtuSize = 20;
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// 当前连接设备的名字
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String connectDeviceName = "";
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// 当前连接设备的mac地址
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String connectDeviceMacAddress = "";
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// 当前连接的设备
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BluetoothDevice? bluetoothConnectDevice;
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// 当前扫描到结果要连接设备
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ScanResult? scanResult;
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// 监听蓝牙连接状态
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BluetoothConnectionState? bluetoothConnectionState =
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BluetoothConnectionState.disconnected;
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BluetoothAdapterState? _adapterState = BluetoothAdapterState.unknown;
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StreamSubscription<BluetoothAdapterState>? _adapterStateStateSubscription;
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static BlueManage? _manager;
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BlueManage._init() {
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_initBlue();
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}
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static BlueManage? shareManager() {
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_manager ??= BlueManage._init();
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// _manager!._initBlue();
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return _manager;
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}
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factory BlueManage() => shareManager()!;
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BlueManage? get manager => shareManager();
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void _initBlue() {
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FlutterBluePlus.setLogLevel(LogLevel.error, color: true);
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_initSendStreamSubscription();
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_initAdapterStateStateSubscription();
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// _initListenscanResults();
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// _initListenConnectionState();
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}
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void _initGetMtuSubscription() {
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_mtuSubscription ??= bluetoothConnectDevice!.mtu.listen((value) {
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_mtuSize = value - 3;
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AppLog.log('_mtuSizeValue:$value mtuSize:$_mtuSize');
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});
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}
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void _initAdapterStateStateSubscription() {
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_adapterStateStateSubscription ??=
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FlutterBluePlus.adapterState.listen((state) {
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_adapterState = state;
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});
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}
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// void _initListenscanResults() {
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// var subscription = FlutterBluePlus.scanResults.listen((results) {
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// scanDevices.clear();
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// for (var scanResult in results) {
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// // 判断名字为空的直接剔除
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// // if (scanResult.device.advName.isEmpty) {
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// // return;
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// // }
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// AppLog.log("scanResult.device.advName:${scanResult.device.advName}"
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// " scanResult.advertisementData.serviceUuids:${scanResult.advertisementData.serviceUuids}"
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// " rssi:${scanResult.rssi}");
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// if (((scanResult.advertisementData.serviceUuids.isNotEmpty ? scanResult.advertisementData.serviceUuids[0] : "").toString().contains("758824")) && (scanResult.rssi >= -100)) {
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// // 查询id相同的元素
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// final knownDeviceIndex = scanDevices.indexWhere((d) => d.advertisementData.advName == scanResult.advertisementData.advName);
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// // 不存在的时候返回-1
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// if (knownDeviceIndex >= 0) {
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// scanDevices[knownDeviceIndex] = scanResult;
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// } else {
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// scanDevices.add(scanResult);
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// }
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// }
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// }
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// EventBusManager().eventBusFir(scanDevices);
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// // FlutterBluePlus.stopScan();
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// }, onError: (e) {
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// AppLog.log("Scan Error:$e", );
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// });
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//
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// FlutterBluePlus.cancelWhenScanComplete(subscription);
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// FlutterBluePlus.isScanning.listen((state) {
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// if (state) {
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// prAppLog.logint('Scanning');
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// } else {
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// AppLog.log('Not scanning');
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// }
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// });
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// }
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void _initListenConnectionState() {
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_connectionStateSubscription?.cancel();
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_connectionStateSubscription = null;
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_connectionStateSubscription =
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bluetoothConnectDevice!.connectionState.listen((state) async {
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bluetoothConnectionState = state;
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// AppLog.log("蓝牙连接状态:$state");
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});
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}
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void _initSendStreamSubscription() {
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_sendStreamSubscription ??= EventBusManager()
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.eventBus!
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.on<EventSendModel>()
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.listen((EventSendModel model) {
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if (model.sendChannel == DataChannel.ble) {
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FlutterBluePlus.isSupported.then((isAvailable) async {
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if (isAvailable) {
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if (_adapterState == BluetoothAdapterState.on) {
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// 蓝牙已开启，可以进行蓝牙操作
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writeCharacteristicWithResponse(model.data);
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} else {
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try {} catch (e) {
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AppLog.log("蓝牙打开失败");
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}
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}
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} else {
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AppLog.log("写入数据 蓝牙不可用，不能进行蓝牙操作");
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}
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});
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}
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});
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}
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/// 开始指定设备名称的扫描蓝牙设备
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Future<void> startScanSingle(String deviceName, int timeout,
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ScanDevicesCallBack scanDevicesCallBack) async {
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FlutterBluePlus.isSupported.then((isAvailable) async {
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if (isAvailable) {
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if (_adapterState == BluetoothAdapterState.on) {
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try {
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FlutterBluePlus.startScan(timeout: Duration(seconds: timeout));
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Completer<dynamic> completer = Completer<dynamic>();
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var subscription = FlutterBluePlus.scanResults.listen((results) {
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// AppLog.log("startScanSingle扫描到的设备:$results");
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bool isExit = results.any((element) =>
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(element.device.platformName == deviceName) ||
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(element.advertisementData.advName == deviceName));
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if (isExit) {
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for (var scanResult in results) {
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if (((scanResult.advertisementData.serviceUuids.isNotEmpty
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? scanResult.advertisementData.serviceUuids[0]
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: "")
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.toString()
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.contains("758824")) &&
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(scanResult.rssi >= -100)) {
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// 查询id相同的元素
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final knownDeviceIndex = scanDevices.indexWhere((d) =>
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(d.device.platformName ==
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scanResult.device.platformName) ||
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(d.advertisementData.advName ==
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scanResult.advertisementData.advName));
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// 不存在的时候返回-1
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if (knownDeviceIndex >= 0) {
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scanDevices[knownDeviceIndex] = scanResult;
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} else {
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scanDevices.add(scanResult);
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}
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}
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}
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completer.complete();
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}
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}, onError: (e) {
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AppLog.log(
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"扫描失败:$e",
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);
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});
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FlutterBluePlus.cancelWhenScanComplete(subscription);
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await completer.future;
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scanDevicesCallBack(scanDevices);
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subscription.cancel();
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} catch (e) {
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AppLog.log("扫描失败");
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}
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} else {
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try {
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if (Platform.isAndroid) {
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await FlutterBluePlus.turnOn();
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}
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} catch (e) {
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AppLog.log("蓝牙打开失败");
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}
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}
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} else {
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AppLog.log("开始扫描 蓝牙不可用，不能进行蓝牙操作");
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}
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});
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}
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/// 开始扫描蓝牙设备
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Future<void> startScan(int timeout, ScanDevicesCallBack scanDevicesCallBack,
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{List<Guid>? idList}) async {
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FlutterBluePlus.isSupported.then((isAvailable) async {
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if (isAvailable) {
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if (_adapterState == BluetoothAdapterState.on) {
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try {
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FlutterBluePlus.startScan(timeout: Duration(seconds: timeout));
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var subscription = FlutterBluePlus.scanResults.listen((results) {
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scanDevices.clear();
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for (var scanResult in results) {
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// 判断名字为空的直接剔除
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// if (scanResult.device.advName.isEmpty) {
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// return;
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// }
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// AppLog.log("scanResult.device.advName:${scanResult.device.advName}"
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// " scanResult.advertisementData.serviceUuids:${scanResult.advertisementData.serviceUuids}"
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// " rssi:${scanResult.rssi}");
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if (((scanResult.advertisementData.serviceUuids.isNotEmpty
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? scanResult.advertisementData.serviceUuids[0]
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: "")
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.toString()
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.contains("758824")) &&
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(scanResult.rssi >= -100)) {
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// 查询id相同的元素
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final knownDeviceIndex = scanDevices.indexWhere((d) =>
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(d.device.platformName ==
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scanResult.device.platformName) ||
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(d.advertisementData.advName ==
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scanResult.advertisementData.advName));
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// 不存在的时候返回-1
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if (knownDeviceIndex >= 0) {
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scanDevices[knownDeviceIndex] = scanResult;
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} else {
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scanDevices.add(scanResult);
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}
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}
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}
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scanDevicesCallBack(scanDevices);
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// EventBusManager().eventBusFir(scanDevices);
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// FlutterBluePlus.stopScan();
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}, onError: (e) {
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AppLog.log(
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"扫描失败:$e",
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);
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});
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FlutterBluePlus.cancelWhenScanComplete(subscription);
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} catch (e) {
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AppLog.log("扫描失败");
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}
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} else {
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try {
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if (Platform.isAndroid) {
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await FlutterBluePlus.turnOn();
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}
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} catch (e) {
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AppLog.log("蓝牙打开失败");
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}
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}
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} else {
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AppLog.log("开始扫描 蓝牙不可用，不能进行蓝牙操作");
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}
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});
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}
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/// 调用发送数据 List senderData,
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Future<void> bludSendData(
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String deviceName, ConnectStateCallBack stateCallBack,
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{bool isAddEquipment = false}) async {
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FlutterBluePlus.isSupported.then((isAvailable) async {
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if (isAvailable) {
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if (_adapterState == BluetoothAdapterState.on) {
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// 蓝牙已开启，可以进行蓝牙操作
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if (bluetoothConnectionState != BluetoothConnectionState.connected) {
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_connect(deviceName, (state) {
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stateCallBack(bluetoothConnectionState!);
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}, isAddEquipment: isAddEquipment);
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} else {
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stateCallBack(bluetoothConnectionState!);
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}
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} else {
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try {
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stateCallBack(BluetoothConnectionState.disconnected);
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openBlue();
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} catch (e) {
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AppLog.log("蓝牙打开失败");
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}
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}
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} else {
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AppLog.log("开始扫描 蓝牙不可用，不能进行蓝牙操作");
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}
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});
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}
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/// 连接
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Future<void> _connect(
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String deviceName, ConnectStateCallBack connectStateCallBack,
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{bool isAddEquipment = false}) async {
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connectDeviceName = deviceName;
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List<ScanResult> devicesList = scanDevices;
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if (isAddEquipment == false) {
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//取消缓存直接使用，存在配对场景设备信息会更变
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startScan(10, (List<ScanResult> scanDevices) {
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_connectDevice(devicesList, deviceName, connectStateCallBack,
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isAddEquipment: isAddEquipment);
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});
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} else {
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_connectDevice(devicesList, deviceName, connectStateCallBack,
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isAddEquipment: isAddEquipment);
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}
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}
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Future<void> _connectDevice(List<ScanResult> devicesList, String deviceName,
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ConnectStateCallBack connectStateCallBack,
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{bool isAddEquipment = false}) async {
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// 判断数组列表里面是否有这个设备
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// AppLog.log("devicesList:$devicesList");
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final knownDeviceIndex = devicesList.indexWhere((d) =>
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(d.device.platformName == deviceName) ||
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(d.advertisementData.advName == deviceName));
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if (knownDeviceIndex >= 0) {
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// 存在的时候赋值
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connectDeviceMacAddress =
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devicesList[knownDeviceIndex].advertisementData.advName.isNotEmpty
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? devicesList[knownDeviceIndex].advertisementData.advName
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: devicesList[knownDeviceIndex].device.platformName;
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bluetoothConnectDevice = devicesList[knownDeviceIndex].device;
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// AppLog.log('bluetoothConnectDevice: $bluetoothConnectDevice');
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scanResult = devicesList[knownDeviceIndex];
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_initGetMtuSubscription();
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_initListenConnectionState();
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}
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// AppLog.log("1 connectDeviceId:$connectDeviceMacAddress connectDeviceName:$connectDeviceName");
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// stopScan();
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if (connectDeviceMacAddress.isEmpty) {
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// connectStateCallBack(BluetoothConnectionState.disconnected!);
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return;
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}
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// AppLog.log("调用了停止扫描的方法");
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await stopScan();
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if ((scanResult!.advertisementData.serviceUuids[0].toString()[31] == "0") &&
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isAddEquipment == false) {
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connectStateCallBack(BluetoothConnectionState.disconnected);
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EasyLoading.showToast("该锁已被重置".tr, duration: 2000.milliseconds);
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return;
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}
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// 重连三次
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int maxAttempts = 3;
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int attempt = 0;
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while (attempt < maxAttempts) {
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try {
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await bluetoothConnectDevice!.connect(timeout: 5.seconds);
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break; // If the connection is successful, break the loop
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} catch (e) {
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AppLog.log('连接失败 重连了: $e');
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attempt++; // Increase the attempt count
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if (attempt < maxAttempts) {
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AppLog.log('重新尝试连接...');
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}
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}
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}
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if (attempt >= maxAttempts) {
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AppLog.log('$maxAttempts次后尝试连接失败');
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connectStateCallBack(BluetoothConnectionState.disconnected);
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}
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// await bluetoothConnectDevice!.connect();
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if (bluetoothConnectionState == BluetoothConnectionState.connected) {
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try {
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bluetoothConnectDevice!.discoverServices().then((services) {
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for (BluetoothService service in services) {
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// AppLog.log("11111service.remoteId:${service.remoteId}"
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// " service.uuid:${service.uuid}"
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// " service.characteristics:${service.characteristics}"
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// " service.includedServices:${service.includedServices}");
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if (service.uuid == _serviceIdConnect) {
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for (BluetoothCharacteristic characteristic
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in service.characteristics) {
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// Get.log("22222characteristic.remoteId:${characteristic.remoteId}"
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// " characteristic.uuid:${characteristic.uuid}"
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// " characteristic.secondaryServiceUuid:${characteristic.secondaryServiceUuid}"
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// " characteristic.characteristicUuid:${characteristic.characteristicUuid}");
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if (characteristic.characteristicUuid ==
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_characteristicIdSubscription) {
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_subScribeToCharacteristic(characteristic);
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// AppLog.log('Discovering services finished');
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bluetoothConnectionState = BluetoothConnectionState.connected;
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connectStateCallBack(bluetoothConnectionState!);
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}
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}
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}
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}
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});
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} on Exception catch (e) {
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bluetoothConnectionState = BluetoothConnectionState.disconnected;
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connectStateCallBack(bluetoothConnectionState!);
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AppLog.log(
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'发现设备时失败 e:$e bluetoothConnectionState:$bluetoothConnectionState');
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rethrow;
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}
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}
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}
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// 听上报来的数据,参数来自前面扫描到的结果
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var allData = <int>[];
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// 保存上一次的数据，用来判断是否收到重复的数据
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var lastTimeData = <int>[];
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int? dataLen;
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_subScribeToCharacteristic(BluetoothCharacteristic characteristic) async {
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final subscription = characteristic.onValueReceived.listen((data) {
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AppLog.log("订阅获取的数据：$data");
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if (data == lastTimeData || data.isEmpty) {
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return;
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} else {
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lastTimeData = data;
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}
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// code to handle incoming data
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// AppLog.log("subscribeToCharacteristic: deviceId = ${characteristic.deviceId} characteristicId =${characteristic.characteristicId}---上报来的数据data = $data");
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if ((data[0] == 0xEF) &&
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(data[1] == 0x01) &&
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(data[2] == 0xEE) &&
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(data[3] == 0x02)) {
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// 当包有头时
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// 判断是否需要分包
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dataLen = data[8] * 256 + data[9]; // 高16位用来指示后面数据块内容的长度
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// AppLog.log("dataLen1111:$dataLen getDataLength:${data.length} data:$data");
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if (dataLen! + 14 > data.length) {
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// 当前包的长度小于实际的包时 分包添加 不解析
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allData.addAll(data);
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} else {
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// 当前包的长度小于实际的包时 不分包 解析
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allData.addAll(data);
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// AppLog.log("dataLen2222:$dataLen getDataLength:${data.length}");
|
|
CommandReciverManager.appDataReceive(allData);
|
|
// 发送完解析初始化数组
|
|
allData = <int>[];
|
|
}
|
|
} else {
|
|
// 当包没有头时 是分包的包 直接添加
|
|
allData.addAll(data);
|
|
// var len = allData[8] * 256 + allData[9];
|
|
AppLog.log("dataLen3333:$dataLen allData.length:${allData.length} allData:$allData");
|
|
if ((dataLen! + 14) <= allData.length) {
|
|
// 当长度小于等于当前包的数据时 直接解析数据
|
|
CommandReciverManager.appDataReceive(allData);
|
|
// 发送完解析初始化数组
|
|
allData = <int>[];
|
|
}
|
|
}
|
|
});
|
|
|
|
// cleanup: cancel subscription when disconnected
|
|
bluetoothConnectDevice!.cancelWhenDisconnected(subscription);
|
|
|
|
// enable notifications
|
|
await characteristic.setNotifyValue(true);
|
|
|
|
// characteristic.setNotifyValue(true).then((_) {
|
|
// AppLog.log("启动对特性的通知。当特性的值发生变化时，设备会发送一个通知");
|
|
// characteristic.lastValueStream.listen((data) {
|
|
// AppLog.log("订阅获取的数据：$data");
|
|
// // do something with new value
|
|
// if(data == lastTimeData || data.isEmpty){
|
|
// return;
|
|
// }else{
|
|
// lastTimeData = data;
|
|
// }
|
|
// // code to handle incoming data
|
|
// // AppLog.log("subscribeToCharacteristic: deviceId = ${characteristic.deviceId} characteristicId =${characteristic.characteristicId}---上报来的数据data = $data");
|
|
// if ((data[0] == 0xEF) && (data[1] == 0x01) && (data[2] == 0xEE) && (data[3] == 0x02)) {
|
|
// // 当包有头时
|
|
// // 判断是否需要分包
|
|
// dataLen = data[8] * 256 + data[9]; // 高16位用来指示后面数据块内容的长度
|
|
// // AppLog.log("dataLen1111:$dataLen getDataLength:${data.length}");
|
|
// if (dataLen! + 12 > data.length) {
|
|
// // 当前包的长度小于实际的包时 分包添加 不解析
|
|
// allData.addAll(data);
|
|
// } else {
|
|
// // 当前包的长度小于实际的包时 不分包 解析
|
|
// allData.addAll(data);
|
|
// // AppLog.log("dataLen2222:$dataLen getDataLength:${data.length}");
|
|
// CommandReciverManager.appDataReceive(allData);
|
|
// // 发送完解析初始化数组
|
|
// allData = <int>[];
|
|
// }
|
|
// } else {
|
|
// // 当包没有头时 是分包的包 直接添加
|
|
// allData.addAll(data);
|
|
// // var len = allData[8] * 256 + allData[9];
|
|
// // AppLog.log("dataLen3333:$dataLen");
|
|
// if ((dataLen! + 14) <= allData.length) {
|
|
// // AppLog.log("44444数据被解析了");
|
|
// // 当长度小于等于当前包的数据时 直接解析数据
|
|
// CommandReciverManager.appDataReceive(allData);
|
|
// // 发送完解析初始化数组
|
|
// allData = <int>[];
|
|
// }
|
|
// }
|
|
// });
|
|
// });
|
|
}
|
|
|
|
// 写入
|
|
Future<void> writeCharacteristicWithResponse(List<int> value) async {
|
|
List<BluetoothService> services =
|
|
await bluetoothConnectDevice!.discoverServices();
|
|
for (BluetoothService service in services) {
|
|
// AppLog.log("33333 service.remoteId:${service.remoteId}"
|
|
// " service.uuid:${service.uuid}\n\n"
|
|
// " service.characteristics:${service.characteristics}\n\n"
|
|
// " service.includedServices:${service.includedServices}");
|
|
if (service.uuid == _serviceIdConnect) {
|
|
for (BluetoothCharacteristic characteristic
|
|
in service.characteristics) {
|
|
// AppLog.log("44444 characteristic.remoteId:${characteristic.remoteId}"
|
|
// " characteristic.uuid:${characteristic.uuid}\n\n"
|
|
// " characteristic.secondaryServiceUuid:${characteristic
|
|
// .secondaryServiceUuid}\n\n"
|
|
// " characteristic.characteristicUuid:${characteristic
|
|
// .characteristicUuid}");
|
|
if (characteristic.characteristicUuid == _characteristicIdWrite) {
|
|
try {
|
|
List<int> valueList = value;
|
|
List subData = splitList(valueList, _mtuSize!);
|
|
// AppLog.log('writeCharacteristicWithResponse _mtuSize:$_mtuSize 得到的分割数据:$subData');
|
|
for (int i = 0; i < subData.length; i++) {
|
|
if (characteristic.properties.writeWithoutResponse) {
|
|
// 使用WRITE_NO_RESPONSE属性写入值
|
|
await characteristic
|
|
.write(subData[i], withoutResponse: true)
|
|
.then((value) async {
|
|
// await Future.delayed(const Duration(milliseconds: 1)).then((
|
|
// value) async {
|
|
// AppLog.log('分包发送成功了');
|
|
// });
|
|
});
|
|
} else if (characteristic.properties.write) {
|
|
// 使用WRITE属性写入值
|
|
await characteristic.write(subData[i]).then((value) async {
|
|
// await Future.delayed(const Duration(milliseconds: 1)).then((
|
|
// value) async {
|
|
// AppLog.log('分包发送成功了');
|
|
// });
|
|
});
|
|
} else {
|
|
// 特性不支持写入
|
|
throw Exception(
|
|
'This characteristic does not support writing.');
|
|
}
|
|
}
|
|
} on Exception catch (e, s) {
|
|
AppLog.log('APP写入失败: $e');
|
|
rethrow;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// List<BluetoothService> services = await bluetoothConnectDevice!.discoverServices();
|
|
// BluetoothCharacteristic characteristic = services
|
|
// .firstWhere((service) => service.uuid == _serviceIdWrite)
|
|
// .characteristics
|
|
// .firstWhere((char) => char.uuid == _characteristicIdWrite);
|
|
// try {
|
|
// List<int> valueList = value;
|
|
// List subData = splitList(valueList, _mtuSize!);
|
|
// AppLog.log('writeCharacteristicWithResponse 得到的分割数据:$subData');
|
|
//
|
|
// for (int i = 0; i < subData.length; i++) {
|
|
// await characteristic.write(subData[i]).then((value) async {
|
|
// await Future.delayed(const Duration(milliseconds: 1)).then((value) async {
|
|
// AppLog.log('分包发送成功了');
|
|
// });
|
|
// });
|
|
// }
|
|
// } on Exception catch (e, s) {
|
|
// AppLog.log('Error occurred when writing: $e');
|
|
// AppLog.log(s);
|
|
// rethrow;
|
|
// }
|
|
}
|
|
|
|
// 读取
|
|
// Future<List<int>> _readCharacteristic(QualifiedCharacteristic characteristic) async {
|
|
// try {
|
|
// final result =
|
|
// await _flutterReactiveBle!.readCharacteristic(characteristic);
|
|
// AppLog.log("readListresult$result");
|
|
// return result;
|
|
// } on Exception catch (e, s) {
|
|
// AppLog.log(
|
|
// 'Error occurred when reading ${characteristic.characteristicId} : $e',
|
|
// );
|
|
// rethrow;
|
|
// }
|
|
// }
|
|
|
|
// Future<void> writeCharacteristicWithoutResponse(
|
|
// QualifiedCharacteristic characteristic, List<int> value) async {
|
|
// try {
|
|
// await _flutterReactiveBle!
|
|
// .writeCharacteristicWithoutResponse(characteristic, value: value);
|
|
// } on Exception catch (e, s) {
|
|
// // ignore: avoid_print
|
|
// AppLog.log(s);
|
|
// rethrow;
|
|
// }
|
|
// }
|
|
|
|
// 停止扫描蓝牙设备
|
|
Future<void> stopScan() async {
|
|
try {
|
|
await FlutterBluePlus.stopScan();
|
|
} catch (e) {
|
|
AppLog.log("停止扫描失败");
|
|
}
|
|
}
|
|
|
|
// 断开连接
|
|
Future<void> disconnect() async {
|
|
try {
|
|
// if(bluetoothConnectDevice != null && bluetoothConnectDevice!.connectionState == BluetoothConnectionState.connected){
|
|
connectDeviceMacAddress = "";
|
|
if (bluetoothConnectionState == BluetoothConnectionState.connected) {
|
|
await bluetoothConnectDevice!.disconnect();
|
|
AppLog.log("断开连接成功");
|
|
}
|
|
// }
|
|
} on Exception catch (e, _) {
|
|
AppLog.log("断开连接失败: $e");
|
|
} finally {
|
|
bluetoothConnectionState = BluetoothConnectionState.disconnected;
|
|
}
|
|
}
|
|
|
|
openBlue() async {
|
|
if (Platform.isAndroid) {
|
|
await FlutterBluePlus.turnOn();
|
|
}
|
|
if (Platform.isIOS) {
|
|
EasyLoading.showToast("请开启蓝牙", duration: 2000.milliseconds);
|
|
}
|
|
}
|
|
|
|
disposed() {
|
|
_sendStreamSubscription?.cancel();
|
|
_mtuSubscription!.cancel();
|
|
// _scanResultsSubscription!.cancel();
|
|
_adapterStateStateSubscription!.cancel();
|
|
_connectionStateSubscription!.cancel();
|
|
}
|
|
}
|