我无法在flutter应用程序中获得iOS中的蓝牙打印机列表。
该应用程序在Android中运行完美，我也能够从Android设备打印。
我正在使用一个名为flutter_blue_plus 1.5.2的软件包，我安装在pubspec.yaml中：

-> flutter_blue_plus: ^1.3.1

我的iOS信息.plist

<key>NSBluetoothAlwaysUsageDescription</key> 
    <string>Need BLE permission</string> 
    <key> NSBluetoothPeripheralUsageDescription</key>
    <string>Need BLE permission</string>
    <key>NSLocationAlwaysAndWhenInUseUsageDescription</key> 
    <string> Need Location permission</string>
    <key>NSLocationAlwaysUsageDescription</key> 
    <string>Need Location permission</string> 
    <key NSLocationWhenInUseUsageDescription</key>
    <string>Need Location permission</string>
    <key>NSBluetoothAlwaysUsageDescription</key>
    <string>This app uses bluetooth</string>

我正在扫描蓝牙设备，如下所示：

FlutterBluePlus flutterBlue = FlutterBluePlus.instance;
  List<ScanResult> scanResult;

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

  void findDevices() {
    // if(await Permission.b)
    if (flutterBlue.isOn != null) {
      flutterBlue.startScan(timeout: const Duration(seconds: 4));
      flutterBlue.scanResults.listen((results) {
        setState(() {
          scanResult = results;
        });
      });
      flutterBlue.stopScan();
    }
  }

我得到的错误，而试图调试应用程序在我们的iOS

2023-05-26 00:30:01.250916+0530 Runner[1044:250516] [CoreBluetooth] API MISUSE: <CBCentralManager: 0x282d5c000> can only accept this command while in the powered on state
2023-05-26 00:30:01.288553+0530 Runner[1044:250516] [CoreBluetooth] API MISUSE: <CBCentralManager: 0x282d5c000> can only accept this command while in the powered on state