寻找一个IOS版的Xamarin.Forms蓝牙库，它可以接收已经配对的设备到我的iphone上。

Install-Package Plugin.BLE

using Plugin.BLE;
using Plugin.BLE.Abstractions.Contracts;

public class BluetoothManager
{
    private readonly IBluetoothManager _bluetoothManager;

    public BluetoothManager()
    {
        _bluetoothManager = CrossBluetoothLE.Current;
    }

    public async Task InitializeAsync()
    {
        var state = await _bluetoothManager.GetConnectionStateAsync();
        if (state != BluetoothConnectionState.Connected)
        {
            // Handle the case where the device is not connected
        }
    }
}

public async Task ScanForDevicesAsync()
{
    var devices = await _bluetoothManager.DiscoverDevicesAsync(10000); // 10 seconds scan time
    foreach (var device in devices)
    {
        // Handle each discovered device
    }
}

public async Task ConnectToDeviceAsync(Guid deviceId)
{
    var device = await _bluetoothManager.GetDeviceAsync(deviceId);
    await device.ConnectAsync();
}

public async Task DiscoverServicesAndCharacteristicsAsync(Guid deviceId)
{
    var device = await _bluetoothManager.GetDeviceAsync(deviceId);
    var services = await device.DiscoverServicesAsync();
    foreach (var service in services)
    {
        var characteristics = await service.DiscoverCharacteristicsAsync();
        foreach (var characteristic in characteristics)
        {
            // Handle each characteristic
        }
    }
}

public async Task ReadCharacteristicValueAsync(Guid deviceId, Guid serviceId, Guid characteristicId)
{
    var device = await _bluetoothManager.GetDeviceAsync(deviceId);
    var service = device.Services.FirstOrDefault(s => s.Id == serviceId);
    var characteristic = service.Characteristics.FirstOrDefault(c => c.Id == characteristicId);
    var value = await characteristic.ReadAsync();
}

public async Task WriteCharacteristicValueAsync(Guid deviceId, Guid serviceId, Guid characteristicId, byte[] value)
{
    var device = await _bluetoothManager.GetDeviceAsync(deviceId);
    var service = device.Services.FirstOrDefault(s => s.Id == serviceId);
    var characteristic = service.Characteristics.FirstOrDefault(c => c.Id == characteristicId);
    await characteristic.WriteAsync(value);
}