c# - Xamarin 蓝牙扫描

Question

今天我开始使用 C# 进行开发，我尝试扫描一个信标。这就是我走了多远..

        protected override void OnCreate(Bundle bundle)
    {
        base.OnCreate(bundle);            
        // Set our view from the "main" layout resource
        SetContentView(Resource.Layout.Main);

        BluetoothAdapter oBluetoothAdapter = BluetoothAdapter.DefaultAdapter;
        BluetoothLeScanner oScanner = oBluetoothAdapter.BluetoothLeScanner;

        ScanCallback oCallback;



        if(!oBluetoothAdapter.IsEnabled)
        {
            StartActivity(new Intent(BluetoothAdapter.ActionRequestEnable));
        } 
        else
        {
            oScanner.StartScan(oCallback);
        }
    }

问题是我不知道如何使用 StartScan 函数的回调参数。有人可以告诉我如何正确使用回调吗？

Answer 1

在 android 上的实现是这样的:

_Manager = (BluetoothManager)appContext.GetSystemService("bluetooth");
_Adapter = _Manager.Adapter;
_LeScanner = _Adapter.BluetoothLeScanner;
 _BluetoothScanCallback = new BluetoothScanCallback();

然后当您开始扫描时，它会是这样的:

_LeScanner.StartScan(_BluetoothScanCallback);

其中 BluetoothScanCallback 将使用如下方式实现:

public class BluetoothScanCallback : ScanCallback
{
    public override void OnScanResult([GeneratedEnum] ScanCallbackType callbackType, ScanResult result)
    {
        base.OnScanResult(callbackType, result);
    }
}