在Xamarin.android上捕获屏幕获取黑屏-使用Libvlc

using LibVLCSharp.Shared;

public class MainActivity : AppCompatActivity
{
    private LibVLC _libVLC;
    private MediaPlayer _mediaPlayer;

    protected override void OnCreate(Bundle savedInstanceState)
    {
        base.OnCreate(savedInstanceState);
        // ...

        Core.Initialize();

        _libVLC = new LibVLC();
        _mediaPlayer = new MediaPlayer(_libVLC);
    }

    // ...
}

using Android.Views;

public class MainActivity : AppCompatActivity, ISurfaceHolderCallback
{
    // ...

    private SurfaceView _surfaceView;
    private SurfaceHolder _surfaceHolder;

    protected override void OnCreate(Bundle savedInstanceState)
    {
        base.OnCreate(savedInstanceState);
        // ...

        _surfaceView = FindViewById<SurfaceView>(Resource.Id.surfaceView);
        _surfaceHolder = _surfaceView.Holder;
        _surfaceHolder.AddCallback(this);
    }

    public void SurfaceCreated(ISurfaceHolder holder)
    {
        _mediaPlayer.SetVideoSurface(holder.Surface);
        _mediaPlayer.Play();
    }

    public void SurfaceChanged(ISurfaceHolder holder, [GeneratedEnum] Format format, int width, int height)
    {
        // Do nothing
    }

    public void SurfaceDestroyed(ISurfaceHolder holder)
    {
        _mediaPlayer.Stop();
    }

    // ...
}

<SurfaceView
    android:id="@+id/surfaceView"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />