Xamarin安卓:在RecyclerView上从本地路径加载图像

public class MyAdapter : RecyclerView.Adapter
{
    private List<string> imagePaths;

    public MyAdapter(List<string> paths)
    {
        imagePaths = paths;
    }

    public override RecyclerView.ViewHolder OnCreateViewHolder(ViewGroup parent, int viewType)
    {
        View itemView = LayoutInflater.From(parent.Context).Inflate(Resource.Layout.MyItemLayout, parent, false);
        MyViewHolder viewHolder = new MyViewHolder(itemView);
        return viewHolder;
    }

    public override void OnBindViewHolder(RecyclerView.ViewHolder holder, int position)
    {
        MyViewHolder viewHolder = holder as MyViewHolder;
        string imagePath = imagePaths[position];

        Bitmap bitmap = BitmapFactory.DecodeFile(imagePath);
        viewHolder.ImageView.SetImageBitmap(bitmap);
    }

    public override int ItemCount => imagePaths.Count;
}

public class MyViewHolder : RecyclerView.ViewHolder
{
    public ImageView ImageView { get; private set; }

    public MyViewHolder(View itemView) : base(itemView)
    {
        ImageView = itemView.FindViewById<ImageView>(Resource.Id.imageView);
    }
}