如何在xamarin android中更改SimpleListItemSingleChoice列表视图的单选按钮颜色

public class CustomAdapter : ArrayAdapter<string>
{
    private int mSelectedIndex = -1;

    public CustomAdapter(Context context, int resource, string[] objects) 
        : base(context, resource, objects)
    {
    }

    public void SetSelectedIndex(int index)
    {
        mSelectedIndex = index;
        NotifyDataSetChanged();
    }

    public override View GetView(int position, View convertView, ViewGroup parent)
    {
        View view = base.GetView(position, convertView, parent);

        if (position == mSelectedIndex)
        {
            // 设置选中项的单选按钮颜色
            view.SetBackgroundColor(Color.LightBlue);
        }
        else
        {
            // 设置其他项的单选按钮颜色
            view.SetBackgroundColor(Color.Transparent);
        }

        return view;
    }
}

public class MainActivity : Activity
{
    private ListView mListView;
    private CustomAdapter mAdapter;

    protected override void OnCreate(Bundle savedInstanceState)
    {
        base.OnCreate(savedInstanceState);
        SetContentView(Resource.Layout.activity_main);

        // 初始化数据源
        string[] data = new string[] { "Item 1", "Item 2", "Item 3", "Item 4" };

        // 初始化适配器
        mAdapter = new CustomAdapter(this, Android.Resource.Layout.SimpleListItemSingleChoice, data);

        // 设置列表视图的适配器
        mListView = FindViewById<ListView>(Resource.Id.listView);
        mListView.Adapter = mAdapter;

        // 设置列表视图的选择模式为单选
        mListView.ChoiceMode = ChoiceMode.Single;
        mListView.SetItemChecked(0, true); // 默认选中第一项

        // 监听列表项的点击事件
        mListView.ItemClick += (sender, e) =>
        {
            mAdapter.SetSelectedIndex(e.Position);
        };
    }
}