如何在xamarin原生android中为列表视图中的项目着色

public class CustomAdapter : BaseAdapter<string>
{
    private List<string> items;
    private Context context;

    public CustomAdapter(Context context, List<string> items)
    {
        this.context = context;
        this.items = items;
    }

    public override string this[int position] => items[position];

    public override int Count => items.Count;

    public override long GetItemId(int position) => position;

    public override View GetView(int position, View convertView, ViewGroup parent)
    {
        View view = convertView;
        if (view == null)
        {
            view = LayoutInflater.From(context).Inflate(Android.Resource.Layout.SimpleListItem1, null);
        }

        // 获取对应位置的数据
        string item = items[position];

        // 设置列表项的文本
        TextView textView = view.FindViewById<TextView>(Android.Resource.Id.Text1);
        textView.Text = item;

        // 根据需要进行着色
        if (position % 2 == 0)
        {
            textView.SetTextColor(Android.Graphics.Color.Red);
        }
        else
        {
            textView.SetTextColor(Android.Graphics.Color.Blue);
        }

        return view;
    }
}

public class MainActivity : Activity
{
    private ListView listView;
    private List<string> items;

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

        listView = FindViewById<ListView>(Resource.Id.listView);

        // 初始化数据源
        items = new List<string>
        {
            "Item 1",
            "Item 2",
            "Item 3",
            "Item 4",
            "Item 5"
        };

        // 实例化自定义适配器
        CustomAdapter adapter = new CustomAdapter(this, items);

        // 设置适配器
        listView.Adapter = adapter;
    }
}