如何在Xamarin android中实现circlemenu的界面？

Question

我一直试图在可通过nuget获得的circlemenu库中实现接口：

https://github.com/Hitomis/CircleMenu

在我的xamarin android项目中，我无法调用和实现圆形菜单方法 .SetOnMenuStatusChangeListener（....）和.SetOnMenuStatusChangeListener（....）

中的接口

这是我的xamarin c＃代码

public class mainMenuActivity : Activity,IOnMenuStatusChangeListener,IOnMenuSelectedListener
{
    CircleMenu circleMenu = null;
    public void OnMenuClosed()
    {
        throw new NotImplementedException();
    }

    public void OnMenuOpened()
    {
        throw new NotImplementedException();
    }

    public void OnMenuSelected(int p0)
    {
        Toast.MakeText(this, "selected " + p0, ToastLength.Long).Show();
    }

    protected override void OnCreate(Bundle savedInstanceState)
    {
        base.OnCreate(savedInstanceState);
        SetContentView(Resource.Layout.mainmenu);
        var circleMenu = FindViewById<CircleMenu>(Resource.Id.circle_menu);
        circleMenu.SetMainMenu(Color.ParseColor("#98ccfd"), Resource.Mipmap.menu, Resource.Mipmap.cancel)
            .AddSubMenu(Color.ParseColor("#258CFF"), Resource.Mipmap.scanner)
    .AddSubMenu(Color.ParseColor("#30A400"), Resource.Mipmap.mapmarker)
    .AddSubMenu(Color.ParseColor("#fe9b93"), Resource.Mipmap.support)
    .AddSubMenu(Color.ParseColor("#25b7d3"), Resource.Mipmap.share)
    .AddSubMenu(Color.ParseColor("#f44336"), Resource.Mipmap.shutdown);
        //.SetOnMenuStatusChangeListener();
        this.circleMenu = circleMenu; 
    }
}

显然，在类级别实现该接口不会将其与circlemenu绑定在一起。

这是假定代码的Java版本

     circleMenu = (CircleMenu) findViewById(R.id.circle_menu);

     circleMenu.setMainMenu(Color.parseColor("#CDCDCD"), R.mipmap.icon_menu, 
     R.mipmap.icon_cancel)
    .addSubMenu(Color.parseColor("#258CFF"), R.mipmap.icon_home)
    .addSubMenu(Color.parseColor("#30A400"), R.mipmap.icon_search)
    .addSubMenu(Color.parseColor("#FF4B32"), R.mipmap.icon_notify)
    .addSubMenu(Color.parseColor("#8A39FF"), R.mipmap.icon_setting)
    .addSubMenu(Color.parseColor("#FF6A00"), R.mipmap.icon_gps)
    .setOnMenuSelectedListener(new OnMenuSelectedListener() {

        @Override
        public void onMenuSelected(int index) {}

    }).setOnMenuStatusChangeListener(new OnMenuStatusChangeListener() {

        @Override
        public void onMenuOpened() {}

        @Override
        public void onMenuClosed() {}

    });