protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
SetContentView(Resource.Layout.Main);
ViewPager viewPager = FindViewById <ViewPager>(Resource.Id.viewpager);
TreeCatalog treeCatalog = new TreeCatalog();
viewPager.Adapter = new TreePagerAdapter(this, treeCatalog);
viewPager.SetCurrentItem(1, false);
var dots = FindViewById <TabLayout>(Resource.Id.dots);
dots.SetupWithViewPager(viewPager, true); // <- magic here
}
public TreePagerAdapter(Context context, TreeCatalog treeCatalog)
{
this.context = context;
this.treeCatalog = treeCatalog;
}