PeopleListFragment.cs

public class PeopleListFragment : ListFragment
{
    private List<Person> _peopleList;

    public override void OnActivityCreated(Bundle savedInstanceState)
    {
        base.OnActivityCreated(savedInstanceState);

        InitializePeopleList();
    }

    public override void OnStart()
    {
        base.OnStart();
        InitializePeopleList();
    }

    protected async void InitializePeopleList()
    {
        _peopleList = await GetPeopleAsync();

        this.ListAdapter = new ArrayAdapter<string>(Activity, Android.Resource.Layout.SimpleListItem1, _peopleList.ConvertAll(p => p.ToString()));

        InitializeUserControlsEvents();
    }


    private async Task<List<Person>> GetPeopleAsync()
    {
        var repo = new Repository<Person>();

        var people = await repo.GetAll();

        return people.ToList();
    }

    private void InitializeUserControlsEvents()
    {
        this.ListView.ItemClick += ListView_ItemClick;
    }

    private void ListView_ItemClick(object sender, AdapterView.ItemClickEventArgs e)
    {
        var person = _peopleList[e.Position];

        var uri = Android.Net.Uri.Parse("tel:" + person.PhoneNumber);

        var intent = new Intent(Intent.ActionDial, uri);

        StartActivity(intent);
    }
}