private async Task <bool> checkUserRegistrationAsync()
{
var userId = App.Settings.Values["userID"].ToString();
var people = await FaceApiService.GetPeopleInGroupAsync(personGroupId);
if (people.Count == 0)
{
return(false); // no users yet
}
var res = (from p in people
where JsonConvert.DeserializeObject <UserData>(p.userData.DecodeBase64()).UserId == userId
select p).FirstOrDefault();
if (res == null)
{
return(false); // user not registered
}
else
{
currentPerson = res;
return(true);
}
}