private async void Answer(object sender, EventArgs args, RecyclerView QuestionsRecView)
{
//if correct
var userAns = Tickets.ElementAt(Position).Answers.FirstOrDefault(o => o.Ans == (sender as TextView).Text);
(sender as TextView).SetBackgroundColor(userAns.Correct ? Color.Green : Color.Red);
//if not correct
QuestionsRecView.GetChildAt(Tickets.ElementAt(Position).Answers.IndexOf(Tickets.ElementAt(Position).Answers.First(o => o.Correct))).FindViewById <TextView>(Resource.Id.AnsTxt).SetBackgroundColor(Color.Green);
//add user answer
Answers.Add(userAns.Ans);
//if not correct
//correct or incorect count detect
_ = Tickets.ElementAt(Position).Answers.FirstOrDefault(o => o.Ans == (sender as TextView).Text).Correct ? CorrectAns++ : FailedAns++;
//disable all answers
for (int i = 0; i < QuestionsRecView.ChildCount; i++)
{
QuestionsRecView.GetChildAt(i).FindViewById <TextView>(Resource.Id.AnsTxt).Enabled = false;
}
//cor ans
CorAns.Text = CorrectAns.ToString();
//incor ans
FilAns.Text = FailedAns.ToString();
// if incorect answers limit set limit -> int MaxIncorectCount = 3 default
if (FailedAns == MaxIncorrectCount)
{
Android.Support.V7.App.AlertDialog.Builder alert = new Android.Support.V7.App.AlertDialog.Builder(this);
// alert.SetTitle("არადა კაი იყო 😁");
alert.SetMessage($"შენ ვერ ჩააბარე გამოცდა იმითომ რომ {MaxIncorrectCount} შეკითხვას გაეცი არასწორი პასუხი");
Dialog dialog = alert.Create();
dialog.Show();
}
Position++;
NextQuestion.Text = (Position + 1).ToString();
if (AutoChange.Checked)
{
TicketPager.SetCurrentItem(Position, true);
}
if (Position == TicketsCount)
{
await new AnsweredService().SaveUserAnswersAsync(Tickets, Answers);
var endUi = new Intent(this, typeof(EndActivity));
endUi.PutExtra("TicketsCount", TicketsCount);
StartActivity(endUi);
ClearUi();
}
}
public bool IsNumericCorrect(string userAnswer, string correctAnswer)// to match numeric values
{
bool result = false;
decimal selectedAns;
decimal CorrectAns;
bool isSelectedAnsNumeric = decimal.TryParse(correctAnswer, out CorrectAns);
bool isCorrectAnsNUmeric = decimal.TryParse(userAnswer, out selectedAns);
//Check if GivenAnswer and DB Correct answer is numeric/decimal or Not
if (correctAnswer.Contains("+") && !userAnswer.Contains("+")) // check if correct answer contains + sign then check in answer given for + sign also
{
result = false;
}
if (isCorrectAnsNUmeric && isSelectedAnsNumeric) // match the numeric value
{
selectedAns = Decimal.Parse(selectedAns.ToString("0.0000"));
CorrectAns = Decimal.Parse(CorrectAns.ToString("0.0000"));
result = selectedAns.Equals(CorrectAns);
}
return(result);
}