protected override void OnActivityResult(int requestCode, Result resultCode, Intent data)
{
base.OnActivityResult(requestCode, resultCode, data);
if (requestCode != 1)
{
return;
}
if (data == null)
{
Finish();
return;
}
string result = data.GetStringExtra("la.droid.qr.result");
if (string.IsNullOrWhiteSpace(result))
{
ResponseManager.ShowMessage("Error", "Invalid QR code scanned!");
return;
}
_qrCode = result;
if (ScannedCodesCollection.CodeExists(result))
{
_codeAlreadyUsed = true;
ShowCodeAlreadyScannedDialog();
return;
}
_scannedCode = true;
}
private void InitializeTeacher()
{
SetContentView(Resource.Layout.MainTeacher);
this.ActionBar.NavigationMode = ActionBarNavigationMode.Standard;
this.Title = "APlus Teacher Panel";
Button btnGrade = FindViewById <Button> (Resource.Id.btnGrade);
Button btnSubmitGrades = FindViewById <Button> (Resource.Id.btnSubmitGrades);
UpdateCounter();
Button btnDeleteSavedGrades = FindViewById <Button> (Resource.Id.btnDeleteSavedGrades);
btnGrade.Click += delegate {
StartActivityForResult(typeof(ScanCodeActivity), 1);
};
btnSubmitGrades.Click += delegate {
ThreadPool.QueueUserWorkItem(o => {
RunOnUiThread(() => btnSubmitGrades.Enabled = false);
while (!_checkedStatus)
{
Thread.Sleep(100);
}
try
{
ScannedCodesCollection.Sync();
}
finally
{
RunOnUiThread(() => {
btnSubmitGrades.Enabled = true;
UpdateCounter();
});
}
});
};
btnDeleteSavedGrades.Click += delegate {
ScannedCodesCollection.DeleteAllCodes();
UpdateCounter();
};
}
private void Finish(object sender, EventArgs e)
{
if (!CheckDataOk())
{
return;
}
if (string.IsNullOrWhiteSpace(_editTextSubject.Text))
{
ResponseManager.ShowMessage("Error", "Subject cannot be empty!");
return;
}
ScannedCode code = new ScannedCode(_editTextSubject.Text, int.Parse(_txtViewGrade.Text), _qrCode);
ScannedCodesCollection.AddCode(code);
Finish();
}
private void ShowCodeAlreadyScannedDialog()
{
ScannedCode code = ScannedCodesCollection.GetFullCodeFromCode(_qrCode);
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.AppendLine(string.Format("Code has already been graded at {0} with {1}!", code.Subject, code.Grade));
stringBuilder.Append("Do you want to delete the old grade and save a new one?");
var dialogFragment = new DialogFragment();
dialogFragment.InitializeYesNo(stringBuilder.ToString(), "Question", delegate {
ScannedCodesCollection.DeleteCode(code);
_codeAlreadyUsed = false;
}, delegate {
Finish();
});
dialogFragment.Show();
}
private void Next(object sender, EventArgs e)
{
if (!CheckDataOk())
{
return;
}
ScannedCode code = new ScannedCode(_editTextSubject.Text, int.Parse(_txtViewGrade.Text), _qrCode);
ScannedCodesCollection.AddCode(code);
Intent intent = new Intent(this, typeof(ScanCodeActivity));
Bundle bundle = new Bundle();
bundle.PutString("subject", _editTextSubject.Text);
intent.PutExtras(bundle);
StartActivity(intent);
Finish();
}
private void UpdateCounter()
{
if (this.Title != "APlus Teacher Panel")
{
return;
}
string alreadyUpdatedRegex = @".*\([0-9]+\)";
string counterRegex = @"(?!.*\()[0-9]+(?=\))";
Button btnSubmitGrades = FindViewById <Button> (Resource.Id.btnSubmitGrades);
int codesCount = ScannedCodesCollection.CodesCount();
if (Regex.IsMatch(btnSubmitGrades.Text, alreadyUpdatedRegex))
{
btnSubmitGrades.Text = Regex.Replace(btnSubmitGrades.Text, counterRegex, codesCount.ToString());
}
else
{
btnSubmitGrades.Text += string.Format(" ({0})", codesCount);
}
}
