Merge pull request #16 from TanelOrumaa/newapproach

Improved code

MobileAuthApp/app/src/main/java/com/tarkvaraprojekt/mobileauthapp/AuthFragment.kt

@@ -36,7 +36,8 @@ class AuthFragment : Fragment() {
 
     private val paramsModel: ParametersViewModel by activityViewModels()
 
-    private var binding: FragmentAuthBinding? = null
+    private var _binding: FragmentAuthBinding? = null
+    private val binding get() = _binding!!
 
     private val args: CanFragmentArgs by navArgs()
 
@@ -49,8 +50,8 @@ class AuthFragment : Fragment() {
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        binding = FragmentAuthBinding.inflate(inflater, container, false)
+        _binding = FragmentAuthBinding.inflate(inflater, container, false)
-        return binding!!.root
+        return binding.root
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -59,9 +60,9 @@ class AuthFragment : Fragment() {
             override fun onTick(p0: Long) {
                 timeRemaining--
                 if (timeRemaining == 0) {
-                    binding?.timeCounter?.text = getString(R.string.no_time)
+                    binding.timeCounter.text = getString(R.string.no_time)
                 } else {
-                    binding?.timeCounter?.text = getString(R.string.time_left, timeRemaining)
+                    binding.timeCounter.text = getString(R.string.time_left, timeRemaining)
                 }
             }
 
@@ -71,9 +72,9 @@ class AuthFragment : Fragment() {
             }
         }.start()
         // The button exists in code for testing reasons, but not visible to the user anymore unless visibility is changed in the code.
-        binding!!.nextButton.visibility = View.GONE
+        binding.nextButton.visibility = View.GONE
-        binding!!.nextButton.setOnClickListener { goToNextFragment() }
+        binding.nextButton.setOnClickListener { goToNextFragment() }
-        binding!!.cancelButton.setOnClickListener { cancelAuth() }
+        binding.cancelButton.setOnClickListener { cancelAuth() }
         val adapter = NfcAdapter.getDefaultAdapter(activity)
         if (adapter != null)
             getInfoFromIdCard(adapter)
@@ -104,7 +105,7 @@ class AuthFragment : Fragment() {
         adapter.enableReaderMode(activity, { tag ->
             timer.cancel()
             requireActivity().runOnUiThread {
-                binding!!.timeCounter.text = getString(R.string.card_detected)
+                binding.timeCounter.text = getString(R.string.card_detected)
             }
             val card = IsoDep.get(tag)
             card.timeout = 32768
@@ -127,11 +128,11 @@ class AuthFragment : Fragment() {
                             when ("invalid pin") {
                                 in e.message.toString().lowercase() -> requireActivity().runOnUiThread {
                                     val messagePieces = e.message.toString().split(" ")
-                                    binding!!.timeCounter.text = getString(R.string.wrong_pin, messagePieces[messagePieces.size - 1])
+                                    binding.timeCounter.text = getString(R.string.wrong_pin, messagePieces[messagePieces.size - 1])
                                     viewModel.deletePin(requireContext())
                                 }
                                 else -> requireActivity().runOnUiThread {
-                                    binding!!.timeCounter.text = getString(R.string.wrong_can_text)
+                                    binding.timeCounter.text = getString(R.string.wrong_can_text)
                                     viewModel.deleteCan(requireContext())
                                 }
                             }
@@ -149,6 +150,6 @@ class AuthFragment : Fragment() {
 
     override fun onDestroy() {
         super.onDestroy()
-        binding = null
+        _binding = null
     }
 }

MobileAuthApp/app/src/main/java/com/tarkvaraprojekt/mobileauthapp/CanFragment.kt

@@ -29,7 +29,8 @@ class CanFragment : Fragment() {
 
     private val viewModel: SmartCardViewModel by activityViewModels()
 
-    private var binding: FragmentCanBinding? = null
+    private var _binding: FragmentCanBinding? = null
+    private val binding get() = _binding!!
 
     // Navigation arguments:
     // saving = true means that we are navigating here from the settings menu and must return to the settings menu.
@@ -40,17 +41,17 @@ class CanFragment : Fragment() {
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        binding = FragmentCanBinding.inflate(inflater, container, false)
+        _binding = FragmentCanBinding.inflate(inflater, container, false)
-        return binding!!.root
+        return binding.root
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
         checkIfSkip()
-        binding!!.canTextField.editText?.addTextChangedListener {
+        binding.canTextField.editText?.addTextChangedListener {
             checkEnteredCan()
         }
-        binding!!.buttonCancel.setOnClickListener { goToTheStart() }
+        binding.buttonCancel.setOnClickListener { goToTheStart() }
     }
 
     /**
@@ -112,7 +113,7 @@ class CanFragment : Fragment() {
      * allowed to modify the entered can.
      */
     private fun checkEnteredCan() {
-        val enteredCan = binding!!.canTextField.editText?.text.toString()
+        val enteredCan = binding.canTextField.editText?.text.toString()
         if (enteredCan.length == 6) {
             viewModel.setUserCan(enteredCan)
             viewModel.storeCan(requireContext()) //Maybe storeCan should always automatically call setUserCan method as well because these methods usually are used together
@@ -127,6 +128,6 @@ class CanFragment : Fragment() {
 
     override fun onDestroy() {
         super.onDestroy()
-        binding = null
+        _binding = null
     }
 }

MobileAuthApp/app/src/main/java/com/tarkvaraprojekt/mobileauthapp/HomeFragment.kt

@@ -39,7 +39,8 @@ class HomeFragment : Fragment() {
 
     private val intentParams: ParametersViewModel by activityViewModels()
 
-    private var binding: FragmentHomeBinding? = null
+    private var _binding: FragmentHomeBinding? = null
+    private val binding get() = _binding!!
 
     // The ID card reader mode is enabled on the home fragment when can is saved.
     private var canSaved: Boolean = false
@@ -54,10 +55,10 @@ class HomeFragment : Fragment() {
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        binding = FragmentHomeBinding.inflate(inflater, container, false)
+        _binding = FragmentHomeBinding.inflate(inflater, container, false)
         // Making settings menu active again
         (activity as MainActivity).menuAvailable = true
-        return binding!!.root
+        return binding.root
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -111,15 +112,29 @@ class HomeFragment : Fragment() {
                 intentParams.setAuthUrl(requireActivity().intent.data!!.getQueryParameter("authUrl")!!)
                 intentParams.setOrigin(requireActivity().intent.data!!.getQueryParameter("originUrl")!!)
             }
+            goToTheNextFragment(mobile)
         } catch (e: Exception) {
             // There was a problem with parameters, which means that authentication is not possible.
             // In that case we will cancel the authentication immediately as it would be waste of the user's time to carry on
             // before getting an inevitable error.
-            val resultIntent = Intent()
+            val message = MaterialAlertDialogBuilder(requireContext())
-            requireActivity().setResult(AppCompatActivity.RESULT_CANCELED, resultIntent)
+            message.setTitle(getString(R.string.problem_parameters))
-            requireActivity().finish()
+            if (intentParams.challenge == "") {
+                message.setMessage(getString(R.string.problem_challenge))
+            } else if (intentParams.authUrl == "") {
+                message.setMessage(getString(R.string.problem_authurl))
+            } else if (intentParams.origin == "") {
+                message.setMessage(getString(R.string.problem_originurl))
+            } else {
+                message.setMessage(getString(R.string.problem_other))
+            }
+            message.setPositiveButton(getString(R.string.continue_button)) {_, _ ->
+                val resultIntent = Intent()
+                requireActivity().setResult(AppCompatActivity.RESULT_CANCELED, resultIntent)
+                requireActivity().finish()
+            }
+            message.show()
         }
-        goToTheNextFragment(mobile)
     }
 
     /**
@@ -127,12 +142,12 @@ class HomeFragment : Fragment() {
      */
     private fun canState() {
         if (viewModel.userCan.length == 6) {
-            binding!!.canStatusText.text = getString(R.string.can_status_saved)
+            binding.canStatusText.text = getString(R.string.can_status_saved)
-            binding!!.canStatusLogo.setImageResource(R.drawable.ic_check_logo)
+            binding.canStatusLogo.setImageResource(R.drawable.ic_check_logo)
             canSaved = true
         } else {
-            binding!!.canStatusText.text = getString(R.string.can_status_negative)
+            binding.canStatusText.text = getString(R.string.can_status_negative)
-            binding!!.canStatusLogo.setImageResource(R.drawable.ic_info_logo)
+            binding.canStatusLogo.setImageResource(R.drawable.ic_info_logo)
             canSaved = false
         }
     }
@@ -142,11 +157,11 @@ class HomeFragment : Fragment() {
      */
     private fun pinState() {
         if (viewModel.userPin.length in 4..12) {
-            binding!!.pinStatusText.text = getString(R.string.pin_status_saved)
+            binding.pinStatusText.text = getString(R.string.pin_status_saved)
-            binding!!.pinStatusLogo.setImageResource(R.drawable.ic_check_logo)
+            binding.pinStatusLogo.setImageResource(R.drawable.ic_check_logo)
         } else {
-            binding!!.pinStatusText.text = getString(R.string.pin_status_negative)
+            binding.pinStatusText.text = getString(R.string.pin_status_negative)
-            binding!!.pinStatusLogo.setImageResource(R.drawable.ic_info_logo)
+            binding.pinStatusLogo.setImageResource(R.drawable.ic_info_logo)
         }
     }
 
@@ -172,10 +187,10 @@ class HomeFragment : Fragment() {
     /**
      * Displays a help message to the user explaining what the CAN is
      */
-    private fun displayMessage() {
+    private fun displayMessage(title: String, message: String) {
         val dialog = MaterialAlertDialogBuilder(requireContext())
-            .setTitle(getString(R.string.can_question))
+            .setTitle(title)
-            .setMessage(getString(R.string.can_explanation))
+            .setMessage(message)
             .setPositiveButton(R.string.return_text){_, _ -> }
             .show()
         val title = dialog.findViewById<TextView>(R.id.alertTitle)
@@ -188,22 +203,22 @@ class HomeFragment : Fragment() {
      */
     private fun updateAction(canIsSaved: Boolean) {
         if (canIsSaved) {
-            binding!!.detectionActionText.text = getString(R.string.action_detect)
+            binding.detectionActionText.text = getString(R.string.action_detect)
             enableReaderMode()
-            binding!!.homeActionButton.visibility = View.GONE
+            binding.homeActionButton.visibility = View.GONE
-            binding!!.homeHelpButton.visibility = View.GONE
+            binding.homeHelpButton.visibility = View.GONE
         } else {
-            binding!!.detectionActionText.text = getString(R.string.action_detect_unavailable)
+            binding.detectionActionText.text = getString(R.string.action_detect_unavailable)
-            binding!!.homeActionButton.text = getString(R.string.add_can_text)
+            binding.homeActionButton.text = getString(R.string.add_can_text)
-            binding!!.homeActionButton.setOnClickListener {
+            binding.homeActionButton.setOnClickListener {
                 val action = HomeFragmentDirections.actionHomeFragmentToCanFragment(saving = true, fromhome = true)
                 findNavController().navigate(action)
             }
-            binding!!.homeHelpButton.setOnClickListener {
+            binding.homeHelpButton.setOnClickListener {
-                displayMessage()
+                displayMessage(getString(R.string.can_question), getString(R.string.can_explanation))
             }
-            binding!!.homeActionButton.visibility = View.VISIBLE
+            binding.homeActionButton.visibility = View.VISIBLE
-            binding!!.homeHelpButton.visibility = View.VISIBLE
+            binding.homeHelpButton.visibility = View.VISIBLE
         }
     }
 
@@ -211,11 +226,11 @@ class HomeFragment : Fragment() {
      * Resets the error message and allows the user to try again
      */
     private fun reset() {
-        binding!!.homeActionButton.text = getString(R.string.try_again_text)
+        binding.homeActionButton.text = getString(R.string.try_again_text)
-        binding!!.homeActionButton.setOnClickListener {
+        binding.homeActionButton.setOnClickListener {
             updateAction(canSaved)
         }
-        binding!!.homeActionButton.visibility = View.VISIBLE
+        binding.homeActionButton.visibility = View.VISIBLE
     }
 
     /**
@@ -224,11 +239,11 @@ class HomeFragment : Fragment() {
     private fun enableReaderMode() {
         val adapter = NfcAdapter.getDefaultAdapter(activity)
         if (adapter == null || !adapter.isEnabled) {
-            binding!!.detectionActionText.text = getString(R.string.nfc_not_available)
+            binding.detectionActionText.text = getString(R.string.nfc_not_available)
         } else {
             adapter.enableReaderMode(activity, { tag ->
                 requireActivity().runOnUiThread {
-                    binding!!.detectionActionText.text = getString(R.string.card_detected)
+                    binding.detectionActionText.text = getString(R.string.card_detected)
                 }
                 val card = IsoDep.get(tag)
                 card.timeout = 32768
@@ -249,11 +264,11 @@ class HomeFragment : Fragment() {
                     } catch (e: Exception) {
                         when(e) {
                             is TagLostException -> requireActivity().runOnUiThread {
-                                binding!!.detectionActionText.text = getString(R.string.id_card_removed_early)
+                                binding.detectionActionText.text = getString(R.string.id_card_removed_early)
                                 reset()
                             }
                             else -> requireActivity().runOnUiThread {
-                                binding!!.detectionActionText.text = getString(R.string.nfc_reading_error)
+                                binding.detectionActionText.text = getString(R.string.nfc_reading_error)
                                 viewModel.deleteCan(requireContext())
                                 canState()
                                 reset()
@@ -269,7 +284,9 @@ class HomeFragment : Fragment() {
 
     override fun onDestroyView() {
         super.onDestroyView()
-        requireActivity().unregisterReceiver(receiver)
+        if (receiver != null) {
-        binding = null
+            requireActivity().unregisterReceiver(receiver)
+        }
+        _binding = null
     }
 }

MobileAuthApp/app/src/main/java/com/tarkvaraprojekt/mobileauthapp/Pin2Fragment.kt

@@ -19,23 +19,24 @@ class Pin2Fragment : Fragment() {
 
     private val viewModel: SmartCardViewModel by activityViewModels()
 
-    private var binding: FragmentPin2Binding? = null
+    private var _binding: FragmentPin2Binding? = null
+    private val binding get() = _binding!!
 
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        binding = FragmentPin2Binding.inflate(inflater, container, false)
+        _binding = FragmentPin2Binding.inflate(inflater, container, false)
-        return binding!!.root
+        return binding.root
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-        binding!!.nextButton.setOnClickListener {
+        binding.nextButton.setOnClickListener {
             checkPin2Length()
         }
-        binding!!.cancelButton.setOnClickListener {
+        binding.cancelButton.setOnClickListener {
             cancel()
         }
     }
@@ -45,7 +46,7 @@ class Pin2Fragment : Fragment() {
      * then it is saved to the viewModel.
      */
     private fun checkPin2Length() {
-        val enteredPin2 = binding!!.pin2EditText.editText?.text.toString()
+        val enteredPin2 = binding.pin2EditText.editText?.text.toString()
         if (enteredPin2.length in 5..12) {
             viewModel.setUserPin2(enteredPin2)
         } else {
@@ -66,7 +67,7 @@ class Pin2Fragment : Fragment() {
 
     override fun onDestroy() {
         super.onDestroy()
-        binding = null
+        _binding = null
     }
 
 }

MobileAuthApp/app/src/main/java/com/tarkvaraprojekt/mobileauthapp/PinFragment.kt

@@ -29,7 +29,8 @@ class PinFragment : Fragment() {
 
     private val viewModel: SmartCardViewModel by activityViewModels()
 
-    private var binding: FragmentPinBinding? = null
+    private var _binding: FragmentPinBinding? = null
+    private val binding get() = _binding!!
 
     // Navigation arguments:
     // saving = true means that the user must be returned to the settings menu
@@ -42,8 +43,8 @@ class PinFragment : Fragment() {
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        binding = FragmentPinBinding.inflate(inflater, container, false)
+        _binding = FragmentPinBinding.inflate(inflater, container, false)
-        return binding!!.root
+        return binding.root
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -51,28 +52,27 @@ class PinFragment : Fragment() {
         checkIfSkip()
         // Switch should be not visible when user is in savings mode
         if (args.saving) {
-            binding!!.savePinQuestion.visibility = View.GONE
+            binding.savePinQuestion.visibility = View.GONE
-            binding!!.saveLayout.visibility = View.GONE
+            binding.saveLayout.visibility = View.GONE
         } else {
             saveToggle =
                 activity?.getPreferences(Context.MODE_PRIVATE)?.getBoolean("saveToggle", true) == true //Android Studio recommendation to get rid of Boolean?.
-            Log.i("myLogging", activity?.getPreferences(Context.MODE_PRIVATE)?.getBoolean("saveToggle", true).toString())
             if (!saveToggle) {
-                binding!!.saveSwitch.isChecked = false
+                binding.saveSwitch.isChecked = false
             }
-            binding!!.saveSwitch.setOnCheckedChangeListener { _, isChecked ->
+            binding.saveSwitch.setOnCheckedChangeListener { _, isChecked ->
                 if (isChecked) {
-                    binding!!.saveStatus.text = getString(R.string.pin_save_on)
+                    binding.saveStatus.text = getString(R.string.pin_save_on)
                     activity?.getPreferences(Context.MODE_PRIVATE)?.edit()?.putBoolean("saveToggle", true)?.apply()
                 } else {
-                    binding!!.saveStatus.text = getString(R.string.pin_save_off)
+                    binding.saveStatus.text = getString(R.string.pin_save_off)
                     activity?.getPreferences(Context.MODE_PRIVATE)?.edit()?.putBoolean("saveToggle", false)?.apply()
                 }
                 saveToggle = !saveToggle
             }
         }
-        binding!!.buttonContinue.setOnClickListener { checkEnteredPin() }
+        binding.buttonContinue.setOnClickListener { checkEnteredPin() }
-        binding!!.buttonCancel.setOnClickListener { goToTheStart() }
+        binding.buttonCancel.setOnClickListener { goToTheStart() }
     }
 
     /**
@@ -130,7 +130,7 @@ class PinFragment : Fragment() {
      * allowed to modify the entered PIN 1.
      */
     private fun checkEnteredPin() {
-        val enteredPin = binding!!.pinTextField.editText?.text.toString()
+        val enteredPin = binding.pinTextField.editText?.text.toString()
         if (enteredPin.length in 4..12) {
             viewModel.setUserPin(enteredPin)
             if (args.saving) {
@@ -152,6 +152,6 @@ class PinFragment : Fragment() {
 
     override fun onDestroy() {
         super.onDestroy()
-        binding = null
+        _binding = null
     }
 }

MobileAuthApp/app/src/main/java/com/tarkvaraprojekt/mobileauthapp/ResultFragment.kt

@@ -24,7 +24,8 @@ class ResultFragment : Fragment() {
 
     private val paramsModel: ParametersViewModel by activityViewModels()
 
-    private var binding: FragmentResultBinding? = null
+    private var _binding: FragmentResultBinding? = null
+    private val binding get() = _binding!!
 
     private val args: ResultFragmentArgs by navArgs()
 
@@ -33,8 +34,8 @@ class ResultFragment : Fragment() {
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        binding = FragmentResultBinding.inflate(inflater, container, false)
+        _binding = FragmentResultBinding.inflate(inflater, container, false)
-        return binding!!.root
+        return binding.root
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -86,7 +87,7 @@ class ResultFragment : Fragment() {
 
     override fun onDestroy() {
         super.onDestroy()
-        binding = null
+        _binding = null
     }
 
 }

MobileAuthApp/app/src/main/java/com/tarkvaraprojekt/mobileauthapp/UserFragment.kt

@@ -20,33 +20,34 @@ class UserFragment : Fragment() {
 
     private val viewModel: SmartCardViewModel by activityViewModels()
 
-    private var binding: FragmentUserBinding? = null
+    private var _binding: FragmentUserBinding? = null
+    private val binding get() = _binding!!
 
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        binding = FragmentUserBinding.inflate(inflater, container, false)
+        _binding = FragmentUserBinding.inflate(inflater, container, false)
-        return binding!!.root
+        return binding.root
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
         displayInformation()
-        binding!!.clearButton.setOnClickListener { goToTheStart() }
+        binding.clearButton.setOnClickListener { goToTheStart() }
     }
 
     /**
      * Assigns text values to the fields in order to display user information.
      */
     private fun displayInformation() {
-        binding!!.userName.text =
+        binding.userName.text =
             getString(R.string.user_name, viewModel.userFirstName, viewModel.userLastName)
-        binding!!.identificationNumber.text = viewModel.userIdentificationNumber
+        binding.identificationNumber.text = viewModel.userIdentificationNumber
-        binding!!.gender.text = viewModel.gender
+        binding.gender.text = viewModel.gender
-        binding!!.expiration.text = viewModel.expiration.replace(" ", "/")
+        binding.expiration.text = viewModel.expiration.replace(" ", "/")
-        binding!!.citizenship.text = viewModel.citizenship
+        binding.citizenship.text = viewModel.citizenship
     }
 
     /**
@@ -59,6 +60,6 @@ class UserFragment : Fragment() {
 
     override fun onDestroy() {
         super.onDestroy()
-        binding = null
+        _binding = null
     }
 }

MobileAuthApp/app/src/main/java/com/tarkvaraprojekt/mobileauthapp/menu/SettingsFragment.kt

@@ -25,7 +25,8 @@ class SettingsFragment : Fragment() {
 
     private val viewModel: SmartCardViewModel by activityViewModels()
 
-    private var binding: FragmentSettingsBinding? = null
+    private var _binding: FragmentSettingsBinding? = null
+    private val binding get() = _binding!!
 
     private var showPin: Boolean = false
 
@@ -34,8 +35,8 @@ class SettingsFragment : Fragment() {
         container: ViewGroup?,
         savedInstanceState: Bundle?
     ): View? {
-        binding = FragmentSettingsBinding.inflate(inflater, container, false)
+        _binding = FragmentSettingsBinding.inflate(inflater, container, false)
-        return binding!!.root
+        return binding.root
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
@@ -43,10 +44,10 @@ class SettingsFragment : Fragment() {
         showCanField()
         showPinField()
         togglePinButton()
-        binding!!.canMenuAction.setOnClickListener { canAction() }
+        binding.canMenuAction.setOnClickListener { canAction() }
-        binding!!.pinMenuAction.setOnClickListener { pinAction() }
+        binding.pinMenuAction.setOnClickListener { pinAction() }
-        binding!!.pinMenuShow.setOnClickListener { togglePin() }
+        binding.pinMenuShow.setOnClickListener { togglePin() }
-        binding!!.returnButton.setOnClickListener { backToHome() }
+        binding.returnButton.setOnClickListener { backToHome() }
     }
 
     /**
@@ -64,11 +65,11 @@ class SettingsFragment : Fragment() {
      */
     private fun showCanField() {
         if (viewModel.userCan.length == 6) {
-            binding!!.canSaved.text = getString(R.string.saved_can, viewModel.userCan)
+            binding.canSaved.text = getString(R.string.saved_can, viewModel.userCan)
-            binding!!.canMenuAction.text = getString(R.string.can_delete)
+            binding.canMenuAction.text = getString(R.string.can_delete)
         } else {
-            binding!!.canSaved.text = getString(R.string.saved_can, getString(R.string.missing))
+            binding.canSaved.text = getString(R.string.saved_can, getString(R.string.missing))
-            binding!!.canMenuAction.text = getString(R.string.add_can_text)
+            binding.canMenuAction.text = getString(R.string.add_can_text)
         }
     }
 
@@ -95,16 +96,16 @@ class SettingsFragment : Fragment() {
      */
     private fun showPinField() {
         if (viewModel.userPin.length in 4..12) {
-            binding!!.pinMenuShow.visibility = Button.VISIBLE
+            binding.pinMenuShow.visibility = Button.VISIBLE
             if (showPin)
-                binding!!.pinSaved.text = getString(R.string.saved_pin, viewModel.userPin)
+                binding.pinSaved.text = getString(R.string.saved_pin, viewModel.userPin)
             else
-                binding!!.pinSaved.text = getString(R.string.saved_pin, getString(R.string.hidden_pin))
+                binding.pinSaved.text = getString(R.string.saved_pin, getString(R.string.hidden_pin))
-            binding!!.pinMenuAction.text = getString(R.string.pin1_delete)
+            binding.pinMenuAction.text = getString(R.string.pin1_delete)
         } else {
-            binding!!.pinMenuShow.visibility = Button.GONE
+            binding.pinMenuShow.visibility = Button.GONE
-            binding!!.pinSaved.text = getString(R.string.saved_pin, getString(R.string.missing))
+            binding.pinSaved.text = getString(R.string.saved_pin, getString(R.string.missing))
-            binding!!.pinMenuAction.text = getString(R.string.pin1_add)
+            binding.pinMenuAction.text = getString(R.string.pin1_add)
         }
     }
 
@@ -138,9 +139,9 @@ class SettingsFragment : Fragment() {
      */
     private fun togglePinButton() {
         if (showPin) {
-            binding!!.pinMenuShow.text = getString(R.string.hide)
+            binding.pinMenuShow.text = getString(R.string.hide)
         } else {
-            binding!!.pinMenuShow.text = getString(R.string.show)
+            binding.pinMenuShow.text = getString(R.string.show)
         }
     }
 
@@ -154,7 +155,7 @@ class SettingsFragment : Fragment() {
 
     override fun onDestroy() {
         super.onDestroy()
-        binding = null
+        _binding = null
     }
 
 }

MobileAuthApp/app/src/main/res/values-en/strings.xml

@@ -29,7 +29,11 @@
     <string name="help_text">HELP</string>
     <string name="can_question">What is CAN?</string>
     <string name="can_explanation">CAN is a 6 digit code that is needed to communicate with an ID card. It can be found on the ID card under the card holder\'s picture with a title KASUTAJA ALLKIRI/HOLDER\'S SIGNATURE.</string>
-
+    <string name="problem_parameters">Problem with parameters</string>
+    <string name="problem_challenge">Challenge is missing</string>
+    <string name="problem_authurl">AuthUrl is missing</string>
+    <string name="problem_originurl">OriginUrl is missing</string>
+    <string name="problem_other">Unspecified problem with parameters</string>
     <!-- string resources for PinFragment -->
     <string name="pin_view">Please enter PIN 1</string>
     <string name="hint_pin">PIN 1</string>

MobileAuthApp/app/src/main/res/values-et/strings.xml

@@ -28,7 +28,11 @@
     <string name="help_text">INFO</string>
     <string name="can_question">Mis on CAN?</string>
     <string name="can_explanation">CAN on 6 kohaline numbritest koosnev kood, mida on vaja ID kaardiga suhtlemiseks. CAN-i leiab ID kaardilt omaniku pildi alt pealkirjaga KASUTAJA ALLKIRI/HOLDER\'S SIGNATURE.</string>
-
+    <string name="problem_parameters">Probleem parameetritega</string>
+    <string name="problem_challenge">Puudub challenge parameeter</string>
+    <string name="problem_authurl">Puudub AuthUrl parameeter</string>
+    <string name="problem_originurl">Puudub OriginUrl parameeter</string>
+    <string name="problem_other">Täpsustamata probleem parameetritega</string>
     <!-- string resources for PinFragment -->
     <string name="pin_view">Palun sisesta PIN 1</string>
     <string name="hint_pin">PIN 1</string>

MobileAuthApp/app/src/main/res/values/strings.xml

@@ -27,7 +27,11 @@
     <string name="help_text">HELP</string>
     <string name="can_question">What is CAN?</string>
     <string name="can_explanation">CAN is a 6 digit code that is needed to communicate with an ID card. It can be found on the ID card under the card holder\'s picture with a title KASUTAJA ALLKIRI/HOLDER\'S SIGNATURE.</string>
-
+    <string name="problem_parameters">Problem with parameters</string>
+    <string name="problem_challenge">Challenge is missing</string>
+    <string name="problem_authurl">AuthUrl is missing</string>
+    <string name="problem_originurl">OriginUrl is missing</string>
+    <string name="problem_other">Unspecified problem with parameters</string>
     <!-- string resources for PinFragment -->
     <string name="pin_view">Please enter PIN 1</string>
     <string name="hint_pin">PIN 1</string>