Merge pull request #9 from TanelOrumaa/iter3UI

Iter3 UI

MobileAuthApp/app/build.gradle

@@ -59,4 +59,7 @@ dependencies {
     //For cryptography
     implementation group: 'org.bouncycastle', name: 'bcprov-jdk15on', version: '1.69'
 
+    //SecureDataStoring
+    implementation("androidx.security:security-crypto:1.0.0")
+
 }

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

@@ -78,10 +78,13 @@ class AuthFragment : Fragment() {
             card.use {
                 try {
                     val comms = Comms(it, viewModel.userCan)
-                    val response = comms.readPersonalData(byteArrayOf(1, 2, 6))
+                    val response = comms.readPersonalData(byteArrayOf(1, 2, 6, 3, 4, 8))
                     viewModel.setUserFirstName(response[1])
                     viewModel.setUserLastName(response[0])
                     viewModel.setUserIdentificationNumber(response[2])
+                    viewModel.setGender(response[3])
+                    viewModel.setCitizenship(response[4])
+                    viewModel.setExpiration(response[5])
                     requireActivity().runOnUiThread{
                         binding!!.timeCounter.text = getString(R.string.data_read)
                     }
@@ -89,6 +92,8 @@ class AuthFragment : Fragment() {
                     requireActivity().runOnUiThread {
                         binding!!.timeCounter.text = getString(R.string.no_success)
                     }
+                    // If the CAN is wrong we will also delete the saved CAN so that the user won't use it again.
+                    viewModel.deleteCan(requireContext())
                     // Gives user some time to read the error message
                     Thread.sleep(1000)
                     goToTheStart()

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

@@ -1,5 +1,6 @@
 package com.tarkvaraprojekt.mobileauthapp
 
+import android.app.AlertDialog
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -8,11 +9,14 @@ import android.widget.Toast
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.activityViewModels
 import androidx.navigation.fragment.findNavController
+import androidx.navigation.fragment.navArgs
 import com.tarkvaraprojekt.mobileauthapp.databinding.FragmentCanBinding
 import com.tarkvaraprojekt.mobileauthapp.model.SmartCardViewModel
 
 /**
- * Fragment that deals with asking the user for six digit CAN
+ * Fragment that deals with asking the user for a six digit CAN. If the CAN is already saved
+ * then the fragment is skipped immediately and if the CAN is not saved then the user
+ * is asked whether it should be saved for the future or not before continuing.
  */
 class CanFragment : Fragment() {
 
@@ -20,6 +24,12 @@ class CanFragment : Fragment() {
 
     private var binding: FragmentCanBinding? = null
 
+    // Navigation arguments:
+    // saving = true means that we are navigating here from the settings menu and must return to the settings menu.
+    // reading = true means that we are only reading the information from the ID card that does not need PIN 1,
+    //                this information is passed on to the next PinFragment.
+    private val args: CanFragmentArgs by navArgs()
+
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
@@ -31,28 +41,93 @@ class CanFragment : Fragment() {
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-
+        checkIfSkip()
-        binding!!.nextButton.setOnClickListener { goToNextFragment() }
+        // If the user arrives from the settings menu then the button should say
+        // save instead of continue.
+        if (args.saving) {
+            binding!!.nextButton.text = getString(R.string.save_text)
+        }
+        binding!!.nextButton.setOnClickListener { checkEnteredCan() }
         binding!!.cancelButton.setOnClickListener { goToTheStart() }
     }
 
-    private fun goToNextFragment() {
+    /**
-        val enteredCan = binding!!.canEditText.editText?.text.toString()
+     * Checks if the current fragment can be skipped or not.
-        if (enteredCan.length != 6) {
+     * If the user has CAN saved on the device there is no need to ask it again.
-            Toast.makeText(requireContext(), getString(R.string.length_can), Toast.LENGTH_SHORT)
+     */
-                .show()
+    private fun checkIfSkip() {
-        } else {
+        if (viewModel.userCan.length == 6) {
-            viewModel.setUserCan(
+            goToTheNextFragment()
-                binding!!.canEditText.editText?.text.toString()
-            )
-            findNavController().navigate(R.id.action_canFragment_to_authFragment)
         }
     }
 
+    /**
+     * Takes user to the next fragment, which is PinFragment.
+     */
+    private fun goToTheNextFragment() {
+        val action = CanFragmentDirections.actionCanFragmentToPinFragment(reading = args.reading)
+        findNavController().navigate(action)
+    }
+
+    /**
+     * Checks whether the user has entered a 6 digit can to the input field.
+     * If yes then the user is allowed to continue otherwise the user is
+     * allowed to modify the entered can.
+     */
+    private fun checkEnteredCan() {
+        val enteredCan = binding!!.canEditText.editText?.text.toString()
+        if (enteredCan.length == 6) {
+            viewModel.setUserCan(enteredCan)
+            if (args.saving) {
+                viewModel.storeCan(requireContext())
+                goToTheStart()
+            } else {
+                val storeCanQuestion = getDialog()
+                storeCanQuestion?.show()
+            }
+        } else {
+            Toast.makeText(requireContext(), getString(R.string.length_can), Toast.LENGTH_SHORT)
+                .show()
+        }
+    }
+
+    /**
+     * Builds a dialog that asks the user whether the entered CAN should be saved
+     * on the device or not.
+     */
+    private fun getDialog(): AlertDialog? {
+        return activity?.let { frag ->
+            val builder = AlertDialog.Builder(frag)
+            builder.apply {
+                // If response is positive then save the CAN on the device.
+                setPositiveButton(R.string.save_text) { _, _ ->
+                    viewModel.storeCan(
+                        requireContext()
+                    )
+                    goToTheNextFragment()
+                }
+                setNegativeButton(R.string.deny_text) { _, _ ->
+                    goToTheNextFragment()
+                }
+            }
+            builder.setMessage(R.string.can_save_request)
+            builder.setTitle(R.string.save_can_title)
+            builder.create()
+        }
+    }
+
+    /**
+     * Navigates the user back to the start depending on where the user arrived.
+     * If the user arrived from the settings menu then the start is the settings menu
+     * not the HomeFragment.
+     */
     private fun goToTheStart() {
-        viewModel.clearUserInfo()
+        if (args.saving) {
+            findNavController().navigate(R.id.action_canFragment_to_settingsFragment)
+        } else {
             findNavController().navigate(R.id.action_canFragment_to_homeFragment)
         }
+    }
 
     override fun onDestroy() {
         super.onDestroy()

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

@@ -10,6 +10,13 @@ import androidx.navigation.fragment.findNavController
 import com.tarkvaraprojekt.mobileauthapp.databinding.FragmentHomeBinding
 import com.tarkvaraprojekt.mobileauthapp.model.SmartCardViewModel
 
+/**
+ * HomeFragment is only shown to the user when then the user launches the application. When the application
+ * is launched by another application or a website then this Fragment will be skipped.
+ * This fragment uses the fields from the MainActivity by casting the activity to MainActivity.
+ * This might not be the best practice, but the application uses a single activity design so it should
+ * always work.
+ */
 class HomeFragment : Fragment() {
 
     private val viewModel: SmartCardViewModel by activityViewModels()
@@ -22,17 +29,72 @@ class HomeFragment : Fragment() {
         savedInstanceState: Bundle?
     ): View? {
         binding = FragmentHomeBinding.inflate(inflater, container, false)
+        // Making settings menu active again
+        (activity as MainActivity).menuAvailable = true
         return binding!!.root
     }
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-
+        initialChecks()
-        binding!!.beginButton.setOnClickListener { goToNextFragment() }
+        binding!!.beginButton.setOnClickListener { goToTheNextFragment() }
     }
 
-    private fun goToNextFragment() {
+    /**
-        findNavController().navigate(R.id.action_homeFragment_to_pinFragment)
+     * Method where all the initial checks that should be done before any user input is accepted should be added.
+     */
+    private fun initialChecks() {
+        viewModel.checkCan(requireContext())
+        viewModel.checkPin(requireContext())
+        displayStates()
+    }
+
+    /**
+     * Starts the process of interacting with the ID card by sending user to the CAN fragment.
+     */
+    private fun goToTheNextFragment() {
+        // Making settings menu inactive
+        (activity as MainActivity).menuAvailable = false
+        // Currently saving is true because the application is not yet integrated with
+        // other applications or websites.
+        val action = HomeFragmentDirections.actionHomeFragmentToCanFragment(reading = true)
+        findNavController().navigate(action)
+    }
+
+    /**
+     * Displays texts that inform the user whether the CAN and PIN 1 are saved on the device or not.
+     * This might help the user to save some time as checking menu is not necessary unless the user
+     * wishes to make changes to the saved CAN or PIN 1.
+     */
+    private fun displayStates() {
+        canState()
+        pinState()
+    }
+
+    /**
+     * Checks the state of the CAN, saved or not saved. Updates the text and logo.
+     */
+    private fun canState() {
+        if (viewModel.userCan.length == 6) {
+            binding!!.canStatusText.text = getString(R.string.can_status_saved)
+            binding!!.canStatusLogo.setImageResource(R.drawable.ic_check_logo)
+        } else {
+            binding!!.canStatusText.text = getString(R.string.can_status_negative)
+            binding!!.canStatusLogo.setImageResource(R.drawable.ic_info_logo)
+        }
+    }
+
+    /**
+     * Checks the state of the PIN 1, saved or not saved. Updates the text and logo.
+     */
+    private fun pinState() {
+        if (viewModel.userPin.length in 4..12) {
+            binding!!.pinStatusText.text = getString(R.string.pin_status_saved)
+            binding!!.pinStatusLogo.setImageResource(R.drawable.ic_check_logo)
+        } else {
+            binding!!.pinStatusText.text = getString(R.string.pin_status_negative)
+            binding!!.pinStatusLogo.setImageResource(R.drawable.ic_info_logo)
+        }
     }
 
     override fun onDestroyView() {

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

@@ -1,24 +1,51 @@
 package com.tarkvaraprojekt.mobileauthapp
 
-import android.nfc.NfcAdapter
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
-import android.util.Log
+import android.view.Menu
+import android.view.MenuItem
+import android.widget.Toast
 import androidx.navigation.NavController
 import androidx.navigation.fragment.NavHostFragment
 import com.tarkvaraprojekt.mobileauthapp.databinding.ActivityMainBinding
 
+
+/**
+ * The only activity of the application (single activity design).
+ */
 class MainActivity : AppCompatActivity() {
 
     private lateinit var navigationController: NavController
 
+    // If true the settings menu can be accessed from the toolbar in the upper part of the screen.
+    var menuAvailable: Boolean = true
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         val binding = ActivityMainBinding.inflate(layoutInflater)
         setContentView(binding.root)
 
+        setSupportActionBar(binding.toolbar)
+
         val navHostFragment = supportFragmentManager.findFragmentById(R.id.nav_host_fragment) as NavHostFragment
         navigationController = navHostFragment.navController
     }
 
+    override fun onCreateOptionsMenu(menu: Menu?): Boolean {
+        menuInflater.inflate(R.menu.menu, menu)
+        return true
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem) = when (item.itemId) {
+        R.id.menu_settings_option -> {
+            if (menuAvailable) {
+                navigationController.navigate(R.id.action_homeFragment_to_settingsFragment)
+                true
+            } else {
+                Toast.makeText(this, getString(R.string.unavailable), Toast.LENGTH_SHORT).show()
+                false
+            }
+        }
+        else -> super.onOptionsItemSelected(item)
+    }
 }

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

@@ -1,5 +1,6 @@
 package com.tarkvaraprojekt.mobileauthapp
 
+import android.app.AlertDialog
 import android.os.Bundle
 import android.view.LayoutInflater
 import android.view.View
@@ -8,11 +9,14 @@ import android.widget.Toast
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.activityViewModels
 import androidx.navigation.fragment.findNavController
+import androidx.navigation.fragment.navArgs
 import com.tarkvaraprojekt.mobileauthapp.databinding.FragmentPinBinding
 import com.tarkvaraprojekt.mobileauthapp.model.SmartCardViewModel
 
 /**
- * Fragment that deals with asking the user for PIN1
+ * Fragment that deals with asking the user for PIN 1. If the user has already saved the PIN 1 then it is not asked again
+ * and the fragment is skipped and if the PIN 1 is not saved then the user is asked whether it should be saved or
+ * not before continuing.
  */
 class PinFragment : Fragment() {
 
@@ -20,6 +24,12 @@ class PinFragment : Fragment() {
 
     private var binding: FragmentPinBinding? = null
 
+    // Navigation arguments:
+    // saving = true means that the user must be returned to the settings menu
+    // reading = true means that we are reading information from the ID card that does
+    //                not require PIN 1 so it is not necessary to ask it.
+    private val args: CanFragmentArgs by navArgs()
+
     override fun onCreateView(
         inflater: LayoutInflater,
         container: ViewGroup?,
@@ -31,34 +41,95 @@ class PinFragment : Fragment() {
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-
+        checkIfSkip()
-        binding!!.nextButton.setOnClickListener { goToNextFragment() }
+        // If the user arrives from the settings menu then the button says
+        // save instead of continue.
+        if (args.saving) {
+            binding!!.nextButton.text = getString(R.string.save_text)
+        }
+        binding!!.nextButton.setOnClickListener { checkEnteredPin() }
         binding!!.cancelButton.setOnClickListener { goToTheStart() }
-        // Currently PIN 1 is not required and thus this step is immediately skipped.
-        // In the future the UI flow will be changed in the nav_graph.
-        goToNextFragment()
     }
 
-    private fun goToNextFragment() {
+    /**
-        val enteredPin1 = binding!!.pinEditText.editText?.text.toString()
+     * Checks if the current fragment can be skipped or not.
-        if (enteredPin1.length in 4..12) {
+     * If the user has PIN 1 saved on the device or PIN 1 is not required
-            viewModel.setUserPin(
+     * then the PIN 1 won't be asked.
-                binding!!.pinEditText.editText?.text.toString()
+     */
-            )
+    private fun checkIfSkip() {
-            findNavController().navigate(R.id.action_pinFragment_to_canFragment)
+        if (args.reading) {
+            goToTheNextFragment()
+        } else if (viewModel.userPin.length in 4..12) {
+            goToTheNextFragment()
+        }
+    }
+
+    /**
+     * Takes user to the next fragment, which is AuthFragment.
+     */
+    private fun goToTheNextFragment() {
+        findNavController().navigate(R.id.action_pinFragment_to_authFragment)
+    }
+
+    /**
+     * Checks whether the user has entered a PIN 1 with length between [4, 12] in the
+     * input field. If yes then the user is allowed to continue otherwise the user is
+     * allowed to modify the entered PIN 1.
+     */
+    private fun checkEnteredPin() {
+        val enteredPin = binding!!.pinEditText.editText?.text.toString()
+        if (enteredPin.length in 4..12) {
+            viewModel.setUserPin(enteredPin)
+            if (args.saving) {
+                viewModel.storePin(requireContext())
+                goToTheStart()
             } else {
-            // Currently it is not important to enter PIN1 so we will allow the user to leave this field empty
+                val storePinQuestion = getDialog()
-            //Toast.makeText(requireContext(), getString(R.string.length_pin), Toast.LENGTH_SHORT)
+                storePinQuestion?.show()
-            //    .show()
+            }
-            viewModel.setUserPin("1234")
+        } else {
-            findNavController().navigate(R.id.action_pinFragment_to_canFragment)
+            Toast.makeText(requireContext(), getString(R.string.length_pin), Toast.LENGTH_SHORT)
+                .show()
         }
     }
 
+    /**
+     * Builds a dialog that asks the user whether the entered PIN 1 should be saved
+     * on the device or not.
+     */
+    private fun getDialog(): AlertDialog? {
+        return activity?.let { frag ->
+            val builder = AlertDialog.Builder(frag)
+            builder.apply {
+                // If response is positive save the PIN 1 on the device.
+                setPositiveButton(R.string.save_text) { _, _ ->
+                    viewModel.storePin(
+                        requireContext()
+                    )
+                    goToTheNextFragment()
+                }
+                setNegativeButton(R.string.deny_text) { _, _ ->
+                    goToTheNextFragment()
+                }
+            }
+            builder.setMessage(R.string.pin_save_request)
+            builder.setTitle(R.string.save_pin_title)
+            builder.create()
+        }
+    }
+
+    /**
+     * Returns user to the start. If the user arrived from the settings menu then the start is
+     * settings menu not the HomeFragment.
+     */
     private fun goToTheStart() {
+        if (args.saving) {
+            findNavController().navigate(R.id.action_pinFragment_to_settingsFragment)
+        } else {
             viewModel.clearUserInfo()
             findNavController().navigate(R.id.action_pinFragment_to_homeFragment)
         }
+    }
 
     override fun onDestroy() {
         super.onDestroy()

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

@@ -33,13 +33,25 @@ class UserFragment : Fragment() {
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-
+        displayInformation()
-        binding!!.userName.text =
-            getString(R.string.user_name, viewModel.userFirstName, viewModel.userLastName)
-        binding!!.identificationNumber.text = viewModel.userIdentificationNumber
         binding!!.clearButton.setOnClickListener { goToTheStart() }
     }
 
+    /**
+     * Assigns text values to the fields in order to display user information.
+     */
+    private fun displayInformation() {
+        binding!!.userName.text =
+            getString(R.string.user_name, viewModel.userFirstName, viewModel.userLastName)
+        binding!!.identificationNumber.text = viewModel.userIdentificationNumber
+        binding!!.gender.text = viewModel.gender
+        binding!!.expiration.text = viewModel.expiration.replace(" ", "/")
+        binding!!.citizenship.text = viewModel.citizenship
+    }
+
+    /**
+     * Navigates user back to the start and also deletes any temporary information.
+     */
     private fun goToTheStart() {
         viewModel.clearUserInfo()
         findNavController().navigate(R.id.action_userFragment_to_homeFragment)

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

@@ -0,0 +1,141 @@
+package com.tarkvaraprojekt.mobileauthapp.menu
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Button
+import androidx.fragment.app.Fragment
+import androidx.fragment.app.activityViewModels
+import androidx.navigation.fragment.findNavController
+import com.tarkvaraprojekt.mobileauthapp.R
+import com.tarkvaraprojekt.mobileauthapp.databinding.FragmentSettingsBinding
+import com.tarkvaraprojekt.mobileauthapp.model.SmartCardViewModel
+
+/**
+ * This fragment allows the user to save the CAN and the PIN 1 and also to delete them if necessary.
+ * Should only be accessible for the user from the HomeFragment and not during the
+ * authentication process itself.
+ */
+class SettingsFragment : Fragment() {
+
+    private val viewModel: SmartCardViewModel by activityViewModels()
+
+    private var binding: FragmentSettingsBinding? = null
+
+    private var showPin: Boolean = false
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        binding = FragmentSettingsBinding.inflate(inflater, container, false)
+        return binding!!.root
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        showCanField()
+        showPinField()
+        togglePinButton()
+        binding!!.canMenuAction.setOnClickListener { canAction() }
+        binding!!.pinMenuAction.setOnClickListener { pinAction() }
+        binding!!.pinMenuShow.setOnClickListener { togglePin() }
+        binding!!.returnButton.setOnClickListener { backToHome() }
+    }
+
+    /**
+     * Method for showing the CAN field to the user and can be used to refresh the field as well.
+     */
+    private fun showCanField() {
+        if (viewModel.userCan.length == 6) {
+            binding!!.canSaved.text = getString(R.string.saved_can, viewModel.userCan)
+            binding!!.canMenuAction.text = getString(R.string.can_delete)
+        } else {
+            binding!!.canSaved.text = getString(R.string.saved_can, getString(R.string.missing))
+            binding!!.canMenuAction.text = getString(R.string.can_add)
+        }
+    }
+
+    /**
+     * Method that allows the user to delete saved CAN from the device and also to save new a CAN if
+     * currently there is no CAN saved.
+     */
+    private fun canAction() {
+        if (viewModel.userCan.length == 6) {
+            viewModel.deleteCan(requireContext())
+            showCanField()
+        } else {
+            val action = SettingsFragmentDirections.actionSettingsFragmentToCanFragment(saving = true)
+            findNavController().navigate(action)
+        }
+    }
+
+    /**
+     * Method for showing the PIN 1 field to the user and can be used to refresh the field as well.
+     * The PIN 1 is hidden by default and when it is hidden it is always shown as **** despite the
+     * length of the PIN 1. Can be made visible with toggle button.
+     */
+    private fun showPinField() {
+        if (viewModel.userPin.length in 4..12) {
+            binding!!.pinMenuShow.visibility = Button.VISIBLE
+            if (showPin)
+                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!!.pinMenuAction.text = getString(R.string.pin1_delete)
+        } else {
+            binding!!.pinMenuShow.visibility = Button.GONE
+            binding!!.pinSaved.text = getString(R.string.saved_pin, getString(R.string.missing))
+            binding!!.pinMenuAction.text = getString(R.string.pin1_add)
+        }
+    }
+
+    /**
+     * Method that allows the user to delete saved PIN 1 from the device and also to save a new PIN 1 if
+     * currently there is no PIN 1 saved.
+     */
+    private fun pinAction() {
+        if (viewModel.userPin.length in 4..12) {
+            viewModel.deletePin(requireContext())
+            showPinField()
+        } else {
+            val action = SettingsFragmentDirections.actionSettingsFragmentToPinFragment(saving = true)
+            findNavController().navigate(action)
+        }
+    }
+
+    /**
+     * Hides the PIN 1 or makes it visible.
+     */
+    private fun togglePin() {
+        showPin = !showPin
+        togglePinButton()
+        showPinField()
+    }
+
+    /**
+     * Updates the text on the button that controls the visiblity of the PIN 1.
+     */
+    private fun togglePinButton() {
+        if (showPin) {
+            binding!!.pinMenuShow.text = getString(R.string.hide)
+        } else {
+            binding!!.pinMenuShow.text = getString(R.string.show)
+        }
+    }
+
+    /**
+     * Navigates back to home fragment.
+     */
+    private fun backToHome() {
+        findNavController().navigate(R.id.action_settingsFragment_to_homeFragment)
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        binding = null
+    }
+
+}

MobileAuthApp/app/src/main/java/com/tarkvaraprojekt/mobileauthapp/model/SmartCardViewModel.kt

@@ -1,6 +1,10 @@
 package com.tarkvaraprojekt.mobileauthapp.model
 
+import android.content.Context
+import android.content.SharedPreferences
 import androidx.lifecycle.ViewModel
+import androidx.security.crypto.EncryptedSharedPreferences
+import androidx.security.crypto.MasterKeys
 
 class SmartCardViewModel: ViewModel() {
 
@@ -19,12 +23,24 @@ class SmartCardViewModel: ViewModel() {
     private var _userIdentificationNumber: String = ""
     val userIdentificationNumber get() = _userIdentificationNumber
 
+    private var _gender: String = ""
+    val gender get() = _gender
+
+    private var _expiration: String = ""
+    val expiration get() = _expiration
+
+    private var _citizenship: String = ""
+    val citizenship get() = _citizenship
+
     fun clearUserInfo() {
         _userPin = ""
         _userCan = ""
         _userFirstName = ""
         _userLastName = ""
         _userIdentificationNumber = ""
+        _expiration = ""
+        _citizenship = ""
+        _gender = ""
     }
 
     fun setUserPin(newUserPin: String) {
@@ -47,4 +63,67 @@ class SmartCardViewModel: ViewModel() {
         _userIdentificationNumber = newUserIdentificationNumber
     }
 
+    fun setExpiration(newExpiration: String) {
+        _expiration = newExpiration
+    }
+
+    fun setCitizenship(newCitizenship: String) {
+        _citizenship = newCitizenship
+    }
+
+    fun setGender(newGender: String) {
+        _gender = newGender
+    }
+
+
+    private fun getSharedPreferences(context: Context): SharedPreferences {
+        val masterKeyAlias: String = MasterKeys.getOrCreate(MasterKeys.AES256_GCM_SPEC)
+        return EncryptedSharedPreferences.create(
+            "user_creds",
+            masterKeyAlias,
+            context,
+            EncryptedSharedPreferences.PrefKeyEncryptionScheme.AES256_SIV,
+            EncryptedSharedPreferences.PrefValueEncryptionScheme.AES256_GCM
+        )
+    }
+
+    fun storeCan(context: Context) {
+        val sharedPreferences: SharedPreferences = getSharedPreferences(context)
+        sharedPreferences.edit().putString("CAN", userCan).apply()
+    }
+
+    fun checkCan(context: Context) {
+        val sharedPreferences: SharedPreferences = getSharedPreferences(context)
+        val foundCan = sharedPreferences.getString("CAN", null)
+        foundCan?.let {
+            _userCan = it
+        }
+    }
+
+    // Must be called from AuthFragment as well, when CAN is wrong.
+    fun deleteCan(context: Context) {
+        val sharedPreferences: SharedPreferences = getSharedPreferences(context)
+        sharedPreferences.edit().remove("CAN").apply()
+        _userCan = ""
+    }
+
+    fun storePin(context: Context) {
+        val sharedPreferences: SharedPreferences = getSharedPreferences(context)
+        sharedPreferences.edit().putString("PIN1", userPin).apply()
+    }
+
+    fun checkPin(context: Context) {
+        val sharedPreferences: SharedPreferences = getSharedPreferences(context)
+        val foundPin = sharedPreferences.getString("PIN1", null)
+        foundPin?.let {
+            _userPin = it
+        }
+    }
+
+    fun deletePin(context: Context) {
+        val sharedPreferences: SharedPreferences = getSharedPreferences(context)
+        sharedPreferences.edit().remove("PIN1").apply()
+        _userPin = ""
+    }
+
 }

MobileAuthApp/app/src/main/res/color/stroke_color.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- For material card views as recommended in the material.io website -->
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:color="?attr/colorPrimary" android:state_checked="true"/>
+    <item android:alpha="0.12" android:color="?attr/colorOnSurface" android:state_checked="false"/>
+</selector>

MobileAuthApp/app/src/main/res/drawable/ic_baseline_language_24.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M11.99,2C6.47,2 2,6.48 2,12s4.47,10 9.99,10C17.52,22 22,17.52 22,12S17.52,2 11.99,2zM18.92,8h-2.95c-0.32,-1.25 -0.78,-2.45 -1.38,-3.56 1.84,0.63 3.37,1.91 4.33,3.56zM12,4.04c0.83,1.2 1.48,2.53 1.91,3.96h-3.82c0.43,-1.43 1.08,-2.76 1.91,-3.96zM4.26,14C4.1,13.36 4,12.69 4,12s0.1,-1.36 0.26,-2h3.38c-0.08,0.66 -0.14,1.32 -0.14,2 0,0.68 0.06,1.34 0.14,2L4.26,14zM5.08,16h2.95c0.32,1.25 0.78,2.45 1.38,3.56 -1.84,-0.63 -3.37,-1.9 -4.33,-3.56zM8.03,8L5.08,8c0.96,-1.66 2.49,-2.93 4.33,-3.56C8.81,5.55 8.35,6.75 8.03,8zM12,19.96c-0.83,-1.2 -1.48,-2.53 -1.91,-3.96h3.82c-0.43,1.43 -1.08,2.76 -1.91,3.96zM14.34,14L9.66,14c-0.09,-0.66 -0.16,-1.32 -0.16,-2 0,-0.68 0.07,-1.35 0.16,-2h4.68c0.09,0.65 0.16,1.32 0.16,2 0,0.68 -0.07,1.34 -0.16,2zM14.59,19.56c0.6,-1.11 1.06,-2.31 1.38,-3.56h2.95c-0.96,1.65 -2.49,2.93 -4.33,3.56zM16.36,14c0.08,-0.66 0.14,-1.32 0.14,-2 0,-0.68 -0.06,-1.34 -0.14,-2h3.38c0.16,0.64 0.26,1.31 0.26,2s-0.1,1.36 -0.26,2h-3.38z"/>
+</vector>

MobileAuthApp/app/src/main/res/drawable/ic_check_logo.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM10,17l-5,-5 1.41,-1.41L10,14.17l7.59,-7.59L19,8l-9,9z"/>
+</vector>

MobileAuthApp/app/src/main/res/drawable/ic_info_logo.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM13,17h-2v-6h2v6zM13,9h-2L11,7h2v2z"/>
+</vector>

MobileAuthApp/app/src/main/res/drawable/ic_settings.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M19.14,12.94c0.04,-0.3 0.06,-0.61 0.06,-0.94c0,-0.32 -0.02,-0.64 -0.07,-0.94l2.03,-1.58c0.18,-0.14 0.23,-0.41 0.12,-0.61l-1.92,-3.32c-0.12,-0.22 -0.37,-0.29 -0.59,-0.22l-2.39,0.96c-0.5,-0.38 -1.03,-0.7 -1.62,-0.94L14.4,2.81c-0.04,-0.24 -0.24,-0.41 -0.48,-0.41h-3.84c-0.24,0 -0.43,0.17 -0.47,0.41L9.25,5.35C8.66,5.59 8.12,5.92 7.63,6.29L5.24,5.33c-0.22,-0.08 -0.47,0 -0.59,0.22L2.74,8.87C2.62,9.08 2.66,9.34 2.86,9.48l2.03,1.58C4.84,11.36 4.8,11.69 4.8,12s0.02,0.64 0.07,0.94l-2.03,1.58c-0.18,0.14 -0.23,0.41 -0.12,0.61l1.92,3.32c0.12,0.22 0.37,0.29 0.59,0.22l2.39,-0.96c0.5,0.38 1.03,0.7 1.62,0.94l0.36,2.54c0.05,0.24 0.24,0.41 0.48,0.41h3.84c0.24,0 0.44,-0.17 0.47,-0.41l0.36,-2.54c0.59,-0.24 1.13,-0.56 1.62,-0.94l2.39,0.96c0.22,0.08 0.47,0 0.59,-0.22l1.92,-3.32c0.12,-0.22 0.07,-0.47 -0.12,-0.61L19.14,12.94zM12,15.6c-1.98,0 -3.6,-1.62 -3.6,-3.6s1.62,-3.6 3.6,-3.6s3.6,1.62 3.6,3.6S13.98,15.6 12,15.6z"/>
+</vector>

MobileAuthApp/app/src/main/res/layout/activity_main.xml

@@ -6,12 +6,28 @@
     android:layout_height="match_parent"
     tools:context=".MainActivity">
 
+    <androidx.appcompat.widget.Toolbar
+        android:id="@+id/toolbar"
+        android:layout_width="match_parent"
+        android:layout_height="?attr/actionBarSize"
+        android:background="?attr/colorPrimary"
+        android:elevation="4dp"
+        android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
+        app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="parent"/>
+
     <androidx.fragment.app.FragmentContainerView
         android:id="@+id/nav_host_fragment"
         android:name="androidx.navigation.fragment.NavHostFragment"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
+        android:layout_height="0dp"
         app:defaultNavHost="true"
-        app:navGraph="@navigation/nav_graph" />
+        app:navGraph="@navigation/nav_graph"
+        app:layout_constraintTop_toBottomOf="@id/toolbar"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintBottom_toBottomOf="parent"/>
 
 </androidx.constraintlayout.widget.ConstraintLayout>

MobileAuthApp/app/src/main/res/layout/fragment_auth.xml

@@ -14,7 +14,10 @@
         android:layout_margin="8dp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent">
+        app:layout_constraintTop_toTopOf="parent"
+        app:strokeWidth="1dp"
+        app:strokeColor="@color/stroke_color"
+        app:cardElevation="0dp">
 
         <LinearLayout
             android:layout_width="match_parent"
@@ -59,7 +62,7 @@
         android:layout_height="wrap_content"
         android:layout_marginTop="24dp"
         android:text="@string/next_text"
-        android:textSize="18sp"
+        android:textSize="15sp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toEndOf="@id/cancel_button"
         app:layout_constraintTop_toBottomOf="@id/card_view" />
@@ -70,7 +73,7 @@
         android:layout_height="wrap_content"
         android:layout_marginTop="24dp"
         android:text="@string/cancel_text"
-        android:textSize="18sp"
+        android:textSize="15sp"
         app:layout_constraintEnd_toStartOf="@id/next_button"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@id/card_view" />

MobileAuthApp/app/src/main/res/layout/fragment_can.xml

@@ -14,7 +14,10 @@
         android:layout_margin="8dp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent">
+        app:layout_constraintTop_toTopOf="parent"
+        app:strokeWidth="1dp"
+        app:strokeColor="@color/stroke_color"
+        app:cardElevation="0dp">
 
         <LinearLayout
             android:layout_width="match_parent"
@@ -63,7 +66,7 @@
         android:layout_height="wrap_content"
         android:layout_marginTop="24dp"
         android:text="@string/next_text"
-        android:textSize="18sp"
+        android:textSize="15sp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toEndOf="@id/cancel_button"
         app:layout_constraintTop_toBottomOf="@id/card_view" />
@@ -74,7 +77,7 @@
         android:layout_height="wrap_content"
         android:layout_marginTop="24dp"
         android:text="@string/cancel_text"
-        android:textSize="18dp"
+        android:textSize="15sp"
         app:layout_constraintEnd_toStartOf="@id/next_button"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@id/card_view" />

MobileAuthApp/app/src/main/res/layout/fragment_home.xml

@@ -7,23 +7,87 @@
     android:padding="24dp"
     tools:context=".HomeFragment">
 
-    <TextView
+    <LinearLayout
-        android:id="@+id/home_fragment_text"
+        android:id="@+id/saved_states"
-        android:layout_width="wrap_content"
+        android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:text="@string/home_fragment"
+        android:orientation="vertical"
-        app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintEnd_toEndOf="parent" />
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintEnd_toEndOf="parent">
+
+        <com.google.android.material.card.MaterialCardView
+            android:id="@+id/can_status"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="12dp"
+            app:strokeWidth="1dp"
+            app:strokeColor="@color/stroke_color"
+            app:cardElevation="0dp">
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <ImageView
+                    android:id="@+id/can_status_logo"
+                    android:layout_marginStart="12dp"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"/>
+
+                <TextView
+                    android:id="@+id/can_status_text"
+                    android:textSize="20sp"
+                    android:padding="12dp"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content" />
+
+            </LinearLayout>
+
+        </com.google.android.material.card.MaterialCardView>
+
+        <com.google.android.material.card.MaterialCardView
+            android:id="@+id/pin_status"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="12dp"
+            app:strokeWidth="1dp"
+            app:strokeColor="@color/stroke_color"
+            app:cardElevation="0dp">
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+
+                <ImageView
+                    android:id="@+id/pin_status_logo"
+                    android:layout_marginStart="12dp"
+                    android:layout_width="wrap_content"
+                    android:layout_height="match_parent"/>
+
+                <TextView
+                    android:id="@+id/pin_status_text"
+                    android:textSize="20sp"
+                    android:padding="12dp"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content" />
+
+            </LinearLayout>
+
+        </com.google.android.material.card.MaterialCardView>
+
+    </LinearLayout>
 
-    <!-- Temporary button for testing purposes -->
     <Button
         android:id="@+id/begin_button"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:text="@string/begin_text"
         android:layout_marginTop="24dp"
-        app:layout_constraintTop_toBottomOf="@id/home_fragment_text"
+        android:textSize="15sp"
+        app:layout_constraintTop_toBottomOf="@id/saved_states"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintEnd_toEndOf="parent"/>
 

MobileAuthApp/app/src/main/res/layout/fragment_pin.xml

@@ -14,7 +14,10 @@
         android:layout_margin="8dp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent">
+        app:layout_constraintTop_toTopOf="parent"
+        app:strokeWidth="1dp"
+        app:strokeColor="@color/stroke_color"
+        app:cardElevation="0dp">
 
         <LinearLayout
             android:layout_width="match_parent"
@@ -62,6 +65,7 @@
         android:layout_height="wrap_content"
         android:layout_marginTop="24dp"
         android:text="@string/next_text"
+        android:textSize="15sp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toEndOf="@id/cancel_button"
         app:layout_constraintTop_toBottomOf="@id/card_view" />
@@ -72,6 +76,7 @@
         android:layout_height="wrap_content"
         android:layout_marginTop="24dp"
         android:text="@string/cancel_text"
+        android:textSize="15sp"
         app:layout_constraintEnd_toStartOf="@id/next_button"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@id/card_view" />

MobileAuthApp/app/src/main/res/layout/fragment_settings.xml

@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_margin="12dp"
+    tools:context=".menu.SettingsFragment">
+
+    <com.google.android.material.card.MaterialCardView
+        android:id="@+id/settings_card"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:strokeWidth="1dp"
+        app:strokeColor="@color/stroke_color"
+        app:cardElevation="0dp">
+        <LinearLayout
+            android:id="@+id/can_settings"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            android:padding="12dp">
+            <TextView
+                android:id="@+id/can_saved"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:textSize="20sp"
+                android:padding="12dp"
+                android:text="@string/saved_can" />
+            <Button
+                android:id="@+id/can_menu_action"
+                android:layout_margin="12dp"
+                android:textSize="15sp"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"/>
+            <TextView
+                android:id="@+id/pin_saved"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:textSize="20sp"
+                android:padding="12dp"
+                android:text="@string/saved_pin"/>
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+                <Button
+                    android:id="@+id/pin_menu_action"
+                    android:layout_margin="12dp"
+                    android:textSize="15sp"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content" />
+                <Button
+                    android:id="@+id/pin_menu_show"
+                    android:layout_margin="12dp"
+                    android:textSize="15sp"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:visibility="gone"/>
+            </LinearLayout>
+        </LinearLayout>
+    </com.google.android.material.card.MaterialCardView>
+
+    <Button
+        android:id="@+id/return_button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/return_text"
+        android:layout_margin="24dp"
+        android:textSize="15sp"
+        app:layout_constraintTop_toBottomOf="@id/settings_card"
+        app:layout_constraintStart_toStartOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

MobileAuthApp/app/src/main/res/layout/fragment_user.xml

@@ -14,7 +14,10 @@
         android:layout_margin="8dp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent">
+        app:layout_constraintTop_toTopOf="parent"
+        app:strokeWidth="1dp"
+        app:strokeColor="@color/stroke_color"
+        app:cardElevation="0dp">
 
         <LinearLayout
             android:layout_width="match_parent"
@@ -54,6 +57,54 @@
                 android:textSize="20sp"
                 android:textStyle="bold" />
 
+            <TextView
+                android:id="@+id/gender_label"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="24dp"
+                android:text="@string/gender_label"
+                android:textSize="14sp" />
+
+            <TextView
+                android:id="@+id/gender"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="4dp"
+                android:textSize="20sp"
+                android:textStyle="bold" />
+
+            <TextView
+                android:id="@+id/expiration_label"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="24dp"
+                android:text="@string/expiration_label"
+                android:textSize="14sp" />
+
+            <TextView
+                android:id="@+id/expiration"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="4dp"
+                android:textSize="20sp"
+                android:textStyle="bold" />
+
+            <TextView
+                android:id="@+id/citizenship_label"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="24dp"
+                android:text="@string/citizenship_label"
+                android:textSize="14sp" />
+
+            <TextView
+                android:id="@+id/citizenship"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="4dp"
+                android:textSize="20sp"
+                android:textStyle="bold" />
+
         </LinearLayout>
 
     </com.google.android.material.card.MaterialCardView>

MobileAuthApp/app/src/main/res/menu/menu.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <item
+        android:id="@+id/menu_settings_option"
+        android:title="@string/menu_settings_title"
+        android:icon="@drawable/ic_settings"
+        app:showAsAction="always"/>
+
+</menu>

MobileAuthApp/app/src/main/res/navigation/nav_graph.xml

@@ -11,39 +11,69 @@
         android:label="fragment_home"
         tools:layout="@layout/fragment_home">
         <action
-            android:id="@+id/action_homeFragment_to_pinFragment"
+            android:id="@+id/action_homeFragment_to_settingsFragment"
-            app:destination="@id/pinFragment"
+            app:destination="@id/settingsFragment"
-            />
+            app:popUpTo="@id/homeFragment" />
+        <action
+            android:id="@+id/action_homeFragment_to_canFragment"
+            app:destination="@id/canFragment"
+            app:popUpTo="@id/homeFragment" />
     </fragment>
     <fragment
         android:id="@+id/pinFragment"
         android:name="com.tarkvaraprojekt.mobileauthapp.PinFragment"
         android:label="fragment_pin"
         tools:layout="@layout/fragment_pin">
-        <action
-            android:id="@+id/action_pinFragment_to_canFragment"
-            app:destination="@id/canFragment"
-            app:popUpTo="@id/homeFragment" />
         <action
             android:id="@+id/action_pinFragment_to_homeFragment"
             app:destination="@id/homeFragment"
             app:popUpTo="@id/homeFragment"
             app:popUpToInclusive="true" />
+        <action
+            android:id="@+id/action_pinFragment_to_settingsFragment"
+            app:destination="@id/settingsFragment"
+            app:popUpTo="@id/settingsFragment"
+            app:popUpToInclusive="true" />
+        <argument
+            android:name="saving"
+            android:defaultValue="false"
+            app:argType="boolean" />
+        <action
+            android:id="@+id/action_pinFragment_to_authFragment"
+            app:destination="@id/authFragment"
+            app:popUpTo="@id/homeFragment" />
+        <argument
+            android:name="reading"
+            app:argType="boolean"
+            android:defaultValue="false" />
     </fragment>
     <fragment
         android:id="@+id/canFragment"
         android:name="com.tarkvaraprojekt.mobileauthapp.CanFragment"
         android:label="fragment_can"
         tools:layout="@layout/fragment_can">
-        <action
-            android:id="@+id/action_canFragment_to_authFragment"
-            app:destination="@id/authFragment"
-            app:popUpTo="@id/homeFragment"/>
         <action
             android:id="@+id/action_canFragment_to_homeFragment"
             app:destination="@id/homeFragment"
             app:popUpTo="@id/homeFragment"
             app:popUpToInclusive="true" />
+        <action
+            android:id="@+id/action_canFragment_to_settingsFragment"
+            app:destination="@id/settingsFragment"
+            app:popUpTo="@id/settingsFragment"
+            app:popUpToInclusive="true" />
+        <argument
+            android:name="saving"
+            android:defaultValue="false"
+            app:argType="boolean" />
+        <action
+            android:id="@+id/action_canFragment_to_pinFragment"
+            app:destination="@id/pinFragment"
+            app:popUpTo="@id/homeFragment" />
+        <argument
+            android:name="reading"
+            app:argType="boolean"
+            android:defaultValue="false" />
     </fragment>
     <fragment
         android:id="@+id/authFragment"
@@ -71,4 +101,21 @@
             app:popUpTo="@id/homeFragment"
             app:popUpToInclusive="true" />
     </fragment>
+    <fragment
+        android:id="@+id/settingsFragment"
+        android:name="com.tarkvaraprojekt.mobileauthapp.menu.SettingsFragment"
+        android:label="fragment_settings"
+        tools:layout="@layout/fragment_settings">
+        <action
+            android:id="@+id/action_settingsFragment_to_canFragment"
+            app:destination="@id/canFragment" />
+        <action
+            android:id="@+id/action_settingsFragment_to_pinFragment"
+            app:destination="@id/pinFragment" />
+        <action
+            android:id="@+id/action_settingsFragment_to_homeFragment"
+            app:destination="@id/homeFragment"
+            app:popUpTo="@id/homeFragment"
+            app:popUpToInclusive="true" />
+    </fragment>
 </navigation>

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

@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Must translate to English, but should work now -->
+    <string name="app_name">NFC authentication</string>
+    <string name="home_fragment">Work in progress</string>
+
+    <!-- string resources for HomeFragment -->
+    <string name="pin_status_saved">PIN 1 on salvestatud</string>
+    <string name="pin_status_negative">PIN 1 ei ole salvestatud</string>
+    <string name="can_status_saved">CAN on salvestatud</string>
+    <string name="can_status_negative">CAN ei ole salvestatud</string>
+
+    <string name="begin_text">LOE ID KAARTI</string>
+    <string name="next_text">EDASI</string>
+    <string name="cancel_text">KATKESTA</string>
+    <string name="save_text">SALVESTA</string>
+    <string name="deny_text">EI</string>
+    <string name="return_text">TAGASI</string>
+
+    <!-- string resources for PinFragment -->
+    <string name="pin_fragment">Palun sisesta PIN 1</string>
+    <string name="enter_pin">PIN 1</string>
+    <string name="example_pin">Näide. 1234</string>
+    <string name="length_pin">PIN 1 lubatud pikkus on 4..12</string>
+    <string name="pin_save_request">Praegu ei ole rakenduses PIN 1 salvestatud. Kas sa soovid sisestatud PIN 1-te salvestada? Sellisel juhul sisestatakse see järgmisel korral automaatselt. Salvestatud PIN 1-te saab alati menüüs muuta ja kustutada.</string>
+    <string name="save_pin_title">Salvesta PIN 1</string>
+
+    <!-- string resources for CanFragment -->
+    <string name="example_can">Näide. 123456</string>
+    <string name="text_can">CAN</string>
+    <string name="enter_can">Sisesta ID kaardi CAN (Card Access Number)</string>
+    <string name="length_can">CANi pikkus on vale</string>
+    <string name="card_detected">Kaart on tuvastatud. Hoia kaarti vastu telefoni.</string>
+    <string name="data_read">Andmed loetud. Võid edasi minna.</string>
+    <string name="can_save_request">Praegu ei ole rakenduses CAN salvestatud. Kas sa soovid sisestatud CANi salvestada? Sellisel juhul sisestatakse see järgmisel korral automaatselt. Salvestatud CANi saab alati menüüs muuta ja kustutada.</string>
+    <string name="save_can_title">Salvesta CAN</string>
+
+    <!-- string resources for AuthFragment layout -->
+    <string name="auth_instruction_text">ID kaardiga ühenduse loomiseks pane kaart vastu telefoni</string>
+    <string name="time_left">Aega on jäänud %d sek</string>
+    <string name="no_time">Aeg on otsas</string>
+    <string name="no_success">Vale CAN</string>
+
+    <!-- string resources for UserFragment layout -->
+    <string name="user_name_label">NIMI</string>
+    <string name="user_name">%1$s %2$s</string>
+    <string name="identification_number_label">ISIKUKOOD</string>
+    <string name="expiration_label">KEHTIV KUNI</string>
+    <string name="citizenship_label">KODAKONDSUS</string>
+    <string name="gender_label">SUGU</string>
+    <string name="clear_button">UNUSTA</string>
+
+    <!-- menu -->
+    <string name="menu_settings_title">Seaded</string>
+    <string name="menu_language_title">Keel</string>
+    <string name="menu_action_unavailable">Toiming pole hetkel saadaval</string>
+    <string name="saved_can">CAN: %s</string>
+    <string name="can_add">Lisa CAN</string>
+    <string name="can_delete">Kustuta CAN</string>
+    <string name="saved_pin">PIN1: %s</string>
+    <string name="pin1_add">Lisa PIN1</string>
+    <string name="pin1_delete">Kustuta PIN1</string>
+    <string name="missing">puudub</string>
+    <string name="show">NÄITA</string>
+    <string name="hide">PEIDA</string>
+    <string name="hidden_pin">****</string>
+    <string name="unavailable">Seaded pole hetkel saadaval</string>
+</resources>

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

@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">NFC authentication</string>
+    <string name="home_fragment">Work in progress</string>
+
+    <string name="begin_text">LOE ID KAARTI</string>
+    <string name="next_text">EDASI</string>
+    <string name="cancel_text">KATKESTA</string>
+    <string name="save_text">SALVESTA</string>
+    <string name="deny_text">EI</string>
+    <string name="return_text">TAGASI</string>
+
+    <!-- string resources for HomeFragment -->
+    <string name="pin_status_saved">PIN 1 on salvestatud</string>
+    <string name="pin_status_negative">PIN 1 ei ole salvestatud</string>
+    <string name="can_status_saved">CAN on salvestatud</string>
+    <string name="can_status_negative">CAN ei ole salvestatud</string>
+
+    <!-- string resources for PinFragment -->
+    <string name="pin_fragment">Palun sisesta PIN 1</string>
+    <string name="enter_pin">PIN 1</string>
+    <string name="example_pin">Näide. 1234</string>
+    <string name="length_pin">PIN 1 lubatud pikkus on 4..12</string>
+    <string name="pin_save_request">Praegu ei ole rakenduses PIN 1 salvestatud. Kas sa soovid sisestatud PIN 1-te salvestada? Sellisel juhul sisestatakse see järgmisel korral automaatselt. Salvestatud PIN 1-te saab alati menüüs muuta ja kustutada.</string>
+    <string name="save_pin_title">Salvesta PIN 1</string>
+
+    <!-- string resources for CanFragment -->
+    <string name="example_can">Näide. 123456</string>
+    <string name="text_can">CAN</string>
+    <string name="enter_can">Sisesta ID kaardi CAN (Card Access Number)</string>
+    <string name="length_can">CANi pikkus on vale</string>
+    <string name="card_detected">Kaart on tuvastatud. Hoia kaarti vastu telefoni.</string>
+    <string name="data_read">Andmed loetud. Võid edasi minna.</string>
+    <string name="can_save_request">Praegu ei ole rakenduses CAN salvestatud. Kas sa soovid sisestatud CANi salvestada? Sellisel juhul sisestatakse see järgmisel korral automaatselt. Salvestatud CANi saab alati menüüs muuta ja kustutada.</string>    <string name="save_can_title">Salvesta CAN</string>
+
+    <!-- string resources for AuthFragment layout -->
+    <string name="auth_instruction_text">ID kaardiga ühenduse loomiseks pane kaart vastu telefoni</string>
+    <string name="time_left">Aega on jäänud %d sek</string>
+    <string name="no_time">Aeg on otsas</string>
+    <string name="no_success">Vale CAN</string>
+
+    <!-- string resources for UserFragment layout -->
+    <string name="user_name_label">NIMI</string>
+    <string name="user_name">%1$s %2$s</string>
+    <string name="identification_number_label">ISIKUKOOD</string>
+    <string name="clear_button">UNUSTA</string>
+    <string name="expiration_label">KEHTIV KUNI</string>
+    <string name="citizenship_label">KODAKONDSUS</string>
+    <string name="gender_label">SUGU</string>
+
+    <!-- menu -->
+    <string name="menu_settings_title">Seaded</string>
+    <string name="menu_language_title">Keel</string>
+    <string name="menu_action_unavailable">Toiming pole hetkel saadaval</string>
+    <string name="saved_can">CAN: %s</string>
+    <string name="can_add">Lisa CAN</string>
+    <string name="can_delete">Kustuta CAN</string>
+    <string name="saved_pin">PIN1: %s</string>
+    <string name="pin1_add">Lisa PIN1</string>
+    <string name="pin1_delete">Kustuta PIN1</string>
+    <string name="missing">puudub</string>
+    <string name="show">NÄITA</string>
+    <string name="hide">PEIDA</string>
+    <string name="hidden_pin">****</string>
+    <string name="unavailable">Seaded pole hetkel saadaval</string>
+</resources>

MobileAuthApp/app/src/main/res/values-night/themes.xml

@@ -1,6 +1,6 @@
 <resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Base application theme. -->
-    <style name="Theme.MobileAuthApp" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+    <style name="Theme.MobileAuthApp" parent="Theme.MaterialComponents.DayNight.NoActionBar">
         <!-- Primary brand color. -->
         <item name="colorPrimary">@color/blue_200</item>
         <item name="colorPrimaryVariant">@color/blue_700</item>

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

@@ -13,5 +13,4 @@
     <color name="blue_700">#1976d2</color>
     <color name="orange_200">#ffcc80</color>
     <color name="orange_700">#f57c00</color>
-
 </resources>

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

@@ -1,16 +1,27 @@
 <resources>
-    <string name="app_name">Mobile Authenticator</string>
+    <string name="app_name">NFC authentication</string>
     <string name="home_fragment">Work in progress</string>
 
-    <string name="begin_text">ALUSTA</string>
+    <string name="begin_text">LOE ID KAARTI</string>
     <string name="next_text">EDASI</string>
     <string name="cancel_text">KATKESTA</string>
+    <string name="save_text">SALVESTA</string>
+    <string name="deny_text">EI</string>
+    <string name="return_text">TAGASI</string>
+
+    <!-- string resources for HomeFragment -->
+    <string name="pin_status_saved">PIN 1 on salvestatud</string>
+    <string name="pin_status_negative">PIN 1 ei ole salvestatud</string>
+    <string name="can_status_saved">CAN on salvestatud</string>
+    <string name="can_status_negative">CAN ei ole salvestatud</string>
 
     <!-- string resources for PinFragment -->
     <string name="pin_fragment">Palun sisesta PIN 1</string>
     <string name="enter_pin">PIN 1</string>
     <string name="example_pin">Näide. 1234</string>
     <string name="length_pin">PIN 1 lubatud pikkus on 4..12</string>
+    <string name="pin_save_request">Praegu ei ole rakenduses PIN 1 salvestatud. Kas sa soovid sisestatud PIN 1-te salvestada? Sellisel juhul sisestatakse see järgmisel korral automaatselt. Salvestatud PIN 1-te saab alati menüüs muuta ja kustutada.</string>
+    <string name="save_pin_title">Salvesta PIN 1</string>
 
     <!-- string resources for CanFragment -->
     <string name="example_can">Näide. 123456</string>
@@ -19,6 +30,8 @@
     <string name="length_can">CANi pikkus on vale</string>
     <string name="card_detected">Kaart on tuvastatud. Hoia kaarti vastu telefoni.</string>
     <string name="data_read">Andmed loetud. Võid edasi minna.</string>
+    <string name="can_save_request">Praegu ei ole rakenduses CAN salvestatud. Kas sa soovid sisestatud CANi salvestada? Sellisel juhul sisestatakse see järgmisel korral automaatselt. Salvestatud CANi saab alati menüüs muuta ja kustutada.</string>
+    <string name="save_can_title">Salvesta CAN</string>
 
     <!-- string resources for AuthFragment layout -->
     <string name="auth_instruction_text">ID kaardiga ühenduse loomiseks pane kaart vastu telefoni</string>
@@ -30,5 +43,24 @@
     <string name="user_name_label">NIMI</string>
     <string name="user_name">%1$s %2$s</string>
     <string name="identification_number_label">ISIKUKOOD</string>
+    <string name="expiration_label">KEHTIV KUNI</string>
+    <string name="citizenship_label">KODAKONDSUS</string>
+    <string name="gender_label">SUGU</string>
     <string name="clear_button">UNUSTA</string>
+
+    <!-- menu -->
+    <string name="menu_settings_title">Seaded</string>
+    <string name="menu_language_title">Keel</string>
+    <string name="menu_action_unavailable">Toiming pole hetkel saadaval</string>
+    <string name="saved_can">CAN: %s</string>
+    <string name="can_add">Lisa CAN</string>
+    <string name="can_delete">Kustuta CAN</string>
+    <string name="saved_pin">PIN1: %s</string>
+    <string name="pin1_add">Lisa PIN 1</string>
+    <string name="pin1_delete">Kustuta PIN 1</string>
+    <string name="missing">puudub</string>
+    <string name="show">NÄITA</string>
+    <string name="hide">PEIDA</string>
+    <string name="hidden_pin">****</string>
+    <string name="unavailable">Seaded pole hetkel saadaval</string>
 </resources>

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

@@ -1,6 +1,6 @@
 <resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Base application theme. -->
-    <style name="Theme.MobileAuthApp" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+    <style name="Theme.MobileAuthApp" parent="Theme.MaterialComponents.DayNight.NoActionBar">
         <!-- Primary brand color. -->
         <item name="colorPrimary">@color/blue_500</item>
         <item name="colorPrimaryVariant">@color/blue_700</item>