first bits of the nfc reader

app/src/main/java/org/mosad/seil0/projectlaogai/MainActivity.kt

@@ -23,6 +23,8 @@
 package org.mosad.seil0.projectlaogai
 
 import android.graphics.Color
+import android.nfc.NfcAdapter
+import android.nfc.Tag
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
@@ -32,6 +34,7 @@ import androidx.core.view.GravityCompat
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentTransaction
 import com.afollestad.aesthetic.Aesthetic
+import com.afollestad.materialdialogs.MaterialDialog
 import com.google.android.material.navigation.NavigationView
 import kotlinx.android.synthetic.main.activity_main.*
 import kotlinx.android.synthetic.main.app_bar_main.*
@@ -42,6 +45,7 @@ import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.
 import org.mosad.seil0.projectlaogai.fragments.*
 import kotlin.system.measureTimeMillis
 
+// TODO save the current fragment to show it when the app is restarted
 class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelectedListener {
 
     private var activeFragment: Fragment = HomeFragment() // the currently active fragment, home at the start
@@ -68,6 +72,16 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
         toggle.syncState()
 
         nav_view.setNavigationItemSelectedListener(this)
+
+        // TODO nfc stuff, needs to move to it's own function
+        if (intent.action == NfcAdapter.ACTION_TECH_DISCOVERED) {
+
+            val tag: Tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG)
+            MaterialDialog(this)
+                .title(text = "nfc tag detected")
+                .message(text = tag.toString())
+                .show()
+        }
     }
 
     override fun onResume() {

app/src/main/java/org/mosad/seil0/projectlaogai/fragments/MensaFragment.kt

@@ -43,7 +43,6 @@ import org.mosad.seil0.projectlaogai.uicomponents.MealLinearLayout
 /**
  * The mensa controller class
  * contains all needed parts to display and the mensa detail screen
- * TODO investigate reading the mensa card value via nfc in a background task, show value if card detected
  */
 class MensaFragment : Fragment() {