app/build.gradle

@@ -13,7 +13,7 @@ android {
         minSdkVersion 23
         targetSdkVersion 28
         versionCode 14
-        versionName "0.4.94"
+        versionName "0.4.95"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         resValue "string", "build_time", buildTime()
         setProperty("archivesBaseName", "projectlaogai-$versionName")
@@ -24,6 +24,7 @@ android {
             minifyEnabled false
             shrinkResources false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            versionNameSuffix "-release"
         }
         debug {
             versionNameSuffix "-debug"

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

@@ -22,12 +22,12 @@
 
 package org.mosad.seil0.projectlaogai
 
+import android.app.PendingIntent
 import android.content.Intent
+import android.content.IntentFilter
 import android.graphics.Color
-import android.nfc.NdefMessage
 import android.nfc.NfcAdapter
-import android.nfc.Tag
+import android.nfc.tech.NfcA
-import android.nfc.tech.IsoDep
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
@@ -37,20 +37,16 @@ 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.codebutler.farebot.card.desfire.DesfireProtocol
 import com.google.android.material.navigation.NavigationView
 import kotlinx.android.synthetic.main.activity_main.*
 import kotlinx.android.synthetic.main.app_bar_main.*
 import org.mosad.seil0.projectlaogai.controller.CacheController
+import org.mosad.seil0.projectlaogai.controller.NFCMensaCard
 import org.mosad.seil0.projectlaogai.controller.PreferencesController
 import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cColorAccent
 import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cColorPrimary
 import org.mosad.seil0.projectlaogai.fragments.*
 import kotlin.system.measureTimeMillis
-import com.codebutler.farebot.Utils.selectAppFile
-import com.codebutler.farebot.card.desfire.DesfireFileSettings
-import java.lang.Exception
 
 
 // TODO save the current fragment to show it when the app is restarted
@@ -58,6 +54,11 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
 
     private var activeFragment: Fragment = HomeFragment() // the currently active fragment, home at the start
 
+    private lateinit var adapter: NfcAdapter
+    private lateinit var pendingIntent: PendingIntent
+    private lateinit var intentFiltersArray: Array<IntentFilter>
+    private lateinit var techListsArray: Array<Array<String>>
+
     override fun onCreate(savedInstanceState: Bundle?) {
         Aesthetic.attach(this)
         super.onCreate(savedInstanceState)
@@ -67,6 +68,7 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
         // load mensa, timetable and color
         load()
         initAesthetic()
+        initForegroundDispatch()
 
         //init home fragment
         val fragmentTransaction: FragmentTransaction = supportFragmentManager.beginTransaction()
@@ -81,65 +83,37 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
 
         nav_view.setNavigationItemSelectedListener(this)
 
-        // TODO nfc stuff, needs to move to it's own function
+        // if we get an NFC read intent while the app is closed call readBalance
-        if (NfcAdapter.ACTION_TECH_DISCOVERED == intent.action) {
+        if (NfcAdapter.ACTION_TECH_DISCOVERED == intent.action)
-            val appId = 0x5F8415
+            NFCMensaCard.readBalance(intent, this)
-            val fileId = 1
-
-            val tag: Tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG)
-
-            val isoDep = IsoDep.get(tag)
-            isoDep.connect()
-
-            val card = DesfireProtocol(isoDep)
-            val settings = selectAppFile(card, appId, fileId)
-
-            if (settings is DesfireFileSettings.ValueDesfireFileSettings) {
-                val data = try {
-                    card.readValue(fileId)
-                } catch (ex: Exception) { 0 }
-
-                MaterialDialog(this)
-                    .title(text = "Mensa balance")
-                    .message(text = "current: ${data / 1000}.${(data % 1000) / 10}€\n" +
-                            "latest:    ${settings.value / 1000}.${(settings.value % 1000) / 10}€")
-                    .show()
-            }
-        }
     }
 
     override fun onNewIntent(intent: Intent) {
         super.onNewIntent(intent)
 
-        if (NfcAdapter.ACTION_TECH_DISCOVERED == intent.action) {
+        if (NfcAdapter.ACTION_TECH_DISCOVERED == intent.action)
-            intent.getParcelableArrayExtra(NfcAdapter.EXTRA_TAG)?.also { rawMessages ->
+            NFCMensaCard.readBalance(intent, this)
-                val messages: List<NdefMessage> = rawMessages.map { it as NdefMessage }
-                // Process the messages array.
-
-                MaterialDialog(this)
-                    .title(text = "nfc tag detected (onNewIntent)")
-                    .message(text = messages[0].toString())
-                    .show()
-
-            }
-        }
     }
 
 
     override fun onResume() {
         super.onResume()
         Aesthetic.resume(this)
+        adapter.enableForegroundDispatch(this, pendingIntent, intentFiltersArray, techListsArray)
+
     }
 
     override fun onPause() {
         super.onPause()
         Aesthetic.pause(this)
+        adapter.disableForegroundDispatch(this)
     }
 
     override fun onBackPressed() {
         if (drawer_layout.isDrawerOpen(GravityCompat.START)) {
             drawer_layout.closeDrawer(GravityCompat.START)
         } else {
+            // TODO only call on double tap
             super.onBackPressed()
         }
     }
@@ -214,4 +188,15 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
         }
     }
 
+    private fun initForegroundDispatch() {
+        intentFiltersArray = arrayOf(IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED).apply { addDataType("*/*") })
+        techListsArray = arrayOf(arrayOf(NfcA::class.java.name))
+        adapter = NfcAdapter.getDefaultAdapter(this)
+        pendingIntent = PendingIntent.getActivity(
+            this, 0,
+            Intent(this, javaClass).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0
+        )
+
+    }
+
 }

app/src/main/java/org/mosad/seil0/projectlaogai/controller/NFCMensaCard.kt

@@ -0,0 +1,93 @@
+/**
+ * ProjectLaogai
+ *
+ * Copyright 2019  <seil0@mosad.xyz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ *
+ */
+
+package org.mosad.seil0.projectlaogai.controller
+
+import android.content.Context
+import android.content.Intent
+import android.nfc.NfcAdapter
+import android.nfc.Tag
+import android.nfc.tech.IsoDep
+import com.afollestad.materialdialogs.MaterialDialog
+import com.codebutler.farebot.Utils
+import com.codebutler.farebot.card.desfire.DesfireFileSettings
+import com.codebutler.farebot.card.desfire.DesfireProtocol
+import org.mosad.seil0.projectlaogai.R
+import java.lang.Exception
+
+class NFCMensaCard {
+
+    companion object {
+        private const val appId = 0x5F8415
+        private const val fileId = 1
+
+        /**
+         * read the current balance and last payment from the mensa card
+         * @param intent a nfc intent
+         * @param context the context to show the dialog in
+         */
+        fun readBalance(intent: Intent, context: Context) {
+            val tag: Tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG)
+            val isoDep = IsoDep.get(tag)
+            isoDep.connect()
+
+            val card = DesfireProtocol(isoDep)
+            val settings = Utils.selectAppFile(card, appId, fileId)
+
+            if (settings is DesfireFileSettings.ValueDesfireFileSettings) {
+                val data = try {
+                    card.readValue(fileId)
+                } catch (ex: Exception) { 0 }
+
+                MaterialDialog(context)
+                    .title(R.string.mensa_credit)
+                    .message(text = lookAtMe(context, data, settings.value))
+                    .show()
+            }
+        }
+
+        /**
+         * generate the values for current balance and last payment
+         * if the easter egg is active use schmeckles as currency
+         * 0.0000075 = 1.11 / 148 / 1000 (dollar / shm / card multiplier)
+         * @param context the context to access resources
+         * @param currentRaw the raw card value of the current balance
+         * @param lastRaw the raw card value of the last payment
+         * @return the message containing all values
+         */
+        private fun lookAtMe(context: Context, currentRaw: Int, lastRaw: Int): String {
+            val current = if (!PreferencesController.oGiants) {
+                String.format("%.2f €", (currentRaw.toFloat() / 1000))
+            } else {
+                String.format("%.4f shm", (currentRaw.toFloat() * 0.0000075))
+            }
+
+            val last = if (!PreferencesController.oGiants) {
+                String.format("%.2f €", (lastRaw.toFloat() / 1000))
+            } else {
+                String.format("%.4f shm", (lastRaw.toFloat() * 0.0000075))
+            }
+
+            return context.resources.getString(R.string.mensa_current, current) + context.resources.getString(R.string.mensa_last, last)
+        }
+    }
+}

app/src/main/java/org/mosad/seil0/projectlaogai/controller/PreferencesController.kt

@@ -42,6 +42,7 @@ class PreferencesController {
         var cColorAccent: Int = Color.parseColor("#3F51B5")
         var cCourse = Course("https://www.hs-offenburg.de/index.php?id=6627&class=class&iddV=DA64F6FE-9DDB-429E-A677-05D0D40CB636&week=0", "AI3")
         var cShowBuffet = true
+        var oGiants = false
 
         // the save function
         fun save(context: Context) {

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

@@ -124,6 +124,11 @@ class SettingsFragment : Fragment() {
             // open a new dialog
         }
 
+        linLayoutUser.setOnLongClickListener {
+            PreferencesController.oGiants = true // enable easter egg
+            return@setOnLongClickListener true
+        }
+
         linLayoutCourse.setOnClickListener {
             selectCourse(context!!)
             txtView_Course.text = cCourse.courseName // update txtView

app/src/main/res/layout/nav_header_main.xml

@@ -19,7 +19,7 @@
             android:layout_height="wrap_content"
             android:paddingTop="@dimen/nav_header_vertical_spacing"
             app:srcCompat="@mipmap/ic_laogai_icon"
-            android:contentDescription="@string/nav_header_desc"
+            android:contentDescription="@string/app_name"
             android:id="@+id/imageView"/>
 
     <TextView

app/src/main/res/raw/notices.xml

@@ -27,8 +27,8 @@
     <notice>
         <name>farebot part for desfire cards</name>
         <url>https://github.com/codebutler/farebot</url>
-        <copyright />
+        <copyright>Copyright 2011-2012, 2014, 2016 Eric Butler</copyright>
-        <license>GNU General Public License v3.0</license>
+        <license>GNU General Public License 3.0</license>
     </notice>
     <notice>
         <name>Android Support Libraries</name>

app/src/main/res/values-de-rDE/strings.xml

@@ -1,36 +1,50 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
+    <string name="navigation_drawer_close">Navigationsleiste schließen</string>
+    <string name="navigation_drawer_open">Navigationsleiste öffnen</string>
+
+    <!-- nav-view -->
     <string name="home">Home</string>
     <string name="mensa">Mensa</string>
     <string name="timetable">Stundenplan</string>
     <string name="moodle">Moodle</string>
     <string name="settings">Einstellungen</string>
+
+    <!-- fragment_home -->
     <string name="meal">Essen</string>
     <string name="today_date">Heute, %1$s</string>
     <string name="tomorrow_date">Morgen, %1$s</string>
     <string name="mensa_closed">keine Essensausgabe</string>
     <string name="no_more_food">Diese Woche keine weitere Essensausgabe</string>
     <string name="no_lesson_today">heute keine Vorlesung!</string>
-    <string name="error">Fehler</string>
+
-    <string name="timetable_error">Stundenplan konnte nicht geladen werden!</string>
+    <!-- fragment_settings -->
     <string name="info">Info</string>
     <string name="user">Benutzer</string>
     <string name="course_desc">Tippen, um den Kurs zu ändern</string>
-    <string name="primary_color">Hauptfarbe</string>
-    <string name="primary_color_desc">Die Primärfarbe, Standard ist Schwarz.</string>
-    <string name="accent_color">Akzentfarbe</string>
-    <string name="accent_color_desc">Die Akzentfarbe, Standard ist indigo</string>
-    <string name="select">auswählen</string>
-    <string name="close">schließen</string>
     <string name="about_dialog_heading">Über</string>
-    <string name="loading_timetable">lade Stundenplan …</string>
+    <string name="licenses">Lizenzen</string>
-    <string name="navigation_drawer_close">Navigationsleiste schließen</string>
-    <string name="navigation_drawer_open">Navigationsleiste öffnen</string>
-    <string name="show_buffet">Buffet immer anzeigen</string>
-    <string name="select_course">Wähle deinen Studiengang aus</string>
     <string name="theme">Design</string>
     <string name="themeLight">Hell</string>
     <string name="themeDark">Dunkel</string>
     <string name="themeBlack">Schwarz</string>
-    <string name="licenses">Lizenzen</string>
+    <string name="primary_color">Hauptfarbe</string>
+    <string name="primary_color_desc">Die Primärfarbe, Standard ist Schwarz.</string>
+    <string name="accent_color">Akzentfarbe</string>
+    <string name="accent_color_desc">Die Akzentfarbe, Standard ist indigo</string>
+    <string name="show_buffet">Buffet immer anzeigen</string>
+
+    <!-- dialogs -->
+    <string name="select_course">Wähle deinen Studiengang</string>
+    <string name="loading_timetable">lade Stundenplan …</string>
+    <string name="select">auswählen</string>
+    <string name="close">schließen</string>
+    <string name="mensa_credit">Mensa-Guthaben</string>
+    <string name="mensa_current">aktuell: %1$s\n</string>
+    <string name="mensa_last">letzte Abbuchung: %1$s</string>
+
+    <!-- errors -->
+    <string name="error">Fehler</string>
+    <string name="timetable_error">Stundenplan konnte nicht geladen werden!</string>
+
 </resources>

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

@@ -4,31 +4,31 @@
     <string name="navigation_drawer_close">Close navigation drawer</string>
     <string name="nav_header_title" translatable="false">Project Laogai</string>
     <string name="nav_header_subtitle" translatable="false">seil0@mosad.xyz</string>
-    <string name="nav_header_desc" translatable="false">Project Laogai</string>
 
+    <!-- nav-view -->
     <string name="home">Home</string>
     <string name="mensa">Mensa</string>
     <string name="timetable">Timetable</string>
     <string name="moodle">Moodle</string>
     <string name="settings">Settings</string>
 
+    <!-- fragment_home -->
     <string name="meal">Meal</string>
     <string name="today_date">Today, %1$s</string>
     <string name="tomorrow_date">Tomorrow, %1$s</string>
     <string name="mensa_closed">the Mensa is closed</string>
     <string name="no_more_food">No more Food this week</string>
+    <string name="no_lesson_today">"No lecture today!"</string>
 
+    <!-- fragment_settings -->
     <string name="info">Info</string>
     <string name="user">User</string>
     <string name="course_desc">Tap to change course</string>
-    <string name="select_course">Select your course</string>
-    <string name="loading_timetable">loading timetable …</string>
     <string name="about_dialog_heading">About</string>
     <string name="about_dialog_text" translatable="false">"This software is made by @Seil0 and is published under the terms and conditions of GPL 3. For further information visit \ngit.mosad.xyz/Seil0/ProjectLaogai \n\n© 2018-2019 seil0@mosad.xyz "</string>
     <string name="about_txtView" translatable="false">hso App by @Seil0</string>
     <string name="about_version" translatable="false">Version %1$s (%2$s)</string>
     <string name="licenses">Licenses</string>
-
     <string name="theme">Theme</string>
     <string name="themeLight">Light</string>
     <string name="themeDark">Dark</string>
@@ -38,18 +38,28 @@
     <string name="accent_color">Accent color</string>
     <string name="accent_color_desc">The accent color, default is indigo.</string>
     <string name="show_buffet">Always show buffet</string>
+
+    <!-- dialogs -->
+    <string name="select_course">Select your course</string>
+    <string name="loading_timetable">loading timetable …</string>
     <string name="select">select</string>
     <string name="close">close</string>
+    <string name="mensa_credit">Mensa credit</string>
+    <string name="mensa_current">current: %1$s\n</string>
+    <string name="mensa_last">last: %1$s</string>
 
-    <string name="sample_user" translatable="false">SampleUser@stud.hs-offenburg.de</string>
+
+    <!-- sample strings -->
+    <string name="sample_user" translatable="false">spinefield@stud.hs-offenburg.de</string>
     <string name="sample_course" translatable="false">SampleCourse 3</string>
     <string name="sample_date" translatable="false">Montag, 30.02</string>
     <string name="a_time" translatable="false">0.00 – 23.59</string>
 
-    <string name="no_lesson_today">"No lecture today!"</string>
+    <!-- errors -->
     <string name="error">Error</string>
     <string name="timetable_error">Could not load timetable!"</string>
 
+    <!-- save keys -->
     <string name="save_key_course" translatable="false">org.mosad.seil0.projectlaogai.course</string>
     <string name="save_key_courseTTLink" translatable="false">org.mosad.seil0.projectlaogai.courseTTLink</string>
     <string name="save_key_colorPrimary" translatable="false">org.mosad.seil0.projectlaogai.colorPrimary</string>