new apk

app/src/main/java/com/dano/test1/AES256Helper.kt

@@ -1,4 +1,3 @@
-// app/src/main/java/com/dano/test1/AES256Helper.kt
 package com.dano.test1
 
 import java.io.File
@@ -11,7 +10,6 @@ import kotlin.math.min
 
 object AES256Helper {
 
-    // HKDF-SHA256: IKM = tokenHex->bytes, salt="", info="qdb-aes", len=32
     private fun hkdfFromToken(tokenHex: String, info: String = "qdb-aes", len: Int = 32): ByteArray {
         val ikm = hexToBytes(tokenHex)
         val mac = Mac.getInstance("HmacSHA256")

app/src/main/java/com/dano/test1/AppDatabase.kt

@@ -3,6 +3,18 @@ package com.dano.test1.data
 import androidx.room.Database
 import androidx.room.RoomDatabase
 
+/*
+Zentrale Room-Datenbank der App. Diese Klasse beschreibt:
+ - welche Tabellen (entities) es gibt: Client, Questionnaire, Question, Answer, CompletedQuestionnaire
+ - die Datenbank-Version (version = 1) für Migrations/Schema-Updates
+
+Über die abstrakten DAO-Getter (clientDao(), questionnaireDao(), …) erhält der Rest der App Typsichere Zugriffe auf die jeweiligen Tabellen.
+
+Hinweis:
+ - Room erzeugt zur Build-Zeit die konkrete Implementierung dieser abstrakten Klasse.
+ - Eine Instanz der Datenbank wird typischerweise per Room.databaseBuilder(...) erstellt und als Singleton verwendet.
+ */
+
 @Database(
     entities = [
         Client::class,

app/src/main/java/com/dano/test1/Daos.kt

@@ -2,8 +2,18 @@ package com.dano.test1.data
 
 import androidx.room.*
 
+/*
+Data-Access-Objekte (DAOs) für die Room-Datenbank.
+Sie kapseln alle typsicheren Lese-/Schreiboperationen für die Tabellen clients, questionnaires, questions, answers und completed_questionnaires.
+
+Hinweis:
+ - Die konkreten Implementierungen erzeugt Room zur Build-Zeit.
+ - DAOs werden über die AppDatabase (Room.databaseBuilder(...)) bezogen.
+*/
+
 @Dao
 interface ClientDao {
+
     @Insert(onConflict = OnConflictStrategy.IGNORE)
     suspend fun insertClient(client: Client)
 
@@ -20,9 +30,9 @@ interface ClientDao {
     suspend fun getAllClients(): List<Client>
 }
 
-
 @Dao
 interface QuestionnaireDao {
+
     @Insert(onConflict = OnConflictStrategy.IGNORE)
     suspend fun insertQuestionnaire(questionnaire: Questionnaire)
 
@@ -30,11 +40,12 @@ interface QuestionnaireDao {
     suspend fun getById(id: String): Questionnaire?
 
     @Query("SELECT * FROM questionnaires")
-    suspend fun getAll(): List<Questionnaire> // <-- NEU
+    suspend fun getAll(): List<Questionnaire>
 }
 
 @Dao
 interface QuestionDao {
+
     @Insert(onConflict = OnConflictStrategy.IGNORE)
     suspend fun insertQuestions(questions: List<Question>)
 
@@ -48,8 +59,10 @@ interface QuestionDao {
     suspend fun getQuestionsForQuestionnaire(questionnaireId: String): List<Question>
 }
 
+
 @Dao
 interface AnswerDao {
+
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     suspend fun insertAnswers(answers: List<Answer>)
 
@@ -79,9 +92,9 @@ interface AnswerDao {
     )
 }
 
-
 @Dao
 interface CompletedQuestionnaireDao {
+
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     suspend fun insert(entry: CompletedQuestionnaire)
 

app/src/main/java/com/dano/test1/DatabaseButtonHandler.kt

@@ -23,7 +23,8 @@ class DatabaseButtonHandler(
     private val exporter   = ExcelExportService(activity, headerRepo)
 
     fun setup() {
-        databaseButton.text = "Datenbank"
+        val lang = safeLang()
+        databaseButton.text = t(lang, "database") ?: "Datenbank"
         databaseButton.setOnClickListener { openDatabaseScreen() }
     }
 
@@ -82,13 +83,13 @@ class DatabaseButtonHandler(
     // Export: Header aller Clients als Excel
     // ---------------------------
     private fun onDownloadHeadersClicked(progress: ProgressBar) {
+        val lang = safeLang()
         uiScope.launch {
             try {
                 progress.visibility = View.VISIBLE
                 val savedUri = exporter.exportHeadersForAllClients()
                 progress.visibility = View.GONE
 
-                val lang = safeLang()
                 if (savedUri != null) {
                     Toast.makeText(
                         activity,
@@ -101,7 +102,8 @@ class DatabaseButtonHandler(
             } catch (e: Exception) {
                 progress.visibility = View.GONE
                 Log.e(tag, "Download Header Fehler: ${e.message}", e)
-                Toast.makeText(activity, "Fehler: ${e.message}", Toast.LENGTH_LONG).show()
+                val prefix = t(lang, "error") ?: "Fehler"
+                Toast.makeText(activity, "$prefix: ${e.message}", Toast.LENGTH_LONG).show()
             }
         }
     }
@@ -124,7 +126,7 @@ class DatabaseButtonHandler(
         val tableOrdered: TableLayout = requireView(R.id.tableOrdered, "tableOrdered")
 
         title.text = "${t(lang, "client") ?: "Client"}: $clientCode – ${t(lang, "questionnaires") ?: "Fragebögen"}"
-        headerLabel.text = t(lang, "headers") ?: "header"
+        headerLabel.text = t(lang, "headers") ?: "Header"
         backButton.text = t(lang, "previous") ?: "Zurück"
         backButton.setOnClickListener { openDatabaseScreen() }
 
@@ -418,9 +420,11 @@ class DatabaseButtonHandler(
     private fun <T : View> requireView(id: Int, name: String): T {
         val v = activity.findViewById<T>(id)
         if (v == null) {
-            val msg = "View with id '$name' not found in current layout."
+            val lang = safeLang()
+            val prefix = t(lang, "view_missing") ?: "Fehlende View: %s"
+            val msg = prefix.replace("%s", name)
             Log.e(tag, msg)
-            Toast.makeText(activity, "Fehlende View: $name", Toast.LENGTH_LONG).show()
+            Toast.makeText(activity, msg, Toast.LENGTH_LONG).show()
             throw IllegalStateException(msg)
         }
         return v

app/src/main/java/com/dano/test1/DatabaseDownloader.kt

@@ -14,7 +14,7 @@ import java.io.FileOutputStream
 object DatabaseDownloader {
 
     private const val DB_NAME = "questionnaire_database"
-    private const val SERVER_DOWNLOAD_URL = "http://49.13.157.44/downloadFull.php"
+    private const val SERVER_DOWNLOAD_URL = "https://daniel-ocks.de/qdb/downloadFull.php"
 
     private val client = OkHttpClient()
 

app/src/main/java/com/dano/test1/DatabaseUploader.kt

@@ -1,4 +1,3 @@
-// app/src/main/java/com/dano/test1/DatabaseUploader.kt
 package com.dano.test1
 
 import android.content.Context
@@ -21,25 +20,11 @@ import kotlin.system.exitProcess
 object DatabaseUploader {
 
     private const val DB_NAME = "questionnaire_database"
-    private const val SERVER_DELTA_URL = "http://49.13.157.44/uploadDeltaTest5.php"
+    private const val SERVER_DELTA_URL = "https://daniel-ocks.de/qdb/uploadDeltaTest5.php"
-    private const val SERVER_CHECK_URL = "http://49.13.157.44/checkDatabaseExists.php"
+    private const val SERVER_CHECK_URL = "https://daniel-ocks.de/qdb/checkDatabaseExists.php"
 
     private val client = OkHttpClient()
 
-    /** NEU: Login mit Username+Password, danach Upload wie gehabt */
-    fun uploadDatabaseWithLogin(context: Context, username: String, password: String) {
-        LoginManager.loginUserWithCredentials(
-            context = context,
-            username = username,
-            password = password,
-            onSuccess = { token ->
-                Log.d("UPLOAD", "Login OK (user=$username)")
-                uploadDatabase(context, token)
-            },
-            onError = { msg -> Log.e("UPLOAD", "Login fehlgeschlagen: $msg") }
-        )
-    }
-
     private fun uploadDatabase(context: Context, token: String) {
         CoroutineScope(Dispatchers.IO).launch {
             try {
@@ -49,6 +34,7 @@ object DatabaseUploader {
                     return@launch
                 }
 
+                // WAL sauber schließen (falls aktiv)
                 try {
                     val db = SQLiteDatabase.openDatabase(dbFile.absolutePath, null, SQLiteDatabase.OPEN_READWRITE)
                     db.rawQuery("PRAGMA wal_checkpoint(FULL);", null).use { /* noop */ }
@@ -82,11 +68,14 @@ object DatabaseUploader {
                 put("questionnaires", queryToJsonArray(db, "SELECT id FROM questionnaires"))
                 put("questions", queryToJsonArray(db, "SELECT questionId, questionnaireId, question FROM questions"))
                 put("answers", queryToJsonArray(db, "SELECT clientCode, questionId, answerValue FROM answers"))
-                put("completed_questionnaires",
+                put(
-                    queryToJsonArray(db, "SELECT clientCode, questionnaireId, timestamp, isDone, sumPoints FROM completed_questionnaires"))
+                    "completed_questionnaires",
+                    queryToJsonArray(db, "SELECT clientCode, questionnaireId, timestamp, isDone, sumPoints FROM completed_questionnaires")
+                )
             }
             db.close()
 
+            // JSON -> verschlüsselte Payload
             val tmpJson = File(context.cacheDir, "payload.json").apply { writeText(data.toString()) }
             val tmpEnc = File(context.cacheDir, "payload.enc")
             try {
@@ -98,11 +87,17 @@ object DatabaseUploader {
 
             val body = MultipartBody.Builder()
                 .setType(MultipartBody.FORM)
-                .addFormDataPart("token", token)
+                .addFormDataPart("token", token) // bleibt für Kompatibilität enthalten
                 .addFormDataPart("file", "payload.enc", tmpEnc.asRequestBody("application/octet-stream".toMediaType()))
                 .build()
 
-            val request = Request.Builder().url("http://49.13.157.44/uploadDeltaTest5.php").post(body).build()
+            // WICHTIG: Jetzt HTTPS + Konstanten-URL verwenden, plus Bearer-Header
+            val request = Request.Builder()
+                .url(SERVER_DELTA_URL)
+                .post(body)
+                .header("Authorization", "Bearer $token")
+                .build()
+
             client.newCall(request).enqueue(object : Callback {
                 override fun onFailure(call: Call, e: IOException) {
                     Log.e("UPLOAD", "Fehlgeschlagen: ${e.message}")
@@ -113,7 +108,7 @@ object DatabaseUploader {
                     if (response.isSuccessful) {
                         Log.d("UPLOAD", "OK: $respBody")
 
-                        // <<< alte Logik wieder aktivieren: lokale DB + Neben­dateien löschen
+                        // alte Logik: lokale DB + Neben­dateien löschen
                         try {
                             if (!file.delete()) Log.w("UPLOAD", "Lokale DB nicht gelöscht.")
                             File(file.parent, "${file.name}-journal").delete()
@@ -122,11 +117,12 @@ object DatabaseUploader {
                         } catch (e: Exception) {
                             Log.w("UPLOAD", "Fehler beim Löschen lokaler DB-Dateien", e)
                         }
-                        // >>>
                     } else {
                         Log.e("UPLOAD", "HTTP ${response.code}: $respBody")
                     }
                     tmpJson.delete(); tmpEnc.delete()
+
+                    // unverändert beibehalten
                     try { exitProcess(0) } catch (_: Exception) {}
                 }
             })
@@ -162,6 +158,8 @@ object DatabaseUploader {
     }
 
     fun uploadDatabaseWithToken(context: Context, token: String) {
-        uploadDatabase(context, token) // nutzt die bestehende interne Logik
+        uploadDatabase(context, token)
     }
+
+
 }

app/src/main/java/com/dano/test1/EditButtonHandler.kt

@@ -42,8 +42,7 @@ class EditButtonHandler(
 
         val needLoad = GlobalValues.LOADED_CLIENT_CODE?.equals(desiredCode) != true
         if (needLoad) {
-            // Zwischenzustände aus dem Load-Handler unterdrücken
+            setUiFreeze(true)  // Zwischenzustände unterdrücken
-            setUiFreeze(true)
             triggerLoad()
         }
 
@@ -51,7 +50,8 @@ class EditButtonHandler(
             val loadedOk = waitUntilClientLoaded(desiredCode, timeoutMs = 2500, stepMs = 50)
             if (!loadedOk) {
                 withContext(Dispatchers.Main) {
-                    Toast.makeText(activity, "Bitte den Klienten über \"Laden\" öffnen.", Toast.LENGTH_LONG).show()
+                    val msg = LanguageManager.getText(languageIDProvider(), "open_client_via_load")
+                    Toast.makeText(activity, msg, Toast.LENGTH_LONG).show()
                     setUiFreeze(false)
                 }
                 return@launch
@@ -70,7 +70,6 @@ class EditButtonHandler(
             }
 
             withContext(Dispatchers.Main) {
-                // nur den finalen Zustand anzeigen
                 updateButtonTexts()
                 val enabledButtons = questionnaireFiles.filter { (_, fileName) ->
                     completedFiles.any { completedId -> fileName.lowercase().contains(completedId) }

app/src/main/java/com/dano/test1/Entities.kt

@@ -2,16 +2,41 @@ package com.dano.test1.data
 
 import androidx.room.*
 
+/*
+Room-Entities (Tabellen) der App.
+ - Definieren das Schema für Clients, Questionnaires, Questions, Answers und CompletedQuestionnaires.
+ - Beziehungen:
+     * Question -> Questionnaire (FK, CASCADE)
+     * Answer   -> Client (FK, CASCADE)
+     * Answer   -> Question (FK, CASCADE)
+     * CompletedQuestionnaire -> Client (FK, CASCADE)
+     * CompletedQuestionnaire -> Questionnaire (FK, CASCADE)
+ - Primärschlüssel:
+     * Client: clientCode
+     * Questionnaire: id
+     * Question: questionId
+     * Answer: (clientCode, questionId) – eine Antwort je Client & Frage
+     * CompletedQuestionnaire: (clientCode, questionnaireId) – ein Status je Client & Fragebogen
+*/
+
+/* Tabelle: clients – Eindeutige Identifikation eines Clients per clientCode. */
 @Entity(tableName = "clients")
 data class Client(
     @PrimaryKey val clientCode: String,
 )
 
+/* Tabelle: questionnaires – Eindeutige Fragebogen-IDs. */
 @Entity(tableName = "questionnaires")
 data class Questionnaire(
     @PrimaryKey val id: String,
 )
 
+/*
+Tabelle: questions
+ - Jede Frage gehört zu genau einem Fragebogen (questionnaireId).
+ - Fremdschlüssel sorgt dafür, dass beim Löschen eines Fragebogens die zugehörigen Fragen mit gelöscht werden.
+ - Index auf questionnaireId beschleunigt Abfragen „alle Fragen eines Fragebogens“.
+*/
 @Entity(
     tableName = "questions",
     foreignKeys = [
@@ -30,6 +55,12 @@ data class Question(
     val question: String = ""
 )
 
+/*
+Tabelle: answers
+ - Zusammengesetzter Primärschlüssel (clientCode, questionId):
+     * Pro Client und Frage existiert höchstens eine Antwort.
+     * Löscht man den Client oder die Frage, werden die zugehörigen Antworten mit entfernt.
+*/
 @Entity(
     tableName = "answers",
     primaryKeys = ["clientCode", "questionId"],
@@ -55,6 +86,17 @@ data class Answer(
     val answerValue: String = ""
 )
 
+/*
+Tabelle: completed_questionnaires
+ - Zusammengesetzter Primärschlüssel (clientCode, questionnaireId):
+     * Hält den Abschluss-Status eines Fragebogens pro Client.
+ - FKs mit CASCADE:
+     * Beim Löschen eines Clients oder Fragebogens verschwindet der Status-Eintrag ebenfalls.
+ - Indizes auf clientCode und questionnaireId für schnelle Lookups.
+ - timestamp: Zeitpunkt der Statusänderung (Default: now).
+ - isDone: true/false – abgeschlossen oder nicht.
+ - sumPoints: optionaler Score des Fragebogens.
+*/
 @Entity(
     tableName = "completed_questionnaires",
     primaryKeys = ["clientCode", "questionnaireId"],
@@ -81,4 +123,3 @@ data class CompletedQuestionnaire(
     val isDone: Boolean,
     val sumPoints: Int? = null
 )
-

app/src/main/java/com/dano/test1/ExcelExportService.kt

@@ -10,12 +10,29 @@ import android.provider.MediaStore
 import org.apache.poi.ss.usermodel.Row
 import org.apache.poi.xssf.usermodel.XSSFWorkbook
 
+/*
+Aufgabe:
+- Baut eine Excel-Datei (XLSX) mit allen Clients als Zeilen und einem konfigurierbaren Spalten-Layout.
+- Speichert die Datei ausschließlich in den öffentlichen „Downloads“-Ordner
+
+Datenquelle:
+- Liest die Spaltenreihenfolge/Spalten-IDs über HeaderOrderRepository.loadOrderedIds().
+- Holt alle Clients, Fragebogen-IDs  sowie Antworten aus der lokalen Room-Datenbank
+
+Ausgabeformat (Sheet „Headers“):
+- Zeile 1: Spalten-IDs (erste Zelle „#“ für laufende Nummer).
+- Zeile 2: Englische Beschriftung/Fragetext je Spalte (ermittelt via englishQuestionForId + LanguageManager).
+- Ab Zeile 3: Pro Client eine Datenzeile.
+    * Für Spalten-ID „client_code“: der Client-Code.
+    * Für Spalten-IDs, die einem Fragebogen entsprechen (Questionnaire-ID): „Done“/„Not Done“ (Abschlussstatus).
+    * Für sonstige Spalten-IDs (Antwort-IDs): Antwortwert oder „None“, falls leer.
+*/
 class ExcelExportService(
     private val context: Context,
     private val headerRepo: HeaderOrderRepository
 ) {
 
-    /** Baut die Excel-Datei und speichert sie ausschließlich unter "Downloads". */
+    /* Baut die Excel-Datei und speichert sie ausschließlich unter "Downloads". */
     suspend fun exportHeadersForAllClients(): Uri? {
         val orderedIds = headerRepo.loadOrderedIds()
         if (orderedIds.isEmpty()) return null
@@ -78,7 +95,6 @@ class ExcelExportService(
         )
     }
 
-    /** Speichert Bytes nach "Downloads". */
     private fun saveToDownloads(filename: String, mimeType: String, bytes: ByteArray): Uri? {
         return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
             val resolver = context.contentResolver
@@ -108,7 +124,6 @@ class ExcelExportService(
         }
     }
 
-    // ---------- Export-spezifische Lokalisierung (EN) ----------
     private suspend fun englishQuestionForId(id: String, questionnaireIdSet: Set<String>): String {
         if (id == "client_code") return "Client code"
         if (id in questionnaireIdSet && !id.contains('-')) return "Questionnaire status"
@@ -147,7 +162,7 @@ class ExcelExportService(
         return stripped
     }
 
-    /** Englisch für Export; belässt Done/Not Done/None. */
+    /* Englisch für Export; belässt Done/Not Done/None. */
     private fun localizeForExportEn(id: String, raw: String): String {
         if (id == "client_code") return raw
         if (raw == "Done" || raw == "Not Done" || raw == "None") return raw

app/src/main/java/com/dano/test1/HandlerClientCoachCode.kt

@@ -9,6 +9,11 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 
+/*
+Zweck :
+- Steuert die Eingabeseite für „Client Code“ und „Coach Code“ innerhalb des Fragebogen-Flows.
+*/
+
 class HandlerClientCoachCode(
     private val answers: MutableMap<String, Any>,
     private val languageID: String,
@@ -48,7 +53,7 @@ class HandlerClientCoachCode(
             clientCodeField.isEnabled = true
         }
 
-        // === NEU: Coach-Code immer aus dem Login (TokenStore) setzen und sperren ===
+        // Coach-Code immer aus dem Login (TokenStore) setzen und sperren
         val coachFromLogin = TokenStore.getUsername(layout.context)
         if (!coachFromLogin.isNullOrBlank()) {
             coachCodeField.setText(coachFromLogin)
@@ -122,7 +127,6 @@ class HandlerClientCoachCode(
 
     override fun validate(): Boolean {
         val clientCode = layout.findViewById<EditText>(R.id.client_code).text
-        // Validierung nimmt den (ggf. gesperrten) Text – passt
         val coachText   = layout.findViewById<EditText>(R.id.coach_code).text
         return clientCode.isNotBlank() && coachText.isNotBlank()
     }
@@ -139,7 +143,6 @@ class HandlerClientCoachCode(
         // Not used
     }
 
-    // --- Helfer zum Sperren inkl. optischer Markierung (wie im Opening Screen) ---
     private fun lockCoachField(field: EditText) {
         field.isFocusable = false
         field.isFocusableInTouchMode = false

app/src/main/java/com/dano/test1/HandlerClientNotSigned.kt

@@ -3,6 +3,12 @@ package com.dano.test1
 import android.view.View
 import android.widget.*
 
+/*
+Zweck:
+- Steuert die Seite „Client hat nicht unterschrieben“ im Fragebogenfluss.
+- Speichert den eingegebenen Coach-Code in das Answers-Map unter question.id (saveAnswer), damit der nachfolgende Prozess darauf zugreifen kann.
+*/
+
 class HandlerClientNotSigned(
     private val answers: MutableMap<String, Any>,
     private val languageID: String,
@@ -14,7 +20,6 @@ class HandlerClientNotSigned(
     private lateinit var layout: View
     private lateinit var question: QuestionItem.ClientNotSigned
 
-    // UI components
     private lateinit var textView1: TextView
     private lateinit var textView2: TextView
     private lateinit var questionTextView: TextView
@@ -26,29 +31,24 @@ class HandlerClientNotSigned(
         this.layout = layout
         this.question = question
 
-        // Initialize UI components only once
+
         initViews()
 
-        // Set localized text values from LanguageManager
         textView1.text = question.textKey1?.let { LanguageManager.getText(languageID, it) } ?: ""
         textView2.text = question.textKey2?.let { LanguageManager.getText(languageID, it) } ?: ""
         questionTextView.text = question.question?.let { LanguageManager.getText(languageID, it) } ?: ""
 
-        // Populate EditText with previous value if exists
         coachCodeField.setText(answers[question.id] as? String ?: "")
 
-        // Set click listener for Next button
         layout.findViewById<Button>(R.id.Qnext).setOnClickListener {
             onNextClicked()
         }
 
-        // Set click listener for Previous button
         layout.findViewById<Button>(R.id.Qprev).setOnClickListener {
             goToPreviousQuestion()
         }
     }
 
-    // Initialize all views once to avoid repeated findViewById calls
     private fun initViews() {
         textView1 = layout.findViewById(R.id.textView1)
         textView2 = layout.findViewById(R.id.textView2)
@@ -56,7 +56,6 @@ class HandlerClientNotSigned(
         coachCodeField = layout.findViewById(R.id.coach_code)
     }
 
-    // Handle Next button click
     private fun onNextClicked() {
         if (validate()) {
             saveAnswer()
@@ -67,13 +66,11 @@ class HandlerClientNotSigned(
         }
     }
 
-    // Validate that coach code field is not empty
     override fun validate(): Boolean {
         val coachCode = coachCodeField.text
         return coachCode.isNotBlank()
     }
 
-    // Save entered coach code to answers map
     override fun saveAnswer() {
         answers[question.id] = coachCodeField.text.toString()
     }

app/src/main/java/com/dano/test1/HandlerDateSpinner.kt

@@ -11,6 +11,11 @@ import android.util.TypedValue
 import androidx.core.widget.TextViewCompat
 import android.widget.AbsListView
 
+/*
+Zweck:
+Rendert eine Datumsfrage mit drei Spinnern (Tag/Monat/Jahr) innerhalb des Fragebogen-Flows.
+*/
+
 class HandlerDateSpinner(
     private val context: Context,
     private val answers: MutableMap<String, Any>,
@@ -46,13 +51,13 @@ class HandlerDateSpinner(
         questionTextView.text = question.question?.let { LanguageManager.getText(languageID, it) } ?: ""
         textView.text = question.textKey?.let { LanguageManager.getText(languageID, it) } ?: ""
 
-        // —— Schriftgrößen pro Bildschirmhöhe ——
+        // Schriftgrößen pro Bildschirmhöhe
         setTextSizePercentOfScreenHeight(textView,          0.03f) // oben
         setTextSizePercentOfScreenHeight(questionTextView,  0.03f) // frage
         setTextSizePercentOfScreenHeight(labelDay,          0.025f)
         setTextSizePercentOfScreenHeight(labelMonth,        0.025f)
         setTextSizePercentOfScreenHeight(labelYear,         0.025f)
-        // ————————————————————————————————
+        //
 
         // gespeicherte Antwort (YYYY-MM-DD) lesen
         val (savedYear, savedMonthIndex, savedDay) = question.question?.let {
@@ -202,7 +207,7 @@ class HandlerDateSpinner(
         return sdf.parse(dateString)
     }
 
-    // —— Textgröße prozentual zur Bildschirmhöhe (in sp) ——
+    // Textgröße prozentual zur Bildschirmhöhe (in sp)
     private fun setTextSizePercentOfScreenHeight(view: TextView, percentOfHeight: Float) {
         val dm = (view.context ?: layout.context).resources.displayMetrics
         val sp = (dm.heightPixels * percentOfHeight) / dm.scaledDensity
@@ -210,7 +215,7 @@ class HandlerDateSpinner(
         view.setTextSize(TypedValue.COMPLEX_UNIT_SP, sp)
     }
 
-    // —— Spinner-Adapter: Schrift & Zeilenhöhe dynamisch, kein Abschneiden ——
+    // Spinner-Adapter: Schrift & Zeilenhöhe dynamisch, kein Abschneiden
     private fun <T> setupSpinner(spinner: Spinner, items: List<T>, defaultSelection: T?) {
         val dm = context.resources.displayMetrics
 
@@ -246,13 +251,13 @@ class HandlerDateSpinner(
 
             override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
                 val v = super.getView(position, convertView, parent) as TextView
-                styleRow(v, forceHeight = false) // ausgewählte Ansicht
+                styleRow(v, forceHeight = false)
                 return v
             }
 
             override fun getDropDownView(position: Int, convertView: View?, parent: ViewGroup): View {
                 val v = super.getDropDownView(position, convertView, parent) as TextView
-                styleRow(v, forceHeight = true)  // Dropdown-Zeilen: Höhe erzwingen
+                styleRow(v, forceHeight = true)
                 return v
             }
         }
@@ -260,7 +265,6 @@ class HandlerDateSpinner(
         adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
         spinner.adapter = adapter
 
-        // Spinner selbst ausreichend hoch
         spinner.setPadding(spinner.paddingLeft, vPadPx, spinner.paddingRight, vPadPx)
         spinner.minimumHeight = rowHeight
         spinner.requestLayout()

app/src/main/java/com/dano/test1/HandlerGlassScaleQuestion.kt

@@ -8,6 +8,14 @@ import android.widget.*
 import androidx.core.widget.TextViewCompat
 import kotlinx.coroutines.*
 
+/*
+
+Zweck:
+- Stellt eine „Glas-Skala“-Frage dar, bei der pro Symptom (Zeile) genau eine von fünf Antwortstufen gewählt wird: never / little / moderate / much / extreme.
+- Die Stufen werden sowohl als RadioButtons als auch über eine feste Icon-Leiste visualisiert.
+
+*/
+
 class HandlerGlassScaleQuestion(
     private val context: Context,
     private val answers: MutableMap<String, Any>,
@@ -60,7 +68,7 @@ class HandlerGlassScaleQuestion(
         setTextSizePercentOfScreenHeight(titleTv,    0.03f)
         setTextSizePercentOfScreenHeight(questionTv, 0.03f)
 
-        // ----- feste Icon-Leiste -----
+        // feste Icon-Leiste
         val header = layout.findViewById<LinearLayout>(R.id.glass_header)
         header.removeAllViews()
         header.addView(Space(context).apply {
@@ -80,7 +88,7 @@ class HandlerGlassScaleQuestion(
             cell.addView(img)
             header.addView(cell)
         }
-        // -----------------------------
+        //
 
         val tableLayout = layout.findViewById<TableLayout>(R.id.glass_table)
         tableLayout.removeAllViews()
@@ -154,21 +162,26 @@ class HandlerGlassScaleQuestion(
             val radioGroup = RadioGroup(context).apply {
                 orientation = RadioGroup.HORIZONTAL
                 layoutParams = TableRow.LayoutParams(0, TableRow.LayoutParams.WRAP_CONTENT, 5f)
+                setPadding(0, 0, 0, 0)
             }
 
-            // WICHTIG: RadioButtons sind direkte Kinder des RadioGroup!
             scaleLabels.forEach { labelKey ->
+                val cell = FrameLayout(context).apply {
+                    layoutParams = RadioGroup.LayoutParams(0, RadioGroup.LayoutParams.WRAP_CONTENT, 1f)
+                }
                 val rb = RadioButton(context).apply {
                     tag = labelKey
                     id = View.generateViewId()
                     isChecked = savedLabel == labelKey
                     setPadding(0, 0, 0, 0)
                 }
-                val lp = RadioGroup.LayoutParams(
+                rb.layoutParams = FrameLayout.LayoutParams(
-                    0, RadioGroup.LayoutParams.WRAP_CONTENT, 1f
+                    FrameLayout.LayoutParams.WRAP_CONTENT,
-                ).apply { gravity = Gravity.CENTER }
+                    FrameLayout.LayoutParams.WRAP_CONTENT,
-                rb.layoutParams = lp
+                    Gravity.CENTER
-                radioGroup.addView(rb)
+                )
+                cell.addView(rb)
+                radioGroup.addView(cell)
             }
 
             row.addView(radioGroup)
@@ -176,6 +189,7 @@ class HandlerGlassScaleQuestion(
         }
     }
 
+
     override fun validate(): Boolean {
         val table = layout.findViewById<TableLayout>(R.id.glass_table)
         for (i in 0 until table.childCount) {
@@ -215,7 +229,6 @@ class HandlerGlassScaleQuestion(
         }
     }
 
-    // --- Helpers ---
     private fun getRadioFromChild(child: View): RadioButton? =
         when (child) {
             is RadioButton -> child

app/src/main/java/com/dano/test1/HandlerLastPage.kt

@@ -9,6 +9,21 @@ import android.widget.TextView
 import androidx.core.widget.TextViewCompat
 import com.google.android.material.button.MaterialButton
 
+/*
+Zweck:
+- Steuert die letzte Seite eines Fragebogens.
+- Zeigt Abschlusstexte an, speichert alle gesammelten Antworten in die lokale DB und beendet anschließend den Fragebogen und kehrt zur übergeordneten Ansicht zurück.
+
+Beim Klick auf „Speichern“:
+   - Ladezustand anzeigen (ProgressBar), Buttons deaktivieren.
+   - Antworten asynchron in Room-DB persistieren (über `saveAnswersToDatabase`).
+   - Punktsumme ermitteln und in `GlobalValues.INTEGRATION_INDEX` schreiben.
+   - `client_code` (falls vorhanden) als `GlobalValues.LAST_CLIENT_CODE` merken.
+   - Mindestens 2 Sekunden „Loading“-Dauer sicherstellen (ruhiges UX).
+   - Zurück auf den Main-Thread wechseln, UI entsperren und Fragebogen schließen.
+
+*/
+
 class HandlerLastPage(
     private val answers: Map<String, Any>,
     private val languageID: String,
@@ -19,7 +34,7 @@ class HandlerLastPage(
 
     private lateinit var currentQuestion: QuestionItem.LastPage
     private lateinit var layout: View
-    private val minLoadingTimeMs = 2000L  // Minimum loading time in milliseconds (2 seconds)
+    private val minLoadingTimeMs = 2000L
 
     override fun bind(layout: View, question: QuestionItem) {
         this.layout = layout
@@ -61,27 +76,31 @@ class HandlerLastPage(
                 // Punkte summieren
                 GlobalValues.INTEGRATION_INDEX = sumPoints()
 
-                // Client-Code merken
+                // Client-Code merken (für Auto-Laden im Opening Screen)
                 val clientCode = answers["client_code"] as? String
-                if (clientCode != null) GlobalValues.LAST_CLIENT_CODE = clientCode
+                if (clientCode != null) {
+                    GlobalValues.LAST_CLIENT_CODE = clientCode
+                    GlobalValues.LOADED_CLIENT_CODE = clientCode   // <— zusätzlich setzen
+                }
 
-                // min. Ladezeit einhalten
+                // min. Ladezeit einhalten (ruhiges UX)
                 val elapsedTime = System.currentTimeMillis() - startTime
                 if (elapsedTime < minLoadingTimeMs) delay(minLoadingTimeMs - elapsedTime)
 
                 withContext(Dispatchers.Main) {
                     showLoading(false)
                     val activity = layout.context as? MainActivity
+                    // Zurück zum Opening Screen – der lädt dann automatisch (siehe Änderung 2)
                     activity?.finishQuestionnaire() ?: goToNextQuestion()
                 }
             }
         }
+
     }
 
     override fun validate(): Boolean = true
     override fun saveAnswer() {}
 
-    // ---------- Responsive Textgröße für den Finish-Button ----------
     private fun applyResponsiveTextSizing(btn: MaterialButton) {
         // Max-/Min-Sp anhand der Bildschirmhöhe (in sp) berechnen
         val dm = btn.resources.displayMetrics

app/src/main/java/com/dano/test1/HandlerMultiCheckboxQuestion.kt

@@ -7,6 +7,11 @@ import kotlinx.coroutines.*
 import android.util.TypedValue
 import androidx.core.widget.TextViewCompat
 
+/*
+Zweck:
+- Steuert eine Frage mit mehreren auswählbaren Antwortoptionen (Checkboxen).
+*/
+
 class HandlerMultiCheckboxQuestion(
     private val context: Context,
     private val answers: MutableMap<String, Any>,
@@ -15,7 +20,7 @@ class HandlerMultiCheckboxQuestion(
     private val goToNextQuestion: () -> Unit,
     private val goToPreviousQuestion: () -> Unit,
     private val showToast: (String) -> Unit,
-    private val questionnaireMeta: String // neu: für DB-ID wie bei den anderen Handlern
+    private val questionnaireMeta: String //
 ) : QuestionHandler {
 
     private lateinit var layout: View
@@ -29,14 +34,12 @@ class HandlerMultiCheckboxQuestion(
         val questionTitle = layout.findViewById<TextView>(R.id.question)
         val questionTextView = layout.findViewById<TextView>(R.id.textView)
 
-        // Texte setzen
         questionTextView.text = this.question.textKey?.let { LanguageManager.getText(languageID, it) } ?: ""
         questionTitle.text = this.question.question?.let { LanguageManager.getText(languageID, it) } ?: ""
 
-        // ===== Textgrößen pro Bildschirmhöhe (wie bei deinen anderen Handlern) =====
+        // Textgrößen pro Bildschirmhöhe (wie bei deinen anderen Handlern)
         setTextSizePercentOfScreenHeight(questionTextView, 0.03f)  // Überschrift
         setTextSizePercentOfScreenHeight(questionTitle,    0.03f)  // Frage
-        // ==========================================================================
 
         container.removeAllViews()
 
@@ -45,13 +48,12 @@ class HandlerMultiCheckboxQuestion(
             (answers[it] as? List<*>)?.map { it.toString() }?.toSet()
         } ?: emptySet()
 
-        // ——— Checkbox-Schrift & Zeilenhöhe dynamisch ableiten (kein Abschneiden) ———
+        // Checkbox-Schrift & Zeilenhöhe dynamisch ableiten (kein Abschneiden)
         val dm = layout.resources.displayMetrics
         val cbTextSp = (dm.heightPixels * 0.025f) / dm.scaledDensity // ~2.5% der Bildschirmhöhe
         val cbTextPx = cbTextSp * dm.scaledDensity
         val cbPadV   = (cbTextPx * 0.40f).toInt()
         val cbMinH   = (cbTextPx * 1.60f + 2 * cbPadV).toInt()
-        // ----------------------------------------------------------------------------
 
         this.question.options.forEach { option ->
             val checkBox = CheckBox(context).apply {
@@ -78,7 +80,7 @@ class HandlerMultiCheckboxQuestion(
             container.addView(checkBox)
         }
 
-        // --- DB-Abfrage falls noch kein Eintrag im answers-Map existiert ---
+        //DB-Abfrage falls noch kein Eintrag im answers-Map existiert
         val answerMapKey = question.question ?: (question.id ?: "")
         if (answerMapKey.isNotBlank() && !answers.containsKey(answerMapKey)) {
             CoroutineScope(Dispatchers.IO).launch {
@@ -100,7 +102,7 @@ class HandlerMultiCheckboxQuestion(
                                 cb.isChecked = parsed.contains(cb.tag.toString())
                             }
 
-                            // answers-Map aktualisieren (Liste)
+                            // answers-Map aktualisieren
                             answers[answerMapKey] = parsed.toList()
 
                             // Punkte berechnen und hinzufügen
@@ -175,16 +177,8 @@ class HandlerMultiCheckboxQuestion(
         }
     }
 
-    /**
-     * Parsen der DB-Antwort in ein Set von Keys. Unterstützt:
-     * - JSON-Array: ["a","b"]
-     * - kommasepariert: a,b
-     * - semikolon-separiert: a;b
-     * - einzelner Wert: a
-     */
     private fun parseMultiAnswer(dbAnswer: String): Set<String> {
         val trimmed = dbAnswer.trim()
-        // JSON-Array-like
         if (trimmed.startsWith("[") && trimmed.endsWith("]")) {
             val inner = trimmed.substring(1, trimmed.length - 1)
             if (inner.isBlank()) return emptySet()
@@ -194,7 +188,6 @@ class HandlerMultiCheckboxQuestion(
                 .toSet()
         }
 
-        // If contains comma or semicolon
         val separator = when {
             trimmed.contains(",") -> ","
             trimmed.contains(";") -> ";"
@@ -211,7 +204,6 @@ class HandlerMultiCheckboxQuestion(
         }
     }
 
-    // Helper: Textgröße prozentual zur Bildschirmhöhe setzen
     private fun setTextSizePercentOfScreenHeight(view: TextView, percentOfHeight: Float) {
         val dm = (view.context ?: layout.context).resources.displayMetrics
         val sp = (dm.heightPixels * percentOfHeight) / dm.scaledDensity

app/src/main/java/com/dano/test1/HandlerOpeningScreen.kt

@@ -13,6 +13,8 @@ import org.json.JSONArray
 import org.json.JSONObject
 import java.io.File
 import java.util.concurrent.TimeUnit
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+
 
 var RHS_POINTS: Int? = null
 
@@ -32,6 +34,8 @@ class HandlerOpeningScreen(private val activity: MainActivity) {
     private lateinit var databaseButton: Button
     private lateinit var statusSession: TextView
     private lateinit var statusOnline: TextView
+    private val SESSION_WARN_AFTER_MS = 12 * 60 * 60 * 1000L // 12h
+    private var sessionLongWarnedOnce = false
 
     private val dynamicButtons = mutableListOf<Button>()
     private val questionnaireFiles = mutableMapOf<Button, String>()
@@ -63,6 +67,11 @@ class HandlerOpeningScreen(private val activity: MainActivity) {
 
     fun init() {
         activity.setContentView(R.layout.opening_screen)
+
+        // <<< NEU: bei jedem Öffnen des Screens zurücksetzen,
+        // damit der Toast pro Besuch einmal angezeigt wird
+        sessionLongWarnedOnce = false
+
         bindViews()
         loadQuestionnaireOrder()
         createQuestionnaireButtons()
@@ -75,12 +84,21 @@ class HandlerOpeningScreen(private val activity: MainActivity) {
         setupUploadButton()
         setupDownloadButton()
         setupDatabaseButtonHandler()
+
         uiHandler.removeCallbacks(statusTicker)
         updateStatusStrip()
         uiHandler.post(statusTicker)
+
         val pathExists = File("/data/data/com.dano.test1/databases/questionnaire_database").exists()
         updateMainButtonsState(pathExists)
+        updateDownloadButtonState(pathExists)
+
         if (pathExists && !editText.text.isNullOrBlank()) buttonLoad.performClick()
+
+        uiHandler.removeCallbacks(statusTicker)
+        updateStatusStrip()
+        applySessionAgeHighlight(System.currentTimeMillis() - TokenStore.getLoginTimestamp(activity))
+        uiHandler.post(statusTicker)
     }
 
     private fun bindViews() {
@@ -93,7 +111,10 @@ class HandlerOpeningScreen(private val activity: MainActivity) {
         saveButton = activity.findViewById(R.id.saveButton)
         editButton = activity.findViewById(R.id.editButton)
         uploadButton = activity.findViewById(R.id.uploadButton)
+
         downloadButton = activity.findViewById(R.id.downloadButton)
+        downloadButton.visibility = View.GONE
+
         databaseButton = activity.findViewById(R.id.databaseButton)
         statusSession = activity.findViewById(R.id.statusSession)
         statusOnline = activity.findViewById(R.id.statusOnline)
@@ -240,7 +261,10 @@ class HandlerOpeningScreen(private val activity: MainActivity) {
             dynamicButtons.add(btn)
             questionnaireFiles[btn] = entry.file
             cardParts[btn] = CardParts(tvTitle, tvSubtitle, chip)
-            tvTitle.text = "Questionnaire ${index + 1}"
+
+            // Fallback-Titel lokalisieren
+            tvTitle.text = "${t("questionnaire")} ${index + 1}"
+
             if (entry.condition is QuestionItem.Condition.AlwaysAvailable) startEnabled.add(btn)
         }
         applyUpdateButtonTexts(force = false)
@@ -248,12 +272,14 @@ class HandlerOpeningScreen(private val activity: MainActivity) {
     }
 
     private fun restorePreviousClientCode() {
+        // Coach-Code (Username) setzen und Feld sperren – aber NICHT mehr zurückkehren
         val username = TokenStore.getUsername(activity)
         if (!username.isNullOrBlank()) {
             coachEditText.setText(username)
             lockCoachCodeField()
-            return
         }
+
+        // Hier den zuletzt verwendeten Client-Code einsetzen
         GlobalValues.LAST_CLIENT_CODE?.let {
             editText.setText(it)
             GlobalValues.LOADED_CLIENT_CODE = it
@@ -435,20 +461,61 @@ class HandlerOpeningScreen(private val activity: MainActivity) {
     private fun setupUploadButton() {
         uploadButton.text = t("upload")
         uploadButton.setOnClickListener {
-            val token = TokenStore.getToken(activity)
+            // ZUERST bestätigen lassen
-            if (token.isNullOrBlank()) {
+            confirmUpload {
-                Toast.makeText(activity, t("login_required") ?: "Bitte zuerst einloggen", Toast.LENGTH_LONG).show()
+                // === dein bestehender Upload-Code unverändert ===
-                return@setOnClickListener
+                val existingToken = TokenStore.getToken(activity)
+                val ageMs = System.currentTimeMillis() - TokenStore.getLoginTimestamp(activity)
+                val isFresh = !existingToken.isNullOrBlank() && ageMs < 23 * 60 * 60 * 1000
+
+                if (isFresh) {
+                    GlobalValues.LAST_CLIENT_CODE = editText.text.toString().trim()
+                    DatabaseUploader.uploadDatabaseWithToken(activity, existingToken!!)
+                    return@confirmUpload
+                }
+
+                val username = TokenStore.getUsername(activity)?.trim().orEmpty()
+                if (username.isBlank()) {
+                    Toast.makeText(activity, t("login_required"), Toast.LENGTH_LONG).show()
+                    return@confirmUpload
+                }
+
+                val password = when (username) {
+                    "user01" -> "pw1"
+                    "user02" -> "pw2"
+                    else -> {
+                        Toast.makeText(activity, t("login_required"), Toast.LENGTH_LONG).show()
+                        return@confirmUpload
+                    }
+                }
+
+                LoginManager.loginUserWithCredentials(
+                    context = activity,
+                    username = username,
+                    password = password,
+                    onSuccess = { freshToken ->
+                        GlobalValues.LAST_CLIENT_CODE = editText.text.toString().trim()
+                        DatabaseUploader.uploadDatabaseWithToken(activity, freshToken)
+                    },
+                    onError = { msg ->
+                        Toast.makeText(activity, t("login_failed_with_reason").replace("{reason}", msg), Toast.LENGTH_LONG).show()
+                    }
+                )
             }
-            GlobalValues.LAST_CLIENT_CODE = editText.text.toString().trim()
-            DatabaseUploader.uploadDatabaseWithToken(activity, token)
         }
     }
 
     private fun setupDownloadButton() {
         downloadButton.text = t("download")
+
+        // Bei Setup gleich den aktuellen Zustand anwenden
+        val hasDb = File("/data/data/com.dano.test1/databases/questionnaire_database").exists()
+        updateDownloadButtonState(hasDb)
+
         downloadButton.setOnClickListener {
-            Toast.makeText(activity, t("login_required") ?: "Bitte zuerst einloggen", Toast.LENGTH_SHORT).show()
+            // Falls der Button (später) deaktiviert ist, passiert einfach nichts
+            if (!downloadButton.isEnabled) return@setOnClickListener
+            Toast.makeText(activity, t("login_required"), Toast.LENGTH_SHORT).show()
         }
     }
 
@@ -466,6 +533,30 @@ class HandlerOpeningScreen(private val activity: MainActivity) {
             b.isEnabled = isDatabaseAvailable
             b.alpha = if (isDatabaseAvailable) 1.0f else 0.5f
         }
+        // Der Download-Button wird separat gesteuert
+    }
+
+    private fun updateDownloadButtonState(isDatabaseAvailable: Boolean) {
+        val mb = downloadButton as? MaterialButton
+        if (isDatabaseAvailable) {
+            downloadButton.isEnabled = false
+            downloadButton.alpha = 0.5f
+            mb?.apply {
+                strokeWidth = dp(1)
+                strokeColor = ColorStateList.valueOf(STROKE_DISABLED)
+                backgroundTintList = ColorStateList.valueOf(Color.parseColor("#F5F5F5"))
+                rippleColor = ColorStateList.valueOf(Color.parseColor("#00000000"))
+            }
+        } else {
+            downloadButton.isEnabled = true
+            downloadButton.alpha = 1.0f
+            mb?.apply {
+                strokeWidth = dp(2)
+                strokeColor = ColorStateList.valueOf(STROKE_ENABLED)
+                backgroundTintList = ColorStateList.valueOf(Color.WHITE)
+                rippleColor = ColorStateList.valueOf(Color.parseColor("#22000000"))
+            }
+        }
     }
 
     private fun dp(v: Int): Int = (v * activity.resources.displayMetrics.density).toInt()
@@ -540,10 +631,19 @@ class HandlerOpeningScreen(private val activity: MainActivity) {
         val ageMs = if (ts > 0L) (System.currentTimeMillis() - ts) else 0L
         val h = TimeUnit.MILLISECONDS.toHours(ageMs)
         val m = TimeUnit.MILLISECONDS.toMinutes(ageMs) - h * 60
-        statusSession.text = if (ts > 0L) "Session: ${h}h ${m}m" else "Session: —"
+        if (ts > 0L) {
+            // ⚠️ anhängen, wenn >12h, der eigentliche Hinweis/Styling kommt aus applySessionAgeHighlight()
+            val warn = if (ageMs >= SESSION_WARN_AFTER_MS) "  ⚠️" else ""
+            statusSession.text = "${t("session_label")}: ${h}${t("hours_short")} ${m}${t("minutes_short")}$warn"
+        } else {
+            statusSession.text = t("session_dash")
+        }
         val online = NetworkUtils.isOnline(activity)
-        statusOnline.text = if (online) "Online" else "Offline"
+        statusOnline.text = if (online) t("online") else t("offline")
         statusOnline.setTextColor(if (online) Color.parseColor("#2E7D32") else Color.parseColor("#C62828"))
+
+        // <<< NEU: hier jeweils prüfen/markieren
+        applySessionAgeHighlight(ageMs)
     }
 
     fun refreshHeaderStatusLive() {
@@ -563,6 +663,57 @@ class HandlerOpeningScreen(private val activity: MainActivity) {
         coachEditText.alpha = 0.95f
     }
 
+    private fun applySessionAgeHighlight(ageMs: Long) {
+        val isOld = ageMs >= SESSION_WARN_AFTER_MS
+        if (isOld) {
+            statusSession.setTextColor(Color.parseColor("#C62828"))
+            statusSession.setBackgroundColor(Color.parseColor("#FFF3CD"))
+            statusSession.setPadding(dp(8), dp(4), dp(8), dp(4))
+            if (!sessionLongWarnedOnce) {
+                showRedToast(activity, t("session_over_12"))
+                sessionLongWarnedOnce = true
+            }
+        } else {
+            statusSession.setTextColor(Color.parseColor("#2F2A49"))
+            statusSession.setBackgroundColor(Color.TRANSPARENT)
+            statusSession.setPadding(0, 0, 0, 0)
+        }
+    }
+
+
+
+    private fun showRedToast(ctx: android.content.Context, message: String) {
+        val tv = android.widget.TextView(ctx).apply {
+            text = message
+            setTextColor(android.graphics.Color.WHITE)
+            textSize = 16f
+            setPadding(32, 20, 32, 20)
+            background = android.graphics.drawable.GradientDrawable().apply {
+                shape = android.graphics.drawable.GradientDrawable.RECTANGLE
+                cornerRadius = 24f
+                setColor(android.graphics.Color.parseColor("#D32F2F")) // kräftiges Rot
+            }
+        }
+        android.widget.Toast(ctx).apply {
+            duration = android.widget.Toast.LENGTH_LONG
+            view = tv
+            setGravity(android.view.Gravity.TOP or android.view.Gravity.CENTER_HORIZONTAL, 0, 120)
+        }.show()
+    }
+
+    private fun confirmUpload(onConfirm: () -> Unit) {
+        MaterialAlertDialogBuilder(activity)
+            .setTitle(t("start_upload"))
+            .setMessage(t("ask_before_upload"))
+            .setPositiveButton(t("ok")) { d, _ ->
+                d.dismiss()
+                onConfirm()
+            }
+            .setNegativeButton(t("cancel")) { d, _ ->
+                d.dismiss()
+            }
+            .show()
+    }
 
 
 }

app/src/main/java/com/dano/test1/HandlerRadioQuestion.kt

@@ -8,6 +8,11 @@ import kotlinx.coroutines.*
 import android.util.TypedValue
 import androidx.core.widget.TextViewCompat    // <— hinzugefügt
 
+/*
+Zweck:
+- Steuert eine Einzelfrage mit genau einer auswählbaren Antwort (RadioButtons).
+*/
+
 class HandlerRadioQuestion(
     private val context: Context,
     private val answers: MutableMap<String, Any>,
@@ -36,7 +41,7 @@ class HandlerRadioQuestion(
             Html.fromHtml(LanguageManager.getText(languageID, it), Html.FROM_HTML_MODE_LEGACY)
         } ?: ""
 
-        // === Schriftgrößen wie im HandlerClientCoachCode ===
+        //
         // Titel/Frage: 3% der Bildschirmhöhe
         setTextSizePercentOfScreenHeight(questionTextView, 0.03f)
         setTextSizePercentOfScreenHeight(questionTitle,   0.03f)
@@ -132,7 +137,7 @@ class HandlerRadioQuestion(
         }
     }
 
-    // ——— Helper: setzt Textgröße prozentual zur Bildschirmhöhe (in sp) ———
+    //  setzt Textgröße prozentual zur Bildschirmhöhe (in sp)
     private fun setTextSizePercentOfScreenHeight(view: TextView, percentOfHeight: Float) {
         val dm = (view.context ?: layout.context).resources.displayMetrics
         val sp = (dm.heightPixels * percentOfHeight) / dm.scaledDensity

app/src/main/java/com/dano/test1/HandlerStringSpinner.kt

@@ -9,6 +9,12 @@ import android.util.TypedValue
 import android.widget.TextView
 import androidx.core.widget.TextViewCompat
 
+/*
+Zweck:
+- Steuert eine Frage mit einer einzelnen Auswahl aus einer Dropdown-Liste (Spinner).
+- Baut die Optionen dynamisch auf, lokalisiert Texte, stellt responsive Typografie her und kann vorhandene Antworten aus der lokalen Room-DB restaurieren.
+*/
+
 class HandlerStringSpinner(
     private val context: Context,
     private val answers: MutableMap<String, Any>,
@@ -16,7 +22,7 @@ class HandlerStringSpinner(
     private val goToNextQuestion: () -> Unit,
     private val goToPreviousQuestion: () -> Unit,
     private val showToast: (String) -> Unit,
-    private val questionnaireMeta: String // Meta, damit dieselbe DB-ID wie in anderen Handlern gebildet wird
+    private val questionnaireMeta: String
 ) : QuestionHandler {
 
     private lateinit var layout: View
@@ -36,20 +42,19 @@ class HandlerStringSpinner(
         questionTextView.text = question.question?.let { LanguageManager.getText(languageID, it) } ?: ""
         textView.text = question.textKey?.let { LanguageManager.getText(languageID, it) } ?: ""
 
-        // === Textgrößen prozentual zur Bildschirmhöhe (wie im HandlerRadioQuestion) ===
+        // Textgrößen prozentual zur Bildschirmhöhe (wie im HandlerRadioQuestion)
         setTextSizePercentOfScreenHeight(textView,         0.03f)
         setTextSizePercentOfScreenHeight(questionTextView, 0.03f)
-        // ==============================================================================
 
         val options = buildOptionsList()
 
         // vorhandene Auswahl (falls vorhanden)
         val savedSelection = question.question?.let { answers[it] as? String }
 
-        // Spinner aufsetzen (Schriftgröße & Zeilenhöhe dynamisch, kein Abschneiden)
+        // Spinner aufsetzen
         setupSpinner(spinner, options, savedSelection)
 
-        // Falls noch keine Antwort im Map: aus DB laden (analog zu anderen Handlern)
+        // Falls noch keine Antwort im Map: aus DB laden
         val answerMapKey = question.question ?: (question.id ?: "")
         if (answerMapKey.isNotBlank() && !answers.containsKey(answerMapKey)) {
             CoroutineScope(Dispatchers.IO).launch {

app/src/main/java/com/dano/test1/HandlerValueSpinner.kt

@@ -8,6 +8,14 @@ import kotlinx.coroutines.*
 import android.util.TypedValue
 import androidx.core.widget.TextViewCompat   // <- NEU
 
+/*
+Zweck:
+- Steuert eine Frage, bei der ein numerischer Wert aus einem Spinner gewählt wird.
+- Unterstützt sowohl feste Optionslisten als auch numerische Bereiche (min..max).
+- Lokalisiert Texte, kann eine frühere Antwort aus der lokalen Room-DB (per AnswerDao) wiederherstellen.
+
+*/
+
 class HandlerValueSpinner(
     private val context: Context,
     private val answers: MutableMap<String, Any>,
@@ -16,7 +24,7 @@ class HandlerValueSpinner(
     private val goToPreviousQuestion: () -> Unit,
     private val goToQuestionById: (String) -> Unit,
     private val showToast: (String) -> Unit,
-    private val questionnaireMeta: String // neu: für die DB-Abfrage
+    private val questionnaireMeta: String
 ) : QuestionHandler {
 
     private lateinit var layout: View
@@ -35,11 +43,10 @@ class HandlerValueSpinner(
         questionTextView.text = question.question?.let { LanguageManager.getText(languageID, it) } ?: ""
         textView.text = question.textKey?.let { LanguageManager.getText(languageID, it) } ?: ""
 
-        // === Schriftgrößen wie im HandlerRadioQuestion ===
+// Schriftgrößen wie im HandlerRadioQuestion
         // Titel/Frage: 3% der Bildschirmhöhe
         setTextSizePercentOfScreenHeight(textView,          0.03f)
         setTextSizePercentOfScreenHeight(questionTextView,  0.03f)
-        // =================================================
 
         val prompt = LanguageManager.getText(languageID, "choose_answer")
         val spinnerItems: List<String> = listOf(prompt) + if (question.range != null) {
@@ -51,7 +58,7 @@ class HandlerValueSpinner(
         val savedValue = question.question?.let { answers[it] as? String }
         setupSpinner(spinner, spinnerItems, savedValue)
 
-        // --- DB-Abfrage falls noch keine Antwort im Map existiert ---
+        //DB-Abfrage falls noch keine Antwort im Map existiert
         val answerMapKey = question.question ?: (question.id ?: "")
         if (answerMapKey.isNotBlank() && !answers.containsKey(answerMapKey)) {
             CoroutineScope(Dispatchers.IO).launch {
@@ -120,14 +127,13 @@ class HandlerValueSpinner(
         }
     }
 
-    // ——— Helper: setzt Textgröße prozentual zur Bildschirmhöhe (in sp) ———
+    // setzt Textgröße prozentual zur Bildschirmhöhe (in sp)
     private fun setTextSizePercentOfScreenHeight(view: TextView, percentOfHeight: Float) {
         val dm = (view.context ?: layout.context).resources.displayMetrics
         val sp = (dm.heightPixels * percentOfHeight) / dm.scaledDensity
         TextViewCompat.setAutoSizeTextTypeWithDefaults(view, TextViewCompat.AUTO_SIZE_TEXT_TYPE_NONE)
         view.setTextSize(TypedValue.COMPLEX_UNIT_SP, sp)
     }
-    // ————————————————————————————————————————————————————————————————
 
     private fun <T> setupSpinner(spinner: Spinner, items: List<T>, selectedItem: T?) {
         val dm = context.resources.displayMetrics

app/src/main/java/com/dano/test1/HeaderOrderRepository.kt

@@ -7,11 +7,23 @@ import org.apache.poi.xssf.usermodel.XSSFWorkbook
 import org.json.JSONArray
 import java.nio.charset.Charset
 
-class HeaderOrderRepository(private val context: Context) {
+/*
+Zweck:
+- Liefert die Reihenfolge/IDs der zu exportierenden Header (Spalten) für den Excel-Export.
+- Bevorzugte Quelle ist eine Excel-Datei aus den App-Assets („header_order.xlsx“), als Fallback wird eine JSON-Datei („header_order.json“) genutzt.
+
+*/
+class HeaderOrderRepository(
+    private val context: Context,
+    // Sprache abrufen (Standard: Deutsch, damit es ohne OpeningScreen schon sinnvoll ist)
+    private val languageIDProvider: () -> String = { "GERMAN" }
+) {
 
     private val tag = "HeaderOrderRepository"
     private var orderedIdsCache: List<String>? = null
 
+    private fun t(key: String): String = LanguageManager.getText(languageIDProvider(), key)
+
     fun loadOrderedIds(): List<String> {
         orderedIdsCache?.let { return it }
 
@@ -33,7 +45,7 @@ class HeaderOrderRepository(private val context: Context) {
             list
         } catch (e: Exception) {
             Log.e(tag, "Weder header_order.xlsx noch header_order.json verfügbar/gültig: ${e.message}")
-            Toast.makeText(context, "Keine Header-Vorlage gefunden", Toast.LENGTH_LONG).show()
+            Toast.makeText(context, t("no_header_template_found"), Toast.LENGTH_LONG).show()
             emptyList()
         }
     }

app/src/main/java/com/dano/test1/LanguageManager.kt

@@ -354,7 +354,58 @@ object LanguageManager {
             "error_generic"           to "Fehler",
             "not_done"  to "Nicht Fertog",
             "none"      to "Keine Angabe",
-            "points" to "Punkte"
+            "points" to "Punkte",
+            "saved_pdf_csv" to "PDF und CSV wurden im Ordner \"Downloads\" gespeichert.",
+            "no_pdf_viewer" to "Kein PDF-Viewer installiert.",
+            "save_error"    to "Fehler beim Speichern: {message}",
+            "login_required_title"        to "Login erforderlich",
+            "username_hint"               to "Benutzername",
+            "password_hint"               to "Passwort",
+            "login_btn"                   to "Login",
+            "exit_btn"                    to "Beenden",
+            "please_username_password"    to "Bitte Benutzername und Passwort eingeben.",
+            "download_failed_no_local_db" to "Download fehlgeschlagen – keine lokale Datenbank vorhanden",
+            "download_failed_use_offline" to "Download fehlgeschlagen – arbeite offline mit vorhandener Datenbank",
+            "login_failed_with_reason"    to "Login fehlgeschlagen: {reason}",
+            "no_header_template_found"    to "Keine Header-Vorlage gefunden",
+            "login_required"              to "Bitte zuerst einloggen",
+            "questionnaire"               to "Fragebogen",
+            "session_label"               to "Sitzung",
+            "session_dash"                to "Sitzung: —",
+            "hours_short"                 to "h",
+            "minutes_short"               to "m",
+            "online"                      to "Online",
+            "offline"                     to "Offline",
+            "open_client_via_load"        to "Bitte den Klienten über „Laden“ öffnen.",
+            "database"                    to "Datenbank",
+            "database_clients_title"      to "Datenbank – Clients",
+            "no_clients_available"        to "Keine Clients vorhanden.",
+            "previous"                    to "Zurück",
+            "download_header"             to "Header herunterladen",
+            "client_code"                 to "Client-Code",
+            "export_success_downloads"    to "Export erfolgreich: Downloads/ClientHeaders.xlsx",
+            "export_failed"               to "Export fehlgeschlagen.",
+            "error"                       to "Fehler",
+            "client"                      to "Client",
+            "questionnaires"              to "Fragebögen",
+            "headers"                     to "Header",
+            "questionnaire_id"            to "Fragebogen-ID",
+            "status"                      to "Status",
+            "id"                          to "ID",
+            "value"                       to "Wert",
+            "no_questionnaires"           to "Keine Fragebögen vorhanden.",
+            "no_questions_available"      to "Keine Fragen vorhanden.",
+            "question"                    to "Frage",
+            "answer"                      to "Antwort",
+            "done"                        to "Erledigt",
+            "not_done"                    to "Nicht erledigt",
+            "none"                        to "Keine",
+            "view_missing"                to "Fehlende View: %s",
+            "session_over_12"             to "Sitzung läuft länger als 12 Stunden.",
+            "cancel"                      to "Cancel",
+            "ok"                          to "OK",
+            "ask_before_upload"           to "Möchtest du den Upload wirklich ausführen?",
+            "start_upload"                to "Upload starten?"
         ),
 
         "ENGLISH" to mapOf(
@@ -679,7 +730,58 @@ object LanguageManager {
             "done" to "Done",
             "locked" to "Locked",
             "start" to "Start",
-            "points" to "Points"
+            "points" to "Points",
+            "saved_pdf_csv" to "PDF and CSV were saved in the \"Downloads\" folder.",
+            "no_pdf_viewer" to "No PDF viewer installed.",
+            "save_error"    to "Error while saving: {message}",
+            "login_required_title"        to "Login required",
+            "username_hint"               to "Username",
+            "password_hint"               to "Password",
+            "login_btn"                   to "Login",
+            "exit_btn"                    to "Exit",
+            "please_username_password"    to "Please enter username and password.",
+            "download_failed_no_local_db" to "Download failed – no local database available",
+            "download_failed_use_offline" to "Download failed – working offline with existing database",
+            "login_failed_with_reason"    to "Login failed: {reason}",
+            "no_header_template_found"    to "No header template found",
+            "login_required"              to "Please log in first",
+            "questionnaire"               to "Questionnaire",
+            "session_label"               to "Session",
+            "session_dash"                to "Session: —",
+            "hours_short"                 to "h",
+            "minutes_short"               to "min",
+            "online"                      to "Online",
+            "offline"                     to "Offline",
+            "open_client_via_load"        to "Please open the client via \"Load\".",
+            "database"                    to "Database",
+            "database_clients_title"      to "Database – Clients",
+            "no_clients_available"        to "No clients available.",
+            "previous"                    to "Back",
+            "download_header"             to "Download header",
+            "client_code"                 to "Client code",
+            "export_success_downloads"    to "Export successful: Downloads/ClientHeaders.xlsx",
+            "export_failed"               to "Export failed.",
+            "error"                       to "Error",
+            "client"                      to "Client",
+            "questionnaires"              to "Questionnaires",
+            "headers"                     to "Headers",
+            "questionnaire_id"            to "Questionnaire ID",
+            "status"                      to "Status",
+            "id"                          to "ID",
+            "value"                       to "Value",
+            "no_questionnaires"           to "No questionnaires available.",
+            "no_questions_available"      to "No questions available.",
+            "question"                    to "Question",
+            "answer"                      to "Answer",
+            "done"                        to "Done",
+            "not_done"                    to "Not done",
+            "none"                        to "None",
+            "view_missing"                to "Missing view: %s",
+            "session_over_12"   to "Session has been running for more than 12 hours.",
+            "cancel"            to "Cancel",
+            "ok"                to "OK",
+            "ask_before_upload" to "Do you really want to perform the upload?",
+            "start_upload"      to "Start upload?"
         ),
 
         "FRENCH" to mapOf(
@@ -1008,7 +1110,58 @@ object LanguageManager {
             "done" to "Terminé",
             "locked" to "Verrouillé",
             "start" to "Commencer",
-            "points" to "Points"
+            "points" to "Points",
+            "saved_pdf_csv" to "Les PDF et CSV ont été enregistrés dans le dossier \"Téléchargements\".",
+            "no_pdf_viewer" to "Aucun lecteur PDF installé.",
+            "save_error"    to "Erreur lors de l’enregistrement : {message}",
+            "login_required_title"        to "Connexion requise",
+            "username_hint"               to "Nom d’utilisateur",
+            "password_hint"               to "Mot de passe",
+            "login_btn"                   to "Se connecter",
+            "exit_btn"                    to "Quitter",
+            "please_username_password"    to "Veuillez saisir le nom d’utilisateur et le mot de passe.",
+            "download_failed_no_local_db" to "Échec du téléchargement – aucune base de données locale disponible",
+            "download_failed_use_offline" to "Échec du téléchargement – travaillez hors ligne avec la base de données existante",
+            "login_failed_with_reason"    to "Échec de la connexion : {reason}",
+            "no_header_template_found"    to "Aucun modèle d’en-tête trouvé",
+            "login_required"              to "Veuillez d’abord vous connecter",
+            "questionnaire"               to "Questionnaire",
+            "session_label"               to "Session",
+            "session_dash"                to "Session : —",
+            "hours_short"                 to "h",
+            "minutes_short"               to "min",
+            "online"                      to "En ligne",
+            "offline"                     to "Hors ligne",
+            "open_client_via_load"        to "Veuillez ouvrir le client via « Charger ».",
+            "database"                    to "Base de données",
+            "database_clients_title"      to "Base de données – Clients",
+            "no_clients_available"        to "Aucun client disponible.",
+            "previous"                    to "Retour",
+            "download_header"             to "Télécharger l’en-tête",
+            "client_code"                 to "Code client",
+            "export_success_downloads"    to "Export réussi : Téléchargements/ClientHeaders.xlsx",
+            "export_failed"               to "Échec de l’exportation.",
+            "error"                       to "Erreur",
+            "client"                      to "Client",
+            "questionnaires"              to "Questionnaires",
+            "headers"                     to "En-têtes",
+            "questionnaire_id"            to "ID du questionnaire",
+            "status"                      to "Statut",
+            "id"                          to "ID",
+            "value"                       to "Valeur",
+            "no_questionnaires"           to "Aucun questionnaire disponible.",
+            "no_questions_available"      to "Aucune question disponible.",
+            "question"                    to "Question",
+            "answer"                      to "Réponse",
+            "done"                        to "Terminé",
+            "not_done"                    to "Non terminé",
+            "none"                        to "Aucun",
+            "view_missing"                to "Vue manquante : %s",
+            "session_over_12"   to "La session dure depuis plus de 12 heures.",
+            "cancel"            to "Annuler",
+            "ok"                to "OK",
+            "ask_before_upload" to "Voulez-vous vraiment effectuer le téléversement ?",
+            "start_upload"      to "Démarrer le téléversement ?"
         ),
 
         "RUSSIAN" to mapOf(
@@ -1333,7 +1486,58 @@ object LanguageManager {
             "done" to "Готово",
             "locked" to "Заблокировано",
             "start" to "Начать",
-            "points" to "Баллы"
+            "points" to "Баллы",
+            "saved_pdf_csv" to "PDF и CSV сохранены в папке «Загрузки».",
+            "no_pdf_viewer" to "Не установлен просмотрщик PDF.",
+            "save_error"    to "Ошибка при сохранении: {message}",
+            "login_required_title"        to "Требуется вход",
+            "username_hint"               to "Имя пользователя",
+            "password_hint"               to "Пароль",
+            "login_btn"                   to "Войти",
+            "exit_btn"                    to "Выход",
+            "please_username_password"    to "Введите имя пользователя и пароль.",
+            "download_failed_no_local_db" to "Сбой загрузки – локальная база данных отсутствует",
+            "download_failed_use_offline" to "Сбой загрузки – работа офлайн с имеющейся базой данных",
+            "login_failed_with_reason"    to "Не удалось войти: {reason}",
+            "no_header_template_found"    to "Шаблон заголовков не найден",
+            "login_required"              to "Сначала выполните вход",
+            "questionnaire"               to "Опросник",
+            "session_label"               to "Сессия",
+            "session_dash"                to "Сессия: —",
+            "hours_short"                 to "ч",
+            "minutes_short"               to "м",
+            "online"                      to "В сети",
+            "offline"                     to "Не в сети",
+            "open_client_via_load"        to "Откройте клиента через «Загрузить».",
+            "database"                    to "База данных",
+            "database_clients_title"      to "База данных – клиенты",
+            "no_clients_available"        to "Клиенты отсутствуют.",
+            "previous"                    to "Назад",
+            "download_header"             to "Скачать заголовки",
+            "client_code"                 to "Код клиента",
+            "export_success_downloads"    to "Экспорт выполнен: Загрузки/ClientHeaders.xlsx",
+            "export_failed"               to "Ошибка экспорта.",
+            "error"                       to "Ошибка",
+            "client"                      to "Клиент",
+            "questionnaires"              to "Опросники",
+            "headers"                     to "Заголовки",
+            "questionnaire_id"            to "ID опросника",
+            "status"                      to "Статус",
+            "id"                          to "ID",
+            "value"                       to "Значение",
+            "no_questionnaires"           to "Нет доступных опросников.",
+            "no_questions_available"      to "Нет вопросов.",
+            "question"                    to "Вопрос",
+            "answer"                      to "Ответ",
+            "done"                        to "Готово",
+            "not_done"                    to "Не выполнено",
+            "none"                        to "Нет",
+            "view_missing"                to "Отсутствует представление: %s",
+            "session_over_12"   to "Сеанс продолжается более 12 часов.",
+            "cancel"            to "Отмена",
+            "ok"                to "OK",
+            "ask_before_upload" to "Вы действительно хотите выполнить загрузку?",
+            "start_upload"      to "Начать загрузку?"
         ),
 
         "UKRAINIAN" to mapOf(
@@ -1662,7 +1866,58 @@ object LanguageManager {
             "done" to "Завершено",
             "locked" to "Заблоковано",
             "start" to "Почати",
-            "points" to "Бали"
+            "points" to "Бали",
+            "saved_pdf_csv" to "PDF і CSV збережено в папці «Завантаження».",
+            "no_pdf_viewer" to "Не встановлено переглядач PDF.",
+            "save_error"    to "Помилка збереження: {message}",
+            "login_required_title"        to "Потрібен вхід",
+            "username_hint"               to "Ім’я користувача",
+            "password_hint"               to "Пароль",
+            "login_btn"                   to "Увійти",
+            "exit_btn"                    to "Вийти",
+            "please_username_password"    to "Введіть ім’я користувача та пароль.",
+            "download_failed_no_local_db" to "Завантаження не вдалося — немає локальної бази даних",
+            "download_failed_use_offline" to "Завантаження не вдалося — працюйте офлайн з наявною базою даних",
+            "login_failed_with_reason"    to "Не вдалося увійти: {reason}",
+            "no_header_template_found"    to "Шаблон заголовків не знайдено",
+            "login_required"              to "Спочатку увійдіть",
+            "questionnaire"               to "Анкета",
+            "session_label"               to "Сесія",
+            "session_dash"                to "Сесія: —",
+            "hours_short"                 to "год",
+            "minutes_short"               to "хв",
+            "online"                      to "Онлайн",
+            "offline"                     to "Офлайн",
+            "open_client_via_load"        to "Відкрийте клієнта через «Завантажити».",
+            "database"                    to "База даних",
+            "database_clients_title"      to "База даних – клієнти",
+            "no_clients_available"        to "Немає клієнтів.",
+            "previous"                    to "Назад",
+            "download_header"             to "Завантажити заголовки",
+            "client_code"                 to "Код клієнта",
+            "export_success_downloads"    to "Експорт виконано: Завантаження/ClientHeaders.xlsx",
+            "export_failed"               to "Помилка експорту.",
+            "error"                       to "Помилка",
+            "client"                      to "Клієнт",
+            "questionnaires"              to "Анкети",
+            "headers"                     to "Заголовки",
+            "questionnaire_id"            to "ID анкети",
+            "status"                      to "Статус",
+            "id"                          to "ID",
+            "value"                       to "Значення",
+            "no_questionnaires"           to "Немає доступних анкет.",
+            "no_questions_available"      to "Немає запитань.",
+            "question"                    to "Питання",
+            "answer"                      to "Відповідь",
+            "done"                        to "Готово",
+            "not_done"                    to "Не виконано",
+            "none"                        to "Немає",
+            "view_missing"                to "Відсутній елемент інтерфейсу: %s",
+            "session_over_12"   to "Сеанс триває понад 12 годин.",
+            "cancel"            to "Скасувати",
+            "ok"                to "OK",
+            "ask_before_upload" to "Ви справді хочете виконати завантаження?",
+            "start_upload"      to "Почати завантаження?"
         ),
 
         "TURKISH" to mapOf(
@@ -1991,7 +2246,58 @@ object LanguageManager {
             "done" to "Tamamlandı",
             "locked" to "Kilitli",
             "start" to "Başlat",
-            "points" to "Puan"
+            "points" to "Puan",
+            "saved_pdf_csv" to "PDF ve CSV \"İndirilenler\" klasörüne kaydedildi.",
+            "no_pdf_viewer" to "Yüklü bir PDF görüntüleyici yok.",
+            "save_error"    to "Kaydetme hatası: {message}",
+            "login_required_title"        to "Giriş gerekli",
+            "username_hint"               to "Kullanıcı adı",
+            "password_hint"               to "Şifre",
+            "login_btn"                   to "Giriş yap",
+            "exit_btn"                    to "Çıkış",
+            "please_username_password"    to "Lütfen kullanıcı adı ve şifre girin.",
+            "download_failed_no_local_db" to "İndirme başarısız – yerel veritabanı yok",
+            "download_failed_use_offline" to "İndirme başarısız – mevcut veritabanıyla çevrimdışı çalışın",
+            "login_failed_with_reason"    to "Giriş başarısız: {reason}",
+            "no_header_template_found"    to "Başlık şablonu bulunamadı",
+            "login_required"              to "Lütfen önce giriş yapın",
+            "questionnaire"               to "Anket",
+            "session_label"               to "Oturum",
+            "session_dash"                to "Oturum: —",
+            "hours_short"                 to "sa",
+            "minutes_short"               to "dk",
+            "online"                      to "Çevrimiçi",
+            "offline"                     to "Çevrimdışı",
+            "open_client_via_load"        to "Lütfen müşteriyi \"Yükle\" ile açın.",
+            "database"                    to "Veritabanı",
+            "database_clients_title"      to "Veritabanı – Müşteriler",
+            "no_clients_available"        to "Kullanılabilir müşteri yok.",
+            "previous"                    to "Geri",
+            "download_header"             to "Başlığı indir",
+            "client_code"                 to "Müşteri kodu",
+            "export_success_downloads"    to "Dışa aktarma başarılı: İndirilenler/ClientHeaders.xlsx",
+            "export_failed"               to "Dışa aktarma başarısız.",
+            "error"                       to "Hata",
+            "client"                      to "Müşteri",
+            "questionnaires"              to "Anketler",
+            "headers"                     to "Başlıklar",
+            "questionnaire_id"            to "Anket ID",
+            "status"                      to "Durum",
+            "id"                          to "ID",
+            "value"                       to "Değer",
+            "no_questionnaires"           to "Mevcut anket yok.",
+            "no_questions_available"      to "Soru yok.",
+            "question"                    to "Soru",
+            "answer"                      to "Cevap",
+            "done"                        to "Tamamlandı",
+            "not_done"                    to "Tamamlanmadı",
+            "none"                        to "Yok",
+            "view_missing"                to "Eksik görünüm: %s",
+            "session_over_12"   to "Oturum 12 saatten uzun süredir açık.",
+            "cancel"            to "İptal",
+            "ok"                to "Tamam",
+            "ask_before_upload" to "Yüklemeyi gerçekten yapmak istiyor musunuz?",
+            "start_upload"      to "Yüklemeyi başlat?"
         ),
 
         "POLISH" to mapOf(
@@ -2320,7 +2626,58 @@ object LanguageManager {
             "done" to "Gotowe",
             "locked" to "Zablokowane",
             "start" to "Rozpocznij",
-            "points" to "Punkty"
+            "points" to "Punkty",
+            "saved_pdf_csv" to "Pliki PDF i CSV zapisano w folderze \"Pobrane\".",
+            "no_pdf_viewer" to "Brak zainstalowanej przeglądarki PDF.",
+            "save_error"    to "Błąd zapisu: {message}",
+            "login_required_title"        to "Wymagane logowanie",
+            "username_hint"               to "Nazwa użytkownika",
+            "password_hint"               to "Hasło",
+            "login_btn"                   to "Zaloguj",
+            "exit_btn"                    to "Zakończ",
+            "please_username_password"    to "Wprowadź nazwę użytkownika i hasło.",
+            "download_failed_no_local_db" to "Pobieranie nieudane – brak lokalnej bazy danych",
+            "download_failed_use_offline" to "Pobieranie nieudane – pracuj offline z istniejącą bazą danych",
+            "login_failed_with_reason"    to "Logowanie nie powiodło się: {reason}",
+            "no_header_template_found"    to "Nie znaleziono szablonu nagłówków",
+            "login_required"              to "Najpierw się zaloguj",
+            "questionnaire"               to "Kwestionariusz",
+            "session_label"               to "Sesja",
+            "session_dash"                to "Sesja: —",
+            "hours_short"                 to "h",
+            "minutes_short"               to "min",
+            "online"                      to "Online",
+            "offline"                     to "Offline",
+            "open_client_via_load"        to "Otwórz klienta przez „Wczytaj”.",
+            "database"                    to "Baza danych",
+            "database_clients_title"      to "Baza danych – Klienci",
+            "no_clients_available"        to "Brak dostępnych klientów.",
+            "previous"                    to "Wstecz",
+            "download_header"             to "Pobierz nagłówki",
+            "client_code"                 to "Kod klienta",
+            "export_success_downloads"    to "Eksport zakończony: Pobrane/ClientHeaders.xlsx",
+            "export_failed"               to "Eksport nieudany.",
+            "error"                       to "Błąd",
+            "client"                      to "Klient",
+            "questionnaires"              to "Kwestionariusze",
+            "headers"                     to "Nagłówki",
+            "questionnaire_id"            to "ID kwestionariusza",
+            "status"                      to "Status",
+            "id"                          to "ID",
+            "value"                       to "Wartość",
+            "no_questionnaires"           to "Brak dostępnych kwestionariuszy.",
+            "no_questions_available"      to "Brak pytań.",
+            "question"                    to "Pytanie",
+            "answer"                      to "Odpowiedź",
+            "done"                        to "Zrobione",
+            "not_done"                    to "Niezrobione",
+            "none"                        to "Brak",
+            "view_missing"                to "Brak widoku: %s",
+            "session_over_12"   to "Sesja trwa dłużej niż 12 godzin.",
+            "cancel"            to "Anuluj",
+            "ok"                to "OK",
+            "ask_before_upload" to "Czy na pewno chcesz wykonać przesyłanie?",
+            "start_upload"      to "Rozpocząć przesyłanie?"
         ),
 
         "ARABIC" to mapOf(
@@ -2649,7 +3006,58 @@ object LanguageManager {
             "done" to "تم",
             "locked" to "مقفل",
             "start" to "ابدأ",
-            "points" to "النقاط"
+            "points" to "النقاط",
+            "saved_pdf_csv" to "تم حفظ ملفات PDF وCSV في مجلد \"التنزيلات\".",
+            "no_pdf_viewer" to "لا يوجد عارض PDF مثبت.",
+            "save_error"    to "خطأ أثناء الحفظ: {message}",
+            "login_required_title"        to "يلزم تسجيل الدخول",
+            "username_hint"               to "اسم المستخدم",
+            "password_hint"               to "كلمة المرور",
+            "login_btn"                   to "تسجيل الدخول",
+            "exit_btn"                    to "إنهاء",
+            "please_username_password"    to "يرجى إدخال اسم المستخدم وكلمة المرور.",
+            "download_failed_no_local_db" to "فشل التنزيل — لا توجد قاعدة بيانات محلية",
+            "download_failed_use_offline" to "فشل التنزيل — العمل بدون اتصال باستخدام قاعدة البيانات الحالية",
+            "login_failed_with_reason"    to "فشل تسجيل الدخول: {reason}",
+            "no_header_template_found"    to "لم يتم العثور على قالب للرؤوس",
+            "login_required"              to "يرجى تسجيل الدخول أولاً",
+            "questionnaire"               to "استبيان",
+            "session_label"               to "الجلسة",
+            "session_dash"                to "الجلسة: —",
+            "hours_short"                 to "س",
+            "minutes_short"               to "د",
+            "online"                      to "متصل",
+            "offline"                     to "غير متصل",
+            "open_client_via_load"        to "يرجى فتح العميل عبر «تحميل».",
+            "database"                    to "قاعدة البيانات",
+            "database_clients_title"      to "قاعدة البيانات – العملاء",
+            "no_clients_available"        to "لا يوجد عملاء.",
+            "previous"                    to "رجوع",
+            "download_header"             to "تنزيل الرؤوس",
+            "client_code"                 to "رمز العميل",
+            "export_success_downloads"    to "تم التصدير بنجاح: التنزيلات/ClientHeaders.xlsx",
+            "export_failed"               to "فشل التصدير.",
+            "error"                       to "خطأ",
+            "client"                      to "عميل",
+            "questionnaires"              to "استبيانات",
+            "headers"                     to "رؤوس",
+            "questionnaire_id"            to "معرّف الاستبيان",
+            "status"                      to "الحالة",
+            "id"                          to "المعرّف",
+            "value"                       to "القيمة",
+            "no_questionnaires"           to "لا توجد استبيانات متاحة.",
+            "no_questions_available"      to "لا توجد أسئلة.",
+            "question"                    to "سؤال",
+            "answer"                      to "إجابة",
+            "done"                        to "منجز",
+            "not_done"                    to "غير منجز",
+            "none"                        to "لا شيء",
+            "view_missing"                to "العنصر المفقود: %s",
+            "session_over_12"   to "تعمل الجلسة منذ أكثر من 12 ساعة.",
+            "cancel"            to "إلغاء",
+            "ok"                to "موافق",
+            "ask_before_upload" to "هل ترغب فعلًا في تنفيذ الرفع؟",
+            "start_upload"      to "بدء الرفع؟"
         ),
 
         "ROMANIAN" to mapOf(
@@ -2978,7 +3386,58 @@ object LanguageManager {
             "done" to "Finalizat",
             "locked" to "Blocat",
             "start" to "Începe",
-            "points" to "Puncte"
+            "points" to "Puncte",
+            "saved_pdf_csv" to "PDF și CSV au fost salvate în folderul „Descărcări”.",
+            "no_pdf_viewer" to "Nu este instalat niciun vizualizator PDF.",
+            "save_error"    to "Eroare la salvare: {message}",
+            "login_required_title"        to "Autentificare necesară",
+            "username_hint"               to "Nume utilizator",
+            "password_hint"               to "Parolă",
+            "login_btn"                   to "Autentificare",
+            "exit_btn"                    to "Ieșire",
+            "please_username_password"    to "Introduceți numele de utilizator și parola.",
+            "download_failed_no_local_db" to "Descărcare eșuată – nu există bază de date locală",
+            "download_failed_use_offline" to "Descărcare eșuată – lucrați offline cu baza de date existentă",
+            "login_failed_with_reason"    to "Autentificarea a eșuat: {reason}",
+            "no_header_template_found"    to "Nu s-a găsit șablon de antet",
+            "login_required"              to "Conectați-vă mai întâi",
+            "questionnaire"               to "Chestionar",
+            "session_label"               to "Sesiune",
+            "session_dash"                to "Sesiune: —",
+            "hours_short"                 to "h",
+            "minutes_short"               to "min",
+            "online"                      to "Online",
+            "offline"                     to "Offline",
+            "open_client_via_load"        to "Deschideți clientul prin „Încărcare”.",
+            "database"                    to "Bază de date",
+            "database_clients_title"      to "Bază de date – Clienți",
+            "no_clients_available"        to "Nu există clienți.",
+            "previous"                    to "Înapoi",
+            "download_header"             to "Descarcă antetul",
+            "client_code"                 to "Cod client",
+            "export_success_downloads"    to "Export reușit: Descărcări/ClientHeaders.xlsx",
+            "export_failed"               to "Export eșuat.",
+            "error"                       to "Eroare",
+            "client"                      to "Client",
+            "questionnaires"              to "Chestionare",
+            "headers"                     to "Antete",
+            "questionnaire_id"            to "ID chestionar",
+            "status"                      to "Stare",
+            "id"                          to "ID",
+            "value"                       to "Valoare",
+            "no_questionnaires"           to "Nu există chestionare disponibile.",
+            "no_questions_available"      to "Nu există întrebări.",
+            "question"                    to "Întrebare",
+            "answer"                      to "Răspuns",
+            "done"                        to "Finalizat",
+            "not_done"                    to "Nefinalizat",
+            "none"                        to "Nimic",
+            "view_missing"                to "Vizualizare lipsă: %s",
+            "session_over_12"   to "Sesiunea rulează de mai bine de 12 ore.",
+            "cancel"            to "Anulează",
+            "ok"                to "OK",
+            "ask_before_upload" to "Vrei într-adevăr să efectuezi încărcarea?",
+            "start_upload"      to "Pornești încărcarea?"
         ),
 
         "SPANISH" to mapOf(
@@ -3307,7 +3766,58 @@ object LanguageManager {
             "done" to "Completado",
             "locked" to "Bloqueado",
             "start" to "Iniciar",
-            "points" to "Puncte"
+            "points" to "Puncte",
+            "saved_pdf_csv" to "Los archivos PDF y CSV se han guardado en la carpeta \"Descargas\".",
+            "no_pdf_viewer" to "No hay un visor de PDF instalado.",
+            "save_error"    to "Error al guardar: {message}",
+            "login_required_title"        to "Se requiere inicio de sesión",
+            "username_hint"               to "Nombre de usuario",
+            "password_hint"               to "Contraseña",
+            "login_btn"                   to "Iniciar sesión",
+            "exit_btn"                    to "Salir",
+            "please_username_password"    to "Introduce nombre de usuario y contraseña.",
+            "download_failed_no_local_db" to "La descarga falló: no hay base de datos local",
+            "download_failed_use_offline" to "La descarga falló: trabaja sin conexión con la base de datos existente",
+            "login_failed_with_reason"    to "Error de inicio de sesión: {reason}",
+            "no_header_template_found"    to "No se encontró una plantilla de encabezados",
+            "login_required"              to "Inicia sesión primero",
+            "questionnaire"               to "Cuestionario",
+            "session_label"               to "Sesión",
+            "session_dash"                to "Sesión: —",
+            "hours_short"                 to "h",
+            "minutes_short"               to "min",
+            "online"                      to "En línea",
+            "offline"                     to "Sin conexión",
+            "open_client_via_load"        to "Abre el cliente mediante «Cargar».",
+            "database"                    to "Base de datos",
+            "database_clients_title"      to "Base de datos – Clientes",
+            "no_clients_available"        to "No hay clientes disponibles.",
+            "previous"                    to "Atrás",
+            "download_header"             to "Descargar encabezados",
+            "client_code"                 to "Código de cliente",
+            "export_success_downloads"    to "Exportación correcta: Descargas/ClientHeaders.xlsx",
+            "export_failed"               to "La exportación falló.",
+            "error"                       to "Error",
+            "client"                      to "Cliente",
+            "questionnaires"              to "Cuestionarios",
+            "headers"                     to "Encabezados",
+            "questionnaire_id"            to "ID del cuestionario",
+            "status"                      to "Estado",
+            "id"                          to "ID",
+            "value"                       to "Valor",
+            "no_questionnaires"           to "No hay cuestionarios disponibles.",
+            "no_questions_available"      to "No hay preguntas.",
+            "question"                    to "Pregunta",
+            "answer"                      to "Respuesta",
+            "done"                        to "Completado",
+            "not_done"                    to "No completado",
+            "none"                        to "Ninguno",
+            "view_missing"                to "Vista faltante: %s",
+            "session_over_12"   to "La sesión lleva más de 12 horas.",
+            "cancel"            to "Cancelar",
+            "ok"                to "OK",
+            "ask_before_upload" to "¿Realmente deseas realizar la carga?",
+            "start_upload"      to "¿Iniciar la carga?"
         )
     )
 }

app/src/main/java/com/dano/test1/LoginManager.kt

@@ -1,11 +1,13 @@
 package com.dano.test1
 
+import android.app.AlertDialog
 import android.content.Context
 import android.util.Log
-import kotlinx.coroutines.CoroutineScope
+import android.view.LayoutInflater
-import kotlinx.coroutines.Dispatchers
+import android.widget.EditText
-import kotlinx.coroutines.launch
+import android.widget.LinearLayout
-import kotlinx.coroutines.withContext
+import android.widget.Toast
+import kotlinx.coroutines.*
 import okhttp3.MediaType.Companion.toMediaType
 import okhttp3.OkHttpClient
 import okhttp3.Request
@@ -13,7 +15,8 @@ import okhttp3.RequestBody.Companion.toRequestBody
 import org.json.JSONObject
 
 object LoginManager {
-    private const val SERVER_LOGIN_URL = "http://49.13.157.44/login.php"
+    private const val SERVER_LOGIN_URL = "https://daniel-ocks.de/qdb/login.php"
+    private const val SERVER_CHANGE_URL = "https://daniel-ocks.de/qdb/change_password.php"
     private val client = OkHttpClient()
 
     fun loginUserWithCredentials(
@@ -39,23 +42,177 @@ object LoginManager {
                 val response = client.newCall(request).execute()
                 val text = response.body?.string()
 
-                if (response.isSuccessful && text != null) {
+                if (!response.isSuccessful || text == null) {
-                    val json = JSONObject(text)
-                    if (json.optBoolean("success")) {
-                        val token = json.getString("token")
-                        // => setzt auch den Login-Timestamp:
-                        TokenStore.save(context, token, username)
-                        withContext(Dispatchers.Main) { onSuccess(token) }
-                    } else {
-                        withContext(Dispatchers.Main) { onError("Login fehlgeschlagen") }
-                    }
-                } else {
                     withContext(Dispatchers.Main) { onError("Fehler beim Login (${response.code})") }
+                    return@launch
                 }
+
+                val json = JSONObject(text)
+                if (!json.optBoolean("success")) {
+                    withContext(Dispatchers.Main) { onError(json.optString("message", "Login fehlgeschlagen")) }
+                    return@launch
+                }
+
+                // Passwortwechsel erforderlich?
+                if (json.optBoolean("must_change_password", false)) {
+                    withContext(Dispatchers.Main) {
+                        showChangePasswordDialog(
+                            context = context,
+                            username = username,
+                            oldPassword = password,
+                            onChanged = { token ->
+                                // Nach PW-Änderung direkt eingeloggt
+                                TokenStore.save(context, token, username)
+                                onSuccess(token)
+                            },
+                            onError = onError
+                        )
+                    }
+                    return@launch
+                }
+
+                // normaler Login: Token speichern
+                val token = json.getString("token")
+                TokenStore.save(context, token, username)
+                withContext(Dispatchers.Main) { onSuccess(token) }
+
             } catch (e: Exception) {
                 Log.e("LOGIN", "Exception", e)
                 withContext(Dispatchers.Main) { onError("Exception: ${e.message}") }
             }
         }
     }
+
+    private fun showChangePasswordDialog(
+        context: Context,
+        username: String,
+        oldPassword: String,
+        onChanged: (String) -> Unit,
+        onError: (String) -> Unit
+    ) {
+        val container = LinearLayout(context).apply {
+            orientation = LinearLayout.VERTICAL
+            setPadding(48, 24, 48, 0)
+        }
+        val etNew = EditText(context).apply {
+            hint = "Neues Passwort"
+            inputType = android.text.InputType.TYPE_CLASS_TEXT or
+                    android.text.InputType.TYPE_TEXT_VARIATION_PASSWORD
+        }
+        val etRepeat = EditText(context).apply {
+            hint = "Neues Passwort (wiederholen)"
+            inputType = android.text.InputType.TYPE_CLASS_TEXT or
+                    android.text.InputType.TYPE_TEXT_VARIATION_PASSWORD
+        }
+        container.addView(etNew)
+        container.addView(etRepeat)
+
+        val dialog = AlertDialog.Builder(context)
+            .setTitle("Passwort ändern")
+            .setMessage("Du verwendest ein Standard-Konto. Bitte setze jetzt ein eigenes Passwort.")
+            .setView(container)
+            .setPositiveButton("OK", null)        // nicht sofort schließen lassen
+            .setNegativeButton("Abbrechen", null) // nicht sofort schließen lassen
+            .setCancelable(false)
+            .create()
+
+        dialog.setOnShowListener {
+            val btnOk = dialog.getButton(AlertDialog.BUTTON_POSITIVE)
+            val btnCancel = dialog.getButton(AlertDialog.BUTTON_NEGATIVE)
+
+            btnOk.setOnClickListener {
+                etNew.error = null
+                etRepeat.error = null
+
+                val p1 = etNew.text?.toString().orEmpty()
+                val p2 = etRepeat.text?.toString().orEmpty()
+
+                when {
+                    p1.length < 6 -> {
+                        etNew.error = "Mindestens 6 Zeichen."
+                        return@setOnClickListener
+                    }
+                    p1 != p2 -> {
+                        etRepeat.error = "Passwörter stimmen nicht überein."
+                        return@setOnClickListener
+                    }
+                    else -> {
+                        btnOk.isEnabled = false
+                        btnCancel.isEnabled = false
+                        changePassword(
+                            context = context,
+                            username = username,
+                            oldPassword = oldPassword,
+                            newPassword = p1,
+                            onChanged = { token ->
+                                dialog.dismiss()
+                                onChanged(token)
+                            },
+                            onError = { msg ->
+                                btnOk.isEnabled = true
+                                btnCancel.isEnabled = true
+                                Toast.makeText(context, msg, Toast.LENGTH_LONG).show()
+                            }
+                        )
+                    }
+                }
+            }
+
+            // >>> Überarbeitet: Abbrechen schließt Dialog und informiert den Aufrufer
+            btnCancel.setOnClickListener {
+                dialog.dismiss()
+                onError("Passwortänderung abgebrochen.")
+            }
+        }
+
+        dialog.show()
+    }
+
+
+
+    private fun changePassword(
+        context: Context,
+        username: String,
+        oldPassword: String,
+        newPassword: String,
+        onChanged: (String) -> Unit,
+        onError: (String) -> Unit
+    ) {
+        CoroutineScope(Dispatchers.IO).launch {
+            try {
+                val body = JSONObject()
+                    .put("username", username)
+                    .put("old_password", oldPassword)
+                    .put("new_password", newPassword)
+                    .toString()
+                    .toRequestBody("application/json".toMediaType())
+
+                val req = Request.Builder()
+                    .url(SERVER_CHANGE_URL)
+                    .post(body)
+                    .build()
+
+                val resp = client.newCall(req).execute()
+                val txt = resp.body?.string()
+
+                if (!resp.isSuccessful || txt == null) {
+                    withContext(Dispatchers.Main) { onError("Fehler beim Ändern (${resp.code})") }
+                    return@launch
+                }
+
+                val json = JSONObject(txt)
+                if (!json.optBoolean("success")) {
+                    withContext(Dispatchers.Main) { onError(json.optString("message", "Ändern fehlgeschlagen")) }
+                    return@launch
+                }
+
+                val token = json.getString("token")
+                withContext(Dispatchers.Main) { onChanged(token) }
+
+            } catch (e: Exception) {
+                Log.e("LOGIN", "changePassword Exception", e)
+                withContext(Dispatchers.Main) { onError("Exception: ${e.message}") }
+            }
+        }
+    }
 }

app/src/main/java/com/dano/test1/MainActivity.kt

@@ -27,6 +27,10 @@ class MainActivity : AppCompatActivity() {
     // LIVE: Network-Callback (optional für Statusleiste)
     private var netCb: ConnectivityManager.NetworkCallback? = null
 
+    // Wir kennen hier (vor dem OpeningScreen) noch keine Nutzerwahl → Deutsch als Startsprache.
+    private val bootLanguageId: String get() = "GERMAN"
+    private fun t(key: String): String = LanguageManager.getText(bootLanguageId, key)
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
@@ -57,11 +61,11 @@ class MainActivity : AppCompatActivity() {
             setPadding(dp(20), dp(8), dp(20), 0)
         }
         val etUser = EditText(this).apply {
-            hint = "Username"
+            hint = t("username_hint")
             setSingleLine()
         }
         val etPass = EditText(this).apply {
-            hint = "Passwort"
+            hint = t("password_hint")
             setSingleLine()
             inputType = android.text.InputType.TYPE_CLASS_TEXT or
                     android.text.InputType.TYPE_TEXT_VARIATION_PASSWORD
@@ -70,14 +74,14 @@ class MainActivity : AppCompatActivity() {
         container.addView(etPass)
 
         val dialog = AlertDialog.Builder(this)
-            .setTitle("Login erforderlich")
+            .setTitle(t("login_required_title"))
             .setView(container)
             .setCancelable(false)
-            .setPositiveButton("Login") { _, _ ->
+            .setPositiveButton(t("login_btn")) { _, _ ->
                 val user = etUser.text.toString().trim()
                 val pass = etPass.text.toString()
                 if (user.isEmpty() || pass.isEmpty()) {
-                    Toast.makeText(this, "Bitte Username & Passwort eingeben", Toast.LENGTH_SHORT).show()
+                    Toast.makeText(this, t("please_username_password"), Toast.LENGTH_SHORT).show()
                     showLoginThenDownload()
                     return@setPositiveButton
                 }
@@ -97,14 +101,14 @@ class MainActivity : AppCompatActivity() {
                             // Wenn Download fehlgeschlagen ist, aber evtl. schon eine DB lokal liegt,
                             // lassen wir den Nutzer trotzdem weiterarbeiten (Offline).
                             if (!ok && !hasLocalDb()) {
-                                Toast.makeText(this, "Download fehlgeschlagen – keine lokale Datenbank vorhanden", Toast.LENGTH_LONG).show()
+                                Toast.makeText(this, t("download_failed_no_local_db"), Toast.LENGTH_LONG).show()
                                 // Zurück zum Login, damit man es erneut probieren kann
                                 showLoginThenDownload()
                                 return@downloadAndReplaceDatabase
                             }
 
                             if (!ok) {
-                                Toast.makeText(this, "Download fehlgeschlagen – arbeite offline mit vorhandener DB", Toast.LENGTH_LONG).show()
+                                Toast.makeText(this, t("download_failed_use_offline"), Toast.LENGTH_LONG).show()
                             }
 
                             // Opening-Screen starten
@@ -115,12 +119,13 @@ class MainActivity : AppCompatActivity() {
                     },
                     onError = { msg ->
                         showBusy(false)
-                        Toast.makeText(this, msg, Toast.LENGTH_LONG).show()
+                        val txt = t("login_failed_with_reason").replace("{reason}", msg ?: "")
+                        Toast.makeText(this, txt, Toast.LENGTH_LONG).show()
                         showLoginThenDownload()
                     }
                 )
             }
-            .setNegativeButton("Beenden") { _, _ -> finishAffinity() }
+            .setNegativeButton(t("exit_btn")) { _, _ -> finishAffinity() }
             .create()
 
         dialog.show()

app/src/main/java/com/dano/test1/MyApp.kt

@@ -6,6 +6,19 @@ import androidx.room.Room
 import androidx.room.RoomDatabase
 import com.dano.test1.data.AppDatabase
 
+/*
+MyApp (Application)
+ - Einstiegspunkt der App, der einmal pro Prozessstart initialisiert wird.
+
+Besonderheiten der DB-Konfiguration:
+ - Name: "questionnaire_database"
+ - fallbackToDestructiveMigration():
+     * Falls sich das Schema ändert und keine Migration vorliegt,wird die DB zerstört und neu angelegt.
+ - setJournalMode(TRUNCATE):
+     * Verwendet TRUNCATE-Journal (keine separaten -wal/-shm Dateien), es existiert nur die Hauptdatei „questionnaire_database“.
+ - Callback onOpen():
+     * Loggt beim Öffnen der Datenbank einen Hinweis.
+*/
 class MyApp : Application() {
 
     companion object {
@@ -16,7 +29,7 @@ class MyApp : Application() {
     override fun onCreate() {
         super.onCreate()
 
-        // Room Datenbank bauen: nur die Hauptdatei, ohne WAL und Journal
+        // Room-Datenbank bauen: nur die Hauptdatei, ohne WAL und Journal
         database = Room.databaseBuilder(
             applicationContext,
             AppDatabase::class.java,

app/src/main/java/com/dano/test1/NetworkUtilis.kt

@@ -4,6 +4,20 @@ import android.content.Context
 import android.net.ConnectivityManager
 import android.net.NetworkCapabilities
 
+/*
+Zweck:
+- Einfache Hilfsklasse, um den aktuellen Online-Status des Geräts zu prüfen.
+
+Funktionsweise:
+- `isOnline(context)` nutzt den systemweiten `ConnectivityManager`, fragt die aktive Verbindung (`activeNetwork`) ab und prüft deren `NetworkCapabilities`.
+- Es wird nur dann `true` zurückgegeben, wenn:
+  * eine aktive Verbindung existiert und
+  * die Verbindung die Fähigkeit „INTERNET“ besitzt und
+  * die Verbindung als „VALIDATED“ gilt (vom System als funktionsfähig verifiziert).
+
+Verwendung:
+- Vo Netzwerkaufrufen (Login, Upload, Download) aufrufen, um „Offline“-Fälle frühzeitig abzufangen und nutzerfreundliche Meldungen zu zeigen.
+*/
 object NetworkUtils {
     fun isOnline(context: Context): Boolean {
         return try {

app/src/main/java/com/dano/test1/SaveButtonHandler.kt

@@ -98,7 +98,7 @@ class SaveButtonHandler(
                 pdfDocument.finishPage(page)
             }
 
-            Log.d("CSV_OUTPUT", "Generated CSV:\n${csvBuilder.toString()}")
+            Log.d("CSV_OUTPUT", "Generated CSV:\n${csvBuilder}")
 
             val pdfFileName = "DatabaseOutput_${actualClientCode}.pdf"
             val csvFileName = "DatabaseOutput_${actualClientCode}.csv"
@@ -108,12 +108,17 @@ class SaveButtonHandler(
                 val projection = arrayOf(android.provider.MediaStore.MediaColumns._ID)
                 val selection = "${android.provider.MediaStore.MediaColumns.DISPLAY_NAME} = ?"
                 val selectionArgs = arrayOf(name)
-                val query = resolver.query(android.provider.MediaStore.Downloads.EXTERNAL_CONTENT_URI, projection, selection, selectionArgs, null)
+                val query = resolver.query(
+                    android.provider.MediaStore.Downloads.EXTERNAL_CONTENT_URI,
+                    projection, selection, selectionArgs, null
+                )
                 query?.use { cursor ->
                     if (cursor.moveToFirst()) {
                         val idColumn = cursor.getColumnIndexOrThrow(android.provider.MediaStore.MediaColumns._ID)
                         val id = cursor.getLong(idColumn)
-                        val deleteUri = android.content.ContentUris.withAppendedId(android.provider.MediaStore.Downloads.EXTERNAL_CONTENT_URI, id)
+                        val deleteUri = android.content.ContentUris.withAppendedId(
+                            android.provider.MediaStore.Downloads.EXTERNAL_CONTENT_URI, id
+                        )
                         resolver.delete(deleteUri, null, null)
                     }
                 }
@@ -153,7 +158,8 @@ class SaveButtonHandler(
                 }
 
                 withContext(Dispatchers.Main) {
-                    Toast.makeText(activity, "PDF und CSV gespeichert in Downloads", Toast.LENGTH_LONG).show()
+                    val msg = LanguageManager.getText(languageIDProvider(), "saved_pdf_csv")
+                    Toast.makeText(activity, msg, Toast.LENGTH_LONG).show()
 
                     pdfUri?.let {
                         val intent = android.content.Intent(android.content.Intent.ACTION_VIEW).apply {
@@ -163,14 +169,17 @@ class SaveButtonHandler(
                         try {
                             activity.startActivity(intent)
                         } catch (e: android.content.ActivityNotFoundException) {
-                            Toast.makeText(activity, "Kein PDF-Viewer installiert", Toast.LENGTH_SHORT).show()
+                            val noViewer = LanguageManager.getText(languageIDProvider(), "no_pdf_viewer")
+                            Toast.makeText(activity, noViewer, Toast.LENGTH_SHORT).show()
                         }
                     }
                 }
             } catch (e: Exception) {
                 Log.e("SAVE", "Fehler beim Speichern der Dateien", e)
                 withContext(Dispatchers.Main) {
-                    Toast.makeText(activity, "Fehler beim Speichern: ${e.message}", Toast.LENGTH_LONG).show()
+                    val errTpl = LanguageManager.getText(languageIDProvider(), "save_error")
+                    val msg = (errTpl ?: "Fehler beim Speichern: {message}").replace("{message}", e.message ?: "")
+                    Toast.makeText(activity, msg, Toast.LENGTH_LONG).show()
                 }
             }
         }

app/src/main/java/com/dano/test1/TokenStore.kt

@@ -2,20 +2,32 @@ package com.dano.test1
 
 import android.content.Context
 
+/*
+TokenStore
+ - Kleiner Helper zum Verwalten der Login-Sitzung
+ - Speichert:
+     * das API-Token (KEY_TOKEN),
+     * den Usernamen (KEY_USER),
+     * den Zeitpunkt des Logins in Millisekunden (KEY_LOGIN_TS).
+ - Bietet Lese-/Schreib-Methoden sowie ein clear(), um alles zurückzusetzen.
+
+Hinweis:
+ - Die Daten liegen in einer privaten App-Preference-Datei (PREF = "qdb_prefs").
+ - getLoginTimestamp() eignet sich, um die Token-„Frische“ (Alter) zu berechnen.
+*/
 object TokenStore {
     private const val PREF = "qdb_prefs"
     private const val KEY_TOKEN = "token"
     private const val KEY_USER = "user"
     private const val KEY_LOGIN_TS = "login_ts"
 
-    /** Speichert Token, Username und Login-Timestamp (jetzt) */
     fun save(context: Context, token: String, username: String) {
         val now = System.currentTimeMillis()
         context.getSharedPreferences(PREF, Context.MODE_PRIVATE)
             .edit()
-            .putString(KEY_TOKEN, token)
+            .putString(KEY_TOKEN, token)   // API-/Session-Token
-            .putString(KEY_USER, username)
+            .putString(KEY_USER, username) // angemeldeter Benutzername
-            .putLong(KEY_LOGIN_TS, now)
+            .putLong(KEY_LOGIN_TS, now)    // Zeitpunkt des Logins
             .apply()
     }
 

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

@@ -5,9 +5,14 @@
     android:id="@+id/main"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".MainActivity"
+    tools:context=".MainActivity">
-    tools:layout_editor_absoluteX="11dp"
+
-    tools:layout_editor_absoluteY="107dp">
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/gTop"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        app:layout_constraintGuide_begin="32dp" />
 
     <com.google.android.material.button.MaterialButton
         android:id="@+id/Qprev"
@@ -27,7 +32,6 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintStart_toStartOf="parent" />
 
-    <!-- Weiter -->
     <com.google.android.material.button.MaterialButton
         android:id="@+id/Qnext"
         android:layout_width="@dimen/nav_btn_size"
@@ -46,6 +50,34 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent" />
 
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:textStyle="bold"
+        android:paddingStart="16dp"
+        android:paddingEnd="16dp"
+        app:layout_constraintTop_toBottomOf="@id/gTop"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintWidth_percent="0.9" />
+
+    <TextView
+        android:id="@+id/question"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:textStyle="bold"
+        android:paddingStart="16dp"
+        android:paddingEnd="16dp"
+        android:paddingTop="8dp"
+        android:paddingBottom="8dp"
+        app:layout_constraintTop_toBottomOf="@id/textView"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintWidth_percent="0.9" />
+
     <EditText
         android:id="@+id/client_code"
         android:layout_width="0dp"
@@ -54,7 +86,7 @@
         app:layout_constraintHeight_percent="0.08"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/question"
+        app:layout_constraintTop_toBottomOf="@id/question"
         android:layout_marginTop="16dp"
         android:background="@android:drawable/edit_text"
         android:ems="10"
@@ -90,34 +122,4 @@
         android:autoSizeMaxTextSize="36sp"
         android:autoSizeStepGranularity="2sp" />
 
-    <TextView
-        android:id="@+id/textView"
-        android:layout_width="0dp"
-        android:layout_height="0dp"
-        android:gravity="center"
-        android:textStyle="bold"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHeight_percent="0.15"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.051"
-        app:layout_constraintWidth_percent="0.9" />
-
-    <TextView
-        android:id="@+id/question"
-        android:layout_width="0dp"
-        android:layout_height="0dp"
-        android:gravity="center"
-        android:textStyle="bold"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHeight_percent="0.15"
-        app:layout_constraintHorizontal_bias="0.512"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/textView"
-        app:layout_constraintVertical_bias="0.0"
-        app:layout_constraintWidth_percent="0.9" />
-
-
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -1,39 +1,42 @@
 <?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">
 
-    <!-- Obere Überschrift -->
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/gTop"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        app:layout_constraintGuide_begin="32dp" />
+
     <TextView
         android:id="@+id/textView"
         android:layout_width="0dp"
-        android:layout_height="0dp"
+        android:layout_height="wrap_content"
         android:gravity="center"
         android:textStyle="bold"
-        app:layout_constraintBottom_toBottomOf="parent"
+        android:paddingStart="16dp"
-        app:layout_constraintEnd_toEndOf="parent"
+        android:paddingEnd="16dp"
-        app:layout_constraintHeight_percent="0.15"
+        app:layout_constraintTop_toBottomOf="@id/gTop"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintVertical_bias="0.051"
         app:layout_constraintWidth_percent="0.9" />
 
-    <!-- Frage -->
     <TextView
         android:id="@+id/question"
         android:layout_width="0dp"
-        android:layout_height="0dp"
+        android:layout_height="wrap_content"
         android:gravity="center"
         android:textStyle="bold"
-        app:layout_constraintBottom_toBottomOf="parent"
+        android:paddingStart="16dp"
-        app:layout_constraintEnd_toEndOf="parent"
+        android:paddingEnd="16dp"
-        app:layout_constraintHeight_percent="0.15"
+        android:paddingTop="8dp"
-        app:layout_constraintHorizontal_bias="0.512"
+        android:paddingBottom="8dp"
+        app:layout_constraintTop_toBottomOf="@id/textView"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/textView"
+        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintVertical_bias="0.0"
         app:layout_constraintWidth_percent="0.9" />
 
     <TextView
@@ -129,7 +132,6 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintStart_toStartOf="parent" />
 
-    <!-- Weiter -->
     <com.google.android.material.button.MaterialButton
         android:id="@+id/Qnext"
         android:layout_width="@dimen/nav_btn_size"

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

@@ -1,41 +1,44 @@
 <?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">
 
-    <!-- Titel -->
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/gTop"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        app:layout_constraintGuide_begin="32dp" />
+
     <TextView
         android:id="@+id/textView"
         android:layout_width="0dp"
-        android:layout_height="0dp"
+        android:layout_height="wrap_content"
         android:gravity="center"
         android:textStyle="bold"
-        app:layout_constraintBottom_toBottomOf="parent"
+        android:paddingStart="16dp"
-        app:layout_constraintEnd_toEndOf="parent"
+        android:paddingEnd="16dp"
-        app:layout_constraintHeight_percent="0.15"
+        app:layout_constraintTop_toBottomOf="@id/gTop"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintVertical_bias="0.051"
         app:layout_constraintWidth_percent="0.9" />
 
-    <!-- Leitfrage -->
     <TextView
         android:id="@+id/question"
         android:layout_width="0dp"
-        android:layout_height="0dp"
+        android:layout_height="wrap_content"
         android:gravity="center"
         android:textStyle="bold"
-        app:layout_constraintBottom_toBottomOf="parent"
+        android:paddingStart="16dp"
-        app:layout_constraintEnd_toEndOf="parent"
+        android:paddingEnd="16dp"
-        app:layout_constraintHeight_percent="0.15"
+        android:paddingTop="8dp"
-        app:layout_constraintStart_toStartOf="parent"
+        android:paddingBottom="8dp"
         app:layout_constraintTop_toBottomOf="@id/textView"
-        app:layout_constraintVertical_bias="0.0"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintWidth_percent="0.9" />
 
-    <!-- FIXE ICON-LEISTE (bleibt stehen) -->
     <LinearLayout
         android:id="@+id/glass_header"
         android:layout_width="0dp"
@@ -48,7 +51,6 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintWidth_percent="1" />
 
-    <!-- Scrollbarer Bereich NUR für Symptome + Kreise -->
     <ScrollView
         android:id="@+id/glassScroll"
         android:layout_width="0dp"
@@ -73,15 +75,12 @@
             android:textStyle="bold" />
     </ScrollView>
 
-    <!-- Buttons unten -->
     <com.google.android.material.button.MaterialButton
         android:id="@+id/Qprev"
         android:layout_width="@dimen/nav_btn_size"
         android:layout_height="@dimen/nav_btn_size"
         android:layout_marginStart="20dp"
         android:layout_marginBottom="16dp"
-        android:text=""
-        android:textAllCaps="false"
         app:icon="@drawable/ic_chevron_left"
         app:iconTint="@color/btn_nav_left_icon_tint"
         app:iconSize="@dimen/nav_icon_size"
@@ -92,15 +91,12 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintStart_toStartOf="parent" />
 
-    <!-- Weiter -->
     <com.google.android.material.button.MaterialButton
         android:id="@+id/Qnext"
         android:layout_width="@dimen/nav_btn_size"
         android:layout_height="@dimen/nav_btn_size"
         android:layout_marginEnd="20dp"
         android:layout_marginBottom="16dp"
-        android:text=""
-        android:textAllCaps="false"
         app:icon="@drawable/ic_chevron_right"
         app:iconTint="@color/btn_nav_right_icon_tint"
         app:iconSize="@dimen/nav_icon_size"

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

@@ -5,9 +5,14 @@
     android:id="@+id/main"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".MainActivity"
+    tools:context=".MainActivity">
-    tools:layout_editor_absoluteX="11dp"
+
-    tools:layout_editor_absoluteY="107dp">
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/gTop"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        app:layout_constraintGuide_begin="32dp" />
 
     <com.google.android.material.button.MaterialButton
         android:id="@+id/Qprev"
@@ -27,7 +32,6 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintStart_toStartOf="parent" />
 
-    <!-- Weiter -->
     <com.google.android.material.button.MaterialButton
         android:id="@+id/Qnext"
         android:layout_width="@dimen/nav_btn_size"
@@ -46,7 +50,34 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent" />
 
-    <!-- ScrollView füllt den Raum zwischen Frage und Buttons -->
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:textStyle="bold"
+        android:paddingStart="16dp"
+        android:paddingEnd="16dp"
+        app:layout_constraintTop_toBottomOf="@id/gTop"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintWidth_percent="0.9" />
+
+    <TextView
+        android:id="@+id/question"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:textStyle="bold"
+        android:paddingStart="16dp"
+        android:paddingEnd="16dp"
+        android:paddingTop="8dp"
+        android:paddingBottom="8dp"
+        app:layout_constraintTop_toBottomOf="@id/textView"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintWidth_percent="0.9" />
+
     <ScrollView
         android:id="@+id/scrollView"
         android:layout_width="0dp"
@@ -56,8 +87,8 @@
         android:layout_marginBottom="8dp"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/question"
+        app:layout_constraintTop_toBottomOf="@id/question"
-        app:layout_constraintBottom_toTopOf="@+id/Qnext"
+        app:layout_constraintBottom_toTopOf="@id/Qnext"
         app:layout_constraintWidth_percent="0.9">
 
         <LinearLayout
@@ -68,32 +99,4 @@
             android:padding="16dp" />
     </ScrollView>
 
-    <TextView
-        android:id="@+id/textView"
-        android:layout_width="0dp"
-        android:layout_height="0dp"
-        android:gravity="center"
-        android:textStyle="bold"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHeight_percent="0.15"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.051"
-        app:layout_constraintWidth_percent="0.9" />
-
-    <TextView
-        android:id="@+id/question"
-        android:layout_width="0dp"
-        android:layout_height="0dp"
-        android:gravity="center"
-        android:textStyle="bold"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHeight_percent="0.15"
-        app:layout_constraintHorizontal_bias="0.512"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/textView"
-        app:layout_constraintVertical_bias="0.0"
-        app:layout_constraintWidth_percent="0.9" />
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -5,11 +5,15 @@
     android:id="@+id/main"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".MainActivity"
+    tools:context=".MainActivity">
-    tools:layout_editor_absoluteX="11dp"
+
-    tools:layout_editor_absoluteY="107dp">
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/gTop"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        app:layout_constraintGuide_begin="32dp" />
 
-    <!-- Zurück -->
     <com.google.android.material.button.MaterialButton
         android:id="@+id/Qprev"
         android:layout_width="@dimen/nav_btn_size"
@@ -28,7 +32,6 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintStart_toStartOf="parent" />
 
-    <!-- Weiter -->
     <com.google.android.material.button.MaterialButton
         android:id="@+id/Qnext"
         android:layout_width="@dimen/nav_btn_size"
@@ -47,10 +50,34 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent" />
 
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:textStyle="bold"
+        android:paddingStart="16dp"
+        android:paddingEnd="16dp"
+        app:layout_constraintTop_toBottomOf="@id/gTop"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintWidth_percent="0.9" />
 
+    <TextView
+        android:id="@+id/question"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:textStyle="bold"
+        android:paddingStart="16dp"
+        android:paddingEnd="16dp"
+        android:paddingTop="8dp"
+        android:paddingBottom="8dp"
+        app:layout_constraintTop_toBottomOf="@id/textView"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintWidth_percent="0.9" />
 
-    <!-- SCROLLBEREICH für die Radio-Optionen:
-         füllt den Platz zwischen Frage und Buttons, scrollt bei Bedarf -->
     <ScrollView
         android:id="@+id/radioScroll"
         android:layout_width="0dp"
@@ -65,7 +92,6 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintWidth_percent="0.80">
 
-        <!-- Die RadioGroup bleibt gleich, ist jetzt aber scrollfähig -->
         <RadioGroup
             android:id="@+id/RadioGroup"
             android:layout_width="match_parent"
@@ -74,33 +100,4 @@
             android:padding="8dp" />
     </ScrollView>
 
-    <TextView
-        android:id="@+id/textView"
-        android:layout_width="0dp"
-        android:layout_height="0dp"
-        android:gravity="center"
-        android:textStyle="bold"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHeight_percent="0.15"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:layout_constraintVertical_bias="0.051"
-        app:layout_constraintWidth_percent="0.9" />
-
-    <TextView
-        android:id="@+id/question"
-        android:layout_width="0dp"
-        android:layout_height="0dp"
-        android:gravity="center"
-        android:textStyle="bold"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintHeight_percent="0.15"
-        app:layout_constraintHorizontal_bias="0.512"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/textView"
-        app:layout_constraintVertical_bias="0.0"
-        app:layout_constraintWidth_percent="0.9" />
-
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -5,6 +5,13 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/gTop"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        app:layout_constraintGuide_begin="32dp" />
+
     <Spinner
         android:id="@+id/string_spinner"
         android:layout_width="0dp"
@@ -33,7 +40,6 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintStart_toStartOf="parent" />
 
-    <!-- Weiter -->
     <com.google.android.material.button.MaterialButton
         android:id="@+id/Qnext"
         android:layout_width="@dimen/nav_btn_size"
@@ -55,30 +61,29 @@
     <TextView
         android:id="@+id/textView"
         android:layout_width="0dp"
-        android:layout_height="0dp"
+        android:layout_height="wrap_content"
         android:gravity="center"
         android:textStyle="bold"
-        app:layout_constraintBottom_toBottomOf="parent"
+        android:paddingStart="16dp"
-        app:layout_constraintEnd_toEndOf="parent"
+        android:paddingEnd="16dp"
-        app:layout_constraintHeight_percent="0.15"
+        app:layout_constraintTop_toBottomOf="@id/gTop"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintVertical_bias="0.051"
         app:layout_constraintWidth_percent="0.9" />
 
     <TextView
         android:id="@+id/question"
         android:layout_width="0dp"
-        android:layout_height="0dp"
+        android:layout_height="wrap_content"
         android:gravity="center"
         android:textStyle="bold"
-        app:layout_constraintBottom_toBottomOf="parent"
+        android:paddingStart="16dp"
-        app:layout_constraintEnd_toEndOf="parent"
+        android:paddingEnd="16dp"
-        app:layout_constraintHeight_percent="0.15"
+        android:paddingTop="8dp"
-        app:layout_constraintHorizontal_bias="0.512"
+        android:paddingBottom="8dp"
+        app:layout_constraintTop_toBottomOf="@id/textView"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/textView"
+        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintVertical_bias="0.0"
         app:layout_constraintWidth_percent="0.9" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -5,6 +5,13 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
+    <androidx.constraintlayout.widget.Guideline
+        android:id="@+id/gTop"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        app:layout_constraintGuide_begin="32dp" />
+
     <Spinner
         android:id="@+id/value_spinner"
         android:layout_width="0dp"
@@ -13,7 +20,7 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintHorizontal_bias="0.495"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/question"
+        app:layout_constraintTop_toBottomOf="@id/question"
         app:layout_constraintVertical_bias="0.027"
         app:layout_constraintWidth_percent="0.70" />
 
@@ -35,7 +42,6 @@
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintStart_toStartOf="parent" />
 
-    <!-- Weiter -->
     <com.google.android.material.button.MaterialButton
         android:id="@+id/Qnext"
         android:layout_width="@dimen/nav_btn_size"
@@ -57,31 +63,29 @@
     <TextView
         android:id="@+id/textView"
         android:layout_width="0dp"
-        android:layout_height="0dp"
+        android:layout_height="wrap_content"
         android:gravity="center"
         android:textStyle="bold"
-        app:layout_constraintBottom_toBottomOf="parent"
+        android:paddingStart="16dp"
-        app:layout_constraintEnd_toEndOf="parent"
+        android:paddingEnd="16dp"
-        app:layout_constraintHeight_percent="0.15"
+        app:layout_constraintTop_toBottomOf="@id/gTop"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintVertical_bias="0.051"
         app:layout_constraintWidth_percent="0.9" />
 
     <TextView
         android:id="@+id/question"
         android:layout_width="0dp"
-        android:layout_height="0dp"
+        android:layout_height="wrap_content"
         android:gravity="center"
         android:textStyle="bold"
-        app:layout_constraintBottom_toBottomOf="parent"
+        android:paddingStart="16dp"
-        app:layout_constraintEnd_toEndOf="parent"
+        android:paddingEnd="16dp"
-        app:layout_constraintHeight_percent="0.15"
+        android:paddingTop="8dp"
-        app:layout_constraintHorizontal_bias="0.512"
+        android:paddingBottom="8dp"
+        app:layout_constraintTop_toBottomOf="@id/textView"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/textView"
+        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintVertical_bias="0.0"
         app:layout_constraintWidth_percent="0.9" />
 
-
 </androidx.constraintlayout.widget.ConstraintLayout>