added dwarfs and removed filenameextension

fixes #1
closes #1
resolves #1

.idea/deploymentTargetSelector.xml

@@ -4,6 +4,14 @@
     <selectionStates>
       <SelectionState runConfigName="app">
         <option name="selectionMode" value="DROPDOWN" />
+        <DropdownSelection timestamp="2026-01-24T22:53:27.667021Z">
+          <Target type="DEFAULT_BOOT">
+            <handle>
+              <DeviceId pluginId="PhysicalDevice" identifier="serial=000988cf644b8f" />
+            </handle>
+          </Target>
+        </DropdownSelection>
+        <DialogSelection />
       </SelectionState>
     </selectionStates>
   </component>

app/build.gradle.kts

@@ -58,4 +58,5 @@ dependencies {
     debugImplementation(libs.androidx.compose.ui.tooling)
     debugImplementation(libs.androidx.compose.ui.test.manifest)
     implementation("androidx.appcompat:appcompat:1.7.0")
+    implementation("com.google.android.exoplayer:exoplayer:2.19.1")
 }

app/src/main/AndroidManifest.xml

@@ -8,9 +8,10 @@
         android:supportsRtl="true"
         android:theme="@android:style/Theme.Light.NoTitleBar">
 
-
         <activity android:name=".MainActivity"
-            android:exported="true">
+            android:exported="true"
+            android:configChanges="orientation|screenSize|keyboardHidden"
+            >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>

app/src/main/java/com/example/hairdryer/MainActivity.kt

@@ -2,51 +2,87 @@ package com.example.hairdryer
 
 import android.app.Activity
 import android.graphics.Color
-import android.media.AudioAttributes
-import android.media.SoundPool
+//import android.os.Build
 import android.os.Bundle
 import android.os.Handler
-import android.widget.EditText
-import android.widget.ProgressBar
-import android.widget.TextView
-import kotlin.math.pow
+import android.widget.*
+import android.content.pm.PackageManager
+import java.io.File
 import kotlin.math.max
+import kotlin.math.pow
+
+// 🔥 ExoPlayer Imports
+import com.google.android.exoplayer2.ExoPlayer
+import com.google.android.exoplayer2.MediaItem
+import com.google.android.exoplayer2.Player
 
 class MainActivity : Activity() {
 
-    private lateinit var soundPool: SoundPool
-    private var soundId = 0
-    private var streamId = 0
+    private var player: ExoPlayer? = null
     private val handler = Handler()
+
     private var isPlaying = false
-    private var fadeEnabled = false
+    private var fadeEnabled = true
     private var totalMillis: Long = 0
     private var startTime: Long = 0
+
     private var fadeRunnable: Runnable? = null
     private var countdownRunnable: Runnable? = null
 
+    private var audioFiles: List<File> = emptyList()
+    private var selectedFileIndex = 0
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
 
+//        if (!checkPermissions()) return
+
+        val soundFolder = File(getExternalFilesDir(null), "babysounds")
+        if (!soundFolder.exists()) soundFolder.mkdirs()
+
+        cleanOldSounds(soundFolder, keepFiles = listOf("hairdryer.ogg", "fezforgotten.ogg"))
+
+        copyRawToFiles(R.raw.hairdryer, "hairdryer.ogg", soundFolder)
+        copyRawToFiles(R.raw.fezforgotten, "fezforgotten.ogg", soundFolder)
+        copyRawToFiles(R.raw.feuer, "feuer.ogg", soundFolder)
+        copyRawToFiles(R.raw.dwarfs, "dwarfs.ogg", soundFolder)
+        copyRawToFiles(R.raw.meeresrauschen, "meeresrauschen.ogg", soundFolder)
+        copyRawToFiles(R.raw.regen, "regen.ogg", soundFolder)
+        copyRawToFiles(R.raw.zombi, "zombi.ogg", soundFolder)
+
         val status = findViewById<TextView>(R.id.statusText)
         val input = findViewById<EditText>(R.id.timerInput)
         val fadeToggle = findViewById<TextView>(R.id.fadeToggle)
         val volumeBar = findViewById<ProgressBar>(R.id.volumeBar)
+        val spinner = findViewById<Spinner>(R.id.mp3Spinner)
 
-        val attrs = AudioAttributes.Builder()
-            .setUsage(AudioAttributes.USAGE_MEDIA)
-            .setContentType(AudioAttributes.CONTENT_TYPE_MUSIC)
-            .build()
+        audioFiles = getAudioFilesFromFolder(soundFolder)
+            .sortedWith(compareByDescending<File> { it.name == "hairdryer.ogg" }
+                .thenBy { it.name })
 
-        soundPool = SoundPool.Builder()
-            .setMaxStreams(1)
-            .setAudioAttributes(attrs)
-            .build()
+        val names = audioFiles.map { it.nameWithoutExtension }
 
-        soundId = soundPool.load(this, R.raw.sound, 1)
+        val adapter = ArrayAdapter(this, android.R.layout.simple_spinner_item, names)
+        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
+        spinner.adapter = adapter
+
+        spinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
+            override fun onItemSelected(
+                parent: AdapterView<*>?,
+                view: android.view.View?,
+                position: Int,
+                id: Long
+            ) {
+                selectedFileIndex = position
+                stopSound(status, volumeBar)
+            }
+
+            override fun onNothingSelected(parent: AdapterView<*>?) {}
+        }
+
+        updateUI(status, volumeBar, "Bereit", Color.GREEN, 1f)
 
-        updateUI(status, volumeBar, "Bereit", Color.LTGRAY, 1f)
         fadeToggle.setOnClickListener {
             fadeEnabled = !fadeEnabled
             fadeToggle.text = "Fade-Out: " + if (fadeEnabled) "ON" else "OFF"
@@ -62,21 +98,97 @@ class MainActivity : Activity() {
         }
     }
 
+    // --- RAW -> files ---
+    private fun copyRawToFiles(rawId: Int, fileName: String, folder: File) {
+        if (!folder.exists()) folder.mkdirs()
+        val outFile = File(folder, fileName)
+
+        if (!outFile.exists()) {
+            resources.openRawResource(rawId).use { input ->
+                outFile.outputStream().use { output ->
+                    input.copyTo(output)
+                }
+            }
+        }
+    }
+
+    // --- Alte Sounds löschen ---
+    private fun cleanOldSounds(folder: File, keepFiles: List<String>) {
+        folder.listFiles { file ->
+            file.isFile &&
+                    (file.extension.equals("mp3", true) || file.extension.equals("ogg", true)) &&
+                    file.name !in keepFiles
+        }?.forEach { it.delete() }
+    }
+
+    // --- Audio-Dateien holen ---
+    private fun getAudioFilesFromFolder(folder: File): List<File> {
+        return folder.listFiles { file ->
+            file.isFile &&
+                    (file.extension.equals("mp3", true) || file.extension.equals("ogg", true))
+        }?.toList() ?: emptyList()
+    }
+
+    // --- Permissions
+/*    private fun checkPermissions(): Boolean {
+        val permission = if (Build.VERSION.SDK_INT >= 33)
+            android.Manifest.permission.READ_MEDIA_AUDIO
+        else
+            android.Manifest.permission.READ_EXTERNAL_STORAGE
+
+        return if (checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED) {
+            true
+        } else {
+            requestPermissions(arrayOf(permission), 123)
+            false
+        }
+    }
+*/
+    override fun onRequestPermissionsResult(
+        requestCode: Int,
+        permissions: Array<out String>,
+        grantResults: IntArray
+    ) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+        if (requestCode == 123 &&
+            grantResults.isNotEmpty() &&
+            grantResults[0] == PackageManager.PERMISSION_GRANTED
+        ) {
+            recreate()
+        }
+    }
+
+    // --- START ---
     private fun startSound(minutes: Int, status: TextView, volumeBar: ProgressBar) {
         stopSound(status, volumeBar)
-        streamId = soundPool.play(soundId, 1f, 1f, 1, -1, 1f)
+
+        if (audioFiles.isEmpty()) return
+        val file = audioFiles[selectedFileIndex]
+        if (!file.exists()) return
+
+        player = ExoPlayer.Builder(this).build().apply {
+            val mediaItem = MediaItem.fromUri(file.toURI().toString())
+            setMediaItem(mediaItem)
+
+            repeatMode = Player.REPEAT_MODE_ONE // 🔥 GAPLESS LOOP
+            prepare()
+            play()
+        }
+
         isPlaying = true
         startTime = System.currentTimeMillis()
 
         if (minutes > 0) {
             totalMillis = minutes * 60_000L
             updateCountdown(minutes * 60, status)
-            // Countdown jede Sekunde
+
             countdownRunnable = object : Runnable {
                 override fun run() {
                     val elapsedSec = ((System.currentTimeMillis() - startTime) / 1000).toInt()
                     val remainingSec = max(minutes * 60 - elapsedSec, 0)
+
                     updateCountdown(remainingSec, status)
+
                     if (remainingSec > 0) {
                         handler.postDelayed(this, 1000L)
                     } else {
@@ -86,16 +198,18 @@ class MainActivity : Activity() {
             }
             handler.postDelayed(countdownRunnable!!, 1000L)
 
-            // Fade-Out (optional)
             if (fadeEnabled) {
                 fadeRunnable = object : Runnable {
                     override fun run() {
                         if (!isPlaying) return
+
                         val elapsed = System.currentTimeMillis() - startTime
                         val progress = (elapsed.toFloat() / totalMillis).coerceIn(0f, 1f)
-                        val volume = (1 - progress).pow(2) // exponentielles Fade
-                        soundPool.setVolume(streamId, volume, volume)
+                        val volume = (1 - progress).pow(2)
+
+                        player?.volume = volume
                         volumeBar.progress = (volume * 100).toInt()
+
                         if (progress < 1f) {
                             handler.postDelayed(this, 200L)
                         }
@@ -105,32 +219,38 @@ class MainActivity : Activity() {
             } else {
                 volumeBar.progress = 100
             }
+
         } else {
-            // unendlich
-            updateUI(status, volumeBar, "Läuft: ∞", Color.GREEN, 1f)
+            updateUI(status, volumeBar, "Stopp: ∞", Color.RED, 1f)
             volumeBar.progress = 100
         }
     }
 
+    // --- Countdown ---
     private fun updateCountdown(remainingSec: Int, status: TextView) {
         val minutes = remainingSec / 60
         val seconds = remainingSec % 60
-        status.text = String.format("Läuft: %02d:%02d", minutes, seconds)
-        status.setBackgroundColor(Color.GREEN)
+        status.text = String.format("Stopp: %02d:%02d", minutes, seconds)
+        status.setBackgroundColor(Color.RED)
         status.setTextColor(Color.BLACK)
     }
 
+    // --- STOP ---
     private fun stopSound(status: TextView, volumeBar: ProgressBar) {
         if (isPlaying) {
-            soundPool.stop(streamId)
+            player?.release()
+            player = null
             isPlaying = false
         }
+
         handler.removeCallbacks(countdownRunnable ?: Runnable {})
         handler.removeCallbacks(fadeRunnable ?: Runnable {})
-        updateUI(status, volumeBar, "Gestoppt", Color.RED, 0f)
+
+        updateUI(status, volumeBar, "Start", Color.GREEN, 0f)
         volumeBar.progress = 0
     }
 
+    // --- UI ---
     private fun updateUI(view: TextView, bar: ProgressBar, text: String, color: Int, volume: Float) {
         view.text = text
         view.setBackgroundColor(color)
@@ -140,6 +260,6 @@ class MainActivity : Activity() {
 
     override fun onDestroy() {
         super.onDestroy()
-        soundPool.release()
+        player?.release()
     }
-}
+}

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

@@ -19,9 +19,18 @@
     <Space
         android:layout_width="match_parent"
         android:layout_height="50dp" />
+
+    <Spinner
+        android:id="@+id/mp3Spinner"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"/>
+    <Space
+        android:layout_width="match_parent"
+        android:layout_height="20dp" />
+
     <TextView
         android:id="@+id/statusText"
-        android:text="Bereit"
+        android:text="Start"
         android:textSize="26sp"
         android:gravity="center"
         android:textColor="#000000"
@@ -33,6 +42,7 @@
     <EditText
         android:id="@+id/timerInput"
         android:hint="Sleep Timer (Minuten)"
+        android:text="20"
         android:inputType="number"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
@@ -40,7 +50,7 @@
 
     <TextView
         android:id="@+id/fadeToggle"
-        android:text="Fade-Out: OFF"
+        android:text="Fade-Out: ON"
         android:gravity="center"
         android:padding="12dp"
         android:layout_marginTop="20dp"