Files
android-hairdryer/app/src/main/java/com/example/hairdryer/MainActivity.kt
T

266 lines
8.9 KiB
Kotlin

package com.example.hairdryer
import android.app.Activity
import android.graphics.Color
//import android.os.Build
import android.os.Bundle
import android.os.Handler
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 var player: ExoPlayer? = null
private val handler = Handler()
private var isPlaying = 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)
copyRawToFiles(R.raw.zombi_refrain, "zombi-refrain.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)
audioFiles = getAudioFilesFromFolder(soundFolder)
.sortedWith(compareByDescending<File> { it.name == "hairdryer.ogg" }
.thenBy { it.name })
val names = audioFiles.map { it.nameWithoutExtension }
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)
fadeToggle.setOnClickListener {
fadeEnabled = !fadeEnabled
fadeToggle.text = "Fade-Out: " + if (fadeEnabled) "ON" else "OFF"
}
status.setOnClickListener {
if (isPlaying) {
stopSound(status, volumeBar)
} else {
val minutes = input.text.toString().toIntOrNull() ?: 0
startSound(minutes, status, volumeBar)
}
}
}
// --- 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)
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)
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 {
stopSound(status, volumeBar)
}
}
}
handler.postDelayed(countdownRunnable!!, 1000L)
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)
player?.volume = volume
volumeBar.progress = (volume * 100).toInt()
if (progress < 1f) {
handler.postDelayed(this, 200L)
}
}
}
handler.postDelayed(fadeRunnable!!, 200L)
} else {
volumeBar.progress = 100
}
} else {
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("Stopp: %02d:%02d", minutes, seconds)
status.setBackgroundColor(Color.RED)
status.setTextColor(Color.BLACK)
}
// --- STOP ---
private fun stopSound(status: TextView, volumeBar: ProgressBar) {
if (isPlaying) {
player?.release()
player = null
isPlaying = false
}
handler.removeCallbacks(countdownRunnable ?: Runnable {})
handler.removeCallbacks(fadeRunnable ?: Runnable {})
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)
view.setTextColor(Color.BLACK)
bar.progress = (volume * 100).toInt()
}
override fun onDestroy() {
super.onDestroy()
player?.release()
}
}