play sort audio android kotlin

To play and sort audio in Android using Kotlin, you can follow these steps:

1. Add the necessary permissions to your AndroidManifest.xml file:
2. <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> to read audio files from external storage.

3. <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> to write sorted audio files to external storage.

4. Create a class to handle audio playback. This class should have methods to start, pause, and stop the audio playback. You can use the MediaPlayer class for this purpose. Here's an example:

import android.media.MediaPlayer

class AudioPlayer {
    private var mediaPlayer: MediaPlayer? = null

    fun startAudio(audioPath: String) {
        mediaPlayer?.reset()
        mediaPlayer = MediaPlayer().apply {
            setDataSource(audioPath)
            prepare()
            start()
        }
    }

    fun pauseAudio() {
        mediaPlayer?.pause()
    }

    fun stopAudio() {
        mediaPlayer?.stop()
        mediaPlayer?.release()
        mediaPlayer = null
    }
}

1. Get a list of audio files from the device's storage. You can use the MediaStore.Audio.Media class to query the audio files. Here's an example:

import android.content.Context
import android.provider.MediaStore

fun getAudioFiles(context: Context): List<String> {
    val audioFiles = mutableListOf<String>()
    val projection = arrayOf(MediaStore.Audio.Media.DATA)
    val cursor = context.contentResolver.query(
        MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
        projection,
        null,
        null,
        null
    )
    cursor?.use {
        val columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DATA)
        while (cursor.moveToNext()) {
            val audioPath = cursor.getString(columnIndex)
            audioFiles.add(audioPath)
        }
    }
    return audioFiles
}

1. Sort the list of audio files. You can use the Collections.sort() method to sort the list. Here's an example:

fun sortAudioFiles(audioFiles: List<String>): List<String> {
    return audioFiles.sorted()
}

1. Finally, use the AudioPlayer class to play the sorted audio files. You can iterate over the sorted list and play each audio file one by one. Here's an example:

val audioPlayer = AudioPlayer()
val sortedAudioFiles = sortAudioFiles(getAudioFiles(context))
for (audioFile in sortedAudioFiles) {
    audioPlayer.startAudio(audioFile)
    // Do any additional processing or wait for audio playback to finish
}

Remember to handle any exceptions that may occur during audio playback or file sorting, and also to release the media player resources properly when no longer needed.