我如何将服务器中的歌曲转换为 res/raw 或 Asset 并使其离线可用

如何解决我如何将服务器中的歌曲转换为 res/raw 或 Asset 并使其离线可用

我是 kotlin 编程的新手。我想构建一个 音乐播放器应用，它在第一次安装时有 0 首零首歌曲。它会从服务器获取歌曲一次，当它的名字被点击回收器视图时，它会离线可用。因为它会很重，我添加了资源中的所有歌曲/raw 目录。我的用户没有稳定的互联网，因此流式传输音频是不可能的。

我目前正在使用 Gson 和 Okhttp 从服务器获取歌曲列表。很抱歉，我是 android 开发的新手，任何有关如何进行开发的帮助将不胜感激。

这是我的 Recycler 视图片段的代码

package spidertech.com.gmic

导入 kotlinx.android.synthetic.main.fragment_huduba_player.*

        class HudubaPlayer : Fragment() {
            private var status = "boy"
            var inMediaPlayer: Int = 1
            private lateinit var mediaPlayer: MediaPlayer
            private var totalTime: Int = 0
            override fun onCreateView(
            inflater: LayoutInflater,container: ViewGroup?,savedInstanceState: Bundle?
           ): View? {
      
          return inflater.inflate(R.layout.fragment_huduba_player,container,false)
        }

override fun onViewCreated(view: View,savedInstanceState: Bundle?) {
    super.onViewCreated(view,savedInstanceState)

    mediaPlayer = MediaPlayer.create(context,R.raw.music)
    mediaPlayer.isLooping = false
    totalTime = mediaPlayer.duration

    seekBar.max = totalTime

    seekBar.setonSeekBarchangelistener(
        object : SeekBar.OnSeekBarchangelistener {

            override fun onProgressChanged(
                seekBar: SeekBar?,progress: Int,fromUser: Boolean
            ) {
                if (fromUser) {
                    mediaPlayer.seekTo(progress)
                }
            }

            override fun onStartTrackingTouch(seekBar: SeekBar?) {
            }

            override fun onStopTrackingTouch(seekBar: SeekBar?) {
            }
        }
    )


    prevBtn.setonClickListener {
        Toast.makeText(context,"yap clicked",Toast.LENGTH_SHORT).show()
        inMediaPlayer = 0
    }
    playBtn.setonClickListener {
        if (inMediaPlayer == 0) {
            Toast.makeText(context,"IN = $inMediaPlayer ",Toast.LENGTH_SHORT).show()
            inMediaPlayer = 1
        }

        if (!mediaPlayer.isPlaying) {
            mediaPlayer.start()
            updateElaspseTime()
            status = "playing"
            playBtn.setBackgroundResource(R.drawable.ic_baseline_pause_circle_filled_24)
        } else {
            mediaPlayer.pause()
            status = "pause"
            playBtn.setBackgroundResource(R.drawable.ic_baseline_play_circle_filled_24)
        }
    }
}

fun updateElaspseTime() {
    Thread(Runnable {
        try {
            while (inMediaPlayer == 1) {
                val msg = Message()
                msg.what = mediaPlayer.currentPosition
                handler.sendMessage(msg)
                Thread.sleep(1000)
            }
        } catch (e: InterruptedException) {

        }
    }
    ).start()
}

@SuppressLint("HandlerLeak")
var handler = object : Handler() {
    override fun handleMessage(msg: Message) {
        val currentPosition = msg.what
        seekBar.progress = currentPosition

        val elepseTime = createTiMetable(currentPosition)
        val remainingTime = createTiMetable(totalTime - currentPosition)
        elapsedtimeTxt.text = elepseTime
        timeRemainTxt.text = "-$remainingTime"

    }
}

private fun createTiMetable(currentPosition: Int): String {
    var timeLabel = ""
    val min = currentPosition / 1000 / 60
    val sec = currentPosition / 1000 % 60

    timeLabel = "$min:"
    if (sec < 10) {
        timeLabel += "0"
    }
    timeLabel += sec
    return timeLabel
}

override fun onPause() {
    if (mediaPlayer.isPlaying) {
        mediaPlayer.pause()
        inMediaPlayer = 0
        seekBar.progress = 0
    }
    super.onPause()
}

override fun onResume() {
    if (status == "playing") {
        mediaPlayer.start()
        inMediaPlayer = 1
        updateElaspseTime()
    }
    super.onResume()
}}