AudioLoopBoundService

AudioLoopBoundService.kt

import android.app.Service
import android.content.Intent
import android.media.MediaPlayer
import android.os.Binder
import android.os.IBinder
import com.alokomkar.javacollections.R

class AudioLoopBoundService: Service() {

    private val binder: AudioLoopServiceBinder by lazy {
        AudioLoopServiceBinder()
    }

    private var mediaPlayer: MediaPlayer? = null

    override fun onBind(intent: Intent?): IBinder {
        return binder
    }

    fun runAction(action: ServiceAction) {
        when(action) {
            ServiceAction.START_ACTION -> startPlayback()
            ServiceAction.STOP_ACTION -> stopPlayback()
        }
    }

    private fun startPlayback() {
        initializePlayer()
        mediaPlayer?.apply {
            isLooping = true
            start()
        }
    }

    private fun stopPlayback() = mediaPlayer?.stop()

    private fun initializePlayer() {
        mediaPlayer = MediaPlayer.create(this, R.raw.sample_audio)
    }

    inner class AudioLoopServiceBinder: Binder() {
        fun getService(): AudioLoopBoundService = this@AudioLoopBoundService
    }
}