PlayActivity.kt

class PlayActivity : AppCompatActivity() {

  private lateinit var player: MusicPlayer

  // Created by Hilt when annotating the activity with @AndroidEntryPoint
  private lateinit var container: PlayActivityContainer


  override fun onCreate(savedInstanceState: Bundle) {

    // @AndroidEntryPoint also creates and populates fields for you
    container = PlayActivityContainer()
    player = container.provideMusicPlayer()

    super.onCreate(bundle)
    player.play("YHLQMDLG")
  }
}