A simple preparation for exoplayer

PreparePlayer.kt

    //Build MediaSource for one video and prepare player
    private fun preparePlayer(uri: Uri){
        val mediaSource = MediaSourceBuilder().build(uri)
        player?.prepare(mediaSource, true, false)
    }

    //Overloaded function to build MediaSource for whole playlist and prepare player
    private fun preparePlayer(uriList: Array<Uri>){
        val mediaSource = MediaSourceBuilder().build(uriList)
        player?.prepare(mediaSource, true, false)
    }