Lifecycle handler for Exoplayer

ExoPlayerLifecycleHandlerRegion.kt

    private fun saveState(){
        if (player != null) {
            playbackPosition = player?.currentPosition ?: 0L
            currentWindowIndex = player?.currentWindowIndex ?: 0
            playWhenReady = player?.playWhenReady ?: true
        }
    }

    private fun loadState(){
        player?.apply {
            playWhenReady = playWhenReady
            seekTo(currentWindowIndex, playbackPosition)
        }
    }

    private fun releasePlayer() {
        if (player != null) {
            saveState()
            player?.release()
            player = null
        }
    }
    //region Handle Lifecycle
    fun start() {
        player?.playWhenReady = true
        player?.playbackState
        currUri?: play(currUri)
        currUriList?: play(currUriList)
    }

    fun resume(){
        player?.playWhenReady = true
        currUri?: play(currUri)
        currUriList?: play(currUriList)
        loadState()
    }

    fun pause() {
        player?.playWhenReady = false
        player?.playbackState
        saveState()
    }

    fun stop(){
        releasePlayer()
        player?.stop(true)
    }
    //endregion