How to make exoplayer to adaptively changing quality?

Question

I want make ExoPlayer if the internet speed is good to play high resolution vice versa to play in low resolution. I also used bandwitmether with default or custom initial bandwith estimate and AdaptiveTrackSelection.Factory. How can fix it to play only specified internet quality, because defaultBandwithmeter gives false bitrate. Thanks in advance

  val trackSelector : DefaultTrackSelector = DefaultTrackSelector(context

    ).apply {
        setParameters(buildUponParameters().setAllowMultipleAdaptiveSelections(true).setForceHighestSupportedBitrate(false).setForceLowestBitrate(false))
    }


    private val simpleCache: SimpleCache = MyApp.simpleCache


    val loadControl: LoadControl = DefaultLoadControl.Builder()
        .setAllocator(DefaultAllocator(true, 16))
        .setBufferDurationsMs(
            MIN_BUFFER_DURATION,
            MAX_BUFFER_DURATION,
            MIN_PLAYBACK_START_BUFFER,
            MIN_PLAYBACK_RESUME_BUFFER
        )

        .build()




    init {





        val b2 = context.resources.configuration.locale.country

        Log.e("vag", b2.toString())

        httpDataSourceFactory = DefaultHttpDataSource.Factory()
            .setAllowCrossProtocolRedirects(true)

        defaultDataSourceFactory = DefaultDataSource.Factory(
            context, httpDataSourceFactory
        )
        cacheDataSourceFactory = CacheDataSource.Factory()
            .setCache(simpleCache)


            .setUpstreamDataSourceFactory(httpDataSourceFactory)
            .setFlags(CacheDataSource.FLAG_IGNORE_CACHE_ON_ERROR)


        bindingVideos.masterExoPlayer.setResizeMode(AspectRatioFrameLayout.RESIZE_MODE_ZOOM);

        currentExoPlayer = ExoPlayer.Builder(context).setLoadControl(loadControl).setTrackSelector(trackSelector)
            .build()
        bindingVideos.masterExoPlayer.player = currentExoPlayer



    }