请exo播放一个像这样的hls流http://m3ulink.com：7899/gtzca8ugs/po5da7vm07/111804我可以玩这个.m3u8文件扩展名的hls链接，但是我不能玩没有.m3u8文件扩展名的hls链接如果有人能帮忙，我将不胜感激。请我在初学者的水平，所以如果有人能帮我看看这个感谢//代码

import android.content.pm.ActivityInfo;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.ProgressBar;

import androidx.annotation.Nullable;
import androidx.appcompat.app.AppCompatActivity;

import com.google.android.exoplayer2.DefaultLoadControl;
import com.google.android.exoplayer2.ExoPlaybackException;
import com.google.android.exoplayer2.ExoPlayerFactory;
import com.google.android.exoplayer2.LoadControl;
import com.google.android.exoplayer2.PlaybackParameters;
import com.google.android.exoplayer2.Player;
import com.google.android.exoplayer2.SimpleExoPlayer;
import com.google.android.exoplayer2.Timeline;
import com.google.android.exoplayer2.source.MediaSource;
import com.google.android.exoplayer2.source.TrackGroupArray;
import com.google.android.exoplayer2.source.hls.HlsMediaSource;
import com.google.android.exoplayer2.trackselection.AdaptiveTrackSelection;
import com.google.android.exoplayer2.trackselection.DefaultTrackSelector;
import com.google.android.exoplayer2.trackselection.TrackSelection;
import com.google.android.exoplayer2.trackselection.TrackSelectionArray;
import com.google.android.exoplayer2.trackselection.TrackSelector;
import com.google.android.exoplayer2.ui.PlayerView;
import com.google.android.exoplayer2.upstream.DataSource;
import com.google.android.exoplayer2.upstream.DefaultBandwidthMeter;
import com.google.android.exoplayer2.upstream.DefaultDataSourceFactory;

public class VideoPlayerActivity extends AppCompatActivity {

    private PlayerView videoPlayer;
    private SimpleExoPlayer simpleExoPlayer;
    private static final String FILE_URL = "";
    ProgressBar progressBar;
    ImageView btFullScreen;
    boolean flag = false;
    private Handler mainHandler;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        requestWindowFeature(Window.FEATURE_NO_TITLE);

        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_video_player);

        videoPlayer = findViewById(R.id.exo_player);
        progressBar = findViewById(R.id.progress_bar);
        btFullScreen = videoPlayer.findViewById(R.id.bt_fullscreen);
        setUpExoplayer(getIntent().getStringExtra("url"));
        simpleExoPlayer.addListener(new Player.EventListener() {
            @Override
            public void onTimelineChanged(Timeline timeline, @Nullable Object manifest, int reason) {

            }

            @Override
            public void onTracksChanged(TrackGroupArray trackGroups, TrackSelectionArray trackSelections) {

            }

            @Override
            public void onLoadingChanged(boolean isLoading) {

            }

            @Override
            public void onPlayerStateChanged(boolean playWhenReady, int playbackState) {

                if (playbackState == Player.STATE_BUFFERING) {

                    progressBar.setVisibility(View.VISIBLE);

                } else if (playbackState == Player.STATE_READY) {

                    progressBar.setVisibility(View.GONE);

                }
            }

            @Override
            public void onRepeatModeChanged(int repeatMode) {

            }

            @Override
            public void onShuffleModeEnabledChanged(boolean shuffleModeEnabled) {

            }

            @Override
            public void onPlayerError(ExoPlaybackException error) {

            }

            @Override
            public void onPositionDiscontinuity(int reason) {

            }

            @Override
            public void onPlaybackParametersChanged(PlaybackParameters playbackParameters) {

            }

            @Override
            public void onSeekProcessed() {

            }
        });

        btFullScreen.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                if (flag) {

                    btFullScreen.setImageDrawable(getResources().getDrawable(R.drawable.ic_fullscreen));
                    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
                    flag = false;
                } else {

                    btFullScreen.setImageDrawable(getResources().getDrawable(R.drawable.ic_fullscreen_exit));

                    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

                    flag = true;
                }

            }
        });
    }

    private void setUpExoplayer(String url) {
        new DefaultBandwidthMeter();
        TrackSelection.Factory videoTrackSelectionFactory = new
                AdaptiveTrackSelection.Factory();
        TrackSelector trackSelector = new
                DefaultTrackSelector(videoTrackSelectionFactory);

        LoadControl loadControl = new DefaultLoadControl();
        Handler mainHandler = new Handler();

        simpleExoPlayer = ExoPlayerFactory.newSimpleInstance(this, trackSelector, loadControl);
        videoPlayer.setPlayer(simpleExoPlayer);
        DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(this,"");
        MediaSource mediaSource = new HlsMediaSource.Factory(dataSourceFactory).createMediaSource(Uri.parse(url),mainHandler,null );

        videoPlayer.setKeepScreenOn(true);
        simpleExoPlayer.prepare(mediaSource);
        simpleExoPlayer.setPlayWhenReady(true);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        simpleExoPlayer.release();

    }
    @Override
    protected void onPause() {
        super.onPause();
        simpleExoPlayer.setPlayWhenReady(true);
        simpleExoPlayer.getPlaybackState();
    }

    @Override
    protected void onRestart() {
        super.onRestart();
        simpleExoPlayer.setPlayWhenReady(true);
        simpleExoPlayer.getPlaybackState();
    }

}