ExoPlayer resume on same position on rotate screen

Question

I am using ExoPlayer in my activity,What i want is to smoothly play video in portrait and landscape mode.For this purpose what I am doing is in onpause I save the c

Answer 1

I also wasted quite a lot time in this. Take a look at it EXO PLAYER 2.11.2

    implementation 'com.google.android.exoplayer:exoplayer:2.11.2'

STEP - 1 Make an activity in which string url is passed as intent.

  public class VideoPlayerActivity extends Activity {

  public static final String sURL_KEY = "STREAMING_URL_KEY";
  public static final String sTOAST_TEXT = "Unable to stream, no media found";
  static final String LOADING = "PLAYER_LOADING";
  static final String STOPPED = "PLAYER_STOPPED";
  static final String PAUSED = "PLAYER_PAUSED";
  static final String PLAYING = "PLAYER_PLAYING";
  static final String IDLE = "PLAYER_IDLE";
  private static final String TAG = "StreamMediaActivity";
  int orientation;
  private Uri streamUrl;
  private SimpleExoPlayer mPlayer;
  private PlayerView playerView;
  private ProgressBar progressBar;
  private String mPlayerStatus;
  private long mPlaybackPosition = 0L;
  private boolean mIsPlayWhenReady = true;
  private int mCurrentWindow = 0;
  private Display display;
  private String STATE_RESUME_WINDOW = "resumeWindow";
  private String STATE_RESUME_POSITION = "resumePosition";
  private String STATE_PLAYER_FULLSCREEN = "playerFullscreen";
  private boolean mExoPlayerFullscreen = false;

  @Override
  protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    fullScreen();
    display = ((WindowManager) getSystemService(WINDOW_SERVICE)).getDefaultDisplay();
    orientation = display.getRotation();
    setContentView(R.layout.activity_video_player);
    playerView = findViewById(R.id.player_view);
    progressBar = findViewById(R.id.progressBar_player);

// Pass a string uri to this class
    String urlString = getIntent().getStringExtra(sURL_KEY);
    if (urlString != null) {
      streamUrl = Uri.parse(urlString);
    } else {
      Toast.makeText(this, sTOAST_TEXT, Toast.LENGTH_LONG).show();
      finish();
    }
  }

  @Override
  protected void onStart() {
    super.onStart();
    initPlayer();
  }

  @Override
  protected void onResume() {
    super.onResume();
    if (mPlaybackPosition != 0L && mPlayer != null) {
      mPlayer.seekTo(mCurrentWindow, mPlaybackPosition);
    }
  }

  @Override
  protected void onStop() {
    super.onStop();
  }

  @Override protected void onPause() {
    super.onPause();
    releasePlayer();
  }



    private void initPlayer() {
        // ESTABLISH THE DATA SOURCE FROM URL
    // here i'm playing local video file that's
 // why using the DefaultDataSourceFactory but you 
//may use DefaultHttpDataSourceFactory to stream 
//online videos 
        DataSource.Factory dataSourceFactory =
            new DefaultDataSourceFactory(this, Util.getUserAgent(this, getApplicationInfo().name));

    MediaSource mediaSource =
        new ProgressiveMediaSource.Factory(dataSourceFactory).createMediaSource(
            streamUrl);


    // CREATE A NEW INSTANCE OF EXO PLAYER
    if (mPlayer == null) {
      mPlayer = new SimpleExoPlayer.Builder(this, new DefaultRenderersFactory(this)).build();
      playerView.setPlayer(mPlayer);
      progressBar.setVisibility(View.VISIBLE);
    }
    mPlayer.setPlayWhenReady(mIsPlayWhenReady);
    mPlayer.seekTo(mCurrentWindow, mPlaybackPosition);

    // PREPARE MEDIA PLAYER
    mPlayer.prepare(mediaSource, true, false);
    mPlayer.addListener(new Player.EventListener() {
      @Override
      public void onPlayerStateChanged(boolean playWhenReady, int playbackState) {
        switch (playbackState) {
          case Player.STATE_BUFFERING:
            mPlayerStatus = LOADING;
            runOnUiThread(() -> progressBar.setVisibility(View.VISIBLE));
            break;
          case Player.STATE_ENDED:
            mPlayerStatus = STOPPED;
            break;
          case Player.STATE_READY:
            mPlayerStatus = (playWhenReady) ? PLAYING : PAUSED;
            runOnUiThread(() -> progressBar.setVisibility(View.INVISIBLE));
            break;
          default:
            mPlayerStatus = IDLE;
            break;
        }
      }

      @Override
      public void onPlayerError(ExoPlaybackException error) {
        Toast.makeText(VideoPlayerActivity.this, "Something went wrong", Toast.LENGTH_SHORT).show();
        finish();
      }
    });
  }

  @Override protected void onSaveInstanceState(Bundle outState) {
    mExoPlayerFullscreen = !mExoPlayerFullscreen;
    super.onSaveInstanceState(outState);
    outState.putInt(STATE_RESUME_WINDOW, mCurrentWindow);
    outState.putLong(STATE_RESUME_POSITION, mPlaybackPosition);
    outState.putBoolean(STATE_PLAYER_FULLSCREEN, mExoPlayerFullscreen);
    super.onSaveInstanceState(outState);
  }

  public void fullScreen() {
    View decorView = getWindow().getDecorView();
    decorView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN);
  }

  private void releasePlayer() {
    if (mPlayer != null) {
      mPlayer.stop();
      mPlaybackPosition = mPlayer.getCurrentPosition();
      mCurrentWindow = mPlayer.getCurrentWindowIndex();
      mIsPlayWhenReady = mPlayer.getPlayWhenReady();
      playerView.setPlayer(null);
      mPlayer.release();
      mPlayer = null;
    }
  }
}

Step 2 : Make the XML layout

STEP 3: start VideoPlayerActivity using intent from another activity

Intent streamVideoIntent = new Intent(context, VideoPlayerActivity.class);
                        streamVideoIntent.putExtra(sURL_KEY, stringUrl);
                        context.startActivity(streamVideoIntent);

STEP 4 : Lastly add activity to manifest