title: YouTube player android Api doesn't hide progressbar when playing
body: <p>I use YouTube Player android Api to play some videos,Now I can seccess to play video ,but I found one problem is that the player doesn't hide progressbar when playing.You can see that in this picture:
   <a href="https://i.stack.imgur.com/v4zSf.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/v4zSf.jpg" alt="enter image description here"></a>
  Actually the player is playing.
  I found one usege thing:when I use YouTube in lower version such as 10.36.52,it works!But now I install the newest YoutuBe version(11.29.55),it donse't work.
  And this is my code:
  player xml:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:orientation="vertical"
      android:focusable="true" &gt;
      &lt;com.google.android.youtube.player.YouTubePlayerView
          android:id="@+id/youtube_player_view"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"/&gt;
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>java code </p>
  
  <pre><code>private void initYouTubePlayerView() {
      YouTubePlayerView playerView = (YouTubePlayerView) findViewById(R.id.youtube_player_view);
      playerView.initialize(YoutubeConnector.KEY,this);
  }
  
  @Override
  public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer player,
                                      boolean restored) {
      if (player == null) return;
      PlayerActivity.this.mPlayer = player;
      mPlayer.setPlayerStyle(YouTubePlayer.PlayerStyle.CHROMELESS);
      if(!restored) {
          player.loadVideo(getIntent().getStringExtra("VIDEO_ID"));
          Log.d(TAG, "onInitializationSuccess: " + getIntent().getStringExtra("VIDEO_ID"));
      }
      mPlayer.setPlaybackEventListener(new PlaybackEventListener());
      mPlayer.setPlayerStateChangeListener(new PlayerStateChangeListener());
  }
  </code></pre>
  
  <p>And the YouTube Api version is newest.</p>