title: Full screen Videoview doesn't hide menu bar during rotation
body: <p>I'm working on a youtube / rtmp live video app using videoview and samples codes from all over the net so fall i have the app working but I'm facing a problem when i change orientation the live video rotates and expands fine but it doesn't go to a complete full screen, how can i setup a way to go to a complete full screen only when I go into landscape mode?</p>
  
  <p>my main activity.</p>
  
  <pre><code>    progressdialog = ProgressDialog.show(this, "", " Cargando vídeo por favor espere...", true);
      progressdialog.setCancelable(true);
  
      final VideoView vidView = (VideoView)findViewById(R.id.video_view);
      String vidAddress = "http://videourl/playlist.m3u8";
      Uri vidUri = Uri.parse(vidAddress);
  
      vidView.setVideoURI(vidUri); 
  
      MediaController vidControl = new MediaController(this);
      vidControl.setAnchorView(vidView);
      vidView.setMediaController(vidControl);
  
      vidView.setOnPreparedListener(new OnPreparedListener() {
  
          public void onPrepared(MediaPlayer arg0) {
              progressdialog.dismiss();
             vidView.start();
  
  
          }
      });
  </code></pre>
  
  <p>main xml</p>
  
  <pre><code>&lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:background="@color/white" &gt;
  
  &lt;GridView
      android:id="@+id/list_playlist"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:layout_alignParentBottom="true"
      android:layout_alignParentRight="true"
      android:layout_below="@+id/video_view"
      android:layout_margin="5sp"
      android:gravity="center"
      android:numColumns="2"
      android:scrollbars="none" &gt;
  
  &lt;/GridView&gt;
  
  &lt;RelativeLayout
      android:id="@+id/layout_ad"
      android:layout_width="match_parent"
      android:layout_height="50sp"
      android:layout_alignParentBottom="true"
      android:gravity="center_horizontal" &gt;
  &lt;/RelativeLayout&gt;
  
  &lt;VideoView
      android:id="@+id/video_view"
      android:layout_width="fill_parent"
      android:layout_height="fill_parent"
      android:layout_alignParentLeft="true"
      android:layout_alignParentRight="true"
      android:layout_alignParentTop="true"/&gt;
  </code></pre>
  
  <p></p>
  
  <p><img src="https://i.stack.imgur.com/9PpHa.jpg" alt="vertical">
  <img src="https://i.stack.imgur.com/N2nGs.png" alt="horizontal"></p>