title: show the MediaController
body: <p>Is there a way I can have the <code>MediaController</code> show always?</p>
  
  <pre><code>  videoView = (VideoView) findViewById(R.id.videoView);
    String path = "/sdcard/feiyang/video/sfqx.3GP";
    MediaController m = new MediaController(this);
    videoView.setMediaController(m);
    videoView.setVideoPath(path);
    videoView.start();
  </code></pre>
  
  <p>I'm using <code>m.show(0);</code>, but it doesn't work.</p>