title: VideoView getDrawingCache is returning black
body: <p>So I'm trying to do a screen shot of a VideoView. I figured the easiest way would be:</p>
  
  <pre><code>videoView.setDrawingCacheEnabled(true);
  </code></pre>
  
  <p>Then when I need to take a screenshot:</p>
  
  <pre><code>Bitmap screenshot = videoView.getDrawingCache();
  </code></pre>
  
  <p>But for some reason the bitmap I get back is just black every time. Anyone had any success with this? I also tried:</p>
  
  <pre><code>Bitmap bitmap = Bitmap.createBitmap(videoView.getWidth(), videoView.getHeight(), Bitmap.Config.ARGB_8888);
  Canvas canvas = new Canvas(bitmap);
  videoView.draw(canvas);
  </code></pre>
  
  <p>But once again, this returns me a black image. I can see that the VideoView is hardly even documented in the Android javadocs. Any help?</p>