title: How to remove Black background between start new activity during slide_left animation?
body: <p>When I call new activity by animation the background gets black.<br />
  How can I remove remove the black background?</p>
  <p>For the animation I'm using:</p>
  <pre><code>getWindow().setBackgroundDrawableResource(R.drawable.mainbg_); 
  overridePendingTransition (R.anim.push_up_in,0);
  </code></pre>