OnKeyDown and OnBackPressed Combination
<p>Why do I need to return <code>true</code> in <code>onKeyDown()</code>, to make <code>onBackPressed()</code> work?
It's conflicts with the documentation.</p>

<p><a href="http://developer.android.com/reference/android/app/Activity.html#onKeyDown%28int,%20android.view.KeyEvent%29" rel="nofollow">documentation</a></p>
