title: Android custom ListView with ImageButton is not getting focus
body: <p>I am developing an app for android TV. I have a <code>listview</code> with an <code>ImageButton</code> + <code>Textview</code>s as children. As TV does not take touch events but uses D-PAD or trackball remote I have to get focus on all clickable items so that user knows where the focus is. But the problem is I can get focus on list row if I add</p>
  
  <p><code>android:descendantFocusability="blocksDescendants"</code> </p>
  
  <p>in the custom list row layout but <code>ImageButton</code> in the list row will not get focus. 
  And if I remove above code then <code>ImageButton</code> gets focus but I can't click list row. </p>
  
  <p>Also I added <a href="http://developer.android.com/reference/android/widget/ListView.html#setItemsCanFocus%28boolean%29"><code>setItemsCanFocus</code></a> for my <code>ListView</code> but no luck, nothing changed.
  I read many documents but i could not find a proper answer for this problem. I want focus on both List row as well as <code>ImageButton</code>. Is it possible, if any one knows please help me...</p>