Android :: Class Cast Exception When Inflating A Custom Relative Layout

I get this exception when I try to inflate

07-22 19:15:39.903: ERROR/AndroidRuntime(3810): Caused by: java.lang.ClassCastException: android.widget.RelativeLayout

I have a base class:

public class UIBase extends RelativeLayout {}

And a more specific class:

public class Countdown extends UIBase {}

Then I try to inflate and it exceptions:

UIBase newView = (UIBase) inflater.inflate(layoutId, parent, true);

Here's the XML file:

CODE:..................