public void onWindowFocusChanged(boolean hasFocus) {
		super.onWindowFocusChanged(hasFocus);
                ViewTreeObserver vto = view.getViewTreeObserver();
		vto.addOnGlobalLayoutListener(new OnGlobalLayoutListener() {
			public void onGlobalLayout() {
				ThemeHelper.SetPosition(ev, view, (numBtn == -1 ? true : false));

				ViewTreeObserver obs = view.getViewTreeObserver();
				obs.removeGlobalOnLayoutListener(this);
			}
		});
}