             addChild(tabBar);
             
             tabBar.dataProvider = hostComponent;
+            
+            defaultPushTransition = new SlideViewTransition(300, SlideViewTransition.SLIDE_LEFT);
+            defaultPopTransition = new SlideViewTransition(300, SlideViewTransition.SLIDE_RIGHT);
         }
         
         /**

        //
        //--------------------------------------------------------------------------
        public var hostComponent:ViewNavigator;
        public var contentGroup:Group;
        public var actionBar:ActionBar;
        public var tabBar:ButtonBar;
        
        //--------------------------------------------------------------------------
        //

    import spark.components.ButtonBar;
    import spark.components.Group;
    import spark.components.ViewNavigator;
    import spark.effects.IViewTransition;
    import spark.effects.SlideViewTransition;
    
    public class ViewNavigatorSkin extends SliderSkin
    {
