view same object when switching between layouts in flex4
<s:List id="list" width="100%" height="100%" dataProvider="{ recordingsShown }"
            itemRenderer.CoverflowState="components.VideoItemRenderer"
            itemRenderer.TileState="components.VideoItemRenderer2"
            selectedIndex="0">

 <s:layout.CoverflowState>
   <Layouts:CoverflowLayout id="coverflow" selectedIndex="{ list.selectedIndex }"
                                     horizontalDistance="103" selectedItemProximity="75"
                                     depthDistance="1" elementRotation="-70" focalLength="300"
                                     perspectiveProjectionX="-1" perspectiveProjectionY="-1"/>
 </s:layout.CoverflowState>

 <s:layout.TileState>

 <s:TileLayout orientation="columns" columnAlign="justifyUsingWidth" rowAlign="justifyUsingHeight"
                          requestedColumnCount="-1"
                          requestedRowCount="-1"
                          paddingBottom="5" paddingLeft="5" paddingRight="5" paddingTop="5"
                          verticalGap="10" horizontalGap="10"/>

 </s:layout.TileState>
</s:List>