How can we hide the rowlist focus(focusBitmapUri) for a particular row "smoothly"

Hi team, I need to hide the rowlist focus(selector or focusBitmapUri) for only a particular row. Lets say, I want the focus to be present for first row, and need to disappear the focus in the second row. I could hide it when the focus reached second row by detecting "if rowItemFocused[0] = 1". But this happened: Focus disappeared reaching row 2 only after the "jumping animation" from row 1 to row 2. That makes the transition weird. I need the focus to disappear from the first row itself soon after the "down" button click. Can anybody help?