Scroll View in Android shows up when I scroll it

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http://stackoverflow.com – I have a Scroll-view layout, which is, say my main menu, when user clicks on an item I want to make my menu disappear, and show the contents that user wants! everything works fine, I use this code: mainMenulay.setVisibility(View.Gone); but, when I touch the screen, and swipe the screen (like scrolling when it was actually visible), where the main menu was located, the scroll-View show up in an unwanted buggy way ! its not functional, but it shows up ! I have fixed this issue with Z Order and defined a background and have brought it in front of the Main Menu and it wont show up, but I'm cur (HowTos)