单击屏幕菜单以外的其他位置时，UIMenuController会消失

I'm working with the UIMenuController and it disappears when the screen is clicked. When I show the menu I need to wait for the user to select an item before the menu fades away but if the click anywhere on the screen (not on the menu bar) the menu will still fade out. Is there any way to prevent this?I'm working with the UIMenuController and it di