live wallpaper - detecting touches when navigation menu is open
<p>I have a live wallpaper which responds to touch and swipe/move events.</p>

<p>If I press the applications button on my phone, I get a menu with all my installed apps. My problem is that when I scroll through my list of installed applications, it triggers the touch and move events on my - out of sight - wallpaper beneath. The wallpaper is still hogging resources drawing and updating anyway, and while scrolling through my installed apps, it can become slightly sluggish.</p>

<p>I was wondering if there was a way to determine if either: the menu is open, or preferably - whether or not the livewallpaper is <em>actually</em> visible or not. </p>

<p>EDIT - I can only think to listen for <code>ACTION_MOVE</code> events in WallpaperEngine. If you detect one without <code>onOffsetChanged</code> being called then you can assume the menu is open and disable touch events. </p>
