Fixed Live Wallpaper crash on Android 2.2

Maybe not only on 2.2, but i have 2 "engines" on HTC Hero with 2.2.1 and have a crash because view is not initialized, because can't be initialized if have more than 1 engine (see line 331).
So, i think it's just typo.
Merge pull request #344 from semtiko/patch-1

Fixed Live Wallpaper crash on Android 2.2