Android - read active wallpaper

I am building an app that makes mass changes to Android phone configuration and saves the current setti开发者_开发问答ngs. I am trying to find a way to read what is the current wallpaper in use; I'd like to replace it with no wallpaper ( wallpaperManager.clear(); ) and then restore the previous wallpaper.

you'll be looking at WallpaperManager.getWallpaperInfo()