GLW takes pictures from your device's gallery and displays them on your device's background. It automatically scrolls pictures and fades from one picture to the next.
You can use the Preview activity to preview and set the wallpaper.
You can use the Settings activity to choose which pictures to use, set the wallpaper brightness, set the scroll speed, and set the length of time between picture changes.
GLW is free, and it has no ads.
Source code is available. If you want it just ask.
fix possible provider security problem