What is the Slideshow program for Android, or how to make a photo frame?

Question

Android

Good afternoon. It is necessary to implement a photo frame on Android so that the user only needs to turn on the power.
In fact, you need to put a launcher that will launch this application at system startup, this is not a problem. I just can’t find a suitable application that immediately upon launch starts showing photos with smooth transitions from the device’s memory.

Answer 1

Here is a good example