Where can I find an analogue of Lock Screen like samsung touchwiz or similar ones?

Question

Android

It is necessary to implement a screen lock in the program, preferably with a transparent picture so that you can see what is happening under it.
I liked the lock on Samsung, just move the picture to unlock the screen.
I didn’t find any examples on the network, all that is needed is to display some kind of picture on top of MainActivity so that the buttons are not pressed
and to unlock it, simply move it in any direction.
Here is another example of what I need, when you run this program, to unlock you need to move the picture to the right