Android Question How to make Abacus moving

[diy.diskless]

I am a new B4A user.
Can anybody help me to solve this Abacus move button.
How to make this source code.

 

[Erel]

Search for DraggableView for a class that adds a transparent panel over other views and makes them draggable.

 

[diy.diskless]

Thank You.
I don't understand DraggableView for a class. but solve alreay, I use image_click event.