Advice for doing a slot-machine animation

Dear all, I have 20 images and I want to create an animation like a slot-machine when a user click on a button and at the end of animation only one of the 20 image will be at the center of screen (choosen randomly). How can I do that with Qt Quick ?? (I don’t need the exact code… just some hints or pseudo-code for understanding which Item to use for doing that) Thanks, Gianluca.