Thumbnail slider in toolbar like iPad Photos app

Question

I would like to put thumbnails in the toolbar like the Photos app. Like the screenshot on the left:

_{(source: apple.com)}

Is there is a built-in control to do this, or do I have to implement it from scratch?

If the answer is from scratch, any tips?

Answer 1

This would be a control you'd have to write yourself. I'm not what the best approach would be, but I think I'd go with subclassing a UISlider, drawing the array of images next to each other to create the track, and then using the current image as the handle.