iTunes U style download/progress/stop/play button

Question

iTunes U for the iPhone has these wonderful buttons that show

• the download progress
• the stop button and the
• play button (well, the "i" button)

in one place - see attached screenshot. Is this a system icon which can be called by code, or is it something thats not available for developers?

Anyhow: if someone has a source, that describes how to get such kind of buttons, I'd be very happy. It's clear to me, that the icons are controlled by a state-pattern in view-controller.

Thanks in advance.

Answer 1

There is DACircularProgress on github, it looks just like the circular progress bar on the Facebook app, I think you can take that, modify it to put the stop button on top and change the color and use it. check it out:

DACircularProgress