If you’re looking for a way to reveal more data about a user’s selection here’s a UI control called MBPullDownController from Matej Bukovinski that is great for this situation.
This UI control allows you to provide 2 view controllers, and automatically places one in front of the other allowing you to do use a pull gesture to reveal the back view.
You simply supply the control with the front and back view controllers, and things will be handled automatically.
Here are some images from the readme showing the control in action:
And here’s a video showing the control in action:
You can find MBPullDownController on Github here.
A handy and easy to use ui control.