There’s a great UI widget that’s been on iOS since day one:
Ever wonder what that black pointy bubble is exactly? It’s kind of a strange beast. The way it “bounces” when opening is an animation that I believe is unique across the entire iOS platform. It kind of grows out from the tip of the arrow then springs back like a
UIAlertView. I still find it fun and satisfying to watch.
So when we were creating our indoor mapping UI for Meridian, I naturally wanted to use this widget. Unfortunately, it’s considered a private API. Bummer!
There are some existing 3rd-party controls out there that mimic this one, but they aren’t a perfect replica. And I demand perfection! So I made my own version, and dubbed it
A Custom Callout View for iOS