This is a repost from my old blog.

We will use the last tutorial as a base to learn how to use custom segues.

Suppose you don't want to push between view controllers. In particular, suppose you want first view controller to flip to the second view controller. To achieve …

This is a repost from my old blog.

While I was at Apple’s Cocoa Camp over summer, one of the speakers talked rather passionately about the proper, thread-safe way to implement a singleton in iOS, which I thought deserves more attention than it currently does on the Web.

The …