Roy Marmelstein

SPStackedNavigationController is a UINavigationController drop-in replacement, which represents its content in stacks of panes, rather than one at a time. This interface trend was started by Loren Brichter in Tweetie for iPad, and has spread to many apps in many variations since.

There are two main advantages to this approach:

• You can display two pieces of main content at once, allowing you to navigate in one while using content in the other.
• Navigation is direct instead of indirect, which is faster and more intuitive to use. You actually grab the UI and pull it to where you want it. In contrast, a standard navigation controller requires you to find and tap a button with an abstract "back" concept.

The main drawback is that you should no longer use horizontal gestures, as they will interfere with navigation, or the other way around.

License: MIT