iphone - Xcode project inside project

Question

I'm taking over some project of a colleague that is on holidays now.

Other projects have gone fine, but in this particular one, I have found a project inside a project, like using a framework I guess.

So what is the name of this technique?

How to insert and interact with it? just import?

Answer 1

They are called cross project references. From the link below:

Cross-project references are a convenient way to create relationships between two separate Xcode projects.

One method of creating shared frameworks is using sub-projects. You can also do it with single projects. More here:

http://developer.apple.com/library/mac/#documentation/MacOSX/Conceptual/BPFrameworks/Tasks/CreatingFrameworks.html

Other links:

XCode 4 Adding a Sub Project