What is the internal structure of an Interface Builder .xib file?

Question

I'm curious, can anyone describe the internal structure of a .xib file used by Interface Builder?

Answer 1

Take a look at this blog entry.

Answer 2

Well a xib file is an XML file used by Interface Builder.

The header usually contains something similar to this:

<archive type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="7.10">

Then they consist of 'object' entries which represent objects contained within the nib.

<object class="NSMutableDictionary" key="IBDocument.PluginVersions">