Question

How can I load a nib/xib file within a web view in Cocoa?

Answer 1

A xib is an xml form that gets compiled into a nib. A nib is a way for the designer to automate the creation of native iOS UIViews.

The UIWebView is a UIView that loads web content (not native iOS UIViews). Think of it as a window into some web page content. A nib/xib is just a way to layout the native view that houses the UIWebView that is a window into web content. the UIWebView loads web content and not native UIViews.

http://developer.apple.com/library/ios/#documentation/uikit/reference/UIWebView_Class/Reference/Reference.html

You use the UIWebView class to embed web content in your application.
To do so, you simply create a UIWebView object, attach it to a window,
and send it a request to load web content. You can also use this class
to move back and forward in the history of webpages, and you can even
set some web content properties programmatically.